Answers to CES test about Digital Governor System (AC4)

This page contains answers to Seagull CES test about Digital Governor System (AutoChief 4), and serve as a database of questions and answers, using which seafarer can prepare to exams for getting certificate of competence, or just to challenge yourself with knowledge in this theme.

Use the search below to find question.

Amount of questions: 8.

Right answers marked with this sign .

Which of the factors does not cause governor limits to be changed during service?

Fuel Oil Quality Variations.

Wear of Fuel Pumps.

Hull Fouling.

Engine Room temperatures.

The RPM Command function does not do which of the following:

Commanding Input signal from remote control system or control room lever.

Control Engine Acceleration or deceleration.

Manual setting of fuel supply reference and speed setting reference.

Critical Speed Discrimination.

The RPM reference values are:

Computed manually by operator.

Computed only for some Engine Running Conditions.

Computed for all Engine Running Conditions.

Stored in memory for later use.

The Servomotor of the fuel actuator has a brake, which acts to keep fuel lever in:

Current position.

New position.

Non fail safe position.

Mid position.

What are the Actuator main functions?

Limiting speed of fuel-rack.

Displaying Data Values.

Sense the actuator position command from the Regulator.

Repeated testing of System Failures.

Positioning the actuator (and fuel-rack) according to commanded value.

Output for fuel-rack (actuator) indication (option).

What are the Regulator main functions?

Speed Reference Computation.

Speed Measurement and Filtering.

Displaying Data Values.

Off-line Testing.

Programming user-dependent parameters.

Output and limit the command signal to the fuel actuating function.

Which Data is Adjustable?

RPM Command.

Measured RPM.

Scav. Air Pressure.

RPM Limiter level.

Which Data is Readable?

Dead Band.

Fuel Limiter level.

RPM limiter level.

Scavenge Air Pressure.