A load curve indicates___________? A. average power used during the periodB. average kWh (kW) energy consumption during the period C. either of the above D. none of the above

The load factor of domestic load is usually____________? A. 10 to 15% B. 30 to 40% C. 50 to 60% D. 60 to 70%

The expected useful life of an hydroelectric power station is around_________________? A. 15 years B. 30 years C. 60 yearsD. 100 years

For the same cylinder dimensions and speed, which of the following engine will produce least power? A. Supercharged engine B. Diesel engineC. Petrol engine D. All of the above engines will equal power

Which lightening stroke is most dangerous? A. Direct stroke on line conductor B. Indirect stroke on conductor C. Direct stroke on tower top D. Direct stroke on ground wire

Which of the following is the disadvantage of static capacitor for power factor improvement? A. Easily damaged by high voltage B. Cannot be repaired C. Short service lifeD. All of the above

The efficiency of a plant is of least concern when it is selected as___________? A. peak load plant B. casual run plantC. either A. or (b) D. base load plant

The primary reason for low power factor is supply system is due to installation of____________? A. induction motors B. synchronous motors C. single phase motors D. d.c. motors

In a load curve the highest point represents______________? A. peak demand B. average demand C. diversified demand D. none of the above

Most efficient plants are normally used as____________? A. peak load plantsB. base load plants C. either A. or (b) D. none of the above