Top 150+ Solved Electromagnetic Interference MCQ Questions Answer

a. power factor meter

b. energy meter

c. voltmeter

d. ammeter

a. voltmeter

b. ammeter

c. wattmeter

d. watt-hour meter

a. balance of the disc

b. dissipate heat generated due to eddy currents

c. avoid creep on load

d. increase the deflection torque

a. highly inductive

b. highly resistive

c. purely inductive

d. purely resistive

a. air friction

b. fluid friction

c. gravity

d. eddycurrent

a. r=0

b. x=0

c. r=x

d. none of the above

a. 10a

b. 30a

c. 200a

d. 100a

a. drilling holes in the disc

b. lag circuits

c. shading bands

d. none of the above

a. there is control spring

b. there is a brake magnet

c. creeping error is present

d. disc revolves continuously

a. an operating torque system

b. a braking device

c. revolution registering device

d. all of the above

a. friction compensation

b. creep compensation

c. braking torque

d. none of the above

a. safe guard it against creep

b. brake the instrument

c. bring energy meter to stand still

d. maintain steady speed and equal to driving torque

a. light load or friction

b. lag and creep

c. overload and voltage compensation

d. all of the above

a. pressure measurement

b. flow measurement

c. displacement measurement

d. level measurement

a. bottom of the vessel containing the liquid

b. top of the vessel containing the liquid

c. middle of the vessel containing the liquid

d. far from the vessel containing the liquid