Marine Control Engineering and Automation Question Bank

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to the Marine Control Engineering & Automation. it is very important to practice
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Questions related to Marine control engineering & automation

1) Define
following:

Process control system, Set value, connected command signal,
Deviation, signal processing.

2) Discuss the
advantage & disadvantage of close loop over open loop system of

process control.

3) Sketch the
proportional & integral control system mechanical type for maintaining

the level of water
in a tank

4) Explain different response of a servo
mechanism.

5) Draw the feedback system of
Ward-Leonard arrangement for controlling the speed of a motor and explain the
mode of operation.

6) Compare advantage & disadvantage of
effect of adding integral action in a remote position control servomechanism.

7) Sketch & explain the harmonic response
(Nyquised) diagram for frequency response test on a stable system and what is
critically stable system.

8) A step change of 2.5% is applied to
the input of a P + I controller and output gives a sudden step change of 5% and
after 2 minutes the total output change is 12.5%, Find proportional bandwidth
and integral action time?

9) Sketch & explain in brief different
type of pneumatic controllers.

10) Sketch and describe the boiler feed water
controlling pneumatic system.

11) Sketch a compressed air system for use with
pneumatic control system.

12) Sketch and describe an oil mist detector, state
how sampling in controlled.

13) Explain & sketch a voltmeter & an
Ammeter & wattmeter

14) What are different methods of damping a
voltage, inductance, capacitance electronic measuring instruments?

15) Explain and sketch a block diagram of CRO
& explain its working?

16) Define following:

Control
system, desired value, input element, converted deviation measuring element.

Sketch &
describe the open loop & close loop system of process control.

18 ) Sketch and
describe the proportional & derivation control (mechanical type) for
maintaining level of water in a tank.

19) What is the technique of improving of the
general performance of servo mechanism?

20) Draw a circuit diagram for a system with
ward-Leonard arrangement where feedback control arrangement is used to regulate
the speed of D.C. Motor.

21) Compare advantage & disadvantage of
following methods of damping a servo

Mechanism
viscous friction, output velocity feedback.

22) Sketch harmonic response (Nyquist) diagram
for frequency response test on an unstable system.

23) A ramp change of 1% linearly is applied to
the input of a P + D controller and output gives a sudden step change of 5% and
after this output changes linearly at 3% per minute. Determine proportional
bandwidth and derivative action time?

24) What is the advantage/ disadvantage of analog
over digital computing?

25) Sketch and describe a master controller
operation for any variation of pressure in a boiler for regulating the air
& fuel supply to the furnace by pneumatic controller.

26) Describe & sketch how the inlet
temperature of lubricating oil to main engine may be automatically monitored
and controlled?

27) Describe bridge/ engine room telegraph
interconnecting gear? How wrong way bell is connected?

28) Sketch & explain automatic voltage
regulator.

29) What are different damping techniques of
damping electrical, electronic and pressure measuring instruments?

30) Explain the method of measuring
resistance, Inductance and capacitance