Funnelaurttf inspect and service petrolfuel systemsquestion

Assessment description

In order to complete Assessment Task 1, you must complete written responses to the questions in the Assessment Task1 (AT1): Questioning – Written Assessment

Question 1. Identify four (4) important items of personal safety when inspecting and servicing petrol fuel systems?

Question 2. What precautions should be taken before disconnecting or removing a component of an EFI system?

Ans. We have to release pressure before removing fuel system components

Question 5. How should flammable liquids released from the petrol fuel system be stored and disposed?

Flammable liquids are placed in a cool, dry Place and be stored in plastic drums.

Question 7. When handling, trapping, storing and disposing of flammable liquids released from the petrol fuel system, which document should you use to find this information?

Research octane number determine petrol’s anti-knock quality or resistance to pre-ignition

Question 11. Name the components of the fuel tank assembly below?

Question 15. The fuel filter on a modern vehicle is typically mounted?

A. Under the vehicle
B. On the end of the fuel rail
C. On the intake manifold
D. On the side of the engine block

Question 17. What is the purpose of the strainer filter in the tank?

Strainer helps to prevent large particles that comes into the fuel system where they could cause excessive fuel pump wear or plug fuel metering devices

Question 20. Name the parts of a mechanical fuel pump below.

	1.	Inlet valve
	2.
	3.
	4.
	5.
	6.	Cam on the engine camshaft
	7.	Outlet valve

4. Outlet

5. Non-return valve

Rotary motor dives a roller cell pump. Fuel is taken onto the inlet port and carried

around between rotor and discharged.

The carburetor atomies the fuel provides the correct mixture of air and fuel

Question 25. What is the purpose of a fuel jet in a carburetor?

The chemically correct mix of fuel and air mass to ensure all the fuel burns with the available oxygen to give a residue of water and carbon dioxide. the
stoichiometric ratio is 14.7:1

Question 27. Name the parts of a carburetor below.

1. Air horn 14.Idle tube

2. Choke valve 15.Main jet

7. Acceleration pump rod 20.Air holes

8. Vent to charcoal canister 21.Accelerator pump outlet valve

13.Power valve 26.High speed air bleed

Question 28. Name the sensors and other engine components below.

2. Fuel rail

3. Fuel supply hose

EFI: The intake manifold
Direct injection: The cylinder head
Centre Point: The throttle body

A

Question 33. What controls the operation of the injector?

Question 36. Name the components of the throttle body assembly below.

Question 37. Name the parts of the air cleaner and air intake system below.

1. Air duct

6. air cleaner body

7. air cleaner element

Question 38. Why is air cleaned before it enters the engine?

Question 40. What checks can be made of the carburetor and throttle body linkage? Linkages should be free from binding, correctly connected and adjusted.

Question 41. What would be the effect of an air leak at a connection after the air cleaner?

A. High speed surge
B. Loss of power at high speed
C. Hesitation on acceleration
All answers are correct D.

Question 44. What could cause a fuel leak in a carburettor?

Question 46. Which of the following is a typical fuel filter replacement interval?

Question 50. Where is the adjustment for the idle speed located on a carburetor? Ans; On the throttle-valve shaft.

Question 52. Which of the following statement regarding the usage of a fuel pressure gauge is true?

A. Typical fuel pressure for a fuel injection system is 100 to150 psi.

A. Workshop manual
B. Owner’s manual
C. Google
D. Textbooks
A

Question 54. Why is it very important that the Job Card is completed correctly? The job card becomes a legal document. Services records are kept by the workshop to maintain the vehicle service history and for legal purposes.