VT- Diesel Engine Fundamentals (Part1)
V2 (Copy)
This training provides the foundations for the Diesel Engines for new comers or a refresher course for
the more experienced participants.
* Required
1. ARCHITECTURE & BASICS - Who has invented the diesel engine? *
(2 Points)
Rudolf DIESEL
Henry FORD
Karl BENZ
Adam OPEL
2. ARCHITECTURE & BASICS - What did Rudolf DIESEL call his new engine? *
(2 Points)
Combustion power engine
Rotary engine
Non-gasoline engine
Hydro engine
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3. ARCHITECTURE & BASICS - The diesel engines are also known as : *
(2 Points)
Spark Ignition (S.I.) engines
Compression Ignition (C.I.) engines
Steam engines
None of these
4. ARCHITECTURE & BASICS - In a 4-stroke engine , for each crankshaft revolution, the
camshaft revolves... *
(2 Points)
One half turn
One turn
Two turns
Four turns
5. ARCHITECTURE & BASICS - In 4 stroke engine one cycle completes in one revolution of
crankshaft *
(2 Points)
True
False
6. ARCHITECTURE & BASICS - The diesel engine works on *
(2 Points)
OTTO Cycle
CARNOT Cycle
DIESEL Cycle
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7. ARCHITECTURE & BASICS - What are the main elements of combustion in diesel
engine? *
(2 Points)
Fuel
Heat
Oxygen
All of the above
8. ARCHITECTURE & BASICS - A diesel engine converts chemical energy to mechanical
energy? *
(2 Points)
True
False
9. ARCHITECTURE & BASICS - In a 4-Stroke cycle engine, the sequence of operations is *
(2 Points)
Suction, compression, power and exhaust
Suction , power, compression and exhaust
power, compression, suction and exhaust
Compression, power, suction and exhaust
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10. ARCHITECTURE & BASICS - The size of engine cylinder is referred in terms of its *
(2 Points)
Diameter and bore
Displacement and efficiency
Bore and stroke
Bore and lengh
11. ARCHITECTURE & BASICS - In given below statements which is correct regarding
compression ratio *
(2 Points)
Naturally aspirated engines have less compression ratio thant turbocharged engines
Turbocharged engines have more compression ratio than natural aspirated engines
Both A & B are correct
Turbocharged engines have less compression ratio than naturally aspirated engines
12. ARCHITECTURE & BASICS - The connecting rod connects the piston and the *
(2 Points)
Cylinder head
Cylinder block
Camshaft
Crankshaft
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13. ARCHITECTURE & BASICS - The stroke of an engine is the *
(2 Points)
Volume of the cylinder
Lengh of the connecting rod
internal diameter of the cylinder
Distance between TDC and BDC
14. ARCHITECTURE & BASICS - in diesel engines, during suction stroke, .......... is drawn in the
cylinder *
(2 Points)
Air and Fuel
Only Fuel
Only AIR
None of these
15. ARCHITECTURE & BASICS, the majority of the diesel engines used at KOHLER are Direct
Injection type - except FOCS engine models? *
(2 Points)
False
True
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16. ARCHITECTURE & BASICS - The skelton of the engine, to which the other engine parts
are attached or assembled is the *
(2 Points)
Cylinder head
Crankshaft
Cylinder block
Oil pan
17. ARCHITECTURE & BASICS - In a 4 cylinder inline engine, the number of firing strokes in
one revolution of the crank is *
(2 Points)
18. ARCHITECTURE & BASICS - the working cycle in case of 4 stroke engine is completed in
....... number of revolutions of crankshaft *
(2 Points)
1/2
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19. ARCHITECTURE & BASICS - number or working strokes per min for a four stroke cycle
engine are ... the engine speed in RPM *
(2 Points)
Equal to
One-half
Twice
Four-times
20. ARCHITECTURE & BASICS - What is the full form of BMEP? *
(2 Points)
Brake Mean Effective Pressure
Break Mean Effective Pressure
Brake Mean Efficiency Pressure
Brake Main Effective Pressure
21. ARCHITECTURE & BASICS - In 2 Stroke cycle engine, camshaft and crankshaft rotate in
the ration of ... *
(2 Points)
1:2 ratio
1:3 ratio
1:1 ratio
2:1 ration
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22. ARCHITECTURE & BASICS - Volumetric efficiency in turbocharged engine is less than
naturally aspirated engine *
(2 Points)
True
False
23. ARCHITECTURE & BASICS - Most common used firing order of 6 cylinders engine *
(2 Points)
1-2-3-4-5-6
1-2-3-5-4-6
1-5-3-6-2-4
6-5-4-3-2-1
24. AIR/EXHAUST SYSTEM - the main function of intake manifold is that it *
(2 Points)
Promotes the mixture of air and fuel
Reduces intake noise
Cools the intake air to a suitable temperature
Distributes intake air equally to the cylinders
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25. AIR/EXHAUST SYSTEM - In a turbocharged diesel engine, what drives the turbocharger?
*
(2 Points)
Battery
Fan belt
Exhaust gases
glow plugs
26. AIR/EXHAUST SYSTEM - During the four-stroke cycle of a diesel engine, the inlet and
outlet valve will be _______ on the combustion stroke. *
(2 Points)
Opened
Closed
Inlet Open, Outlet closed
Inlet closed , outlet open
27. AIR/EXHAUST SYSTEM - For a diesel engine to run perfectly, what are two essential
requirements? *
(2 Points)
Air and Fuel
Battery and Fuel
Glow plug and Fuel
Air and Water
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28. AIR/EXHAUST SYSTEM - What is the full form of EGR? *
(2 Points)
Exhaust Gas Recirculation
Emission Gas Regulation
Exhaust Gas Regulation
None of the above
29. AIR/EXHAUST SYSTEM - The purpose of Wastegate used in Turbocharger is to control
excessive boost pressure and to control the speed of turbocharger? *
(2 Points)
True
False
30. COOLING SYSTEM - The component in the radiator of an engine that increases the
boiling point of water is *
(2 Points)
Drain plug
Water jacket
Vaccum valve
Pressure cap
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31. COOLING SYSTEM - The commonly used antifreeze solution in diesel engine is *
(2 Points)
carbon disulphide
Ethylene Glycol
Ammonium chloride
Freon-12
32. COOLING SYSTEM - Which of the following statements is true about coolant? *
(2 Points)
Coolant and antifreeze are the same thing
Only ethylene glycol based coolant requires specific disposal requirements
The ideal product is a pre-mixted coolant otherwise the ideal mixture for most climates is
50/50
The coolant can only be tested by specific gravity
33. COOLING SYSTEM - What is the purpose of a thermostat? *
(2 Points)
Prevent the coolant from boiling
Allow the engine to warm up quicky
Indicate the collant temperature
Pressurise the system to raise the boiling point
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34. COOLING SYSTEM - The function of a radiator fan in the cooling system is that *
(2 Points)
It blows air through the radiator when necessary
It is turned by wind force as the vehicle moves forward, and its rotation drives the water pump
It cools the engine by blowing air onto the cylinder block
It draws heat out of the engine compartment
35. LUBRICATION SYSTEM - The forced fed lubrication system means that the oil is
delivered to the engine by *
(2 Points)
Gravity
The pressure created by the oil pump
Splashing action of the crankshaft
None of these
36. LUBRICATION SYSTEM - The engine oil viscosity is defined by ___________ ratings. *
(2 Points)
Automatic transmission fluid (ATF)
Society of automotive engineers (SAE)
Gross vehicle weight (GVW)
American petroleum institute (API)
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37. LUBRICATION SYSTEM - Which of the following oil is more viscous? *
(2 Points)
SAE 30
SAE 40
SAE 70
SAE 80
38. LUBRICATION SYSTEM - Which of the following indicates multigrade oil? *
(2 Points)
SAE 30
API SF
SAE 20 W50
API 50
39. LUBRICATION SYSTEM - An oil filter by-pass valve opens when the... *
(2 Points)
Engine is cold
Engine overheats
Oil filter becomes clogged
Engine runs at high speed
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40. LUBRICATION SYSTEM - What are the functions of the lubrication system (select all
possible answers) *
(2 Points)
Cooling
Lubricating
Cleaning
Increasing engine efficiency
41. What does CCV mean? *
(2 Points)
Close camshaft ventilation
Close crankcase ventilation
Clean crankcase ventilation
Clean closed ventilation
42. LUBRICATION SYSTEM - The oil pump is driven by *
(2 Points)
Camshaft
Alternator shaft
Crankshaft via drive belt
Crankshaft directly
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43. LUBRICATION SYSTEM - What are the most common contaminants? *
(2 Points)
Coolant and water
Fuel and coolant
Dirt and water
44. LUBRICATION SYSTEM - When performing an oil and oil filter change, why is it
necessary to run the engine for a few minutes afterward? *
(2 Points)
To keep the battery charged
To keep the engine heat up
To check for possible leaks
None of the above
45. FUEL SYSTEM - The functions of the fuel system is (are) ... ( select all the answers) *
(2 Points)
To control the quantity of fuel to each cylinder
To ensure that the fuel is delivered at correct time
To deliver the fuel in correct condition
To govern the engine speed
All the answers are corrects
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46. FUEL SYSTEM - put the main components of the fuel system in the correct order (
injectors, Fuel pump, fuel feed pump, fuel tank, water separator filter, fuel return line,
suction line) *
(2 Points)
water separator filter, fuel feed pump, fuel filter(s), fuel pump, injectors, return line, Fuel tank,
suction line,
fuel filter(s), fuel pump, injectors, return line, Fuel tank, suction line, water separator filter, fuel
feed pump
return line, Fuel tank, suction line, water separator filter, fuel filter(s), fuel pump, injectors,fuel
feed pump
fuel tank, suction line, water separator filter, fuel feed pump, fuel filter(s), fuel pump, injectors,
return line
47. FUEL SYSTEMS - The ECU (Engine Control unit) allows (multiple answers) *
(2 Points)
To start the engine
To stop the engine in the event of engine failures
To manage the engine with all the engine sensors connected to it
To provide information to the APM controllers via CAN BUS J1939
to provide more inputs/outputs to the APM controllers
48. ELECTRICAL SYSTEMS - Temperature sensors with negative temperature coefficient
(NTC) means *
(2 Points)
The resistance decreases when the temperature increases
The resistance increases when the temperature increases
The resistance decreases when the temperature decreases
The resistance increases when the temperature decreases
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49. ELECTRICAL SYSTEM - How many pins has an oil pressure sensor ? *
(2 Points)
50. ELECTRICAL SYSTEM - Which engines from the list do NOT have an ECU? *
(2 Points)
KD27V12 - KOHLER
S12R - MITSUBISHI
TAD1344 - VOLVO
12M26 - BAUDOUIN
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