Govt Exams Mock Test FREE | Online Quiz Competition

Q1. What is the Nyquist rate for the signal \(x (t) = \ cos 2000 \pi t\) ?

2kHz

4kHz

12kHz

6kHz

Q2. With feed back _____ reduces.

system stability

system gain

system stability and gain

none of the above

Q3. The capacitance, in force-current analogy, is analogous to

momentum

velocity

displacement

mass

Q4. Which of the following option is correct about Signal flow graphs?

They apply to linear systems

Arrows are not important in the graph

They cannot be converted back to block diagram

None of the above

Q5. With feedback system,

the transient response get magnified

the transient response decays more quickly

the transient response decays at a constant rate

the transient response decays slowly

Q6. An amplidyne can give which of the following characteristics ?

Constant current

Constant voltage

Constant current as well as constant voltage

Constant current, constant voltage and constant power

Q7. In a stable control system backlash can cause which of the following?

Overdamping

Low-level oscillations

Underdamping

Poor stability at reduced values of open loop gain

Q8. Consider a transfer function \(G(s)=\frac{100}{s(s+10)}\). The Bode plot of \(G(s)\) consists of:

A constant magnitude plot and a linear phase plot

A linear magnitude plot and a constant phase plot

A constant magnitude plot and a constant phase plot

A linear magnitude plot and a linear phase plot

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. For starting of an induction motor, star/delta starting can be considered equivalent to an auto transformer starter with the ratio of_________.

1

0.25

0.577

0.75

Quiz

Year 2025

March
Week # 1 Quiz 5

Q1. What is the Nyquist rate for the signal \(x (t) = \ cos 2000 \pi t\) ?

Q2. With feed back _____ reduces.

Q3. The capacitance, in force-current analogy, is analogous to

Q4. Which of the following option is correct about Signal flow graphs?

Q5. With feedback system,

Q6. An amplidyne can give which of the following characteristics ?

Q7. In a stable control system backlash can cause which of the following?

Q8. Consider a transfer function \(G(s)=\frac{100}{s(s+10)}\). The Bode plot of \(G(s)\) consists of:

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. For starting of an induction motor, star/delta starting can be considered equivalent to an auto transformer starter with the ratio of_________.

Quiz

Year 2025

February Week # 3 Expire on 14 Mar 2025

February Week # 4 Expire on 21 Mar 2025

March Week # 1 Expire on 31 Mar 2025

March Week # 2 Expire on 07 Apr 2025

March Week # 1 Quiz 5

Q1. What is the Nyquist rate for the signal \(x (t) = \ cos 2000 \pi t\) ?

Q2. With feed back _____ reduces.

Q3. The capacitance, in force-current analogy, is analogous to

Q4. Which of the following option is correct about Signal flow graphs?

Q5. With feedback system,

Q6. An amplidyne can give which of the following characteristics ?

Q7. In a stable control system backlash can cause which of the following?

Q8. Consider a transfer function \(G(s)=\frac{100}{s(s+10)}\)​. The Bode plot of \(G(s)\) consists of:

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. For starting of an induction motor, star/delta starting can be considered equivalent to an auto transformer starter with the ratio of_________.

Record & Track Your Performance

March
Week # 1 Quiz 5

Q8. Consider a transfer function \(G(s)=\frac{100}{s(s+10)}\). The Bode plot of \(G(s)\) consists of: