Time Left - 15:00 mins

GATE 2020: Measurements Rapid Revision Quiz 1

Attempt now to get your rank among 739 students!

Question 1

The pressure coil of a dynamometer type wattmeter is

Question 2

An electrically deflected Cathode Ray Tube has a final anode voltage of 2000 V and parallel deflecting plates 1.5 cm long and 5 mm apart. If the screen is 50 cm from the centre of deflecting plates, find velocity of beam (in m/sec).

Question 3

In the bridge circuit shown below, at balance condition, the value of

and

then the value of inductancec

is _________ H.

Question 4

Consider the following data for the circuit shown below:

Ammeter: Resistance 0.2 Ω; Reading 5 A
Voltmeter: Resistance 2 kΩ; Reading 200 V
Wattmeter: current coil resistance 0.2 Ω
Pressure coil resistance 2 kΩ, Load ; Power factor = 1
The reading of the wattmeter is

Question 5

When a load of 750 W is connected, the disc of a single-phase energy meter rotates at 16 revolutions per minute. If the load is on for 6 hours, determine the % error of the meter. The meter constant is 1200 revolutions/kWh in percentage?

Question 6

A multi-range dc voltmeter is to be constructed by using individual multiplier resistors. A moving coil meter with internal resistance 80 Ω is to be used, which gives a full scale deflection with voltage 20 V. Determine the value of the multiplier resistors required, if the ranges of the voltmeter are 0 – 50 V, 0 – 100 V and 0 – 500 V.

739 attempts
5 upvotes
7 comments

Tags :

ESE & GATE EE Electrical & Electronic Measurements

Dec 18ESE & GATE EE