Pick out the wrong statement ?

Related Mcqs:

1. Pick out the wrong statement ?

   A. Proportional controller is normally used for level control in industrial applications
   B. CSTR can be considered as a distributed parameter system
   C. Distributed parameter approach gives partial differential equation
   D. Non-linear behaviour is exemplified by an on-off controller

2. Pick out the wrong statement?

   A. There is no transfer lag for a single first order system
   B. Stirred tank with a water jacket exemplifies an interacting system
   C. Transfer lag is a characteristic of all higher order systems (other than first order systems)
   D. Transfer lag decreases as the number of stages decreases

3. Pick out the one which is a first order instrument ?

   A. Mercury in glass thermometer (without any covering or air gap)
   B. Bare metallic thermometer
   C. Bare vapor pressure thermometer
   D. All A., B. and C.

4. Pick out the first order system from among the following ?

   A. Damped vibrator
   B. Mercury in glass thermometer kept in boiling water
   C. Interacting system of two tanks in series
   D. Non-interacting system of two tanks in series

5. Pick out the most suitable instrument for measuring temperature in the range of-40 to 425°C ?

   A. Mercury thermometer
   B. Bimetallic thermometer
   C. Radiation pyrometer
   D. None of these

6. Select the correct statement from the following?

   A. The frequency response of a pure capacity process is unbounded
   B. The phase lag of a pure time delay system decreases with increasing frequency
   C. The amplitude ratio of a pure capacity process is inversely proportional to frequency
   D. The amplitude ratio of a pure time delay system increases with frequency

7. Radiation thermometer cannot measure the temperature ___________________?

   A. Inside a pressure vessel
   B. Of an object without coming in contact with it
   C. Of liquid oxygen
   D. Of moving objects at high temperature

8. Emf generated in a thermocouple depends on the temperature ___________________?

   A. Of cold junction only
   B. Of hot junction only
   C. Difference between hot and cold junctions
   D. Difference between cold junction and atmospheric temperature

9. Reference points i.e., ice point and steam point in Reaumer temperature scale are respectively_________________?

   A. – 273° & 80°
   B. 0° & 80°
   C. 32° & 460°
   D. 32° & 80°

10. Working principle of mercury in glass thermometer is__________________?

    A. Volumetric expansion
    B. Pressure rise with temperature
    C. Linear expansion
    D. None of these