Govt Exams Mock Test FREE | Online Quiz Competition

Q1. Find the \(Z\)-parameter \(Z_{21}\) in following circuit.

60 \(\Omega\)

20 \(\Omega\)

40 \(\Omega\)

90 \(\Omega\)

Q2. The value of resistor having Red-Red-Red-Gold color band is

220 ohm ± 10%

2.2 K-ohm ± 5%

120 ohm ± 5%

220 ohm ± 20%

Q3. In two wattmeter method used for the measurement of power, if the p.f. is 0.5, then one of the wattmeter will read

Zero

\(\frac{W}{3}\)

\(\frac{W}{2}\)

\(\frac{W}{5}\)

Q4. Two watt meters are connected to measure the power in a 3-phase balanced load. Determine the power factor if the two watt meters read 600 Watts each and both positive.

1

0.0035

0.1

0.5

Q5. Find the force between \(2\:C\) and \(-1\:C\) separated by a distance \(1\:m\) in air.

\(-18 \times 10^{10}\: N\)

\(-1.8 \times 10^{10}\: N\)

\(-1.8 \times 10^{9}\: N\)

\(-1.8 \times 10^{8}\: N\)

Q6. The \(\begin{bmatrix} y \end{bmatrix}\) matrix for the two port network given below is

\(\begin{bmatrix}s&1 \\1&s\end{bmatrix}\)

\(\begin{bmatrix}\frac{1}{s}&-\frac{1}{s} \\-\frac{1}{s}&\frac{1}{s}\end{bmatrix}\)

\(\begin{bmatrix}1&\frac{1}{s} \\\frac{1}{s}&-1\end{bmatrix}\)

\(\begin{bmatrix}-\frac{1}{s}&\frac{1}{s} \\\frac{1}{s}&-\frac{1}{s}\end{bmatrix}\)

Q7. A 240 V, 50 Hz sine wave is starting its positive half cycle at t=0. It will achieve its negative maximum value in__________.

50 milli-sec

10 milli-sec

20 milli-sec

15 milli-sec

Q8. A star circuit has element of resistance \(10\:\Omega\). The equivalent delta elements will be

\(15\:\Omega\)

\(30\:\Omega\)

\(10\:\Omega\)

\(7.5\:\Omega\)

Q9. If the number of turns of a solenoid are doubled, its self inductance will be

same as original

double the original

four times the original

half the original

Q10. Calculate the inductance of a coil that induces 150 V, when a current changes at the rate of 3 A/s?

50 H

150 H

5 H

300 H

Quiz

Year 2024

September
Week # 1 Quiz 1

Q1. Find the \(Z\)-parameter \(Z_{21}\) in following circuit.

Q2. The value of resistor having Red-Red-Red-Gold color band is

Q3. In two wattmeter method used for the measurement of power, if the p.f. is 0.5, then one of the wattmeter will read

Q4. Two watt meters are connected to measure the power in a 3-phase balanced load. Determine the power factor if the two watt meters read 600 Watts each and both positive.

Q5. Find the force between \(2\:C\) and \(-1\:C\) separated by a distance \(1\:m\) in air.

Q6. The \(\begin{bmatrix} y \end{bmatrix}\) matrix for the two port network given below is

Q7. A 240 V, 50 Hz sine wave is starting its positive half cycle at t=0. It will achieve its negative maximum value in__________.

Q8. A star circuit has element of resistance \(10\:\Omega\). The equivalent delta elements will be

Q9. If the number of turns of a solenoid are doubled, its self inductance will be

Q10. Calculate the inductance of a coil that induces 150 V, when a current changes at the rate of 3 A/s?

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

September Week # 1 Quiz 1

Q1. Find the \(Z\)-parameter \(Z_{21}\) in following circuit.

Q2. The value of resistor having Red-Red-Red-Gold color band is

Q3. In two wattmeter method used for the measurement of power, if the p.f. is 0.5, then one of the wattmeter will read

Q4. Two watt meters are connected to measure the power in a 3-phase balanced load. Determine the power factor if the two watt meters read 600 Watts each and both positive.

Q5. Find the force between \(2\:C\) and \(-1\:C\) separated by a distance \(1\:m\) in air.

Q6. The \(\begin{bmatrix} y \end{bmatrix}\) matrix for the two port network given below is

Q7. A 240 V, 50 Hz sine wave is starting its positive half cycle at t=0. It will achieve its negative maximum value in__________.

Q8. A star circuit has element of resistance \(10\:\Omega\). The equivalent delta elements will be

Q9. If the number of turns of a solenoid are doubled, its self inductance will be

Q10. Calculate the inductance of a coil that induces 150 V, when a current changes at the rate of 3 A/s?

Record & Track Your Performance

September
Week # 1 Quiz 1