Question

1. what is the calibration nut on a bimetallic stemmed thermometer used for?

a. keeping it accurate
b. marking its sensing area
c. measuring air temperature
d. measuring temperatures through glass

1. when calibrating a thermometer by placing it in boiling water, what temperature should it be adjusted to if your location is at sea level?

a. 110°f (43°c)
b. 165°f (74°c)
c. 180°f (82°c)
d. 212°f (100°c)

1. when checking the internal temperature of food, where should the thermometer be inserted?

a. in the thinnest part of the food
b. in the thickest part of the food
c. on the bottom of the food
d. on the top of the food

1. thermometers that measure the temperature of food must be accurate to

a. +/- 1°f or +/- 0°c.
b. +/- 2°f or +/- 1°c.
c. +/- 3°f or +/- 2°c.
d. +/- 4°f or +/- 3°c.

1. thermometers should be calibrated

a. before use.
b. after use
c. during use.
d. before and after use.

1. how long after inserting a bimetallic stemmed thermometer in food must you wait for the reading to steady?

a. 5 seconds
b. 10 seconds
c. 15 seconds
d. 30 seconds

Explanation:

• Question 20: The calibration nut on a bimetallic stemmed thermometer is used to keep it accurate.
• Question 21: At sea level, boiling water has a temperature of \(212^{\circ}F(100^{\circ}C)\) (standard atmospheric pressure boiling point).
• Question 22: To check the internal temperature of food accurately, the thermometer should be inserted in the thickest part of the food as heat distribution is more representative there.
• Question 23: Thermometers that measure food temperature must be accurate to \(+/- 2^{\circ}F\) or \(+/- 1^{\circ}C\) to ensure food safety and proper cooking/holding temperatures.
• Question 24: Thermometers should be calibrated before use to ensure accurate readings from the start.
• Question 25: After inserting a bimetallic stemmed thermometer in food, you must wait 15 seconds for the reading to steady.

Answer:

1. a. Keeping it accurate
2. d. \(212^{\circ}F(100^{\circ}C)\)
3. b. In the thickest part of the food
4. b. \(+/- 2^{\circ}F\) or \(+/- 1^{\circ}C\)
5. a. before use
6. c. 15 seconds