HOCHIMINH UNIVERSITY OF INDUSTRY
ENGLISH FOR AUTOMOBILE
ENGINEERING
LECTURER: LANG VAN THANG
FACUTY OF MECHANICAL ENGINEERING
HO CHI MINH UNIVERSITY OF INDUSTRY
EMAIL: thang.langvan@hotmail.com
SUBJECTS
HOCHIMINH UNIVERSITY OF INDUSTRY
UNIT 7
MAY 14, 2011
ENGLISH FOR AUTOMOBILE
ENGINEERING
FINDING A FAULT IN A CAR
HOCHIMINH UNIVERSITY OF INDUSTRY
Presentation
If your car doesn’t start in the morning, you should check
three things first: the battery, the fuel level and the spark
plugs. It is easy to repair three faults. If the battery is flat,
you should recharge it. If it doesn’t work, you should
replace it. If the petrol tank is empty, fill it up. If the spark
plugs are dirty, clean them, and if the gap in a spark plug
is too narrow or too wide, adjust it to the correct width.
Read the text and match these pictures in Figure 7.1 with
words from the passage:
If your car still doesn’t start, the petrol pump may be
broken, or the fuel pipe may be blocked. If the pump is
broken, it must be repaired or replaced. If the fuel pipe is
blocked, take it off and unblock it.
HOCHIMINH UNIVERSITY OF INDUSTRY
Presentation
If there is a loud CLICK! When you turn the key, the
starter motor may be jammed. If it is, you can try to release
it by pushing the car forwards and backwards (in 2nd gear).
If the car still doesn’t start, the starter motor should be
repaired or replaced.
HOCHIMINH UNIVERSITY OF INDUSTRY
Practice 1
Read the text and then complete the table 7.1:
Petrol will not burn unless it is mixed with air: normally
the proportion of air to petrol required to burn fuel
completely is 15 (air): 1 (petrol). This means that 1 kg of
petrol should be mixed with 15 kg of air. More air or less
petrol gives a weak mixture i.e. an air: petrol ratio greater
than 15:1. Less air or more petrol gives a rich mixture i.e.
an air : petrol ratio of less than 15:1.
A weak mixture, which will mean very slow combustion,
will result in high fuel consumption, low engine power and
possibly overheating of the engine. A rich mixture, which
will also mean slow combustion, will similarly result in
high fuel consumption and low engine power. A further
indication of rich mixture is black or sooty exhaust gas.