Related Mcqs:

1. Zirconia probe is used for the continuous measurement of ______________ flue gases going out of the furnace?

   A. Oxygen in
   B. Carbon dioxide in
   C. Carbon monoxide in
   D. Temperature of

2. Hot wire anemometer is used for the measurement of___________________?

   A. Flow rates of fluids
   B. Flow rates of granular solids
   C. Very high temperature
   D. Thermal conductivity of gases

3. The unit of ‘time constant’ of a system is the same as that of___________________?

   A. Velocity
   B. Time
   C. (Time)-1
   D. None of these

4. A photo electric device in which the resistance of the metal is directly proportional to the light striking on it, is known as photo-conductive cell. Photoelectric transducers are used for the measurement of those parameters, which can be used to produce variation in_______________?

   A. Light intensity
   B. Current
   C. Flux density
   D. Voltage

5. Continuous shell temperature measurement in a liquid-liquid heat exchanger is done by a __________________?

   A. Thermocouple
   B. Resistance thermometer
   C. Mercury in glass thermometer
   D. Vapor pressure thermometer

6. Thermal conductivity measurement com-prises the working principle of a_________________?

   A. CO2 analyser
   B. Polarimeter
   C. Spectrometer
   D. Chromatograph

7. Magnetic flowmeters are generally not used for the velocity/flow measurement of hydrocarbons due to their ?

   A. Low thermal conductivity
   B. Low electrical conductivity
   C. High viscosity index
   D. Low flash point

8. Thermal wells are used in the temperature measurement to____________________?

   A. Guard against corrosive and oxidising action on thermocouple materials
   B. Reduce measuring lag
   C. Increase the fidelity
   D. Increase the sensitivity

9. Mercury thermometer is commonly used for low temperature measurement. The freezing point and boiling point of mercury are respectively _____________ °C?

   A. – 39 and 350
   B. – 51 and 439
   C. – 79 and 395
   D. – 10 and 425

10. Which of the following filled system expansion thermometers has the lowest positive temperature measurement capability ?

    A. Mercury in glass thermometer
    B. Alcohol in glass thermometer
    C. Fused metal (Na or K) in steel thermometer
    D. Nitrogen in steel thermometer