MEASURING INSTRUMENT MCQ

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MEASURING INSTRUMENT MCQ_05

MEASUREMENT

Q.61 An Ammeter is connected in _____ with the series circuit.

1 point

parallel

series

series-parallel

any of the above depend upon the connected load

Clear selection

Q.62 In moving iron voltmeter the coil has____

1 point

low impedance

low conductance

high impedance

high conductance

Clear selection

Q.63 A voltmeter is connected in _____ with the circuit

1 point

parallel

series

series-parallel

any of the above depend upon the connected load

Clear selection

Q.64 When the current producing the magnetic field is greater than the amount of deflection would of ____.

1 point

less

greater

zero

negligible

Clear selection

Q.65 Which of the following is correct if the iron disc would always be magnetized in a such a way that is pulled inwards?

1 point

forward direction of current through the coil

reverses direction of current through the coil

whatever the direction of current through the coil

depend on polarity of supply

Clear selection

Q.66 In moving iron type instrument the damping is provided by_

1 point

air friction damping

eddy current damping

fluid damping

gravity

Clear selection

Q.67 A moving iron type instrument is used for measuring of ______.

1 point

DC only

Both AC and DC

AC only

power factor

Clear selection

Q.68 In repulsion type instrument the force of repulsion is

1 point

proportional to the current passing through the coil

inversely proportional to the current passing through the coil

proportional to the square of current passing through the coil

inversely proportional to the square of current passing through the coil

Clear selection

Q.69 In repulsion type instrument the deflecting torque is due to the _____between the two _____ magnetized sheet or rods.

1 point

attractive force; similarly

repulsive force; similarly

repulsive force; dissimilarly

attractive force; dissimilarly

Clear selection

Q.70 In repulsive type instrument in order to achieve uniformity of scale ______ are used instead of two rods.

1 point

two tongue shaped strip

two cylindrical shape strip

two rectangular shaped strip

two circular shaped strip

Clear selection

Q.71 Why eddy current damping is no employed in repulsive type instrument?

1 point

because of presence of permanent magnet

because of presence of tongue shape strip

because of uniformity of scale

all of the above

Clear selection

Q.72 which of the following damping is provided in repulsive type moving iron instrument?

1 point

fluid damping

pneumatic damping

gravity control

eddy current damping

Clear selection

Q.73 Moving iron type instrument is ____

1 point

gravity control

spring control

Either A or B

eddy current control

Clear selection

Q.74 In eddy current damping is provided in repulsive type moving iron instrument__

1 point

it would affect the deflection

it would affect the reading of the instrument

Both A and B

eddy current loss takes place

Clear selection

Q.75 In repulsive type instrument the polarity of both rods are reverse simultaneously than the deflection____

1 point

also changed

not changed

remains at zero position

deflected to infinite

Clear selection

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