Govt Exams Mock Test FREE | Online Quiz Competition

Q1. The transient response, with feedback system,

rises slowly

rises quickly

decays slowly

decays quickly

Q2. The output of the feedback control system must be a function of ____________

Output and feedback signal

Input and feedback signal

Reference input

Reference output

Q3. The second derivative input signals modify which of the following ?

The time constant of the system

Damping of the system

The gain of the system

The time constant and suppress the oscillations

Q4. The concept of "gain margin" in control systems refers to:

The range of allowable controller gains for stability

The difference between the system's natural frequency and its actual frequency

The ratio of the system's output to its input for high frequencies

The slope of the Nyquist plot at the critical point (-1, j0)

Q5. Open Loop transfer function of a system is \(G(s)\). If a negative unity feedback is added to the system. Its transfer function will be

\(\frac{G(s)}{(1-G(s))}\)

\(\frac{G(s)}{(1+G(s))}\)

\((G(s)+1)\)

\((G(s)-1)\)

Q6. In State space representation, an \(N^{th}\) order differential equation can be represented with _equations each of order.

N, N

1, 1

1, 2N

N, 1

Q7. The disadvantages of the linear system are:

The constraints on the linear operation over wide range demands unnecessarily high quality.

The restriction to the linear theory may inhibit the designer’s curiosity to deliberately introduce the non-linear components.

Practically systems are non-linear

All of the mentioned

Q8. By which of the following the system response can be tested better ?

Ramp input signal

Sinusoidal input signal

Unit impulse input signal

Exponentially decaying signal

Q9. The rotor of a four-pole, 50 Hz slip-ring induction motor has a resistance of \(0.2\:\Omega\) per phase and runs at 1425 rpm at full-load. Determine the external resistance per phase which must be added to reduce the speed to 1200 rpm, the torque remaining same in both the cases.

\(0.8\:\Omega\)

\(0.2\:\Omega\)

\(0.4\:\Omega\)

\(0.6\:\Omega\)

Q10. A 200/400 V, 20 kVA, 2-winding transformer is connected as an auto-transformer to transform 600 V to 200 V. Calculate the KVA rating of the auto-transformer.

30 kVA

25 kVA

60 kVA

50 kVA

Quiz

Year 2024

December
Week # 1 Quiz 5

Q1. The transient response, with feedback system,

Q2. The output of the feedback control system must be a function of ____________

Q3. The second derivative input signals modify which of the following ?

Q4. The concept of "gain margin" in control systems refers to:

Q5. Open Loop transfer function of a system is \(G(s)\). If a negative unity feedback is added to the system. Its transfer function will be

Q6. In State space representation, an \(N^{th}\) order differential equation can be represented with _equations each of order.

Q7. The disadvantages of the linear system are:

Q8. By which of the following the system response can be tested better ?

Q9. The rotor of a four-pole, 50 Hz slip-ring induction motor has a resistance of \(0.2\:\Omega\) per phase and runs at 1425 rpm at full-load. Determine the external resistance per phase which must be added to reduce the speed to 1200 rpm, the torque remaining same in both the cases.

Q10. A 200/400 V, 20 kVA, 2-winding transformer is connected as an auto-transformer to transform 600 V to 200 V. Calculate the KVA rating of the auto-transformer.

Quiz

Year 2024

July Week # 1 Expire on 31 Jul 2024

July Week # 2 Expire on 07 Aug 2024

July Week # 3 Expire on 14 Aug 2024

July Week # 4 Expire on 21 Aug 2024

December Week # 1 Quiz 5

Q1. The transient response, with feedback system,

Q2. The output of the feedback control system must be a function of ____________

Q3. The second derivative input signals modify which of the following ?

Q4. The concept of "gain margin" in control systems refers to:

Q5. Open Loop transfer function of a system is \(G(s)\). If a negative unity feedback is added to the system. Its transfer function will be

Q6. In State space representation, an \(N^{th}\) order differential equation can be represented with _____equations each of ____ order.

Q7. The disadvantages of the linear system are:

Q8. By which of the following the system response can be tested better ?

Q9. The rotor of a four-pole, 50 Hz slip-ring induction motor has a resistance of \(0.2\:\Omega\) per phase and runs at 1425 rpm at full-load. Determine the external resistance per phase which must be added to reduce the speed to 1200 rpm, the torque remaining same in both the cases.

Q10. A 200/400 V, 20 kVA, 2-winding transformer is connected as an auto-transformer to transform 600 V to 200 V. Calculate the KVA rating of the auto-transformer.

Record & Track Your Performance

December
Week # 1 Quiz 5

Q6. In State space representation, an \(N^{th}\) order differential equation can be represented with _equations each of order.