Plant Operator Selection System Test Plant Operator Selection System Reading Comprehension 5 — Questions and Answers
Question 1: Read the following passage and answer the question. "Operator rounds must be completed every two hours during each shift. The purpose of rounds is to verify that equipment is operating within specified parameters and to identify developing problems early. Operators must record all readings in the log, including readings that appear normal." Why must operators record readings that appear normal?
- To fill the required number of log entries per shift
- Because only abnormal readings can be identified against a normal baseline
- To create a complete record that makes developing trends visible (Correct answer)
- To prove to supervisors that rounds were actually completed
Correct answer: To create a complete record that makes developing trends visible
Recording all readings — including normal ones — creates a complete record that allows trends and developing problems to become visible over time.
Question 2: Read the following procedure and answer the question. "To isolate a leaking instrument: (1) Close the root valve on the instrument isolation block. (2) Verify the gauge reads zero after closure. (3) Tag the instrument with an out-of-service tag. (4) Notify the control room that the instrument is unavailable. (5) Submit a work order for repair." According to the procedure, when should the control room be notified?
- Before closing the root valve
- After closing the root valve but before tagging the instrument
- After tagging the instrument out of service (Correct answer)
- Only after the repair work order is submitted
Correct answer: After tagging the instrument out of service
Step 4 (notify control room) comes after Step 3 (tag instrument out of service) in the procedure sequence.
Question 3: Read the following passage and answer the question. "Positive displacement pumps, unlike centrifugal pumps, should never be operated against a closed discharge valve. Because they move a fixed volume of fluid per revolution, closing the discharge valve while the pump runs builds pressure rapidly and can rupture piping or damage the pump itself." What distinguishes positive displacement pumps from centrifugal pumps in this context?
- Positive displacement pumps are always more energy efficient
- Positive displacement pumps move a fixed volume per revolution regardless of back-pressure (Correct answer)
- Centrifugal pumps cannot operate with a partially open discharge valve
- Centrifugal pumps move more fluid per revolution than positive displacement pumps
Correct answer: Positive displacement pumps move a fixed volume per revolution regardless of back-pressure
The passage explains that positive displacement pumps 'move a fixed volume of fluid per revolution,' which causes pressure to build rapidly if the discharge is blocked.
Question 4: Read the following passage and answer the question. "The plant's emergency response plan designates three muster points: Point A at the north parking lot, Point B at the south gate, and Point C at the east maintenance building. In the event of an evacuation alarm, all personnel must proceed to the muster point designated for their work area without using elevators." Which of the following is specifically prohibited during an evacuation?
- Proceeding to a muster point before the alarm sounds
- Using elevators during evacuation (Correct answer)
- Gathering at Point C for north parking lot personnel
- Contacting the control room during evacuation
Correct answer: Using elevators during evacuation
The passage explicitly states personnel must evacuate 'without using elevators,' making elevator use specifically prohibited.
Question 5: Read the following passage and answer the question. "Steam traps remove condensate and non-condensable gases from steam lines without allowing live steam to escape. A failed-open trap passes live steam continuously, wasting energy. A failed-closed trap allows condensate to accumulate, which can cause water hammer and damage to steam equipment." What is the consequence of a steam trap that has failed in the closed position?
- Continuous live steam loss and energy waste
- Condensate accumulation leading to water hammer (Correct answer)
- Reduced pressure in the steam distribution header
- Increased efficiency due to less steam loss
Correct answer: Condensate accumulation leading to water hammer
The passage states a failed-closed trap allows condensate to accumulate, 'which can cause water hammer and damage to steam equipment.'
Question 6: Read the following passage and answer the question. "Material Safety Data Sheets (MSDS), now called Safety Data Sheets (SDS), must be accessible to all employees who work with hazardous chemicals. The SDS contains critical information including the chemical's properties, health hazards, protective equipment requirements, and emergency response procedures." According to the passage, who must have access to Safety Data Sheets?
- Only supervisors and safety officers
- Only emergency response personnel
- All employees who work with hazardous chemicals (Correct answer)
- Only employees who have completed chemical safety training
Correct answer: All employees who work with hazardous chemicals
The passage states SDS must be accessible to 'all employees who work with hazardous chemicals,' without any other qualification.
Question 7: Read the following passage and answer the question. "A confined space entry permit must be issued before any worker enters a permit-required confined space. The permit must specify the hazards present, required protective equipment, atmospheric testing results, and the names of entrants and attendants. The permit is only valid for the duration of the specific work task listed." How long is a confined space entry permit valid?
- 24 hours from the time it is issued
- For the entire work shift during which it is issued
- For the duration of the specific work task listed on the permit (Correct answer)
- Until the atmospheric testing results expire
Correct answer: For the duration of the specific work task listed on the permit
The passage states the permit 'is only valid for the duration of the specific work task listed,' not for a fixed time period.
Plant Operator Selection System Test Plant Operator Selection System Reading Comprehension 5
Read the following passage and answer the question.
"Operator rounds must be completed every two hours during each shift.
The purpose of rounds is to verify that equipment is operating within specified parameters and to identify developing problems early.
Operators must record all readings in the log, including readings that appear normal."
Why must operators record readings that appear normal?