20EE262-BEEE-SQ2

___________ is an example of primary instrument.

• Multimeter

• Voltmeter

• Tangent Galvanometer

• Ammeter

Which of the following instruments respond very quickly?

• mechanical

• electrical

• secondary

• electronic

The __________ is required to move the pointer from zero position in an indicating instrument.

• controlling force

• deflecting force

• air friction damping

• eddy current damping

Which of the following is an integrating instrument?

• Wattmeter

• Ammeter

• Energy meter

• Voltmeter

The basic disadvantage of moving iron instrument is ____.

• complex construction

• non-linear scaling

• limited measurement range

• expensive

The power factor of the circuit connected to resistive load will be __________

• unity

• lagging

• leading

• zero

In a two-wattmeter method of measuring power, the wattmeter readings are 400W and -35W, then the total active power is ________

• 365W

• 360W

• 435W

• 420W

Power factor is the ratio of _______

• reactive power to active power

• apparent power to reactive power

• real power to apparent power

• real power to reactive power

Induction type single phase energy meters measure electric energy in _______

• kW

• Wh

• kWh

• VAR

In concentric vane type moving iron instrument______ vanes are co-axially placed inside the coil.

• 1

• 2

• 3

• 4