Govt Exams Mock Test FREE | Online Quiz Competition

Q1. In a two plant system, the load is connected at plant 2. The loss co-efficients

\(B_{11}\),\(B_{12}\),\(B_{22}\) are non-zero

\(B_{11}\),\(B_{22}\) are non-zero \(B_{12}\) is zero

\(B_{11}\),\(B_{12}\) are zero \(B_{22}\) is non-zero

\(B_{11}\) is non zero, \(B_{12}\)and \(B_{22}\)are zero

Q2. If \(n_1\) is the refractive index of the core and \(n_2\) is the refractive index of the cladding, then the critical angle is given by

\(\sin^{-1}(\frac{n_1}{n_2})\)

\(\cos^{-1}(\frac{n_2}{n_1})\)

\(\cos^{-1}(\frac{n_1}{n_2})\)

\(\sin^{-1}(\frac{n_2}{n_1})\)

Q3. If the fault current is 4000 A, the C.T. ratio is 400/5 and the relay plug setting is 100%, the plug setting multiplier will be

20

40

10

15

Q4. If the safety factor is doubled, the sag of the line will

Decrease

Remain constant

Increase

Become zero

Q5. The equal area criterion for determination of transient stability of a synchronous machine connected to infinite bus

Ignores line as well as synchronous machine reactance and shunt capacitance

Assumes accelerating power acting on the rotor as constant

Ignores the effect of voltage regulator and governor but consider the inherent Jumping present in machine

Take into consideration the possibility of machine losing synchronism after has survived during the first swing

Q6. Calculate the inductance per conductor of the single-phase double circuit line shown in Fig. The diameter of each conductor is 2 cm.

0.12 mH/km

0.52 mH/km

1.32 mH/km

0.75 mH/km

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. The insulation resistance of a cable of length 10 km is 1 MΩ. For a cable of length 100 km, the insulation resistance will be

10 MΩ

5 MΩ

0.1 MΩ

20 MΩ

Q9. A 60 Hz voltage signal is sampled at 3000 Hz, then the phase angle between the two successive phasors estimated by DFT (Discrete fourier transform) is

\(7.2 ^{\circ}\)

\(9.2 ^{\circ}\)

\(6.2 ^{\circ}\)

\(8.2 ^{\circ}\)

Q10. The cable rating suitable for connecting a load of 3 kW to a single-phase supply of 230 V is________.

10 A

20 A

15 A

5 A

Quiz

Year 2024

December
Week # 2 Quiz 5

Q1. In a two plant system, the load is connected at plant 2. The loss co-efficients

Q2. If \(n_1\) is the refractive index of the core and \(n_2\) is the refractive index of the cladding, then the critical angle is given by

Q3. If the fault current is 4000 A, the C.T. ratio is 400/5 and the relay plug setting is 100%, the plug setting multiplier will be

Q4. If the safety factor is doubled, the sag of the line will

Q5. The equal area criterion for determination of transient stability of a synchronous machine connected to infinite bus

Q6. Calculate the inductance per conductor of the single-phase double circuit line shown in Fig. The diameter of each conductor is 2 cm.

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

Q8. The insulation resistance of a cable of length 10 km is 1 MΩ. For a cable of length 100 km, the insulation resistance will be

Q9. A 60 Hz voltage signal is sampled at 3000 Hz, then the phase angle between the two successive phasors estimated by DFT (Discrete fourier transform) is

Q10. The cable rating suitable for connecting a load of 3 kW to a single-phase supply of 230 V is________.

Quiz

Year 2024

November Week # 4 Expire on 21 Dec 2024

December Week # 1 Expire on 31 Dec 2024

December Week # 2 Expire on 07 Jan 2025

December Week # 3 Expire on 14 Jan 2025

December Week # 2 Quiz 5

Q1. In a two plant system, the load is connected at plant 2. The loss co-efficients

Q2. If \(n_1\) is the refractive index of the core and \(n_2\) is the refractive index of the cladding, then the critical angle is given by

Q3. If the fault current is 4000 A, the C.T. ratio is 400/5 and the relay plug setting is 100%, the plug setting multiplier will be

Q4. If the safety factor is doubled, the sag of the line will

Q5. The equal area criterion for determination of transient stability of a synchronous machine connected to infinite bus

Q6. Calculate the inductance per conductor of the single-phase double circuit line shown in Fig. The diameter of each conductor is 2 cm.

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

Q8. The insulation resistance of a cable of length 10 km is 1 MΩ. For a cable of length 100 km, the insulation resistance will be

Q9. A 60 Hz voltage signal is sampled at 3000 Hz, then the phase angle between the two successive phasors estimated by DFT (Discrete fourier transform) is

Q10. The cable rating suitable for connecting a load of 3 kW to a single-phase supply of 230 V is________.

Record & Track Your Performance

December
Week # 2 Quiz 5