1. A load curve is a plot of

(D) Load versus cost of power.

2. During summer months the increased load is due to

(A) increased water supply
(B) vacations in institutions
(D) increased use of fans and air conditioners

3. Which of the following category of consumers can provide highest load factor?

(A) A domestic consumer
(B) A continuous process plant
(C) A steel melting unit using arc furnace
(D) A cold storage plant.

4. The normal connected load of a domestic consumer is usually

(A) up to 10 kW
(B) 10 to 20 kW
(C) 25 to 50 kW
(D) 50 to 100 kW

5. For economy in generation power

(A) diversity factor should be high
(B) plant utilization factor
(C) load factor should be high
(D) load factor and diversity factor should be low.

6. Which of the following installation provides peaked load?

(A) Arc furnace
(B) Air conditioner
(C) Air compressor running continuously
(D) Cold storage plant

7. Load due to a ceiling fans is nearly

(A) 10W
(B) 40 to 50 W
(C) 100 to 200 W
(D) 250 W to 2000 W

8. The load of a consumer is generally measured in terms of

(A) Volts
(B) Amperes
(C) Ampere hour
(D) kW

9. Demand factor is the

(A) Maximum Demand / Average Demand
(B) Maximum Demand / Connected Load
(C) Average Demand / Maximum Demand
(D) Connected Load / Maximum Demand

10. A stereo with two 10 watt loudspeakers will provide electrical load of

(A) more than 12 W
(B)12 W
(C) less than 6 W
(D) 6 W

11. In a system, if the base load is the same as the maximum demand, the load factor will be

(A) 1
(B) Zero
(C) Infinity
(D) 1 %

12. A system having a connected load of 100 kW, the peak load of 80 kW. base load of 20 kW and an average load of 40 kW, will have a load factor of

(A) 40%
(B) 50%
(C) 60%
(D) 80%

13. Load due to one-tonne air conditioner is nearly

(A)100W
(B) 200 to 500 W
(C) 1 kW to 2 kW
(D) 5 kW to 10 kW

14. Which domestic utility item has highest power rating?

(A) Refrigerator
(B) Ceiling fan
(C) Tube light
(D) Electric iron.