Rajasthan Technical Education Second Year Paper 2016 Electrical Measurement & Instrumentation

Rajasthan Technical Education Second Year Paper 2016 Electrical Measurement & Instrumentation

Example of integrating type instrument is
(a) Ammeter
(b) Voltmeter
(c) Ohmmeter
(d) Energymeter

In Eddy current damping, the disc should be made of which matel ?
(a) Iron
(b) Copper
(c) Aluminium
(d) Tungsten

Permanent magnet moving coil instrument works on
(a) Only D.C
(b) Only A.C
(c) Both A.C and D.C
(d) On Eddy current

A set of readings has a wide range and therefore it has
(a) High Accuracy
(b) Low Accuracy
(c) Low Precision
(d) High Precision

From the point of view of safety, the resistance of earthing electrode should be
(a) Low
(b) Medium
(c) High
(d) It’s value of resistance does not affect safety

For getting best results, indicating instruments should have damping
(a) Underdamped
(b) Critical damped
(c) Over damped
(d) None of the above

Best method of measurement of low resistance is
(a) Kelvin Double Bridge
(b) Wheatstone Bridge
(c) Voltmeter-Ammeter method
(d) Megger

Dynamometer type of instruments finds its major use as
(a) Standard instrument only
(b) Transfer instrument only
(c) Indicating instrument only
(d) Standard and transfer instrument

For range extension of permanent magnet moving coil type ammeter, we use
(a) Shunt
(b) Multiplier
(c) Potential transfer
(d) None of the above

When a potentiometer is used for measurement of voltage of an unkown source, the power consumed in the circuti of the unkown source under null conditions
(a) is very high
(b) is high
(c) is small
(d) is zero

In A.C potentiometers to reduce electric heating effect, the resistance coil wire is made from
(a) Maganin
(b) Eureka
(c) Platinum
(d) Aluminium

Maxwell’s inductance-capacitance bridge is used for measurement of inductance of
(a) low Q coil
(b) medium Q-coil
(c) high Q-coil
(d) low and medium Q coils

Frequency can be measured by using
(a) Maxwell’s bridge
(b) Schering Bridge
(c) Heaviside campbell bridge
(d) Wein’s bridge

A PMMC meter has an internal resistance of 500 ohm and the current required for its full scale deflection is 100 micro ampere. The power consumed by the meter is
(a) 5 micro watt
(b) 5 milli watt
(c) 5 watt
(d) 0.5 micro watt