WorksheetsIntermediate ME knowledge check
Total questions: 15
Worksheet time: 8mins
Who is responsible for your safety awareness in your Unit?
The Commanding officer
You
Your Instructor
The Captain
Which one of the following is a true statement:
Machinery can be operated safely without guarding
Equipment may not need to be maintained as set out in the manufacturer’s handbook
Electrical Equipment should always be disconnected from the supply and made safe before work takes place
Unprotected rotating shafts are not usually dangerous
The 4 –stroke cycle is:
Power Compression Exhaust Induction
Induction Power Compression Exhaust
Exhaust Compression Power Induction
Induction Compression Power Exhaust
Why are superchargers sometimes fitted to engines?
To reduce the amount of smoke produced
To allow the engine to develop more power
To reduce fuel consumption
To allow the engine to run more smoothly
The main advantage of using an exhaust gas turbocharger is:
Smaller and takes less space
Is the most powerful type of supercharger
Uses waste heat (energy) from the exhaust gas to drive it
Reduces the amount of exhaust gas produced by the engine
The fuel injector injects fuel into the cylinder as a:
Jet
Spray
Fine Mist
Droplet
Governors are fitted to diesel engines to:
Control fuel consumption
Control engine speed
Control engine temperature
Control oil pressure
Ethylene Glycol is used for what purpose in a diesel engine?
To allow the oil to lubricate the engine more easily
To prevent water freezing in low temperatures
To give better cooling to the engine when it is warm
To reduce fuel consumption
A Thermostat is a device which controls and maintains:
Pressure
Speed
Temperature
Humidity
When would you expect an unusually oil high pressure?
When the engine is running at idle speed
When the engine is running at full speed
When the engine is first started from cold
When the engine has been running for some time
A clutch is fitted small motor boat diesel engines to:
Allow the drive train to be disengaged without stopping the engine
Reduce the load on the engine starter motor when starting the engine
Make it easier to change gear
Allow the engine to stop correctly
What special devices may be fitted to reduce high compression pressures when hand starting a small diesel engine?
Automatic compression pressure relief valves
Gear drive to reduce the speed the engine can be turned over at
Decompression levers
Easy start spray valves
Planned Maintenance is required on most engines to ensure that:
The Unit’s engineers are kept busy
The engine will be reliable
Training can be realistic
Engine manufacturers sell more spare parts
The tension in an alternator drive belt is checked where?
The longest length of belt
The shortest length of belt
At the pivot point
At the drive pulley
A good electrical connection needs to be:
Low in resistance, mechanically sound and provide good support for the conductor
High in resistance, mechanically sound and provide good support for the conductor
Low in resistance, mechanically sound and provide no support for the conductor
High in resistance, mechanically sound and provide no support for the conductor
