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Three materials X, Y and Z having relative permittivity 2.5, 3.0 and 4.0 respectively are used in a single core cable. The materials on inner most and outer most layer respectively should be (a) X and Y (b) Y and Z (c) X and Z (d) Z and X 

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A single core lead sheathed cable with two dielectrics of permittivity 4 and 3, respectively, are subjected to same maximum stress. If the conductor diameter is 1.5 cm, the outer diameter of the first dielectric is (A) 1.125 cm (B) 1.5 cm (C ) 2 cm (D) 8 cm

asked Apr 28, 2018 in Power system by Shimroz123
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asked May 25, 2018 in Physics by Shimroz123
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asked Apr 25, 2018 in Electrical Engineering by Shimroz123
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asked Apr 25, 2018 in Electrical Engineering by Shimroz123
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asked Aug 12, 2018 in Basic electrical and electronics engineering by Quiz
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asked May 15, 2018 in Basic concepts by Shimroz123
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asked May 25, 2018 in Physics by Shimroz123
1 answer 14 views

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asked May 28, 2018 in Electronics Engineering by Shimroz123
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asked Apr 10, 2018 in Computer Engineering by Shimroz123
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asked Apr 12, 2018 in Electronics Engineering by Shimroz123
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asked Apr 14, 2018 in Electrical Engineering by Shimroz123
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asked May 28, 2018 in Electronics Engineering by Shimroz123
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asked May 3, 2018 in Power system by Shimroz123
1 answer 37 views

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asked May 3, 2018 in Physics by Shimroz123
1 answer 26 views

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asked May 17, 2018 in Synchronous machine by Shimroz123
1 answer 12 views

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asked Apr 12, 2018 in Electrical Engineering by Shimroz123
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asked Apr 25, 2018 in Electrical Engineering by Shimroz123
1 answer 15 views

The bridge most suited for accurate measurement of relative permittivity of dielectric materials is (A) Carey Foster Bridge (B) Anderson’s bridge (C) Heaviside Bridge modified by Campbell. (D) Schering Bridge.

asked Apr 28, 2018 in Control System by Shimroz123
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asked Apr 12, 2018 in Electronics Engineering by Shimroz123
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asked Apr 25, 2018 in Electrical Engineering by Shimroz123
1 answer 8 views

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asked Sep 2, 2018 by Shimroz123
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asked Apr 10, 2018 in Computer Engineering by Shimroz123
1 answer 24 views

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asked May 20, 2018 in Oscilloscope by Shimroz123
0 answers 16 views

A 4 pole lap wound dc shunt motor rotates at the speed of 1500 rpm, having a flux of 0.4 mWb and total number of conductors 1000. The value of e.m.f. will be:  (A) 100 Volts (B) 0.1 Volts (C) 1 Volts (D) 10 Volts

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1 answer 17 views

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Two generating stations G1 and G2 of ratings 10 MVA and 8 MVA respectively are linked by a line rated at 5 MVA, 0.1 Pu reactance. Each station has a reactance of 0.5 pu. If the base MVA is 10 MVA, short-circuit MVA of G1 is

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1 answer 31 views

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asked May 25, 2018 in Synchronous machine by Shimroz123
1 answer 11 views

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asked Sep 2, 2018 by Shimroz123
1 answer 18 views

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asked May 22, 2018 in Induction Machine by Shimroz123
1 answer 15 views

The current in a 200 mH coil increases from 2 to 5 A in 0.1 Second. What is rate of change of current? A. 30 A/s B. 20 A/s C. 10 A/s D. none of these

asked Apr 12, 2018 in Electrical Engineering by Shimroz123
1 answer 23 views

 In the case of an instrument reading of 8.3 V with a 0 to 150 voltmeter having a guaranteed accuracy of 1% full scale reading, the percentage limiting error is   (A) 1.810% (B) 0.181% (C)12.45% (D) 0.0018%

asked May 17, 2018 in Electrical Measurements and Instrumentation by Shimroz123
1 answer 24 views

Consider a continuous-time system with input x(t) & output y(t) are related by y(t) = x (sin t). This system is (A) causal & linear (B) non-causal & linear (C) causal & non-linear (D) non-causal & non-linear

asked Apr 26, 2018 in Control System by Shimroz123
1 answer 6 views

State the following, 1) Position of head light 2) Supply voltage for flasher light 3) Colours used for marker light 4) Frequencies for engine horn. 

asked Sep 2, 2018 by Shimroz123
3 answers 127 views

Three resistors of 4 Ω, 6 Ω and 9 Ω are connected in parallel. Which resistor consumes the maximum power?  (A) 4 Ω (B) 6 Ω (C) 9 Ω (D) 17 Ω

asked Apr 5, 2018 in Electrical Engineering by Shimroz123
1 answer 15 views

In a 2 kW, 200 V, 1000 rpm. DC series motor the torque at full load was found to be 0.3 N -m. The torque at half full load in N -m is :

asked Apr 29, 2018 in Electrical Machine by Shimroz123
2 answers 93 views

The sending end and receiving end voltages of a three-phase transmission line are 10 kV/ph and 9.5 kV/ph, respectively. If the resistance drop is 150 V/ph and receiving end power factor is 0.8, the sending end power factor is (A) 0.745 lagging (B) 0.775 lagging (C) 0.8 lagging (D) 0.85 lagging

asked Apr 28, 2018 in Power system by Shimroz123
1 answer 4 views

Give purpose and location of following signals, 1) Warner: 2) Co-acting: 3) Shunt: 4) Detonating:

asked Sep 2, 2018 by Shimroz123
1 answer 10 views

Draw the symbol and state the applications of : 1) Push button switch 2) Selector switch 3) Solenoid valve 4) Limit switch

asked Sep 2, 2018 by Shimroz123
1 answer 15 views

System 1 : The first column of the RH array consists of the terms 6,3,9,-2, and 4. System 2 : The first column of the RH array consists of the terms 3,6,9,2, and -4. The number of unstable poles for system1, and system 2, are respectively, (A) 1,1 (B) none, none (C) 2,2 (D) 2,1

asked Apr 28, 2018 in Control System by Shimroz123
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For better relative stability, the values of gain margin and phase margin should be respectively  A) 6 db, 15 degree B) 10 db, 15 degree C) 10 db, 30 degree D) 6 db, 30 degree

asked Apr 9, 2018 in Control System by Shimroz123

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