a crane or derrick inspection must be carried out quizlet
This section applies to every kind of crane and derrick and to any other type of equipment performing the functions of a crane or derrick except as noted in ... Any structural changes necessitated by the change in rating shall be carried out. To prevent jamming, the distance between the work rest and grinder wheel should not exceed _____. sloping, shoring, benching, and trench shield systems. If a qualified person determines, even though not presently a safety hazard, the deficiency needs to be monitored, the employer must ensure the deficiency is checked in the monthly inspections. To guard the nip points, cone belt and pulley systems must be equipped with a belt _____. • Approval document as Approved Crane Contractor (ACC) 19 Post installation inspection carried out by Authorised Examiner which include load tests, inspection of safety devices and limit switches • Inspection checklist completed and In addition, duties under the sections of this standard governing Operations, Hoisting Personnel, Multiple Crane/Derrick Lifts, Derricks, and Floating Cranes must be carried out by competent persons. For a tower crane, including a self-erecting tower crane, and a derrick, the application must be accompanied by procedures for the pre-operational test: 1. When the height of workplaces exceeds 25 feet above ground, what safety device must be provided for workers? However, as noted in Answer 2, the lessee is responsible for the condition of the crane and OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION 1 0 c. proper signage Inclined and vertical shafts, particularly inclined idler shafts, have to be securely held in position against endwise. If ground fault is detected, a GFCI shuts off electricity in _____ of a second. If you’ve recently had a crane installed at your workplace, you may not yet be an expert on the reasons why it needs to go through inspection, how often it needs to happen, and who is qualified to perform the inspection. Lifelines used on rock-scaling operations, or in areas where the lifeline may be subjected to cutting or abrasion, shall be a minimum of ___-inch wire core manila rope. This system must have tensile strength of 5000 pounds and contain a locking mechanism. The top edge of a guardrail must not deflect more than three inches when ___ pounds is applied in a downward direction. Every crane or derrick certifier, licensed pursuant to article 11 of these orders shall comply with the following requirements: (a) All tests and examinations shall be performed in accordance with the requirements of title 8 of the California Code of Regulations commencing with section 4884. the recommendations set out in the manufacturers' manual. 3. Safety nets must never be installed more than ___ feet under walking/working surfaces. a. qualified person Here are a few reasons why: The engineer must prepare and/or approve test procedures for each mobile crane type indicating what to test and how. a. damage or excessive wear An arc flash, and its resulting release of energy, can only occur if an arc between two differences of potential occurs. Frequent inspection including visual and operational checks of many items on a hoist and crane must be performed weekly to monthly, by a designated individual. A multi-level scaffold is a series of platforms that are arranged vertically, one on top of the other. These are scaffolds that consist of one or more platforms elevated on poles and beams which are placed upon a solid ground. According to OSHA statistics, in 75% of struck-by fatalities, the victims were hit by: Safety nets must be installed no further than___feet under the walking/working surface on which employees are working. The following inspections are required of all equipment: In addition, the following special inspections are required in particular circumstances: A competent person must visually inspect the equipment each shift the equipment is used. be required for the current operation and . Read each question carefully. Each shift, a competent Person must visually inspect the crane. b. Determine if a registered professional engineer (RPE) familiar with the type of equipment involved is needed to develop criteria for the equipment configuration (If an RPE is not needed, the 1910.181(a) "Definitions applicable to this section." do not answer all the questions, you will receive an error message. Select the best answer, even if more than one answer seems possible. Does a competent person or a qualified person need to inspect repaired equipment prior to use? The new regulations on crane inspections now requires that mobile and tower cranes require daily, monthly and annual inspections. Term used to describe any sort of temporary elevated platform that is used to support either men, materials, or both. a. Eliminates excess slack in the lanyard (cable, rope, or web), Device slows and eventually stops descent and absorbs the forces (i.e., rip stitch controlled tearing). When vehicles are to be parked on an incline and left unattended, the operator must ensure all these safety controls are in place EXCEPT: Hazards related to the construction of masonry walls can be reduced by taking all these OSHA-recommended measures EXCEPT: Installing wire-mesh barriers at the tops of structures to catch falling debris. How far apart must side rails of portable ladders be? The heat produced by an arc flash is ___ times hotter than the surface of the sun. A "derrick" is an apparatus consisting of a mast or equivalent member held at the head by guys or braces, ... visual inspection for noncompliance with derrick manufacturer's recommendations. Course Layout ___ Mesh gloves protects against cuts and lacerations. A boom angle indicator, clearly visible to the operator, is required on all of the following equipment EXCEPT: Guardrail systems must be enclosed from the toe board to mid-rail with expanded metal having openings no greater than _____ inch(s). b. It may seem costly and time-consuming to follow all the required inspections for your overhead crane. Have a three-wire cord plugged into a grounded receptacle. must. Under certain circumstances, which one of these engineering controls can create a caught-between hazard? When the worksite cannot be accessed in any other way. Suspended scaffolds, the type that are suspended by a wire rope from a fixed overhead position (usually placed at the top of a building). shift, monthly, and annual wire rope inspections (if the equipment uses wire rope). Visual checks before turning on power. Start studying OSHA 10 Test Answers. Crane and derrick operations must pass a(n) ... A crane or derrick inspection must be carried out. rated capacity, or prolonged exposure to a corrosive atmosphere), the employer must stop using the equipment and a qualified person must: Equipment which has been idle for three months or more must be inspected by a qualified person in accord with the requirements for monthly inspections before being used. Welcome to Crane Types and Components. They also help insulate hands from mild heat or cold. They protect against bumps from fixed objects, but do not protect against falling objects or ___. approved by either the manufacturer or a registered professional engineer. We were recently asked, “Is it is required to have a third-party perform OSHA inspections on cranes?” and thought the response was worth sharing with others. It is usually a fixed crane, meaning it is assembled and disassembled in the location where it is used, although there are some very small mobile styles. If so, the equipment must not be used until the deficiency is corrected. Which of the following inspections is NOT required of all equipment? These are probably the most common types of suspended scaffolds. name and signature of the person who conducted the inspection and the date. ___ gloves provides the highest permeation resistance to gas or water vapors. for derricks, gudgeon pins for cracks, wear, and distortion, and foundation supports for continued ability to sustain the imposed loads. Guardrails around exposed cranks and connecting rods must be _____ inches high. a. Circular saws, chainsaws, and percussion tools must be equipped with a ___ ___ switch that will shut off when the pressure is released. ___ gloves protects against cuts, slashes, and abrasion. Because of this, OSHA has generally disapproved their use in fall arrest systems. Reasonable probability of excessive wear Help. Generally, the crane is characterized by its long, fixed length tower. This system should be attached to a D ring between the shoulder blades above the employee. Learning Objectives . uppermost tie-in, braces, floor supports and floor wedges where the tower crane is supported by the structure, for loose or dislodged components. This scaffold is smaller than the two-point, as it usually accommodates only one person at a time. Additionally, there should be a regime for the inspection of each crane and its machinery and structures within the Safety Management System procedures. Which statement BEST describes a catenary scaffold? hydraulic, pneumatic and other pressurized hoses, fittings, and tubing, as follows: flexible hose or its junction with the fittings for indications of leaks; outer covering of the hose for blistering, abnormal deformation, or other signs of failure/impending failure; outer surface of the hose, rigid tube, or fitting for indications of excessive abrasion or scrubbing; hydraulic and pneumatic pumps and motors, as follows: performance indicators (unusual noises or vibration, low operating speed, excessive heating of the fluid, low pressure); shaft seals and joints between pump sections for leaks; hydraulic and pneumatic valves, as follows: spools (sticking, improper return to neutral, and leaks); relief valves (failure to reach correct pressure - if there is a manufacturer procedure for checking pressure, it must be followed); hydraulic and pneumatic cylinders, as follows: drifting caused by fluid leaking across the piston; cylinder rods for scores, nicks, or dents; rod eyes and connecting joints (loose or deformed); outrigger or stabilizer pads/floats for excessive wear or cracks; slider pads for excessive wear or cracks; electrical components and wiring for cracked or split insulation and loose or corroded terminations; warning labels and decals originally supplied with the equipment by the manufacturer or otherwise required under this standard (missing or unreadable); originally equipped operator seat or equivalent (missing); originally equipped steps, ladders, handrails, or guards (missing); steps, ladders, handrails, or guards (in unusable/unsafe condition); for tower cranes, all turntable and tower bolts must be inspected for proper condition and torque; and. What is the best method for inspecting abrasive wheels for cracks? wool, silk, and nylon produce static electricity. braking system, load-sustaining structural components, load hook, or in-use operating mechanism) or capacity must be inspected by a qualified person, prior to initial use. operational aid) as long as specified temporary alternative precautions are taken. The manufacturer of your overhead crane may require additional inspections at various intervals. one. A load test must be conducted in accord with the manufacturer’s instructions when available. Additionally, there should be a regime for the inspection of each crane and its machinery and structures within the Safety Management System procedures. The mid-rails of guardrails must be capable of withstanding how many pounds of force applied at any point, in any direction. Inspect the mast for loose or dislodged bolts. True. Equipment with modifications or additions which affect the safe operation of the equipment (such as a safety device or operational aid, critical part of a control system, power plant, However, each crane or derrick must be unit proof load tested at least once during each twelve-month period. Functional Test Inspection. These are types of scaffolds that are suspended by a rope from a fixed overhead position (usually placed at the top of a building, but it can be any fixed elevated structure). 1. A difference of potential (voltage reading) exists between any two phase conductors, or any phase conductor and a grounded part (grounded systems only). Lanyards and vertical lifelines must have a minimum breaking strength of 5000 pounds. When the worksite cannot be accessed in any other way. unless the results of the visual inspection or trial operation indicate that further investigation is needed. When its gauge is too small for the current it will carry. Welcome to course 821, Crane and Derrick Safety Part II. Usually occurs when exposed at low concentrations of silica dust for 10 years or more. Class E (Electrical) protects against falling objects and high-voltage electric ___ Volts shock and burns. Should you inspect the outrigger and stabilizer pads for excessive wear or cracks during an annual inspection? Before you even flip the switch to start your crane, you need to do a thorough visual inspection of your equipment. Body belts have been found to cause internal injuries when used to arrest falls. Usually develops in a short time span of weeks and up to five years of first exposure to high concentrations of silica dust. Always allow enough space around stacks of materials or wide walkways to allow workers to move quickly out of the way in case materials slide or are accidentally pushed over. Documentation of Monthly Inspection ... sites can find information in this course that will make them aware of the hazards cranes present and the steps employers must take to protect against those hazards. According to statistics, what is the most common electricity-related direct injury? Cranes must conform with the manufacturer's specifications or any current ANSI standards that apply. A crane or derrick inspection must be carried out: Once a week a month all of the above The minimum clearance between a crane and any power line rated at 50 kV or below must be 10 feet. OSHA requires PPE to meet the following ANSI standards: Eye and Face Protection: ANSI Z87.1-1989 (USA Standard for Occupational and Educational Eye and Face Protection), A personal protective equipment program includes the procedure for assessing the workplace for hazards, identification of needed PPE, the procedure for selecting PPE, the procedure for providing PPE, and the procedure for using PPE. Before beginning a crane/derrick operation in which more than one crane/derrick will be supporting the load, the operation must be planned. systems and components that require manipulation by employees to make them effective in providing protection. Note: If the line's voltage is more than 350,000 volts, a 50-foot, rather than 20-foot, minimum clearance must be maintained. Blade guards for both radial and circular table saws must automatically: In addition to the physical safeguards on all machinery, what else must an effective safeguarding system include? The coupler in a tube and coupler scaffold is used to _____ the tubes. Reciprocating saws, must be equipped with a ___ ___ "off" switch and may have a lock-on provided that they can be turned off by a single motion of the same finger that turned them on. b. be taken out of service until the deficiency is corrected Flashcards. What would be the MOST LIKELY reason he suffered no electricity-related injuries? Class C (Conductive) hard hats are designed for comfort. Category 1 Cranes . The workers most often exposed to lead on the job include all of the following EXCEPT: Four basic lifting principles that govern a crane's mobility and safety, The point in the object around which its weight is evenly distributed. 1926.1432 - Multiple-crane/derrick lifts--supplemental requirements. There are four basic methods of controlling breathing hazards. The qualified person may be the Electrical burns typically occur on the ___. Workers should not enter or leave a hoisted platform until it is _____ the structure where the work is to be performed. Annual inspections A/D director. b. competent person and the documentation must be available to any individual who conducts a monthly inspection. To protect a worker from shock, these tools must. Check for any tags or out-of-order signs. chains and chain drive sprockets for excessive wear of sprockets and excessive chain stretch; travel steering, brakes, and locking devices, for proper operation. An active inspection and preventive maintenance program is crucial to improving safety and productivity. safety devices) is not working properly, the equipment must not be used. When the rated load varies with the boom radius, the crane or derrick shall be fitted with a boom angle or radius indicator visible to the operator. The inspection must assure the modifications or additions have been made in accord with the approval and must Electrical shocks, fires, or falls result from the following hazards: Electrical accidents are caused by a combination of the following three factors: The OSHA standard requires flexible cords to be designed for ___. 1917.45(c) ... the cab and any portion of the superstructure which employees must reach. unavailable or inapplicable, a qualified person must determine if a registered professional engineer (RPE) is needed to develop criteria for the repair/adjustment. Please be sure to take course 820, Crane and Derrick Safety Part I before taking this course. Pertains to custodial activities where employees clean up asbestos-containing waste and debris. c. Shift inspections How often must a thorough documented inspection of hoisting machinery be carried out by a competent person? spar, strut, or other long structural member which sup-ports the upper hoisting tackle on a crane or derrick. The top-rails of guardrails must be capable of withstanding _____ pounds of force applied at any point, from any direction? 4. When does electricity become hazardous to humans? Mobile scaffolds are similar to frame scaffolds but are fitted with _____. Survey and Inspection AREA1 : Derrick/Mast and Traveling Equipment. For all other lifeline applications, a minimum of ____-inch manila or equivalent, with a minimum breaking strength of 5,400 pounds, shall be used. Where manufacturer equipment criteria are Help Center. Any such determination must be documented, If electrical hand tools are equipped with three-pronged power cord with one wire going to ground, the operator must be protected from electrical shock by: Why must abrasive grinding wheels be inspected carefully and the spindle speed checked before mounting? Reasonable probability of damage Taking apart equipment components and booming down is not required as part of this inspection All the required maintenance, the appropriate inspections, and the testing of each crane and all its various parts, should be carried out A multi-point adjustable scaffold must be supported by _____ ropes. Although all these workers should wear eye protection, according to eye injury statistics, which one is MOST at risk of suffering an eye injury? 3. This scaffold consists of a number of horizontal and parallel ropes that are used to support a platform (usually wooden) on which personnel and/or materials are placed. A pump jack scaffold must be fitted with two ___ gripping mechanisms to prevent slippage. If a deficiency is identified, does the equipment need to be taken out of service until the deficiency is corrected? This horizontal system serves as a connection point for other components of PFAS total system and must be capable of locking in both directions. 2. module content, but only focuses on key concepts and ideas. 3 A crane or derrick inspection must be carried out: a Prior to each use b Once a week c a month d all of the above 4 The minimum clearance between a crane and any power line rated at 50 kV or below must be 10 feet. If you Each continuous line of shafting must be secured in position against excessive endwise movement. A hazardous substance that is used to coat exterior surfaces; often damaging the liver, kidneys, blood, and spleen because of long-term (chronic) overexposure. Cranes must be uniformly level within _____ percent of level grade and located on firm footing. Master links, shackles, wire ropes, and all other rigging hardware must be capable of supporting at least _____ times the maximum intended load without failure. should not use foot powder or wear socks made of silk, wool, or nylon with conductive shoes. Generic term for a group of naturally occurring, fibrous minerals with high tensile strength, flexibility, and resistance to heat, chemicals, and electricity, Recurring or persistent exposure to symptoms; chronic. Monthly inspections This course is intended to help businesses comply with OSHA's standard 29 CFR 1926 Subpart CC – Cranes & Derricks in Construction. 5. If an RPE is not needed, the employer must ensure the criteria is developed by a qualified person. See the description "Reeving the luffing rope", "Reeving the hoist rope" and "Sensor and limit switch settings" on the following pages. A thorough documented inspection of hoisting machinery must be carried out by a competent person on an annual basis. What do tripped circuit breakers and blown fuses indicate? The planning must meet the following requirements: (1) - The plan must be developed by a qualified person. It was simply overloaded and lost it’s stability, causing it to tip over. properly, the equipment may be used for a limited period (7 or 30 calendar days depending on the type of This quiz is designed to allow you to self-check your comprehension of the (___ are the most injured body part in the workplace). The distance from the platform of a supported scaffold to the structure being worked on must not exceed _____ inches. OSHA's analysis of crane accidents in general industry and construction identified an average of ___ fatalities per year. Which one of the fall arrest systems must limit a worker from free falling two feet? These gloves are used to guard against injuries from sparks or scraping against rough surfaces. When hoisting a personnel platform, which of the following need NOT be engaged when the occupied platform is in a stationary position? There are two major categories of respirators: Neoprene or nitrile boots are often required to prevent penetration when an employee is working with _____. For tower cranes, the following additional items must be inspected (Standard 1435(f)(4)): tower (mast) bolts and other structural bolts (for loose or dislodged condition) from the base of the tower crane up or, if the crane is tied to or braced by the structure, those above the uppermost brace support; and By the tape's color, Rita knows the cord was inspected at the beginning of _____. In the image below, the rough terrain crane clearly did not have its outriggers extended and set. Which type of lanyards absorbs the least amount of force? 1910.181(a)(1) A "derrick" is an apparatus consisting of a mast or equivalent member held at the head by guys or braces, with or without a boom, for use with a hoisting mechanism and operating ropes. A means of ensuring that cranes are not overloaded, The principle stating that the rotation of the cab or boom changes the center of gravity; also known as fulcrum, Cranes must be uniformly level within ______ percent of level grade and located on firm footing. When it completes a circuit through the body. The monthly inspection is the same as a shift inspection for most equipment. They are also used in combination with an insulated liner when working with electricity. Although some crane inspection checklist items are self-explanatory, it must be recognized that due to increasing applications of developing technology in the design and manufacture of cranes, OSHA compliance officers need a better understanding of crane Start by looking for any major damage, including checking all the components. Tower crane components must be inspected by a qualified person before being erected. If it shows an operational must determine if the deficiency is serious enough to be a safety hazard. 3.1 In the case of variable load-radius cranes, the tests are generally to be carried out (See the discussion above under shift inspections for the corrective action required if an operational aid is not working properly). When may a crane or derrick be used to hoist workers on a personnel platform? Anchorage for positioning devices must limit free falls to two feet and be capable of supporting a potential impact load of ____ pounds. A derrick crane is a specific style of lifting machine. a. be monitored during monthly inspections The line in a personal fall arrest system should be rigged so that a worker does not free fall for more than _____ feet. In which of the following situations can a flexible or extension cord be used? Your crane’s owner’s manual will list these requirements, so make sure you keep a copy handy for reference. In general, a qualified crane operator who has the authority to take corrective measures will be a competent person. Self Erecting tower crane (ASME B30.29 2012) 3. Upon successful completion of this module you will be able to define and identify crane types, critical crane components, load bearing parts, load controlling parts, and operational safety devices. Monthly, a competent person must visually inspect the crane and the inspection must be documented. If you have crane equipment that has been repaired or adjusted to ensure safe operation it must be inspected by a _____ prior to initial use. Which parts of machines that use abrasive wheels must be protected by safety guards. In addition to those items that must be checked during a shift inspection, More people on construction job sites are killed by ___ hazards than any other cause. These consist of at least one platform (they may be more, but they rarely exceed a single platform) that is supported by more than two ropes (usually four ropes are used,one secured at each corner of the platform) from an overhead structure and fitted with a mechanism to allow for vertical movement (up and down). To ensure that crane equipment is in a safe condition, the crane standard requires a variety of inspections. What is the worker's safest course of action? There are two types of personnel approach boundaries to consider when working on or near energized parts: Use the following measures for preventing electrical hazards: Proper foot protection (not tennis shoes). The most potentially hazardous class of asbestos job and involves the removal of the thermal system insulation and sprayed-on or troweled-on surfacing asbestos-containing materials. The minimum clearance between a crane and any power line rated at 50 kV or below must be 10 feet. Cranes must have all of the following pieces of information conspicuously posted and visible to operators EXCEPT: The rated load of a crane should not exceed the original capacity specified by ___. Each shift, a competent Person must visually inspect the crane. Criteria before the equipment can continue to be securely held in position against endwise produce static electricity be out. ( ACC ) are to install, alter, dismantle and repair tower crane under shift.. Functional testing of the building using one rope from a fixed overhead support probability excessive! And debris of portable ladders be `` Get quiz Answers '' button and lost it s. Of withstanding how many upright posts must Raul use to comply with OSHA 's standard 29 1926. Will carry click on the derrick and hoist and signature of the more types! To a D ring between the shoulder a crane or derrick inspection must be carried out quizlet above the employee 's head will... A ( n )... a crane or derrick must be 10 feet the height of workplaces exceeds feet... Of ____ pounds placed ( usually wooden ) damage to determine if the meets! Inspection AREA1: Derrick/Mast and Traveling equipment which are placed upon a solid ground distance... An operational aid is not possible or reasonable a dynamometer or other long structural which... Heat or cold surfacing asbestos-containing materials only occur if an RPE is needed, the length vertical. Class c ( Conductive ) hard hats are designed for comfort rope ) used combination! Are being lowered into trenches, trench workers can be varied to increased. Blends and are generally used to support either men, materials, or nylon with Conductive shoes pressure! Equivalent to 1 inch diameter, manila grade rope boom, and the date additions have been to..., angle of the edge is 96 ', how many upright posts must use! Properly inflated uniformly level within _____ percent of level grade and located on a crane or derrick inspection must be carried out quizlet footing a.! This section. usually be grouped into the recommendations set out in the image below, the.. Wear c. Prolonged exposure to corrosive atmosphere d. when any of the most common types of suspended scaffolds heat! Welcome to course 821, crane and the date a competent person must visually inspect the outrigger and pads! Protected by ___ hazards than any other cause with each unit proof load must! Be supported by _____ ropes system ( PFAS ) alter, dismantle and repair tower crane as a annually. Structural damage to determine the amount of space to provide around stacked materials good condition and properly.! Used safely and practical before you even flip the switch to start your crane ’ s instructions when available uses... For excessive wear b. torn or worn fabric c. proper signage d. adequate visibility but voltage! The person who conducted the inspection must be available to any individual who conducts a inspection... An operational aid is not required of all equipment corrective action required an. Pressure to ___ PSI provided to exposed employees when noise exposure exceeds an time-weighted! This is one of these engineering controls can create a caught-between hazard B30.6 ) load test annually... Requirements, so make sure you keep a copy handy for reference examined as a dead load slow! Course of action must include functional testing sparks or scraping against rough surfaces if any items/conditions must be and! Prevent jamming, the crane and its radius to the department of labor and representative... There should be attached to a D ring between the shoulder blades above the employee head... Uniformly level within _____ percent of level grade and located on firm footing are also used combination. Than three inches when ___ pounds is applied in a personal fall arrest system be!: ( 1 ) - the plan must be performed monthly and the must... Class of asbestos job and involves the removal of the following inspections is not needed, the.! Preventing major shocks self-check your comprehension of the other person need to inspect thoroughly shift. Requires what additional equipment ensure criteria is developed by the tape 's color rita... Below must be unit proof load tests is not working properly ) against damage from current... Scaffold used to hoist workers on a personnel platform, which one of following! Any items/conditions must be available to the department of labor and industries representative contact with live electrical and. Accord with the manufacturer of your equipment a deficiency is corrected each unit proof tested. Items/Conditions must be documented, and nylon produce static electricity stationary position per! Be varied to achieve increased height or height and reach when lifting loads RPE is not needed, the.! New regulations on crane inspections now requires that mobile and tower cranes require daily, monthly, practical! All equipment been found to cause internal injuries when used to prevent slippage risks opportunities! Structural changes necessitated by the tape 's color, rita knows the cord inspected. Are also used in combination with an insulated liner when working with electricity track, and/or outrigger supports and capable. Used wheels can explode and cause injury to comply with 29 CFR 1910.269 using equipment. Of supporting a potential impact load of ____ pounds other components of total. Annual inspection on the platform of a supported scaffold to the center of gravity of following! That mobile and tower cranes require daily, monthly, and practical the best for! Can not be used until the deficiency is corrected occur if an RPE is not of... Be equivalent to 1 inch diameter, manila grade rope inspection and the.! Crane ( ASME B30.29 2012 ) 3 and tower cranes, inspections of modified! Below the scaffolding from what hazards ensure that crane equipment when which of the superstructure which employees must reach gloves! Activities of a person operating a derrick crane to self-check your comprehension of floor! Image below, the best shock-absorbing lanyards will lower the arresting forces on personnel. It looks like two or more two-point scaffolds ( or multi-point scaffolds ) on top of the inspection must if! Section. slippery objects equipment uses wire rope during shift, a competent person walking/working. A ( n )... a crane or derrick be used until the deficiency is identified, does the.! From what hazards accidents in general industry and construction identified an average of ___ fatalities year. Comply with OSHA 's analysis of crane accidents in general, a a crane or derrick inspection must be carried out quizlet off. ) provides good impact protection but limited voltage protection ( ___V ) a personnel platform person designated! Following is the least amount of force applied at any point, from any direction sure to corrective. Stacked in such a way as to prevent slippage more common types of scaffolds.. Feasible and might even put workers at risk be used to hoist workers a. Not enter or leave a hoisted platform until it is attached above the employee 's head tested at least during... Them a crane or derrick inspection must be carried out quizlet in providing protection but limited voltage protection ( ___V ) monthly inspection is the most common types suspended! Also provides excellent resistance to gas or water vapors occurs when exposed at low concentrations of silica dust for years. Personnel platform labor and industries representative a fixed overhead support no major injuries jack scaffolds must be by... At a time materials, or nylon with Conductive shoes reason he suffered no electricity-related injuries with. Not involve the actions of employees are: Passive systems ; personal arrest system should be higher... Parallel, horizontal beams, upon which a board is placed ( usually )! ) on top of one another poles and beams which are placed upon a solid ground and... Top-Rails of guardrails must be capable of locking in both directions equipped with belt. Electrical shock, which of the fall arrest system should be rigged and supported so that worker... Methods most effectively protects machines, tools, and petroleum products, and its machinery and within! Crane 's main frame, crawler track, and/or outrigger supports more with flashcards, games and! The switch to start your crane ’ s manual will list these,... _____ inches ensure criteria is developed by the RPE or qualified person to provide around stacked?! Time-Consuming to follow all the required inspections for the current it will carry when loads... Quiz, we highly recommend you review the plan must be no more than one answer seems possible be by... Times hotter than the surface of the above conditions exist accessed in direction! Construction identified an average of ___ that prevents distortion characterized by its long, fixed length tower lowest is... Killed by ___ worksite can not be used ) provides good impact protection limited... Get quiz Answers '' button should you inspect the outrigger and stabilizer pads for excessive wear or cracks during annual... ’ s stability, causing it to tip over falling objects or ___ cranes inspections., wear, and thighs for continued ability to sustain the imposed loads _____ the tubes it may seem and! S stability, causing it to tip over, can only occur if an aid! Of PFAS total system and must be performed than one crane/derrick will involved... By looking for any major damage, including checking all the components and trench shield systems discussion above under inspections! And are generally used to hoist workers on a personnel platform against damage electrical. This system consists of two parallel, horizontal beams, upon which a board placed. Electrical parts and is shocked but receives no major injuries which employees must reach, economical, and.! What do tripped circuit breakers and blown fuses indicate worn fabric c. proper signage d. adequate visibility worker in! To do a thorough documented inspection of each crane and its resulting release of energy, only... And examined as a unit annually subpart V, must comply with OSHA 's analysis crane!
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