Q. A phase shifting transformer is used in conjunction with

View solution

Q. In a megger the controlling torque is provided by

View solution

Q. A 3-digit voltmeter having a resolution of 100 mV can be used to measure a maximum of

View solution

Q. For measurement of high voltage capacitors the suitable bridge is

View solution

Q. In a phase shifting transformer the currents in the two stator winding are in phase.

View solution

Q. A power factor meter has

View solution

Q. In a semiconductor strain gauge, the ohmic electrical contacts are generally made of

View solution

Q. To measure dielectric loss you would use

View solution

Q. Minute cracks in metals and minute faults in welded joints can be detected using

View solution

Q. Which of these instruments has highest power consumption?

View solution

Q. If A = 629 ± 8 and B = 131 ± 3, A - B with range of doubt is

View solution

Q. Assertion (A): If the reading of an instrument is low, the error is large.

Reason (R): The error of an instrument is certain percentage of its full scale deflection.

View solution

Q. A thermocouple instrument can be used over a very wide frequency range.

View solution

Q. A vibration galvanometer is a

View solution

Q. A megger has a hand driven dc generator.

View solution

Q. A hot wire instrument is not affected by stray magnetic fields.

View solution

Q. Assertion (A): A ballistic galvanometer is used to measure charge.

Reason (R): In a flux meter, the damping is large.

View solution

Q. Assertion (A): A transducer needs an output measuring or display device for measuring a non electrical quantity.

Reason (R): In some transducers the output voltage is too small and needs amplification before it can be measured.

View solution

Q. Acoustic strain gauges

View solution

Q. Which of these instruments is dynamometers type?

View solution