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This quiz is about Process control and Instrumentation. it contains 20 questions

1.

Working principle of radiation pyrometer is based on the

2.

Smoke density of the flue gas going out of the chimney is measured by a

3.

Which of the following temperature measuring instruments need not touch the object whose temperature is being measured?

4.

The temperature of tempering oil baths maintained at 400°C during heat treatment of steel is measured by a/an __________ thermocouple.

5.

Pick out the first order system from among the following.

6.

The closed-loop pole of a stable second order system could be

7.

Which of the following relates the emf. generated in a single homogeneous wire to the temperature difference?

8.

Which of the following is a desirable characteristic of an instrument?

9.

Dilute wine was used as a thermometric liquid initially to develop temperature scale. First emperical temperature scale developed was the __________ scale.

10.

The operation of a rotameter is based on

11.

Response of a system to a sinusoidal input is called __________ response.

12.

Which of the following is the dynamic characteristics of an instrument?

13.

Flapper nozzle is used in a/an __________ controller.

14.

Which of the following is not the triple point of water?

15.

Which of the following is an undesirable dynamic characteristic of an instrument?

16.

Load cells are used for the measurement of

17.

The __________ of a vapor pressure thermometer is a functioning element.

18.

Thermistor, which has high-temperature co-efficient of resistivity, is used as the sensing element in resistance thermometer. It is a/an

19.

Typical specifications for design stipulates the gain margin and phase margin to be respectively

20.

A negative gain margin expressed in decibels means a/an __________ system.


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