Question: Constant voltage transmission entails the following disadvantage?

• 1. large conductor area is required for same power transmission
• 2. short-circuit current of the system is increased
• 3. either of the above
• 4. none of the above

Question: In a tap changing transformer, the tappings are provided on__________?

• 1. primary winding
• 2. secondary winding
• 3. high voltage winding
• 4. any of the above

Question: Which of the following equipment, for regulating the voltage in distribution feeder, will be most economical?

• 1. Static condenser
• 2. Synchronous condenser
• 3. Tap changing transformer
• 4. Booster transformer

Question: For aluminium, as compared to copper, all the following factors have higher values except:

• 1. specific volume
• 2. electrical conductivity
• 3. co-efficient of linear expansion
• 4. resistance per unit length for same cross-section

Question: For transmission of power over a distance of 200 km, the transmission voltage should be_________kv?

• 1. 132 kV
• 2. 66 kV
• 3. 33 kV
• 4. 11 kV

Question: Aluminium has a specific gravity of___________?

• 1. 1.5
• 2. 2.7
• 3. 4.2
• 4. 7.8

Question: Pin type insulators are generally not used for voltages beyond_________?

• 1. 1 kV
• 2. 11 kV
• 3. 22 kV
• 4. 33 kV

Question: The current drawn by the line due to corona losses is___________?

• 1. non-sinusoidal
• 2. sinusoidal
• 3. triangular
• 4. square

Question: The use of strain type insulators is made where the conductors are__________?

• 1. dead ended
• 2. at intermediate anchor towers
• 3. any of the above
• 4. none of the above

Question: The voltage drop, for constant voltage transmission is compensated by installing__________?

• 1. inductors
• 2. capacitors
• 3. synchronous motors
• 4. all of above