Free CHST practice test

Question 1

In a temporary fabrication area on a job site, a crew sets a heavy stationary machine that is designed for a fixed location directly on the concrete slab without any fasteners. After a few hours of operation, vibration has made the machine creep several inches across the floor. The machine's point-of-operation guards are all in place. What does the standard require the crew to do?

1. APost a warning sign on the machine and keep other workers outside the painted line
2. BLeave it unanchored, since the movement is minor and the guards are in place
3. CSecurely anchor the machine so it cannot walk or move during operation
4. DPaint a line around the machine and have the operator push it back into position at the start of each shift

Question 2

A crew needs a wire rope bridle to hoist a precast panel. They have a length of wire rope and several U-bolt clips, and the foreman proposes forming the eye at each end of the bridle with clips. He says the clips will be installed with the number and spacing from Table H-2 and with the "U" section on the dead end of the rope. What is the correct response?

1. AApprove it, because using the Table H-2 number and spacing of clips makes a clip-formed eye acceptable on a wire rope bridle or sling
2. BApprove it, because placing the "U" section against the dead end of the rope is the requirement that controls eyes in wire rope slings
3. CApprove it as long as a knot is also tied in the tail end of the rope at each eye as backup to the clips and the clips are checked for tightness before the lift
4. DDo not use the clip-formed eyes, because eyes in wire rope bridles and slings cannot be formed by wire rope clips, however carefully the clips are installed

Question 3

A contractor's draft emergency action plan for a building renovation assigns escape routes by floor, names the employees trained for rescue and medical duties, tells workers to report fires by calling the site emergency number, and lists the safety manager's job title for questions about the plan. During a drill, no one could say whether a two-person drywall crew had made it out. Which minimum plan element is missing and should be added to fix this gap?

1. ANames of the subcontractors' insurance carriers to notify after an evacuation
2. BProcedures to account for all employees after emergency evacuation has been completed
3. CProcedures allowing employees to re-enter the building to look for missing coworkers
4. DA map showing the location of every fire extinguisher on the site

Question 4

A structural collapse at a high-rise construction site draws the city fire department, a county sheriff's rescue team, the general contractor's safety staff, and a utility crew. Responders from each agency use different radio codes and their own names for the same locations, so the safety technician cannot relay accurate information between them. Which NIMS guiding principle, if applied, most directly fixes this problem?

1. AMutual aid, because incidents may involve interstate assistance and outside resources
2. BUnity of effort, because coordinating activities among organizations achieves common objectives
3. CFlexibility, because NIMS scales to incidents that vary widely in hazard and geography
4. DStandardization, because common terminology enables effective communication among organizations

Question 5

A framing contractor has 10 of its own employees working beneath an overhead hazard where the applicable standard requires hard hats. The employer issued hard hats to 7 of them and never provided hard hats to the other 3. During an inspection, how may the compliance officer treat the failure to provide PPE?

1. AAs up to ten separate violations, one for every employee exposed to the overhead hazard
2. BAs up to three separate violations, one for each employee who was not provided a hard hat
3. CAs a single violation of the employer's overall PPE program, regardless of how many employees lacked hard hats
4. DAs a single violation, because the employer provided PPE to most of the crew

Question 6

A standard requires that a sling used for a lift be "suitable." On a steel-erection task, a crew plans to use a synthetic web sling whose rated capacity comfortably exceeds the weight of the load. The load, however, has sharp, unprotected edges that will bear directly against the sling, and no edge protection is available. Using the standard's definition of "suitable," how should the safety technician evaluate this sling?

1. AIt cannot be judged until the Secretary of Labor approves this specific sling for the task.
2. BIt is not suitable, because it must suit this lift's conditions, and it does not fit the sharp-edge condition despite adequate capacity.
3. CIt is suitable, because the definition looks at the sling's condition, and a new, undamaged sling passes despite the sharp edges.
4. DIt is suitable, because the definition asks only if rated capacity fits the lift, and capacity here exceeds the load weight.

Question 7

A general contractor runs a highway bridge project with a field trailer at the site entrance. Crews of carpenters and ironworkers report to the trailer each morning and then disperse across the work area, which spans several hundred yards. The safety technician must decide where the OSHA notice required by the Act should be posted. Which location complies?

1. AAt the trailer where employees report each day
2. BAt the area office of OSHA, with employees told where to find it
3. CAt each individual work front, so that every crew sees a separate copy
4. DAt the contractor's central administrative office across town, since that is the legal home of the business

Question 8

A contractor is starting cleanup of a site contaminated with hazardous substances. A new general laborer will be removing contaminated soil. The site supervisor proposes sending the laborer to work immediately alongside experienced workers and arranging classroom training "sometime during the first month." Based on the HAZWOPER training rule, what is the correct response?

1. AAcceptable, because only supervisors must be trained before field activities, while laborers may be trained after starting work.
2. BAcceptable, because training is required only for employees who operate heavy equipment, not for general laborers removing soil.
3. CNot acceptable, because employees may not take part in field activities until trained to the level their job function requires.
4. DAcceptable, because an experienced worker supervising the laborer during the first month can substitute for prior training.