EE8702 IAT-1 MCQ

The maximum demand of a consumer is 5 kW and his/her daily energy consumption is 24 units. His/her % load factor is

• 5

• 20

• 25

• 48

A generating station has a connected load of 40 MW and a

maximum demand of 20 MW. The demand factor is

• 0.7

• 0.6

• 0.5

• 0.4

If the load on an isolated generator is increased without

increasing the power input to the prime mover

• The generator will slow down

• The generator will speed up

• The generator voltage will increase

• The generator field

The speed regulation can be expressed as

• Ratio of change in frequency from no-load to full load to the rated frequency of the unit

• Ratio of change in frequency to the corresponding change in real-power generation.

• both (a) & (b)

• None of these

The area under the daily load curve gives

• The number of units generated in the day

• The average load of the day

• The load factor of the day

• The number of units generated in the year

The maximum demand on a power station is 120 MW. If the load factor is 40%. Calculate the Average Load.

• 48 x 10^3 kW

• 48 kW

• 2 %

• None of the choice

Turbine speed governing system consists of

• (A) Flyball speed governor

• (B) Hydraulic amplifier and Linkage mechanism

• (C) Speed changer

• (D) All of above

Load forecasting is a method

• (A) To estimate the load for future

• (B) To real time load estimation

• (C) Both a and b

• (D) None of the above

An alternator is supplying a load. If the excitation of the alternator is changed then

• power factor of the alternator will change

• terminal voltage of the alternator will change

• both terminal voltage and power factor will change

• either power factor or terminal voltage will change

Two alternators A and B are operating in parallel. If excitation of A is increased.

• reactive power of A is increased while that of B is decreased

• reactive power of A is increased while that of B is remain unchanged

• reactive power of A is decreased

• both real and reactive power of A are increased