Top 150+ Solved Measurement and Instrumentation MCQ Questions Answer

From 16 to 30 of 109

Q. Most common form of A.C. meters met with in every day domestic and industrialinstallations are

a. mercury motor meters

b. commutator motor meters

c. induction type single phase energy meters

d. all of the above

  • c. induction type single phase energy meters

Q. Which of the following meters are not used on D.C. circuits

a. Mercury motor meters

b. Commutator motor meters

c. Induction meters

d. None of the above

  • c. Induction meters

Q. Which of the following is an essential part of a motor meter ?

a. An operating torque system

b. A braking device

c. Revolution registering device

d. All of the above

  • d. All of the above

Q. A potentiometer may be used for

a. measurement of resistance

b. measurement of current

c. calibration of ammeter

d. all of the above

  • d. all of the above

Q. is an instrument which measures the insulation resistance of an electric circuit relative toearth and one another,

a. Tangent galvanometer

b. Meggar

c. Current transformer

d. None of the above

  • b. Meggar

Q. The household energy meter is

a. an indicating instrument

b. a recording instrument

c. an integrating instrument

d. none of the above

  • c. an integrating instrument

Q. The pointer of an indicating instrument should be

a. very light

b. very heavy

c. either (a) or (b)

d. neither (a) nor (b)

  • a. very light

Q. The chemical effect of current is used in

a. D.C. ammeter hour meter

b. D.C. ammeter

c. D.C. energy meter

d. none of the above

  • a. D.C. ammeter hour meter

Q. In majority of instruments damping is provided by

a. fluid friction

b. spring

c. eddy currents

d. all of the above

  • c. eddy currents

Q. An ammeter is a

a. secondary instrument

b. absolute instrument

c. recording instrument

d. integrating instrument

  • a. secondary instrument

Q. In a portable instrument, the controlling torque is provided by

a. spring

b. gravity

c. eddy currents

d. all of the above

  • a. spring

Q. The disc of an instrument using eddy current damping should be of

a. conducting and magnetic material

b. non-conducting and magnetic material

c. conducting and non-magnetic material

d. none of the above

  • c. conducting and non-magnetic material

Q. The switch board instruments

a. should be mounted in vertical position

b. should be mounted in horizontal position

c. either (a) or (b)

d. neither (a) nor (b)

  • a. should be mounted in vertical position

Q. The function of shunt in an ammeter is to

a. by pass the current

b. increase the sensitivity of the ammeter

c. increase the resistance of ammeter

d. none of the above

  • a. by pass the current
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