Marine Electrotechnology. Test 8

The characteristics shown here indicate a ramp input on the left together with the corresponding output on the right of _____

a pure differentiator.
a pure integrator.
a proportional integrating controller.
a proportional controller.

For this PID controller to act only as a P (proportional) controller, what should be the arrangement of restricting valves R1 and R2 ?

R1 closed, R2 fully open
R1 fully open, R2 closed
R1 closed, R2 closed
R1 fully open, R2 fully open

Fitting a restriction R1 in the supply to the proportional feedback of this PID controller ensures that for an initial small variation on the input, the initial response on the output will be _____

strong.
zero.
very weak.
proportional.

For which control instrument are these the input (left) and the output or response (right) characteristics ?

A pressure differentiator.
A pneumatic differentiating controller.
A proportional differentiating controller.
A pressure controlling data register.

For which type of controller are the input and output characteristics shown here ?

A proportional integrating controller.
A pressure indicating controller.
A pneumatic indicating controller.
A PI differentiating controller.

In the output characteristics (right) of this controller, which response lines are clearly shown ?

The proportional, variation and integration.
The output, variation and differentiation.
The proportional output, offset and integration.
The proportional, integration and differentiation.

The pick up and the time settings of reverse power relays are adjustable. If the prime mover of the alternator is a steam turbine what is the trip level setting ?

0.5 - 1 %
6 - 7 %
4 - 6 %
2 - 3 %

For which kind of controller are the input and output characteristics shown here ?

A pneumatic differential summator
A pressure indicating controller
A proportional indicating differentiator
A proportional integrating-differentiating controller

Review Answers

Marine Electrotechnology. Test 8

Ads Blocker Detected :(