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INDIAN INSTITUTE OF TECHNOLOGY (I.I.T.) (BHU) BANARAS HINDU UNIVERSITY, Varanasi – 221005, (U.P.), India Sensors and Actuators (MCR 532) Quiz 2

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CLASS BRANCH TIME

: B. Tech./I.D.D./M.Tech./Ph.D. : CER/PHE/MET/CIV/APM/MEC/SMST/MIN/BME/EEE : 10mins

SEMESTER SESSION FULL MARKS

: 7th /9th /1st /1st : 2020-21 : 05

All questions carry “01” mark each 1. Identify the thermocouple type with the highest temperature limit from those listed here: (A) Type J

(B) Type K

(C) Type S

(D) Type T

2. Reference junction compensation is necessary in thermocouple-based temperature instruments because: (A) Copper extension wire has a tendency to corrode (B) Thermocouples are inherently nonlinear (C) The reference junction generates a temperature-dependent voltage (D) The junction’s electrical resistance varies with temperature

3. A type J thermocouple is made of the following metals: (A) Aluminum and Tungsten

(B) Iron and Constantan

(C) Platinum and Platinum/Rhodium alloy

(D) Copper and Constantan

4. What is the smallest change which a sensor can detect termed? The smallest change which a sensor can detect is termed: (A) Accuracy

(B) Precision

(C) Resolution

(D) Scale

5. A ________ is thermally sensitive resistor that exhibits a large change in resistance. (A) Thermistor

(B) Resistance Thermometer

(C) Thermo couple

(D) Semiconductor based sensor

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