Related Mcqs:

1. Normal mercury thermometer can be used to measure a temperature of about 300°C. However, its maximum temperature measurement range can be increased upto about 500°C by__________________?

   A. Filling nitrogen under pressure in the stem
   B. Increasing the diameter of the tube
   C. Using steel tube in place of glass tube
   D. Accounting for the tube expansion

2. Flow rate measurement of hostile acids and alkalis can be most suitably done by a/an ________________?

   A. Venturimeter
   B. Orificemeter
   C. Magnetic flow meter
   D. Hot wire anemometer

3. Platinum resistance thermometer is the international standard for temperature measurement between __________________?

   A. Triple point of hydrogen and freezing point of antimony
   B. 13.81°K to 903.9°K
   C. Both A. and B.
   D. Neither A. nor B.

4. Helium gas constant volume thermometer is suitable for the measurement of a temperature of ______________ °C?

   A. < 100
   B. < 0
   C. > 0
   D. > 800

5. Measurement of sub-zero Celsius temperature in industry is done most commonly by __________________?

   A. Thermocouples
   B. Resistance thermometers
   C. Gas thermometers
   D. Bi-metallic thermometers

6. Zirconia probe is used for the measurement of___________________?

   A. Humidity of air
   B. % CO2 in flue gas
   C. % O2 in flue gas
   D. Speed of a submarine

7. Load cells are used for the measurement of __________________?

   A. Stress
   B. Weight
   C. Strain
   D. Velocity

8. Which of the following measurements can be made by the measurement of emf ?

   A. pH value
   B. Degree of hydrolysis
   C. Composition of complex ions
   D. All A., B. & C.

9. Accurate temperature measurement performance of a radiation pyrometer cannot be affected, if the ?

   A. Enhancement or attenuation of radiation occurs in the sighting path
   B. Object and surrounding are at almost the same temperature
   C. Object has varying emissivity
   D. Object is transparent

10. Water is flowing through a series of four tanks and getting heated as shown in figure. It is desired to design a cascade control scheme for controlling the temperature of water leaving the tank 4 as there is a disturbance in the temperature of a second stream entering the tank 2. Select the best place to take the secondary measurement for the second loop?

    A. Tank 1
    B. Tank 2
    C. Tank 3
    D. Tank 4