Measurements &Instrumentation Objective Questions with Answers Pdf - 2

Question: 6

The most stable primary atomic standards for frequency is

(A) rubidium vapour standard

(B) quartz standard

(C) hydrogen maser standard

(D) caesium beam standard

Question: 7

Wagner’s ground is used to

(A) measure inductance

(B) measure resistance

(C) measure capacitance

(D) eliminates earth from the bridge network capacitance

Question: 8

A vibration galvanometer is tuned

(A) by changing the length and tension of vibrating coil

(B) by attaching weight to the vibration coil

(C) by changing its damping constant

(D) all of the above

Question: 9

An ac bridge uses a detector in the form of

(A) wattmeter

(B) headphones

(C) voltmeter

(D) ammeter

Question: 10

Holes are filled on the opposite side of the disc of an induction type energy meter to

(A) increase the deflecting torque

(B) dissipate heat energy due to eddy currents

(C) balance the disc

(D) avoid creep on no load