Q.1
How much wind power does India hold?
  • 20,000 MW
  • 12,000 MW
  • 140,000 MW
  • 5000 MW
Q.2
The overall efficiency of thermal power plant is equal to
  • Rankine cycle efficiency
  • Carnot cycle efficiency
  • Regenerative cycle efficiency
  • Boiler efficiency x turbine efficiency x generator efficiency
Q.3
Solar thermal power generation can be achieved by
  • using focusing collector or heliostates
  • using flat plate collectors
  • using a solar pond
  • any of the above system
Q.4
At what range of speed is the electricity from the wind turbine is generated?
  • 100 – 125 mph
  • 450 – 650 mph
  • 250 – 450 mph
  • 30-35 mph
Q.5
What should be the value of earthing resistance for large power stations?
  • 1 Ω
  • 0.5 Ω
  • 2 Ω
  • 5 Ω
Q.6
When did the development of wind power in India began?
  • 1965
  • 1954
  • 1990
  • 1985
Q.7
If the load current decreases then the power factor
  • Will also decrease
  • Will increase
  • Will remains unchanged
  • None of these
Q.8
Power factor of a load can be improved by using
  • Static capacitors
  • Synchronous condenser
  • Phase advancer
  • All of the above
Q.9
Which of the following is not the distribution system normally used
  • 3 phase-4 wire
  • 3 phase-3 wire
  • Single phase - 3 wire
  • Single phase -4 wire.
Q.10
Which type of system is generally adopted for the generation and transmission of electrical power?
  • 3 phase 4 wire
  • 2 phase 3 wire
  • 3 phase 3 wire
  • None of these
Q.11
The steady state stability of the power system can be improved by
  • Increasing the number of parallel lines between the transmission points
  • Connecting capacitors in series with the line
  • Reducing the excitation of the machines
  • Both a and b
Q.12
The stability of the power system is not affected by which among these?
  • Generator reactance
  • Line losses
  • Excitation of generators
  • All of these
Q.13
Various power system faults in increasing order of severity are
  • LG,LL,LLG,LLLG
  • LLLG,LLG,LG,LL
  • LLG,LLLG,LL,LG
  • LL,LG,LLLG,LLG
Q.14
What percentage of fault occurring in the power system is line to line fault
  • 5 %
  • 30 %
  • 25 %
  • 15 %
Q.15
A _________ distribution system is more reliable than the ______ distribution system.
  • parallel, radial
  • parallel, ring
  • radial, parallel
  • ring, parallel
Q.16
The amount of energy available in the wind at any instant is proportional to ___ of the wind speed.
  • Square root power of two
  • Square root power of three
  • Square power
  • Cube power
Q.17
What is the expression for fault current in line to line fault?
  • If = √3 * (Ea / Z1 + Z2)
  • If = 3 * (Ea / Z1 + Z2)
  • If = √3 * (Ea / Z1 + Z2 + Z0)
  • If = 3 * (Ea / Z1 + Z2 + Z05)
Q.18
Winds having following speed are suitable to operate wind turbines.
  • 5 – 25m/s
  • 10 – 35m/s
  • 20 – 45m/s
  • 30 – 55m/s
Q.19
The rated voltage of a 3 phase power system is given by
  • rms peak voltage
  • Peak phase voltage.
  • rms line to line voltage
  • Peak line to line voltage.
Q.20
What are the terminal conditions in case of SLG fault, if the fault occurs in the phase A?
  • Vb = 0, Ia = 0, Ic = 0
  • Va = 0, Ib = 0, Ic = 0
  • Va = 0, Ia = 0, Ic = 0
  • Vb = 0, Ia = 0, Ib = 0
0 h : 0 m : 1 s