Govt Exams Mock Test FREE | Online Quiz Competition

Q1. When a 440/220V transformer is connected to 400 V D.C. supply

The output will be 0 V

The transformer may burn

The output will be 220 V

The output will be less than 230 V

Q2. _________ increases the steady state accuracy.

Integrator

Differentiator

Phase lead compensator

Phase lag compensator

Q3. According to Gujarat Electricity Regulatory Commission, the voltages at the point of commencement of supply to a consumer with reference to the declared voltage should be within the limits,

For Low Voltage, +6% and –6%, For High Voltage, +6% and –9%

For Low Voltage, +5% and –5%, For High Voltage, +6% and –9%

For Low Voltage, +5% and –5%, For High Voltage, +5% and –10%

For Low Voltage, +6% and –6%, For High Voltage, +5% and –10%

Q4. For a frequency of 200 Hz the time period will be

0.05 second

0.005 second

0.0005 second

0.5 second

Q5. Air gap in the iron core prevents

Eddy current loss

Core separation

Hysteresis

Induction effect

Q6. For a linear electromagnetic circuit the following statement is true.

Field energy is equal to co-energy

Field energy is greater than co-energy

Field energy is less than co-energy

Co-energy is zero

Q7. The direction of magnetic field, according to Fleming's right hand rule is indicated by_________.

thumb

middle finger

fore finger

both fore finger and middle finger

Q8. Calculate the Zener impedance if the change in Zener voltage is 100 mV for a 20 mA change in Zener current on the linear portion of the characteristic curve.

5 \(\Omega\)

10 \(\Omega\)

50 \(\Omega\)

25 \(\Omega\)

Q9. Find the current through the resistor and the capacitor for the circuit shown in Fig. The switch is closed at t = 0 and initial change in the capacitor is zero.

i(t)=5\(e^{-5000t}\) A

i(t)=5(\(1- e^{-5000t}\)) A

i(t)=10(\(1- e^{-5000t}\)) A

i(t)=10\(e^{-5000t}\) A

Q10. The buffer used in an operational amplifier is usually:

CMOS

TTL

IGFET

Emitter follower

Quiz

Year 2024

March
Week # 3 Quiz 5

Q1. When a 440/220V transformer is connected to 400 V D.C. supply

Q2. _________ increases the steady state accuracy.

Q3. According to Gujarat Electricity Regulatory Commission, the voltages at the point of commencement of supply to a consumer with reference to the declared voltage should be within the limits,

Q4. For a frequency of 200 Hz the time period will be

Q5. Air gap in the iron core prevents

Q6. For a linear electromagnetic circuit the following statement is true.

Q7. The direction of magnetic field, according to Fleming's right hand rule is indicated by_________.

Q8. Calculate the Zener impedance if the change in Zener voltage is 100 mV for a 20 mA change in Zener current on the linear portion of the characteristic curve.

Q9. Find the current through the resistor and the capacitor for the circuit shown in Fig. The switch is closed at t = 0 and initial change in the capacitor is zero.

Q10. The buffer used in an operational amplifier is usually:

Quiz

Year 2024

April Week # 1 Expire on 30 Apr 2024

April Week # 2 Expire on 07 May 2024

April Week # 3 Expire on 14 May 2024

April Week # 4 Expire on 21 May 2024

March Week # 3 Quiz 5

Q1. When a 440/220V transformer is connected to 400 V D.C. supply

Q2. _________ increases the steady state accuracy.

Q3. According to Gujarat Electricity Regulatory Commission, the voltages at the point of commencement of supply to a consumer with reference to the declared voltage should be within the limits,

Q4. For a frequency of 200 Hz the time period will be

Q5. Air gap in the iron core prevents

Q6. For a linear electromagnetic circuit the following statement is true.

Q7. The direction of magnetic field, according to Fleming's right hand rule is indicated by_________.

Q8. Calculate the Zener impedance if the change in Zener voltage is 100 mV for a 20 mA change in Zener current on the linear portion of the characteristic curve.

Q9. Find the current through the resistor and the capacitor for the circuit shown in Fig. The switch is closed at t = 0 and initial change in the capacitor is zero.

Q10. The buffer used in an operational amplifier is usually:

Record & Track Your Performance

March
Week # 3 Quiz 5