WorksheetsCertified Plant Mechanic Exam
Total questions: 10
Worksheet time: 5mins
What is the function of a governor in a diesel engine generator set?
Control fuel injection
Regulate engine speed
Reduce vibration
Increase combustion efficiency
The air used for combustion in a diesel engine is supplied by:
Intercooler
Turbocharger
Exhaust manifold
Radiator
In a diesel electric power plant, the alternator is directly connected to:
Fuel pump
Cooling fan
Diesel engine crankshaft
Battery bank
Which of the following is used to cool the diesel engine?
Air only
Lubricating oil
Water or coolant
Hydrogen
The load sharing in parallel operation of diesel generator sets is achieved by adjusting the:
Frequency and voltage
Cooling water
Exhaust manifold
Starter battery
What does the AVR (Automatic Voltage Regulator) do in a diesel generator?
Controls engine speed
Controls battery voltage
Maintains constant voltage output
Adjusts oil pressure
A high exhaust gas temperature may indicate:
Overcooling of the engine
Low fuel supply
Poor combustion
High oil pressure
The primary function of lubricating oil in a diesel engine is to:
Cool the generator
Provide insulation
Reduce friction and wear
Increase fuel efficiency
What type of starting system is commonly used in small diesel generators?
Compressed air starting
Hydraulic starting
Battery electric starting
Manual crank starting
Which of the following is a major safety concern in diesel electric power plants?
Generator synchronization
Engine misalignment
Fuel leakage
Load imbalance
