ServSafe ServSafe Facility Design & Equipment Maintenance 2 — Questions and Answers
Question 1: How often must a commercial dishwasher be cleaned according to ServSafe guidelines?
- Once per week during slow periods
- As often as needed to prevent buildup and at least daily (Correct answer)
- Only when visible soil or residue is present
- After every 100 wash cycles
Correct answer: As often as needed to prevent buildup and at least daily
Dishwashers must be cleaned as needed and at least daily to prevent soil buildup, scale, and potential contamination of clean dishes.
Question 2: What is the minimum internal temperature required for a high-temperature dishwasher's final sanitizing rinse?
- 140°F (60°C)
- 160°F (71°C)
- 180°F (82°C) (Correct answer)
- 212°F (100°C)
Correct answer: 180°F (82°C)
High-temperature dishwashers must reach a final rinse temperature of at least 180°F (82°C) on dish surfaces to achieve proper sanitization.
Question 3: A walk-in freezer door seal is cracked and no longer forms a tight seal. The correct action is to:
- Continue operating and monitor temperatures more frequently
- Repair or replace the seal immediately (Correct answer)
- Reduce the thermostat setting to compensate
- Prop the door open slightly to equalize pressure
Correct answer: Repair or replace the seal immediately
A damaged door seal compromises temperature control and energy efficiency, requiring immediate repair or replacement to maintain safe storage conditions.
Question 4: What is the purpose of having a three-compartment sink in a food service operation?
- To wash vegetables, meats, and dairy separately
- To wash, rinse, and sanitize equipment and utensils manually (Correct answer)
- To provide separate handwashing stations for staff
- To prepare raw, cooked, and ready-to-eat foods simultaneously
Correct answer: To wash, rinse, and sanitize equipment and utensils manually
A three-compartment sink provides dedicated compartments for washing, rinsing, and sanitizing equipment and utensils when a dishwasher is not used.
Question 5: Ventilation hoods over cooking equipment must be maintained to:
- Reduce humidity only during peak cooking hours
- Remove grease, heat, and odors and prevent grease buildup in the ductwork (Correct answer)
- Provide additional lighting over the cook line
- Circulate warm air back into the kitchen during cold months
Correct answer: Remove grease, heat, and odors and prevent grease buildup in the ductwork
Ventilation hoods remove grease-laden vapors and heat from the cooking area and must be cleaned regularly to prevent grease fires and code violations.
Question 6: Which type of plumbing connection is required to prevent contaminated water from back-flowing into a potable water supply?
- Pressure valve
- Air gap (Correct answer)
- Shut-off valve
- Water softener
Correct answer: Air gap
An air gap — a physical space between the water supply outlet and a potential source of contamination — is the most reliable method to prevent backflow.
ServSafe ServSafe Facility Design & Equipment Maintenance 2
How often must a commercial dishwasher be cleaned according to ServSafe guidelines?