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Vehicle Exhaust System Rectification

Total questions: 20

Worksheet time: 15mins

Name
Class
Date
1.

Which ratio is Stoichiometric?

a)

13.7:1

b)

16.5:1

c)

14.7:1

d)

14.5:1

2.

When at a high temperature, which gases will mix with the oxygen

a)

Carbon dioxide

b)

Nitrogen

c)

Carbon monoxide

d)

Hydrocarbon

3.

What is the department responsible for issuing vehicle exhaust emission standards

a)

Jabatan Kemahiran Malaysia

b)

Jabatan Pengangkutan Jalan

c)

Polis DiRaja Malaysia

d)

Jabatan Alam Sekitar

4.

From the picture, What is D?

a)

Catalytic convertor

b)

Resonator

c)

Exhaust flexible pipe

d)

Muffler

e)

Exhaust manifold

5.

What is the main function of the Quantifier data logging sound meter tools?

a)

To check the condition of the catalytic converter and exhaust manifold

b)

To check the torque of the vehicle

c)

To check the condition of the resonator and the muffler

d)

To check the horsepower of the vehicle

6.

Which exhaust gases that a diesel engine produces?

a)

Carbon monoxide

b)

Hydrocarbon

c)

Carbon dioxide

d)

Nitrogen oxide

e)

Particulate Matter

7.

What types of catalytic converter have?

a)

One-way catalytic converter

b)

Two-way catalytic converter

c)

Three-way catalytic converter

d)

Four-way catalytic converter

e)

All-way catalytic converter

8.

Have what materials inside the catalytic converter?

a)

Palladium

b)

Copper

c)

Platinum

d)

Rhodium

e)

Sliver

9.

Lambda sensor collects what data of gases?

a)

Hydrocarbon

b)

Oxygen

c)

Particulate matter

d)

Carbon monoxide

e)

Carbon dioxide

10.

How many types of muffler?

a)

'Z' flow

b)

'S' flow

c)

Double loop

d)

Straight flow

e)

'V' flow

11.

When the air-fuel mixture is too rich, what color of the exhaust gas is?

a)

Blue

b)

White

c)

Black

d)

Transparent

12.

What materials are exhaust systems made of?

a)

Cast iron

b)

Stainless steel

c)

Titanium

d)

Platinum

e)

Palladium

13.

What is the MAIN function of catalytic converter?

a)

To reduce noise

b)

To reduce horsepower

c)

To increase torque

d)

To reduce pollution

e)

To reduce torque

14.

What is EGR?

a)

Engine Gear Ratio

b)

Engine Gear Recirculation

c)

Exhaust Gas Recirculation

d)

Exhaust Gas Ratio

15.

Which air-fuel ratio shows LEAN?

a)

16.5:1

b)

14.7:1

c)

14.5:1

d)

13.7:1

16.

Which are the benefits of a straight flow pipe?

a)

Engine more responsive

b)

Suitable for racing use

c)

Sound more silent

d)

Exhaust flow is smoother

17.

When your exhaust system still have not remove from the vehicle, what tools that you can use to cut of the component of the exhaust system?

a)

Hand grinder

b)

Steel cut-off saw

c)

Reciprocating saw

d)

Welding tool set

18.

Which are the bending tools that we use for bend the exhaust pipe?

a)

Ram bending

b)

Side bending

c)

Centre bending

d)

Mandrel bending

e)

Front bending

19.

What gases should come out after catalytic converter?

a)

Carbon dioxide

b)

Water

c)

Oxygen

d)

Nitrogen

e)

Carbon monoxide

20.

What will happen when the exhaust pipe have leakage?

a)

Sound will be louder than normal

b)

Engine will be underpower

c)

Exhaust gas will be able to flow through the vehicle

d)

Fuel consumption will be lower

e)

Engine will be more torque than normal