Power System - I (3140914) MCQs

MCQs of Conventional Generation, Load Curves and Tariffs

Showing 21 to 30 out of 425 Questions
21.
The factors affecting the run-off are
(a) Rain fall pattern, shape and size of catchment area
(b) The topography and nature of soil in the catchment area
(c) Amount of vegetation and weather condition in the catchment area
(d) All above
Answer:

Option (d)

22.
The flow-duration curve at a given head of a hydro-electric plant is used to determine
(a) Total power available at the site
(b) Total units of energy available
(c) Load-factor at the plant
(d) Diversity factor for the plant
Answer:

Option (a)

23.
In a load duration curve for an integrated power system the uppermost crest represents the energy contributed by
(a) Base power stations
(b) Major thermal stations
(c) Peaking hydro or gas turbine stations
(d) Non-conventional power stations
Answer:

Option (c)

24.
The area under a flow-duration curve represents
(a) Total units of energy available
(b) Total power available at site
(c) Total quantity of run-off during that period
(d) Maximum rate of run-off during that period
Answer:

Option (c)

25.
A mass curve can be plotted from
(a) Load duration curve
(b) Chronological load curve
(c) Energy load curve
(d) Both load duration curve and chronological load curve
Answer:

Option (b)

26.
Storage requirement can be determined from
(a) Hydrograph
(b) Flow-duration curve
(c) Mass curve
(d) Either by hydrograph or by mass curve
Answer:

Option (d)

27.
A penstock is used as a conduit between
(a) The steam chest and the turbine in a thermal station
(b) The dam and the turbine in a hydro-station
(c) The turbine and the discharge drain
(d) The heat exchanger and the turbine in a nuclear power plant
Answer:

Option (b)

28.
In high head hydro-electric power plant, the velocity of water flow in penstock is around
(a) 2 m/s
(b) 4 m/s
(c) 7 m/s
(d) 10 m/s
Answer:

Option (c)

29.
Location of a surge tank in a hydro-electric power station is near
(a) Turbine
(b) Tail race
(c) Reservoir
(d) Dam
Answer:

Option (a)

30.
The function of a surge tank is to
(a) Supply water at constant pressure
(b) Relieve water hammer pressure in the penstock pipe
(c) Produce surge in the pipe line
(d) None above
Answer:

Option (b)

Showing 21 to 30 out of 425 Questions