CFESA Food Equipment Maintenance 3

Question 1

What causes cavitation in a commercial dishwasher pump?

Accepted Answer

Insufficient water supply, air entrainment, or clogged intake strainer

Answer

Excess water pressure

Answer

Worn wash arm bearings

Answer

Hot water above 180°F

Question 2

A commercial ice cream machine produces soft, runny product. The most probable cause is:

Accepted Answer

Refrigeration system underperforming or mix overrun too high

Answer

Mix temperature too cold

Answer

Beater motor running too fast

Answer

Excess glycol in the freezing cylinder

Question 3

How should a commercial food slicer blade be cleaned and sanitized according to food safety standards?

Accepted Answer

Disassemble, wash, rinse, and sanitize the blade and all food contact surfaces per NSF guidelines

Answer

Wipe with a dry cloth after each use

Answer

Spray with sanitizer without disassembly

Answer

Clean only at end of day

Question 4

What is the primary function of a metering pump on a commercial dishwasher?

Accepted Answer

Automatically dispense precise amounts of detergent or sanitizer into the wash or rinse water

Answer

Control water flow to the spray arms

Answer

Meter steam into the wash tank

Answer

Regulate final rinse pressure

Question 5

A commercial convection oven fan runs backward (opposite direction). The most likely cause is:

Accepted Answer

Two motor leads have been swapped, reversing the phase for a three-phase motor

Answer

Defective thermostat

Answer

Worn fan blade

Answer

Failed capacitor on a single-phase motor

Question 6

When performing PM on a commercial tilting skillet (braising pan), a technician should lubricate the:

Accepted Answer

Tilt mechanism pivot points and gear assembly per manufacturer specifications

Answer

Heating elements

Answer

Exterior stainless steel surface

Answer

Thermostat bulb