Plant Operator Selection System Test POSS: Reading Comprehension 3

Question 1

Passage: 'The plant safety manual states that all near-miss incidents must be reported within 24 hours of occurrence. Reports submitted after 24 hours are considered late and require a written explanation from the employee's supervisor. Unreported near-miss incidents are subject to disciplinary action.' What happens if a near-miss report is submitted after 24 hours?

Accepted Answer

A written explanation from the supervisor is required

Answer

The passage states that late reports require a written explanation from the employee's supervisor.

Question 2

Passage: 'Turbine start-up requires a pre-start inspection checklist to be completed and signed by two qualified operators. The checklist must then be submitted to the control room before the start-up command is issued. Skipping any checklist item invalidates the entire checklist.' Who must sign the pre-start inspection checklist?

Accepted Answer

Two qualified operators

Answer

The passage specifies that the checklist must be signed by two qualified operators before submission.

Question 3

Passage: 'Oxygen levels in confined spaces must be tested before entry and every 30 minutes thereafter. Oxygen levels below 19.5% or above 23.5% are considered hazardous and require immediate evacuation. An oxygen level of exactly 19.5% is considered acceptable for entry.' An oxygen reading of 19.2% means the space is:

Accepted Answer

Hazardous and requires immediate evacuation

Answer

The passage states levels below 19.5% are hazardous and require immediate evacuation, and 19.2% is below that threshold.

Question 4

Passage: 'Permit-to-work forms have three sections. Section 1 identifies the work to be performed. Section 2 lists the hazards and required controls. Section 3 is signed by the area authority to authorize the work. A permit is not valid until all three sections are completed.' Which section authorizes the work to begin?

Accepted Answer

Section 3, which is signed by the area authority

Answer

Section 3 is signed by the area authority to authorize the work, making it the authorization step.

Question 5

Passage: 'The boiler feed pump must not be started if any of the following conditions exist: suction pressure below 10 PSI, discharge valve closed, or bearing temperature above 180°F. All three conditions must be cleared before start-up is attempted.' If the suction pressure is 12 PSI, the discharge valve is open, but bearing temperature is 190°F, the pump should:

Accepted Answer

Not be started because one condition has not been cleared

Answer

The passage states all three conditions must be cleared, and a bearing temperature of 190°F exceeds the 180°F limit, so the pump must not start.

Plant Operator Selection System Test Practice Test

Plant Operator Selection System Test Practice Test

Plant Operator Selection System Test POSS: Reading Comprehension 3