CONTROL SYSTEM SET 05

CONTROL SYSTEM SET 05

1. Which of the following is the input to a controller?
(a) Servo signal
(b) Desired variable value
(c) Error signal
(d) Sensed signal
 

Ans: c
 

2. The on-off controller is a _____ system.
(a) digital
(b) linear
(c) non-linear
(d) discontinuous
 

Ans: d
 

3. The capacitance, in force-current analogy, is analogous to
(a) momentum
(b) velocity
(c) displacement
(d) mass
 

Ans: d
 

4. The temperature, under thermal and electrical system analogy, is considered analogous to
(a) voltage
(b) current
(c) capacitance
(d) charge
(e) none of the above
 

Ans: a
 

5. In electrical-pneumatic system analogy the current is considered analogous to
(a) velocity
(b) pressure
(c) air flow
(d) air flow rate
 

Ans: d
 

6. In liquid level and electrical system analogy, voltage is considered analogous to
(a) Head
(b) liquid flow
(c) liquid flow rate
(d) none of the above
 

Ans: a
 

7. The viscous friction co-efficient, in force-voltage analogy, is analogous to
(a) Charge
(b) resistance
(c) reciprocal of inductance
(d) reciprocal of conductance
(e) none of the above
 

Ans: b
 

8. In force-voltage analogy, velocity is analogous to
(a) current
(b) charge
(c) inductance
(d) capacitance
 

Ans: a
 

9. In thermal-electrical analogy charge is considered analogous to
(a) heat flow
(b) reciprocal of heat flow
(c) reciprocal of temperature
(d) temperature
(e) none of the above
 

Ans: d
 

10. Mass, in force-voltage analogy, is analogous to
(a) charge
(b) current
(c) inductance
(d) resistance
 

Ans: c