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Q1. The system on which digital system usually operates is

Decimal

Octal

Hexadecimal

binary

Q2. In a series circuit which includes \(R = 2.4\: \Omega ,\: L = 25\: \mu H\), capacitor C and a thyristor for obtaining self commutation in the circuit, the value of capacitor should be

\(20 \:\mu F\)

\(30 \:\mu F\)

\(25 \:\mu F\)

\(10 \:\mu F\)

Q3. A dc voltage source of is supplying R-L load through an SCR with pulse width of \(100 \mu s\). Latching current of SCR is 100 mA in case load consists of R = 20 \(\Omega\) in series with L = 0.5 H.

250 V

100 V

150 V

200 V

Q4. A 300 A thyristor is to be operated in parallel with a 400 A thyristor. The ON state voltage drops are 1.6 V and 1.4 Volts. What is the value of resistance R to be connected in series with each thyristor, so that current through the combination is 700 A and each of them is fully loaded ?

\(3\:m\Omega\)

\(2\:m\Omega\)

\(2\:k\Omega\)

\(3\:k\Omega\)

Q5. A single phase one pulse controlled circuit has a resistance R and counter emf E as load and 500 sin(314 t) as the source voltage. For a load counter emf of 250 V, the range of firing angle control is

30° to 150°

30° to 180°

60° to 120°

60° to 180°

Q6. A thyristor has thermal resistance is 1.8 °C/W and the maximum allowable internal power dissipation is 50 W. If the ambient temperature is 40 °C, the maximum allowable Junction temperature is

110 °C

130 °C

50 °C

90 °C

Q7. The figure shown above represents construction of which of the following?

Diode

Transistor

MOSFET

SCR

Q8. In DC chopper, the waveform for input and output voltages are respectively

Both discontinuous

Both continuous

Continuous, discontinuous

Discontinuous, continuous

Q9. The effective channel length of a MOSFET in a saturation decreases with increase in

gate voltage

drain voltage

source voltage

body voltage

Q10. MOSFET can be used as a _______.

Current controlled capacitor

Voltage controlled inductor

Voltage controlled capacitor

Current controlled inductor

Quiz

Year 2024

December
Week # 4 Quiz 1

Q1. The system on which digital system usually operates is

Q2. In a series circuit which includes \(R = 2.4\: \Omega ,\: L = 25\: \mu H\), capacitor C and a thyristor for obtaining self commutation in the circuit, the value of capacitor should be

Q3. A dc voltage source of is supplying R-L load through an SCR with pulse width of \(100 \mu s\). Latching current of SCR is 100 mA in case load consists of R = 20 \(\Omega\) in series with L = 0.5 H.

Q4. A 300 A thyristor is to be operated in parallel with a 400 A thyristor. The ON state voltage drops are 1.6 V and 1.4 Volts. What is the value of resistance R to be connected in series with each thyristor, so that current through the combination is 700 A and each of them is fully loaded ?

Q5. A single phase one pulse controlled circuit has a resistance R and counter emf E as load and 500 sin(314 t) as the source voltage. For a load counter emf of 250 V, the range of firing angle control is

Q6. A thyristor has thermal resistance is 1.8 °C/W and the maximum allowable internal power dissipation is 50 W. If the ambient temperature is 40 °C, the maximum allowable Junction temperature is

Q7. The figure shown above represents construction of which of the following?

Q8. In DC chopper, the waveform for input and output voltages are respectively

Q9. The effective channel length of a MOSFET in a saturation decreases with increase in

Q10. MOSFET can be used as a _______.

Quiz

Year 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 # 4 Expire on 21 Jan 2025

December Week # 4 Quiz 1

Q1. The system on which digital system usually operates is

Q2. In a series circuit which includes \(R = 2.4\: \Omega ,\: L = 25\: \mu H\), capacitor C and a thyristor for obtaining self commutation in the circuit, the value of capacitor should be

Q3. A dc voltage source of is supplying R-L load through an SCR with pulse width of \(100 \mu s\). Latching current of SCR is 100 mA in case load consists of R = 20 \(\Omega\) in series with L = 0.5 H.

Q4. A 300 A thyristor is to be operated in parallel with a 400 A thyristor. The ON state voltage drops are 1.6 V and 1.4 Volts. What is the value of resistance R to be connected in series with each thyristor, so that current through the combination is 700 A and each of them is fully loaded ?

Q5. A single phase one pulse controlled circuit has a resistance R and counter emf E as load and 500 sin(314 t) as the source voltage. For a load counter emf of 250 V, the range of firing angle control is

Q6. A thyristor has thermal resistance is 1.8 °C/W and the maximum allowable internal power dissipation is 50 W. If the ambient temperature is 40 °C, the maximum allowable Junction temperature is

Q7. The figure shown above represents construction of which of the following?

Q8. In DC chopper, the waveform for input and output voltages are respectively

Q9. The effective channel length of a MOSFET in a saturation decreases with increase in

Q10. MOSFET can be used as a _______.

Record & Track Your Performance

December
Week # 4 Quiz 1