# A consumer has a maximum demand of 60 kW at 0.50 load factor If tariff is Rs.750 per kW of maximum' demand plus Rs.1.20 per kWh, then overall cost per kWh, will be

1.  1.26

2.  1.18

3.  1.37

4.  1.29

4

1.37

Explanation :
No Explanation available for this question

# The transfer function of a simple RC network functioning as a controller is Gc(s)=s+z1/s+p1 The condition for the Rc network to act as a phase lead controller is

1.  p1 < z1

2.  p1>0

3.  p1=z1

4.  p1>z1

4

p1>z1

Explanation :
No Explanation available for this question

# An industrial consumer has a connected load of 100 kW. The maximum demand is 80 kW. On an average each machine works for 8 hours a day for 300 working days in a year. If tariff is Rs.(5000) + Rs.800 per kW of maximum demand + Rs.1.15 per kWh of energy consumed, the annual bill of the consumer will be

1.  Rs. 350000

2.  Rs. 400,000

3.  Rs. 250,000

4.  Rs. 34500

4

Rs. 34500

Explanation :
No Explanation available for this question

# A system described by the transfer function H(s)=1/s3+αs2+Ks+3 is stable. The constraints on α and K are

1.  α>0,αK

2.  α>0,αK>3

3.  α0

4.  α>0,α

4

α>0,αK>3

Explanation :
No Explanation available for this question

# Non-minimum phase transfer function is defined as the transfer function, which has

1.  zeros in the right-half s-plane

2.  zeros only in theb left-half s-plane

3.  poles in the right-half s-plane

4.  which has poles in the left half s-plane

4

zeros in the right-half s-plane

Explanation :
No Explanation available for this question

# A 50 Hz generator is delivering 50% of the power that is capable of delivering through a transmission line to an infinite bus. A fault occurs that increases the reactance between the generator and bus to 500% before the fault. When the fault is isolated, the maximum power that can be delivered is 75% of the original maximum value. The critical clearing angle for the condition is desired, will be

1.  67.440

2.  700

3.  50.40

4.  none of these

4

67.440

Explanation :
No Explanation available for this question

# For an unbalanced fault, with paths for zero sequence currents, at the point of fault

1.  negative and zero sequence voltages are minimum

2.  negative and zero sequence voltages are minimum

3.  negative sequence voltage is minimum and zero sequence voltage is maximum

4.  negative sequence voltage is maximum and voltage is minimum

4

negative and zero sequence voltages are minimum

Explanation :
No Explanation available for this question

# For a fault at the terminals of a synchronous generator, the fault current is. maximum for

1.  3-phase fault

2.  3-phase to ground fault

3.  line-to ground fault

4.  line to line fault

4

line-to ground fault

Explanation :
No Explanation available for this question

# Xd, Xd 'and. Xd" are steady state d- axis synchronous reactances, transient d-axis reactance and sub-transient d-reactance of a synchronous machine respectively. Which of the following statement is true

1.  Xd>Xd'>Xd"

2.  Xd">X'd>Xd

3.  X'd>X"d>Xd

4.  Xd>X"d>X'd

4

Xd>Xd'>Xd"

Explanation :
No Explanation available for this question

# A transfer function G(s) has the pole-zero plot as shown in the given figure. given that the steady state gain is 2, the transfer function G(s) will be given by

1.  2(s+1)/s2+4s+5

2.  5(s+1)/s2+4s+4

3.  10(s+1)/s2+4s+5

4.  10(s+1)/(s+2)2

4