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Maintenance Test Question and Answers Flashcards

6 cards from real Walmart practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 Maintenance Test Question and Answers flashcards as text

  1. A compressor in a refrigeration system short-cycles repeatedly. What is the most common cause?

    Answer: Low refrigerant charge or a faulty pressure switch

    Short-cycling is commonly caused by low refrigerant triggering the low-pressure cutout, or a faulty pressure switch with incorrect settings.

  2. What is the minimum clearance required around an electrical panel per the National Electrical Code?

    Answer: 36 inches in front, 30 inches wide, clear to ceiling or 6.5 feet high

    NEC requires 36 inches of clear working space in front of panels, 30 inches wide, and clear height to the ceiling or 6.5 feet minimum.

  3. A toilet in the employee restroom runs continuously after flushing. Which component is most likely at fault?

    Answer: The flapper valve or fill valve assembly

    Continuous running typically indicates a worn flapper that does not seal or a fill valve that fails to shut off at the correct water level.

  4. What safety precaution must be taken before entering a confined space such as a grease trap or mechanical pit?

    Answer: Complete a confined space permit, test atmosphere, have a rescue plan and attendant

    OSHA's confined space standard requires atmospheric testing, entry permits, trained attendants, and rescue plans before entry.

  5. The ice machine is producing ice that is thin, cloudy, or incomplete. What is the most likely cause?

    Answer: The water supply is restricted or the water filter needs replacement

    Restricted water flow or poor water quality from a clogged filter produces thin, incomplete, or cloudy ice.

  6. What does a ground fault circuit interrupter (GFCI) protect against?

    Answer: Electrical shock from current flowing through an unintended path to ground

    GFCI devices detect current imbalances between hot and neutral conductors, indicating current is flowing through an unintended ground path such as a person.