Question: Which of the following is the disadvantage of a synchronous condenser?

• 1. High maintenance cost
• 2. Continuous losses in motor
• 3. Noise
• 4. All of the above

Question: For a consumer the most economical power factor is generally____________?

• 1. 0.5 lagging
• 2. 0.5 leading
• 3. 0.95 lagging
• 4. 0.95 leading

Question: In an interconnected system, the diversity factor of the whole system:

• 1. remains unchanged
• 2. decreases
• 3. increases
• 4. none of the above

Question: __________ will be least affected due to charge in supply voltage frequency.

• 1. Electric clock
• 2. Mixer grinder
• 3. Ceiling fan
• 4. Room heater

Question: Which of the following is not necessarily an advantage of interconnecting various power stations?

• 1. Improved frequency of power supplied
• 2. Reduction in total installed capacity
• 3. Increased reliability
• 4. Economy in operation of plants

Question: For a diesel generating station the useful life is expected to be around_________Years?

• 1. 15 to 20 years
• 2. 20 to 50 years
• 3. 50 to 75 years
• 4. 75 to 100 years

Question: Which of the following is not a method for estimating depreciation charges?

• 1. Sinking fund method
• 2. Straight line method
• 3. Diminishing value method
• 4. Halsey’s 50—50 formula

Question: Which of the following source of power is least reliable?

• 1. Solar energy
• 2. Geothermal power
• 3. Wind power
• 4. iMHD

Question: An over excited synchronous motor on no load is known as__________?

• 1. synchronous condenser
• 2. generator
• 3. induction motor
• 4. alternator

Question: Which of the following plants is almost inevitably used as base load plant?

• 1. Diesel engine plant
• 2. Gas turbine plant
• 3. Nuclear power plant
• 4. Pumped storage plant