Reflection co-efficient (ρ) with reference to a transmission line can be expressed in terms of (ZL) and (Z0) as

1.  

2.  

3.  

4.  

View Answer  
4
Correct Answer :


Explanation :
No Explanation available for this question

The characteristic impedance Z0 is given by

1.  

2.  

3.  

4.  

View Answer  
4
Correct Answer :


Explanation :
No Explanation available for this question

Find the value of C to deliver the maximum power to load

1.  0.125F

2.  0.5F

3.  2F

4.  4

View Answer  
4
Correct Answer :

0.125F


Explanation :
No Explanation available for this question

What should be the value of zL for maximum power transfer to it K1=3.

1.  j

2.  –j

3.  0.5j

4.  -0.5j

View Answer  
4
Correct Answer :

-0.5j


Explanation :
No Explanation available for this question

A balanced delta connected load of (8+j6) per phase is connected to a 3, 230V power supply. Find pf and real power consumed by the circuit.

1.  0.8 and 12.7 kW

2.  0.6 and 9.7 kW

3.  0.6 and 12.7 kW

4.  0.8 and 9.7 kW

View Answer  
4
Correct Answer :

0.8 and 12.7 kW


Explanation :
No Explanation available for this question

A 3wire 400V system with phase sequence RBY supplies a delta connected load having ZRY=Z1, ZYB=Z2, ZBR=2000 ; if line current Ib=45.1

1.  

2.  

3.  

4.  

View Answer  
4
Correct Answer :


Explanation :
No Explanation available for this question

A 440V, 3,4-wire services main supplies a star connected load. The resister of each line is 0.1and of neutral line is 0.2The load impedance are zR=6+j8, zY=10 and zB=z. If current in neutral wire IN=-15.25-j28.5 then what will be the value of z Phase sequence is RYB.

1.  10-j5

2.  10+j5

3.  -10+j5

4.  -10-j5

View Answer  
4
Correct Answer :

10-j5


Explanation :
No Explanation available for this question

A balanced 3star connected load is fed from a 08V,3supply. Each load has resistance of 35.The total power is

1.  1236 W

2.  411.3 W

3.  618 W

4.  None of these

View Answer  
4
Correct Answer :

1236 W


Explanation :
No Explanation available for this question

Phasor diagram representing V-I for above network is shown here, what is the value of C at ω=1

1.  100F

2.  10F

3.  1000F

4.  1F

View Answer  
4
Correct Answer :

100F


Explanation :
No Explanation available for this question

Which of the following is true regarding the phasor diagram for the network as shown in the figure

1.  

2.  

3.  

4.  Can’t say

View Answer  
4
Correct Answer :


Explanation :
No Explanation available for this question
Previous Next

Interview Questions

MongoDB
Java Script
Node JS
PHP
JQuery
Python