PROCESS CONTROL AND INSTRUMENTATION QUIZ

__________ thermometer can not measure sub-zero (< 0° C) temperature,

Vapor pressure

Resistance

Mercury in glass

Bimetallic

TRUE ANSWER : ?
YOUR ANSWER : ?

Stalagmometer is used for the measurement of

Optical activity

Refractive index

Surface tension

Kinematic viscosity

TRUE ANSWER : ?
YOUR ANSWER : ?

The pressure sensing element of elastic type pressure gauge is never made in the form of a

Strip

Bellow

Diaphragm

Bourdon tube

TRUE ANSWER : ?
YOUR ANSWER : ?

The offset introduced by proportional controller with gain Kc in response of first order system can be reduced by

Introducing integral control

Introducing derivative control

None of these

Reducing value of Kc

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the systems having following transfer functions is stable?

1/(s²-2s + 3)

1/(s² + 2s + 2)

1/(s²+ 2)

Exp(-20s)/(s² + 2s-l)

TRUE ANSWER : ?
YOUR ANSWER : ?

Temperature measuring instruments are standardised mostly with __________ points of pure substances.

Melting

Neither A nor B Here

Both A & B Here

Boiling

TRUE ANSWER : ?
YOUR ANSWER : ?

The term analogous to the electrical current in a thermal system is the

Heat content in the system

Temperature difference

Heat flow rate

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

A pyrheliometer is an instrument used for measuring the

Beam radiation

None of these

Bright sunshine period

Diffuse radiation

TRUE ANSWER : ?
YOUR ANSWER : ?

Mercury thermometer can be used to measure the temperature upto __________ °C.

250

100

750

350

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is not classified as a thermo electric pyrometer

Radiation pyrometer

Resistance thermometer

Thermocouple

Optical pyrometer (disappearing filament type)

TRUE ANSWER : ?
YOUR ANSWER : ?

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