Process Control and Instrumentation MCQs

Question 1

In a shell and tube heat exchanger, the inlet temperature of heating/cooling fluid is the __________ variable.

Accepted Answer

Load

Answer

Manipulated

Answer

Controlled

Answer

None of these

Question 2

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

Accepted Answer

All of the above

Answer

PH value

Answer

Degree of hydrolysis

Answer

Composition of complex ions

Question 3

Thermocouple is suitable for measuring

Accepted Answer

Both high and low temperatures

Answer

Liquid temperatures only

Answer

Very high temperatures only

Answer

Very low temperatures only

Question 4

Liquid column manometers are used for measuring the pressure __________ kgf/cm 2 .

Accepted Answer

< 3 (gage)

Answer

> 2 (gage)

Answer

< 10 (gage)

Answer

< atmospheric

Question 5

Polarograph is meant for the analysis of

Accepted Answer

Solids

Answer

Gaseous mixture

Answer

Miscible liquids

Answer

Isotopes

Question 6

Which of the following thermometers is not suitable for distant reading upto 60 metres?

Accepted Answer

Mercury in glass thermometer

Answer

Vapor pressure thermometer

Answer

Constant volume gas thermometer

Answer

Resistance thermometer

Question 7

The root locus method, a pole of a transfer function G(s) is the value of s for which G(s) approaches

Accepted Answer

∞

Answer

-1

Answer

0

Answer

1

Question 8

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

Accepted Answer

32°R

Answer

273°K

Answer

492°R

Answer

32°F

Question 9

Bourdon tube is never made of

Accepted Answer

Cast iron

Answer

Phosphor bronze

Answer

Monel metal

Answer

Stainless steel