Level II sample questions
5 free sample questions on plant operations for the Washington Level II wastewater treatment operator exam. Try each one, then open the answer to read the explanation.
During an annual lockout/tagout inspection, the inspector finds an employee using a local stop button instead of the main disconnect. What should be done?
Answer: B. Correct the problem and retrain the employee.
A stop button does not isolate the equipment from its energy source. The problem must be corrected, and the employee must be retrained in the proper lockout/tagout procedure.
A plant keeps its safety data sheets in an electronic system. During a network outage, employees cannot open an SDS, and no backup is available. Which requirement is not being met?
Answer: A. SDSs must be available to employees during the work shift.
Electronic SDS systems are allowed, but employees must still be able to get the information during their shift. A network outage without backup access fails that requirement.
An unplanned bypass causes a plant to exceed an NPDES permit limit. Under the general federal requirement, when must the event be reported?
Answer: D. Report it orally within 24 hours, then in writing within 5 days.
The permittee must report the event orally within 24 hours and normally provide a written report within 5 days. The permitting authority may waive the written report in an individual case.
A plant security review identifies several possible improvements. How should the plant decide which ones to complete first?
Answer: B. Address the highest risks to critical operations first.
Security work should focus first on the risks that could cause the greatest harm to important plant operations. Cost can be considered, but it should not be the only factor.
A contractor will enter a permit-required confined space while plant employees do work that could affect the entry. What must the plant do?
Answer: A. Share the hazards and coordinate the work.
The plant must tell the contractor about the space hazards and entry precautions and coordinate the work when plant and contractor activities may affect one another.
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Operator Master has 35 Level II plant operations questions, free, with an explanation after every answer.
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