Thermocouples and Thermistors May 11, 2024 by Brian Klein /22 0 votes, 0 avg 0 Thermocouples and Thermistors 1 / 22 What type of thermometers are commonly used in operations? Bimetallic-stemmed thermometers Thermocouples and thermistors Neither Both Wrong! Thats right! 2 / 22 What are Penetration Probes useful for? Checking the internal temperature of food Checking the temperature of thin food Neither Both Wrong! Thats right! Penetration Probes are useful for checking the internal temperature of thin food like hamburger patties or fish fillets. 3 / 22 Thermocouples and thermistors are similar types of thermometers that are commonly used in food service. Whats the difference between the two? Their interchangeable probes The technology that makes them work Neither Both Wrong! Thats right! 4 / 22 Why don’t you need to insert thermocouple and thermistor thermometers as far into the food as bimetallic-stemmed thermometers need to be? The sensing area on a bimetallic-stemmed thermometer is between the tip of the stem and the dimple The sensing area on thermocouple and thermistor thermometers is on the tip of their probe Neither Both Wrong! Thats right! The sensing area on thermocouple and thermistor thermometers is on the tip of their probe. But the sensing area on a bimetallic-stemmed thermometer is longer and extends from the tip of the stem to the dimple. 5 / 22 What are some features of a thermocouple and thermistor thermometer? Come in several styles and sizes Comes with interchangeable probes Measures temperature through a metal probe Can measure different types of food and equipment Good for checking the temperature of both thick and thin food All are correct Wrong! Thats right! 6 / 22 Which statements are true about thermocouple and thermistor thermometers? Measures temperature through a sensor at the tip of the probe Come in several styles and sizes with different types of probes Common in restaurant and food service operations Good for checking thick and thin food Temperatures are displayed digitally Two similar thermometers that use different technology All are correct Wrong! Thats right! 7 / 22 What are these? • Air probe• Surface probe• Immersion probe• Penetration probe Interchangeable probes for a thermocouple or thermistor thermometer Thermometer probes for food, liquids, surfaces, and air Neither Both Wrong! Thats right! 8 / 22 Through which of its parts do thermocouples and thermistors measure temperatures? A metal probe An interchangeable probe Neither Both Wrong! Thats right! 9 / 22 What kind of food is a thermocouple and a thermistor good for checking the temperature? Thick food Thin food Neither Both Wrong! Thats right! 10 / 22 Which probe should be attached to a thermocouple or thermistor thermometer when checking the temperature of flat cooking equipment, like a grill? Immersion probe Surface probe Neither Both Wrong! Thats right! 11 / 22 Which probe should be attached to a thermocouple or thermistor thermometer when checking the internal temperature of food? Penetration probe Immersion probe Neither Both Wrong! Thats right! 12 / 22 When checking the temperature inside a cooler or oven, which probe should be attached to a thermocouple or thermistor thermometer? Air probe Surface probe Neither Both Wrong! Thats right! 13 / 22 These are the most common types of what, used in foodservice? • Thermistors• Thermocouples• Bimetallic-stemmed Dishwashers Food thermometers Neither Both Wrong! Thats right! 14 / 22 What are surface probes used for? Pans Griddles Flat cooking equipment To check the temperature of a surface All are correct Wrong! Thats right! Surface probes can only measure surface temperatures. They can NOT measure internal temperatures. 15 / 22 What kind of food are thermocouple and thermistor thermometers suitable for checking the temperature of? Thick food Thin food Neither Both Wrong! Thats right! 16 / 22 Which of these statements are true about thermocouple and thermistor thermometers? They measure temperature through a sensor on the tip of their probe They come in several styles and sizes with different types of probes They are commonly used in food service operations They are good for checking the temperature of both thick and thin food They show temperature readings on a digital display They are similar thermometers that use different technology to work All are correct Wrong! Thats right! 17 / 22 How are the temperature readings shown on a thermocouple or thermistor thermometer? A digital display On the dial Neither Both Wrong! Thats right! 18 / 22 Which part of a thermocouple and thermistor thermometer is sensative to temperature? Only on the tip of the probe Between the tip and the dimple Neither Both Wrong! Thats right! A bimetallic-stemmed thermometer is NOT good for checking the temperature of thin food (fish filets, burger patties) because it must be inserted too far into the food. The entire sensing area, between the tip of its stem and the dimple, must be inserted into the food. Thermocouples and thermistors are better for checking the temperature of thin food because they don’t need to be inserted very far into the food. Only the tip of their probe is sensitive to temperature. They can be used for both thick and thin food. 19 / 22 Which statement is true about a surface probe? Use these to check the surface temperature of flat cooking equipment like a griddle or grill Press the short flat probe directly to a surface and its temperature is displayed digitally Neither Both Wrong! Thats right! This type of thermometer only measures surface temperatures and can NOT be used to check the internal temperatures of food. 20 / 22 Which probe should be attached to a thermocouple or thermistor thermometer when checking the temperature of liquids like soups, sauces, and frying oil? Immersion probe Penetration probe Neither Both Wrong! Thats right! 21 / 22 Which probe should be attached to a thermocouple or thermistor thermometer when checking the temperature of a thin food, like hamburger patties or fish fillets? Surface probe Penetration probe Neither Both Wrong! Thats right! 22 / 22 What kind of thermometers have interchangeable probes? Thermistors Thermocouples Neither Both Wrong! Thats right! Your score is LinkedIn Facebook Twitter Restart quiz Try another practice test
