Chapter 8 THERMOCOUPLE MCQs 13 min Score: 0 Attempted: 0/13 Subscribe 1. . A junction / joint of two dissimilar metal is called _______. (A) Reference point (B) Solder joint (C) Thermocouple (D) PN junctionShow All Answers 2. . The operation of a Thermocouple is based on _______. (A) Seebeck effect (B) Peltier effect (C) Thomson effect (D) Faraday's lawsShow All Answers 3. . Which of the following is an active transducer? (A) Strain gauge (B) Thermistor (C) Thermocouple (D) Resistance thermometerShow All Answers 4. . What happens when heat is applied to the joined ends of wires of thermocouple? (A) The wires contract (B) the wires start to rotate (C) Small voltage is generated (D) the wires separateShow All Answers 5. . ________ converts change in temperature of its metallic junction to electrical voltage. (A) Thermocouple (B) Actuator (C) Thermistor (D) ElectrometerShow All Answers 6. . Identify the thermocouple type with the highest temperature limit from those listed here: (A) K type (B) S type (C) J type (D) T typeShow All Answers 7. . The negative lead of a thermocouple is always colored: (A) Blue (B) Yellow (C) Red (D) WhiteShow All Answers 8. . When the reference junction is the same temperature as the measurement junction in a thermocouple circuit, the output voltage is ________. (A) Low (B) High (C) Intermediate (D) ZeroShow All Answers 9. . Thermocouples are used for the measurement of (A) Density (B) Temperature (C) Pressure (D) FlowShow All Answers 10. . The series & parallel groups of thermocouples are called ________. (A) Constantan (B) Thermopiles (C) Thermodynamics (D) ThermometerShow All Answers 11. . Thermocouple extension wire may be readily distinguished from regular thermocouple-grade wire by: (A) Different metal types (B) Outer sheath color (C) Thickness (D) Special markings on the wire’s insulationShow All Answers 12. . A type J thermocouple is made of the following metals: (A) Iron and Constantan (B) Aluminum and Tungsten (C) Chromel and Alumel (D) Copper and ConstantanShow All Answers 13. . Thermopile is used for the measurement of ___________________? (A) Current (B) E.M.F. (C) Flow rate (D) TemperatureShow All Answers