OSHA 30 2023 with 100% correct questions and answers

Those who work on a crane or near crane operations must be trained. Which of the following is true for this training? D. All of the above Certain inspections of crane equipment may be made by a(n) ___________ person; however, crane inspections are typically required to be made by a(n) __________ person. Competent, qualified After safety-related modifications have been made to crane equipment, the equipment must be inspected by __________ prior to use. A qualified person Under OSHA construction requirements for crane and derricks, when a crane operator is employed by a company, who must pay for the crane operator's certification? The crane operator's employer Inspection of hoists should include: Both A & B (Hooks & Safety latches) Hoists shall be: All of the above Daily inspections need to include: Checking of the wire rope for damage or "caging" Hoists shall be inspected: Daily, prior to use Do not perform maintenance on a conveyor until: All hazardous energies are disconnected and blocked Which crane has the ability to be "jacked-up" as needed? Tower Load charts must: Indicate rates lifting capacity and be visible to operator Standards for safety can be found in: 29 CFR 1926 Subpart CC If a crane contacts a power line, the operator should normally stay in the cab until power has been de-energized. True Above the heavy line crossing the load chart are values for failure in: Structure Cranes must maintain a minimum of ____ feet away from power lines: 10' Each of the following is true for an operator who needs the leave a suddenly energized crane EXCEPT: Walk to safety in a zigzag pattern An annual inspection of each crane: All of the above What is the minimum distance allowed between a spoils pile and trench's edge? Two feet To be classified as Type A, the soil cannot be: All of the Above A cubic yard of soil can weigh as much as: A small pickup truck A soils are usually clays and cemented soils such as caliche and hardpan. True Each of the following is Type B soil EXCEPT: Sand Which of the following are common soil classification tests? All except C The definition of type C-60 soil is provided by manufacturers to allow the competent person an opportunity to use vertical shores or... True A defining feature of Stable Rock is that it will: Remain intact while exposed OSHA requires that the competent person perform two visual and two manual tests on a soil sample fresh out of the ground and not impacted by weather conditions at the site. False A soil cannot be Type A if it is: All of the above The most important distinction between Stable Rock/Types A&B and Type C is: Degrees of stability Which of the following statements is true of kickout? All of the above Mixed oak timbers have a greater bending strength per square inch than Douglas fir. False Type B soils afford afford how many options of protection? Four In type C soil, the angle of repose is very low; how many degrees must the angle be? 34 degrees Which soil type is the most common? Type B Shores must be pumped to a minimum pf 750 pounds of pressure but more is recommended. True Aluminum hydraulic shoring permits both installation and removal without entering the trench True The struts of a screw jack system must be adjusted manually, which creates a hazard because the worker is required to: Be in the trench in order to adjust the strut The depth at which an excavation needs attention from a registered professional engineer is: 20 feet Shoring and shielding can be custom-built from tabulated data approved by a registered professional engineer. True All systems have a seat of manufacturer's tabulated data to be used for proper design and installation of the equipment. True Placing a shield between the side of an excavation and the work area can minimize the risk in the event of a cave-in. True Walkways must have handrails when at ________ or more above lower level. 6 feet Establishing eye contact with your equipment operator is a general safety principle when working outside the working radius. True All surface encumbrances must be removed or supported within: The zone of influence A competent person must inspect all excavations, adjacent areas, and protective systems daily, ____________, and as needed throughout the shift. Before work begins When using a ladder in a trench, it must be: All of the above Being dangerously close to a falling load is: Not allowed Each of the following is true of accumulating water hazards EXCEPT: Special supports or shields are not allowed Each of the following is true of underground installations EXCEPT: They must be removed A surface encumbrance is anything that could create a ___________ in or around a trench. Hazard When exposed to vehicular traffic, your evacuation site must have: All of the above Warning systems for Mobile Equipment include barricades, hand signals, stop logs. True Which are properties of cohesive soil: All of the above "Free-seeping" soil is considered submerged soil. True A hand-sized sample of cemented soil can't be crushed into a powder. True When vibrated, the cohesive material in wet soil will: All of the above An increase or a decrease in moisture can both damage trench stability. True When a vertical face of a trench shears along a tension crack line, it is known as: Toppling Tension cracks are rarely a sign of imminent trench failure. False Boiling is an upward water flow into the bottom of the cut. True Heaving or squeezing can occur even when shoring or shielding has been properly installed. True An unsupported excavation can create an unbalanced stress, causing: All of the above Fissures are small cracks of stress in an exposed surface. True Time and weather are not major influences in soil stress. False A "slippery sheet" is a potential characteristic of: Layered systems The "adjacent area" is area on either side of the trench cut equal to the depth of the trench. True If cracked, fissured, vibrated, or otherwise disturbed, soil is not: Type A Type C Soils are rated at below 0.5 tsp (tons per square foot). True Soil Types A, B, and C, are ranked in ________ order of stability: Decreasing Stable Rock: All of the above The error rate of the pocket penetrometer is between 20% and: 40% Pocket Penetrometers are: All of the above A common visual test is to: All of the above The Thumb Penetration Test is subjective and the least accurate test. True If you have a trench greater than 20 feet deep: You must use a Registered Professional Engineer In most cases, Type A soil can be sloped up to: 3/4 to 1 In layered soils, which layer has the most critical influence on the slope of the excavation? Bottom layer Selection of size and spacing of Shoring members are based on height and width of trench. False Shoring is covered in the OSHA standards subpart P: A and B only. One advantage to using shoring tables is not having to determine the soil type. False Which of the following variables is not considered in the timber shoring tables found in appendix C? Slope of excavation Shoring: Is any mechanical system used to prevent collapse of an excavation. The decision whether to use sheeting with aluminum hydraulic shoring depends primarily on the soil type you have. True If you are using sheeting with aluminum hydraulic shoring, what do we know about the shores, or wales? They are installed horizontally Aluminum hydraulic shores are usually installed _________ in Type A soil. Vertically Given Type A soil, dry conditions and a 40-ton piece of equipment near the edge of the trench, what do we know? Both B and C When vertical shores are used, there must be a minimum of ________ shores spaced equally, horizontally, in a group. Three Job-built trench boxes are never allowed in construction. False When stacking trench boxes: Both A and C Earth excavation to a depth of ___ ft below the shield is permitted. 2 If using a trench box in combination with sloping or benching the box should extend at least ______ above the adjacent slope. 18 inches When using trench boxes, why is the space between the box and trench wall backfilled? To prevent lateral movement of the box Trench boxes don't prevent cave-ins, but do protect people. True Common injuries resulting from handling materials include: Back injuries, crushing injuries, cuts & lacerations Overexertion is the #1 cause of workplace injuries. Overexertion is caused by excessive effort or force when: Both B & C Before starting work, prevent accidents by: All of the above Which of the following are common causes of material handling injuries? Both A & C To lift loads safety, you should bend your body at the: Knees When you can't avoid lifting or carrying, which of these should you do? A, C, and D You must move a heavy compressed gas cylinder about 50 feet. There is no cart or dolly nor any lifting equipment. What should you do? Both B & C When using hand trucks, dollies, or carts: Both A & B Which of the following are forklift rules of the road? All of the above The forklift operator should know weight of materials to be moved, limitations of equipment and load capacity chart. The operator should also ensure that: Surfaces are level, free of hazards, and designed to withstand load. Conveyor systems present many hazards when in operation. However, when shut down for maintenance, what is especially important? Lockout and tagout the system Inspect your forklift and read instructions: Prior to use When inspecting a wire rope sling, you find that seven wires in one strand are broken. What should you do? A and C To transport or lift materials with a crane; slings, chains, grabs, shackles, and/or ropes are considered part of the: Lifting system As a rule, grabs, hooks, spreader-bars, or any other rigging attachments should have a lifting capacity ________ of the sling being used. Equal to or greater than that Synthetic slings should be inspected by a competent person for abnormal wear, powdered fiber between strands, broken or cut fibers and much more. What should also be permanently affixed to the sling? ID tag stating size, grade, rated capacity and manufacturer Structural steel, poles, pipe, bar stock, and other cylindrical materials, unless racked, shall be stacked and blocked... 5 feet Lumber must not be stacked any higher than: 20 feet with mechanical equipment, 16 feet when stacked manually When debris cannot be handled by chutes, the material may be dropped into a designated area. What is needed if this is done? All of the above Prior to disposal of waste material you must determine the proper method of disposal and personal protective equipment. Always consult the ______________ for all materials prior to disposal... Safety Data Sheet or SDS Never allow materials, suppliers or obstructions to block? Both A and B A clean organized job site is a key component of a safe job site...Work areas shall be inspected _______ for adequate housekeeping. Daily Unstable objects may be used to support scaffold legs: Never Scaffolds and scaffold components must be inspected for visible defects by a competent person: Both A and B Scaffolds must bear on adequate firm foundations such as Base plates set on mud sills All scaffold users must be trained in the following areas: Electrical safety, fall protection, scaffold loads, and falling object protection Scaffolds frames may be used as a means of access only if they: Are specifically designed by the manufacturer and constructed for use as ladder rungs Falls from scaffolds represent what percentage of all fall fatalities 17 Scaffold frames must be pinned or secures together whenever A, B & D above Cross bracing may be used as a midrails or top rail depending upon the hight at which the rail center sits in relation to the platform True Scaffold plates on which feet or jacks rest must be a minimum of: B & C above Frame Scaffolds exceed 125 feet shall be Designed by an engineer The maximum distance between the last plank in a fully planked platform on a fixed width tubular welded frame scaffold and the outside of the frame in: 10 inches Guardrails, midrails and toe boards are required on all scaffolds 10 feet or higher A rolling scaffold cannot exceed ______ times its narrowest dimensions unless it is secured to a structure 4 Under Federal OSHA, surfing (self-propelling) on a rolling scaffold is allowed on construction job sites: Never Rolling scaffolds designed by a registered professional engineer can be built as high as 125 feet False A person can ride on a rolling scaffold while it is being moved as long as the scaffolds more than 4 times higher than the narrowest base dimension. False Rolling scaffolds must be inspected by a competent person daily before use. True Frame scaffolds which exceed 4 times their narrowest bade dimension shall be: Secured to the building Tebulat Welded Frame Scaffold Frames may be installed without feet or jacks Never Employees must wear protective head and face equipment when: Applying cement, sand, water mixture through pneumatic hoses Fall protection must be worn to place or tie reinforcing steel when working above Federal and State specific height limits True Construction loads should not be placed on a concrete structure or portion of a concrete structure unless it has been determined safe to do so by a: Person who is qualified in structural design Employees must not be permitted to work under concrete buckets except when wearing a hard hat False No employee shall be permitted to enter storage facilities unless the ejection system has been: All of the above Bulk storage bins, containers, and silos shall be equipped with: Both A & B The tag in the lockout tag out procedure must read: "Do Not Start" or something similar Masonry saw shall be guarded with a: Semicircular enclosure over the blade _____________ must be designed, fabricated, erected, supported, braced, and maintained so that it will be capable of supporting without failure all vertical and lateral loads. Formwork Determination to remove forms and shores in based on: Both A and B A __________ ______________ ___________ must be established prior to masonry wall construction. Limited Access Zone Masonry wall construction that is more than 8 feet and unsupported: Must be braced Lifting inserts that are embedded or otherwise attached to tilt-up wall panels must be capable of supporting at least __________ 2 times Under no circumstance must any employee who is not essential to the jacking operation be permitted immediately beneath a slab while it is being lifted. True Cement and concrete dust can be a hazard to a workers: All of the above Information about ingredients, hazards and safe work practices of cement and concrete products can be found: All of the above Wet concrete or mortar trapped against the may cause first, second, or third degree burns or skin ulcers. True