Govt Exams Mock Test FREE | Online Quiz Competition

Q1. In an interconnected system the diversity factor of whole system

remains uncharged

decreases

increases

none of above

Q2. Bundled conductors are mainly used

to increase the shunt capacitance

to decrease the shunt capacitance

to increase the series reactance

to decrease the series reactance

Q3. The making to breaking current ratio for an EHV circuit breaker is

more than 1

equal to 1

less than 1

a negative number

Q4. A current limiting reactor is installed in a power system to .................... the short-circuit current by adding a reactive based impedance and thus .................... the voltage drop across their terminals during the fault.

increase, decrease

increase, increase

decrease, increase

decrease, decrease

Q5. Which type of transformer core design allows for reduced construction height compared to others?

Three-leg core

Five-leg core

Circular core

Rectangular core

Q6. If a \(75 MVA, 10 kV\) synchronous generator has \(X_d =0.4 \: pu\), then \(X_d\) value in \(p.u.\) to a base of \(100 MVA, 11 kV\) is

0.4 pu

0.2 pu

0.44 pu

0.52 pu

Q7. Which relay operates during the removal of one phase of the large induction motor?

short circuit

earth fault

negative phase sequence

none of the above

Q8. For 3 phase feeder protection in a distribution network, the number of earth fault relays required is

1

3

2

5

Q9. The specifications of an FS-380 solar module is presented as below. Nominal power \(80 \: W\), Voltage at \(P_{max}\) is \(50.7 \: V\), Current at \(P_{max}\) is \(1.58 \: A\), Open circuit voltage is \(61.7 \: V\), Short circuit current is \(1.76 \: A\). The area of the module is \( 0.72 \: m^2\). What is the efficiency of the module under standard test conditions \(1000 \: W/m^2\).

11.11%

15%

80%

73.67%

Q10. Differential protection relays compare currents at different points in a circuit. How can optical fibers improve the performance of differential protection schemes?

Increase relay operating speed

Reduce relay setting complexity

Eliminate the need for current transformers (CTs)

Enhance fault discrimination capabilities

Quiz

Year 2024

October
Week # 3 Quiz 1

Q1. In an interconnected system the diversity factor of whole system

Q2. Bundled conductors are mainly used

Q3. The making to breaking current ratio for an EHV circuit breaker is

Q4. A current limiting reactor is installed in a power system to .................... the short-circuit current by adding a reactive based impedance and thus .................... the voltage drop across their terminals during the fault.

Q5. Which type of transformer core design allows for reduced construction height compared to others?

Q6. If a \(75 MVA, 10 kV\) synchronous generator has \(X_d =0.4 \: pu\), then \(X_d\) value in \(p.u.\) to a base of \(100 MVA, 11 kV\) is

Q7. Which relay operates during the removal of one phase of the large induction motor?

Q8. For 3 phase feeder protection in a distribution network, the number of earth fault relays required is

Q10. Differential protection relays compare currents at different points in a circuit. How can optical fibers improve the performance of differential protection schemes?

Quiz

Year 2024

September Week # 4 Expire on 21 Oct 2024

October Week # 1 Expire on 31 Oct 2024

October Week # 2 Expire on 07 Nov 2024

October Week # 3 Expire on 14 Nov 2024

October Week # 3 Quiz 1

Q1. In an interconnected system the diversity factor of whole system

Q2. Bundled conductors are mainly used

Q3. The making to breaking current ratio for an EHV circuit breaker is

Q4. A current limiting reactor is installed in a power system to .................... the short-circuit current by adding a reactive based impedance and thus .................... the voltage drop across their terminals during the fault.

Q5. Which type of transformer core design allows for reduced construction height compared to others?

Q6. If a \(75 MVA, 10 kV\) synchronous generator has \(X_d =0.4 \: pu\), then \(X_d\) value in \(p.u.\) to a base of \(100 MVA, 11 kV\) is

Q7. Which relay operates during the removal of one phase of the large induction motor?

Q8. For 3 phase feeder protection in a distribution network, the number of earth fault relays required is

Q10. Differential protection relays compare currents at different points in a circuit. How can optical fibers improve the performance of differential protection schemes?

Record & Track Your Performance

October
Week # 3 Quiz 1