Chapter 13 BI-METALLIC THERMOMETER MCQs 10 min Score: 0 Attempted: 0/10 Subscribe 1. . The bimetallic thermometer uses the bimetallic strip which converts the temperature into the____________. (A) Pressure (B) mechanical displacement (C) Stress (D) HeightShow All Answers 2. . Working principle of bimetallic thermometers is difference in linear coefficient of thermal expansion of two strips of different metals welded together. Which of the following has the maximum thermal co-efficient of linear expansion? (A) Nickel (B) Brass (C) Chromel (D) ConstantanShow All Answers 3. . How the size of an object changes with a change in temperature is called____________. (A) Specific Expansion (B) Specific Change (C) Coefficient of thermal expansion (D) Expansion of sizeShow All Answers 4. . A mechanical element used to sense temperature & change it into a mechanical displacement is known as a____________. (A) Bi-metallic strip (B) Thermocouple (C) Pressure spring (D) Physical elementShow All Answers 5. . The bimetallic strip of the thermometer is constructed with metals____________. (A) Effective (B) Different (C) Thin (D) SameShow All Answers 6. . The deflection of the free end of the bimetallic strips in a bimetallic thermometer with temperature is nearly__________________? (A) Linear (B) Nonlinear (C) Parabolic (D) HyperbolicShow All Answers 7. . Every metal has a ______________ temperature coefficient. (A) Low (B) High (C) Different (D) SameShow All Answers 8. . The strip bends towards the metal which has a _______ temperature coefficient (A) Low (B) High (C) Different (D) ConstantShow All Answers 9. . Which one of the following bimetallic thermometers is used for industrial application? (A) Spiral (B) Helical (C) Horizontal (D) VerticalShow All Answers 10. . The bimetallic thermometer is used in____________. (A) Ovens (B) Air conditioners (C) Hot wires (D) All theseShow All Answers
