Govt Exams Mock Test FREE | Online Quiz Competition

Q1. According to Hurwitz criteria, a control system having \(4^{th}\) order characteristic equation can be considered stable if

Only fourth determinant is zero

All four determinants are positive and negative alternative

All four determinants are of same sign

All four determinants are zero

Q2. Which of the following statements is correct for any closed loop system ?

All the co-efficients can have zero value

All the co-efficients are always non-zero

Only one of the static error co-efficients has a finite non-zero value

None of the above

Q3. Which of the following can be measured by LVDT?

Displacement

Velocity

Acceleration

Any of the above

Q4. If a system is given unbounded input then the system is:

Stable

Unstable

Not defined

Linear

Q5. ___________ is a quantitative measure of how fast the transients die out in the system.

Absolutely stable

Conditionally stable

Unstable

Relative Stability

Q6. A phase lag lead network introduces in the output

lag at all frequencies

lag at high frequencies and lead at low frequencies

lag at low frequencies and lead at high frequencies

none of the above

Q7. The region in the complex plane where the poles of a stable control system must lie is called:

Right-half plane (RHP)

Left-half plane (LHP)

Imaginary axis

Unit circle

Q8. Pressure error can be measured by which of the following ?

Differential bellows and straingauge

Selsyn

Strain gauge

Strain gauge and potentiometer

Q9. An AC induction motor is used for a speed control application. It is driven from an inverter with a constant V/f control. The motor name plate details are as follows: V= 415V, 3-phase, f=50 Hz, N = 2850 rpm The motor is run with the inverter output frequency set at 40 Hz, and with half the rated slip. The running speed of the motor is

2400 rpm

2280 rpm

2340 rpm

2790 rpm

Q10. A 3000/300 V single phase transformer takes 0.8 A at power factor of 0.4 on open circuit. Find the core loss resistance

937.5 ohm

947.5 ohm

537.5 ohm

815.5 ohm

Quiz

Year 2024

June
Week # 1 Quiz 5

Q1. According to Hurwitz criteria, a control system having \(4^{th}\) order characteristic equation can be considered stable if

Q2. Which of the following statements is correct for any closed loop system ?

Q3. Which of the following can be measured by LVDT?

Q4. If a system is given unbounded input then the system is:

Q5. ___________ is a quantitative measure of how fast the transients die out in the system.

Q6. A phase lag lead network introduces in the output

Q7. The region in the complex plane where the poles of a stable control system must lie is called:

Q8. Pressure error can be measured by which of the following ?

Q10. A 3000/300 V single phase transformer takes 0.8 A at power factor of 0.4 on open circuit. Find the core loss resistance

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

June Week # 1 Quiz 5

Q1. According to Hurwitz criteria, a control system having \(4^{th}\) order characteristic equation can be considered stable if

Q2. Which of the following statements is correct for any closed loop system ?

Q3. Which of the following can be measured by LVDT?

Q4. If a system is given unbounded input then the system is:

Q5. ___________ is a quantitative measure of how fast the transients die out in the system.

Q6. A phase lag lead network introduces in the output

Q7. The region in the complex plane where the poles of a stable control system must lie is called:

Q8. Pressure error can be measured by which of the following ?

Q10. A 3000/300 V single phase transformer takes 0.8 A at power factor of 0.4 on open circuit. Find the core loss resistance

Record & Track Your Performance

June
Week # 1 Quiz 5