Govt Exams Mock Test FREE | Online Quiz Competition

Q1. ............ is employed for rocky soil earth bed where excavation work is difficult.

Strip earthing

Plate earthing

Pipe earthing

Rod earthing

Q2. In a long transmission line, if length of line increases, the parameters A and B respectively

increases and decreases

increases and increases

decreases and decreases

decreases and increases

Q3. One current transformer (CT) is mounted over a 3-phase 3-core cable with its sheath and armour removed from the portion covered by the CT. An ammeter placed in the CT secondary would measure

The positive sequence current

The negative sequence current

The zero sequence current

Three times the zero sequence current

Q4. The DC offset in fault current causes conventional over-current (OC) relays to:

over-reach

reach remains unaffected due to DC offset

sometimes under-reach and sometimes over-reach

under-reach

Q5. With increase in series reactive loss in a transmission system,

frequency drops

system voltage degrades

Ferranti effect appears

low-frequency oscillation appears

Q6. When the nature of fault in a power system is L-L-G, the three sequence voltages at the point of fault are found to be

zero

equal

not equal

none of the above

Q7. While the dual active bridge converters are used to interface the two Autonomous DC microgrids, the transformer operates at?

Very low frequency

Low frequency

Medium frequency

High frequency

Q8. Circuit breakers usually operate under

transient state of short-circuit current

sub-transient state of short-circuit current

steady state of short-circuit current

after D.C. component has ceased

Q9. The neutral of the power system may be connected to earth

directly

through a resistor

through a reactor

Any of the above

Q10. The function of a breather in a transformer is

To provide protection against over currents.

To suppress harmonics.

To arrest the flow of moisture into the tank.

To control the level of oil in the tank.

Quiz

Year 2024

August
Week # 3 Quiz 1

Q1. ............ is employed for rocky soil earth bed where excavation work is difficult.

Q2. In a long transmission line, if length of line increases, the parameters A and B respectively

Q3. One current transformer (CT) is mounted over a 3-phase 3-core cable with its sheath and armour removed from the portion covered by the CT. An ammeter placed in the CT secondary would measure

Q4. The DC offset in fault current causes conventional over-current (OC) relays to:

Q5. With increase in series reactive loss in a transmission system,

Q6. When the nature of fault in a power system is L-L-G, the three sequence voltages at the point of fault are found to be

Q7. While the dual active bridge converters are used to interface the two Autonomous DC microgrids, the transformer operates at?

Q8. Circuit breakers usually operate under

Q9. The neutral of the power system may be connected to earth

Q10. The function of a breather in a transformer is

Quiz

Year 2024

August Week # 4 Expire on 21 Sep 2024

September Week # 1 Expire on 30 Sep 2024

September Week # 2 Expire on 07 Oct 2024

September Week # 3 Expire on 14 Oct 2024

August Week # 3 Quiz 1

Q1. ............ is employed for rocky soil earth bed where excavation work is difficult.

Q2. In a long transmission line, if length of line increases, the parameters A and B respectively

Q3. One current transformer (CT) is mounted over a 3-phase 3-core cable with its sheath and armour removed from the portion covered by the CT. An ammeter placed in the CT secondary would measure

Q4. The DC offset in fault current causes conventional over-current (OC) relays to:

Q5. With increase in series reactive loss in a transmission system,

Q6. When the nature of fault in a power system is L-L-G, the three sequence voltages at the point of fault are found to be

Q7. While the dual active bridge converters are used to interface the two Autonomous DC microgrids, the transformer operates at?

Q8. Circuit breakers usually operate under

Q9. The neutral of the power system may be connected to earth

Q10. The function of a breather in a transformer is

Record & Track Your Performance

August
Week # 3 Quiz 1