CFESA Food Equipment Maintenance 4

Question 1

When performing a preventive maintenance inspection on a commercial steamer, which component should be de-limed most frequently in areas with hard water?

Accepted Answer

Steam generator or boiler tank

Answer

Hard water causes calcium and mineral deposits to accumulate rapidly in steam generators, reducing efficiency and potentially damaging heating elements.

Question 2

A walk-in cooler evaporator coil is heavily frosted over even though the defrost cycle runs normally. What is the most likely cause?

Accepted Answer

Door gasket failure allowing warm moist air infiltration

Answer

A damaged door gasket allows warm, humid ambient air into the cooler, which freezes on the evaporator coil faster than defrost cycles can remove it.

Question 3

During routine maintenance on a gas-fired commercial range, what is the correct procedure for checking burner orifice condition?

Accepted Answer

Inspect visually and clean with compressed air; replace if deformed

Answer

Orifice openings must never be reamed or wire-brushed because any enlargement alters the gas-to-air ratio; cleaning with compressed air and visual inspection is the correct approach.

Question 4

A commercial dishwasher's final rinse temperature consistently reads 160°F instead of the required 180°F. After confirming the booster heater element is functional, what should be checked next?

Accepted Answer

Incoming water pressure and flow rate to the booster

Answer

Insufficient water flow through the booster heater means the water does not spend enough time in contact with the heating element to reach 180°F.

Question 5

When lubricating the door hinges and rollers of a commercial convection oven, which lubricant type is appropriate?

Accepted Answer

Food-grade high-temperature grease (NSF H1)

Answer

NSF H1 food-grade lubricants are required for components where incidental food contact is possible, and must be rated for the high temperatures encountered near oven doors.

CFESA - Commercial Food Equipment Service Association Practice Test

CFESA - Commercial Food Equipment Service Association Practice Test

CFESA Food Equipment Maintenance 4