Govt Exams Mock Test FREE | Online Quiz Competition

Q1. Which of the following is false? Skin effect is found to increase with increase in

Conductor cross section

Supply frequency

Voltage

Permeability

Q2. Where severe synchronising swing occurs, the relay employed is

impedance relay

mho relay

reactance relay

induction relay.

Q3. Consider the following statements and choose the correct option:
Statement 1: The magnitude of earth fault current for a given fault position within a winding depends upon the method of neutral grounding.
Statement 2: Earth fault protection for an electric motor is provided by means of instantaneous overcurrent relay.

Statement 1 is FALSE and Statement 2 is TRUE

Both Statement 1 and Statement 2 are TRUE

Both Statement 1 and Statement 2 are FALSE

Statement 1 is TRUE and Statement 2 is FALSE

Q4. The operating time of an inverse definite minimum time (IDMT) overcurrent relay is ....................... proportional to the plug-setting multiplier (PSM) and ................. proportional to the time-multiplier setting (TMS).

inversely, inversely

directly, directly

directly, inversely

inversely, directly

Q5. The presence of earth wire in case of overhead lines

Increases the line capacitance

Decreases the line capacitance

Increases the line inductance

Decreases the line inductance

Q6. Which of the following statements are true?

Bus impedance matrix is a full matrix

Bus admittance matrix is a sparse matrix

Both A & B

Neither A nor B

Q7. For a single line to ground fault the zero sequence current is given by j 3.0 p.u., the current carried by the neutral during the fault is

j 1.0 p.u.

j 3.0 p.u.

j 9.0 p.u.

j 6.0 p.u.

Q8. The sequence components of the fault current are as follows: \(i_+ = j1.5 \: p.u., i_- = – j0.5 \: p.u., i_0 = –j1 \: p.u.\). The type of fault in the system is:

LG

LL

LLG

LLLG

Q9. Which type of earthing system is most effective in preventing voltage transients and ensuring the safety of sensitive electronic equipment?

IT system (isolated terra)

TN-C system (combined neutral and earth)

TN-S system (separate neutral and earth)

TT system (separate earth electrodes for system and consumer)

Q10. At normal atmospheric conditions breakdown strength of air is

3 KV/mm

30 KV/mm

3 KV/m

3 KV/cm

Quiz

Year 2025

November
Week # 3 Quiz 1

Q1. Which of the following is false? Skin effect is found to increase with increase in

Q2. Where severe synchronising swing occurs, the relay employed is

Q4. The operating time of an inverse definite minimum time (IDMT) overcurrent relay is ....................... proportional to the plug-setting multiplier (PSM) and ................. proportional to the time-multiplier setting (TMS).

Q5. The presence of earth wire in case of overhead lines

Q6. Which of the following statements are true?

Q7. For a single line to ground fault the zero sequence current is given by j 3.0 p.u., the current carried by the neutral during the fault is

Q8. The sequence components of the fault current are as follows: \(i_+ = j1.5 \: p.u., i_- = – j0.5 \: p.u., i_0 = –j1 \: p.u.\). The type of fault in the system is:

Q9. Which type of earthing system is most effective in preventing voltage transients and ensuring the safety of sensitive electronic equipment?

Q10. At normal atmospheric conditions breakdown strength of air is

Quiz

Year 2025

January Week # 2 Expire on 07 Feb 2025

January Week # 3 Expire on 14 Feb 2025

January Week # 4 Expire on 21 Feb 2025

February Week # 1 Expire on 28 Feb 2025

November Week # 3 Quiz 1

Q1. Which of the following is false? Skin effect is found to increase with increase in

Q2. Where severe synchronising swing occurs, the relay employed is

Q4. The operating time of an inverse definite minimum time (IDMT) overcurrent relay is ....................... proportional to the plug-setting multiplier (PSM) and ................. proportional to the time-multiplier setting (TMS).

Q5. The presence of earth wire in case of overhead lines

Q6. Which of the following statements are true?

Q7. For a single line to ground fault the zero sequence current is given by j 3.0 p.u., the current carried by the neutral during the fault is

Q8. The sequence components of the fault current are as follows: \(i_+ = j1.5 \: p.u., i_- = – j0.5 \: p.u., i_0 = –j1 \: p.u.\). The type of fault in the system is:

Q9. Which type of earthing system is most effective in preventing voltage transients and ensuring the safety of sensitive electronic equipment?

Q10. At normal atmospheric conditions breakdown strength of air is

Record & Track Your Performance

November
Week # 3 Quiz 1