1000+ Process Control Instrumentation MCQ Questions and Answers - 1
Question: 2
Polarisation of light forms the working principle of a
(A) chromatograph
(B) spectrometer
(C) polarograph
(D) polarimeter
Ans: D
polarimeter
Question: 3
The fluid used in hydraulic controller is
(A) air
(B) oil
(C) water
(D) steam
Ans: B
oil
Question: 4
Thermistors which have a very high temperature coefficient of resistivity belong to the class of solid called
(A) conductors
(B) semiconductors
(C) dielectrics
(D) insulators
Ans: B
semiconductors
Question: 5
Load cells are used for the measurement of
(A) velocity
(B) strain
(C) stress
(D) weight
Ans: D
weight
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