Power System - I (3140914) MCQs

MCQs of Conventional Generation, Load Curves and Tariffs

Showing 11 to 20 out of 425 Questions
1 2 3 4 5 6
11.
An hydro-electric power station is supplied from a reservoir of capacity 3×107 m3 at a head of 150 m. The overall efficiency of the power plant is 70%. Energy available from the plant will be
(a) 12.2625×106 kWh
(b) 8.858375×106 kWh
(c) 1.25×106 kWh
(d) 0.875×106 kWh
Answer:

Option (b)

12.
A hydro-electric power station is commonly found in
(a) Desert areas
(b) Hilly areas
(c) Swamps
(d) Grasslands
Answer:

Option (b)

13.
In hydro-electric power plants
(a) Operating cost if low and initial cost high
(b) Operating cost is high and initial cost is low
(c) Both operating cost as well as initial cost are high
(d) Both operating cost as well as initial cost are low
Answer:

Option (a)

14.
The advantages of hydro-plants are
(a) Low operating cost
(b) Started and loaded very quickly
(c) Used as base load and peak load plants as well
(d) All the above
Answer:

Option (d)

15.
Hydro-plants are more efficient than thermal plants
(a) Because hydro turbine efficiency is high
(b) Because hydro turbine efficiency is less
(c) None of above
(d) Insufficient data
Answer:

Option (a)

16.
The largest size of hydro-electric unit in India is
(a) 350 MW
(b) 500 MW
(c) 165 MW
(d) 90 MW
Answer:

Option (c)

17.
Gross head of an hydro-electric power station is
(a) The difference of water level between the level in the storage and tail race
(b) The height of water level in the river where the tail race is provided
(c) The height of water level in the river where the storage is provided
(d) All of above
Answer:

Option (a)

18.
A graphical representation of the discharge and time is known as
(a) Load curve
(b) Load duration curve
(c) Monograph
(d) Hydrograph
Answer:

Option (d)

19.
A hydrograph indicates
(a) The discharge at any time during the period under consideration
(b) The maximum and minimum run off during the period
(c) The average run-off during the period
(d) All of above
Answer:

Option (d)

20.
Hydrograph is similar to
(a) Load-duration curve
(b) Mass curve
(c) Energy load curve
(d) Chronological load curve
Answer:

Option (d)

Showing 11 to 20 out of 425 Questions
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