CPM Industrial Safety and Compliance 2

Question 1

Three mechanics are servicing the same conveyor under a group lockout. Per OSHA 1910.147, what is required of each mechanic?

Accepted Answer

Each authorized employee affixes a personal lock or tag to the group device

Answer

Group lockout requires each authorized employee to affix a personal lockout or tagout device to the group mechanism.

Question 2

After isolating the electric motor on a hydraulic press, what must be done before work begins?

Accepted Answer

Relieve, disconnect, or restrain stored energy such as charged accumulators

Answer

OSHA requires that stored or residual energy, such as hydraulic accumulator pressure, be relieved, disconnected, restrained, or otherwise made safe.

Question 3

After applying locks to a pump's disconnect, what is the correct next step before beginning maintenance?

Accepted Answer

Verify isolation by attempting to start the equipment, then return controls to off

Answer

Verification (try-out) confirms the machine is isolated and de-energized before work begins.

Question 4

How often must the employer conduct periodic inspections of energy control procedures under 1910.147?

Accepted Answer

At least annually

Answer

Periodic inspections of each energy control procedure must be performed at least annually by an authorized employee other than the one using it.

Question 5

A lockout must continue through a shift change. What does OSHA require?

Accepted Answer

Specific procedures for the orderly transfer of lockout protection between off-going and oncoming employees

Answer

Shift or personnel changes require specific procedures that ensure continuous lockout protection during the transfer.

CPM - Certified Plant Mechanic Practice Test