1. A load curve is a plot of
Load versus generation capacity
Load versus current
Load versus time
Load versus cost of power.
2. For economy in generation power
diversity factor should be high
plant utilization factor high
load factor should be high
load factor and diversity factor should be
3. Which of the following category of consumers
can provide highest load factor ?
A domestic consumer
A continuous process plant
A steel melting unit using arc furnace
A cold storage plant.
4. The load of a consumer is generally measured
in terms of
5. The normal connected load of a domestic
consumer is usually
(A) up to 10 kW
(B) 10 to 20
(C) 25 to 50 kW
(D) 50 to
6. Load factor during a period is
(A) Average Load / Installed Capacity
(B) Average Load / Maximum Load
(C) Maximum Load / Average Load
(D) Maximum Load / Installed Capacity.
7. Which of the following installation provides
peaked load ?
Air compressor running continuously
Cold storage plant.
8. Demand factor is the
(A) Maximum Demand / Average Demand
(B) Maximum Demand / Connected
(C) Average Demand / Maximum Demand
(D) Connected Load / Maximum Demand.
9. During summer months
the increased load is due to
(A) increased water supply
(B) vacations in institutions
increased use of fans and air conditioners.
a system if the base load is the same as the maximum demand, the load factor
system having connected load of 100 kW, peak load of 80 kW. base load of 20 kW
and average load of 40 kW, will have a load factor of
due to one tonne air conditioner is nearly
200 to 500 W
(C) 1 kW to 2 kW
(D) 5 kW to 10 kW.
13. Load due to a ceiling fans is nearly
(B) 40 to 50 W
100 to 200 W
(D) 250 W to
domestic utility item has highest power rating ?
(B) Ceiling fan
(C) Tube light
stereo with two 10 watt loudspeakers will provide electrical load of
(A) more than 12 W
(C) less than 6 W
(D) 6 W.