Govt Exams Mock Test FREE | Online Quiz Competition

Q1. The average value of half wave rectified voltage with a peak value of 200 V is________.

63.7 V

127.3 V

141 V

200 V

Q2. Find the y-parameter '\(Y_{22}\)' for the given network.

0.75 S

0.5 S

0.625 S

2 S

Q3. ABCD parameters of two port networks relate the following:

\(V_1, V_2\:with\:I_1, I_2\)

\(V_1, I_1\:with\:V_2, I_2\)

\(V_2, I_1\:with\:V_1, I_2\)

None of the above

Q4. Inverse Laplace transform of \(\frac{1}{S+1}\) is

u(t)

u(– t)

\(e^{-t}u(t)\)

\(e^t u(-t)\)

Q5. The r.m.s. value of the voltage \(V(t) = 3 + 4 \cos 3t\) is _______V.

5

7

\(\sqrt{17}\)

\(3+2\sqrt{2}\)

Q6. What will be the phase difference between the two sinusoidal voltages \(V_1= -10 \cos(\omega t + 50^\circ)\) and \(V_2= 12 \sin(\omega t - 10^\circ)\) ?

\(30^\circ\)

\(90^\circ\)

\(120^\circ\)

\(60^\circ\)

Q7. In a series R-L-C circuit the condition for resonance is

\(X_L=X_C\)

Power factor becomes unity

Circuit becomes resistive

All of above

Q8. Calculate lifting force of an electromagnet having a flux density in the air gap equal to \(0.25\:wb/m^2\) and area of contact equal to \(0.12\:m^2\).

2815 N

2984.15 N

304.38 N

2984.15 kg

Q9. What will happen if the frequency of power supply in a pure capacitive circuit is doubled?

Current will be reduced to half

Current will also be doubled

Current will remain same

Current will increase four times

Q10. What is the flux density in a magnetic field of cross-sectional area 20 \(cm^2\) having a flux of 3 mWb?

3 T

6.5 T

4.25 T

1.5 T

Quiz

Year 2025

December
Week # 1 Quiz 2

Q1. The average value of half wave rectified voltage with a peak value of 200 V is________.

Q2. Find the y-parameter '\(Y_{22}\)' for the given network.

Q3. ABCD parameters of two port networks relate the following:

Q4. Inverse Laplace transform of \(\frac{1}{S+1}\) is

Q5. The r.m.s. value of the voltage \(V(t) = 3 + 4 \cos 3t\) is _______V.

Q6. What will be the phase difference between the two sinusoidal voltages \(V_1= -10 \cos(\omega t + 50^\circ)\) and \(V_2= 12 \sin(\omega t - 10^\circ)\) ?

Q7. In a series R-L-C circuit the condition for resonance is

Q8. Calculate lifting force of an electromagnet having a flux density in the air gap equal to \(0.25\:wb/m^2\) and area of contact equal to \(0.12\:m^2\).

Q9. What will happen if the frequency of power supply in a pure capacitive circuit is doubled?

Q10. What is the flux density in a magnetic field of cross-sectional area 20 \(cm^2\) having a flux of 3 mWb?

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

December Week # 1 Quiz 2

Q1. The average value of half wave rectified voltage with a peak value of 200 V is________.

Q2. Find the y-parameter '\(Y_{22}\)' for the given network.

Q3. ABCD parameters of two port networks relate the following:

Q4. Inverse Laplace transform of \(\frac{1}{S+1}\) is

Q5. The r.m.s. value of the voltage \(V(t) = 3 + 4 \cos 3t\) is _______V.

Q6. What will be the phase difference between the two sinusoidal voltages \(V_1= -10 \cos(\omega t + 50^\circ)\) and \(V_2= 12 \sin(\omega t - 10^\circ)\) ?

Q7. In a series R-L-C circuit the condition for resonance is

Q8. Calculate lifting force of an electromagnet having a flux density in the air gap equal to \(0.25\:wb/m^2\) and area of contact equal to \(0.12\:m^2\).

Q9. What will happen if the frequency of power supply in a pure capacitive circuit is doubled?

Q10. What is the flux density in a magnetic field of cross-sectional area 20 \(cm^2\) having a flux of 3 mWb?

Record & Track Your Performance

December
Week # 1 Quiz 2