Q1. The voltage, in force-current analogy, is analogous to
(A) momentum
(B) velocity
(C) displacement
(D) mass
Answer: velocity
Explanation: In force-current analogy, the analogous quantities in mechanical transJational and electrical systems are Force (F)-Current (i), Mass (M)-Capacitance (C), Friction (f)Reciprocal of resistance (1IR), Spring constant (K)-Reciprocal of inductance (IlL), Displacement (x)-Flux linkage (¢), Velocity (v)-Voltage (e).
Q2. The second derivative input signals modify which of the following?
(A) The time constant of the system
(B) Damping of the system
(C) The gain of the system
(D) The time constant and suppress the oscillations
Answer: The time constant and suppress the oscillations
Explanation:
Q3. The transient response, with feedback system,
(A) rises slowly
(B) rises quickly
(C) decays slowly
(D) decays quickly
Answer: decays quickly
Explanation:
Q4. On which of the following factors does the sensitivity of a closed loop system to gain changes and load disturbances depend ?
(A) Frequency
(B) Loop gain
(C) Forward gain
(D) All of the above
Answer: All of the above
Explanation:
Q5. Transfer function of a system is used to calculate which of the following ?
(A) The order of the system
(B) The time constant
(C) The output for any given input
(D) The steady state gain
Answer: The output for any given input
Explanation:
Q6. The transfer function of a rate controller is of the type
(A) Kc
(B) Ts
(C) 1/Ts
(D) 1/(Ts+1)
Answer: Ts
Explanation:
Q7. The transfer function of a proportional controller is of the type
(A) Kc
(B) Ts
(C) 1/Ts
(D) 1/(Ts+1)
Answer: Kc
Explanation:
Q8. Zero initial condition for a system means
(A) input reference signal is zero
(B) zero stored energy
(C) ne initial movement of moving parts
(D) system is at rest and no energy is stored in any of its components
Answer: system is at rest and no energy is stored in any of its components
Explanation:
Q9. A control system with excessive noise, is likely to suffer from
(A) saturation in amplifying stages
(B) loss of gain
(C) vibrations
(D) oscillations
Answer: saturation in amplifying stages
Explanation:
Q10. Which of the following is an open loop control system.
(A) Ward Leonard control
(B) Field controlled D.C. motor
(C) Stroboscope
(D) Metadyne
Answer: Field controlled D.C. motor
Explanation:
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