GPL - Gate Question |

X Close

You need to enable javascript to view this page properly.

Branch

All

Loading

589.

Group II represnts the figures obtained on a CRO screen when the voltage signals V_x = V_xm sin ωt and V_y = V_ym sin(ωt+Φ) are given to its X and Y plates respectively and Φ is changed. Choose the correct value of φ from Group I to match with the corresponding figure of Group II.

[2 marks]
(a) P – 1, Q – 3, R – 6, S - 5
(b) P – 2, Q – 6, R – 4, S - 5
(c) P – 2, Q – 3, R – 5, S – 4
(d) P – 1, Q – 5, R – 6, S - 5

asked in Electrical Engineering, 2003

View Comments [0 Reply]
590.

The voltage flux adjustment of a certain 1-phase 220 V induction watt hour meter is altered so that the phase angle between the applied voltage and the flux due to it is 85° (instead of 90°). The errors introduced in the reading of this meter when the current is 5A at power factors of unity and 0.5 lagging are respectively. [2 marks]
(a) 3.8 mW, 77.4 mW
(b) -3.8 mW, -77.4 mW
(c) -4.2 W, -85.1 W
(d) 4.2 W, 85.1 W

asked in Electrical Engineering, 2003

View Comments [0 Reply]
591.

A 500 A/5 A, 50 Hz current transformer has a bar primary. The secondary burden is a pure resistance of 1 Ω and it draws a current of 5 A. If the magnetic core requires 250 AT for magnetization, the percentage ratio error is [2 marks]
(a) 10.56
(b) -10.56
(c) 11.80
(d) -11.80

asked in Electrical Engineering, 2003

View Comments [0 Reply]
592.

The inductance of a certain moving-iron ammeter is expressed as
L = 10 + 30 - θ²/4 µH, where θ is the deflection in radians from the zero position. The control spring torque in 25×10^-6 Nm/radian. The deflection of the pointer in radian when the meter carries a current of 5A, is
[2 marks]
(a) 2.4
(b) 2.0
(c) 1.2
(d) 1.0

asked in Electrical Engineering, 2003

View Comments [0 Reply]
593.

A wattmeter reads 400 W when its current coil is connected in the R phase and its pressure coil is connected between this phase and the neutral of a symmetrical 3-phase system supplying a balanced star connected 0.8p.f. inductive load. The phase sequence is RYB. What will be the reading of this wattmeter if its pressure coil alone is reconnected between the B and Y phases, all other connections remaining as before [2 marks]
(a) 400.0
(b) 519.6
(c) 300.0
(d) 692.8

asked in Electrical Engineering, 2003

View Comments [0 Reply]
594.

A rectifier type ac voltmeter consists of a series resistance R_s, an ideal full wave rectifier bridge and a PMMC instrument as shown in Fig.Q79. The internal resistance of the instrument is 100 Ω and a full-scale deflection is produced by a dc current of 1 mA. The value of R_s Required to obtain full scale deflection with an ac voltage of 100 V (rms) applied to the input terminals is

[2 marks]
(a) 63.56 Ω
(b) 89.93 Ω
(c) 89.93 Ω
(d) 141.3 Ω

asked in Electrical Engineering, 2003

View Comments [0 Reply]

792 1 ...‹‹97 9899 100 101 ›› ... 132

High Frequency Word List with Mnemonics

GPL Dictionary is fast way to learn words with mnemonics.
It contains high frequency word list which are mostly asked in various examinations.
It is dedicated for student appearing for PSUs, GRE, UPSC or any other exams in which vocabulary test is taken.
User can save their own mnemonics (key and link).

Check Now