UNIT REF:
LV0506K
WRITTEN ASSESSMENTS
KNOWLEDGE OF INSPECTING LIGHT VEHICLES USING
PRESCRIBED METHODS
Pass Mark 60%
1. This question is concerned with light vehicle maintenance
inspections. (20 marks)
a. State two inspections that could be carried out seasonally, explaining
what would be checked and why? AC (1.1) (4 marks)
(a) 1, ENGINE OIL - Engine Oil can perform differently depending on the Temperature, we can check its
Viscosity and/or Level. D.C. Engine Oil Performance varies with Internal and External Temperatures, the
Viscosity of the Oil must be suitable to what Season it is (Winter etc.).
HOW - We can test the Engine Oil's Viscosity by using a measuring device (Viscometer?) and/or by
looking at its properties seeing what Season it's best suited in.
Exhaust Gasses - Vehicle exhaust fumes can irritate the eyes and respiratory tract, and are a risk to health
by breathing in. Carbon-fueled engine fumes contain carbon monoxide, a poisonous gas. Prolonged exposure
to diesel fumes, especially blue or black smoke, may lead to coughing and breathlessness.
HOW - A probe is placed in the tailpipe of the car and the exhaust gasses are measured following a
strict procedure. The exhaust gas analyzer is used for measuring 4 gasses, oxygen (O2), carbon monoxide
(CO), carbon dioxide (CO2) and hydrocarbons (HC) as well as calculating lambda.
b. State two tools that would assist with an inspection of suspension and
steering systems. Explaining how to use the tools.
AC (1.3) (4 marks)
b. Two tools are
1 , Car jack– Can be used to jack the vehicle up and then putting your hands at 3 o'clock and 9 o'clock
position on and tire and wiggling it to check the play.
2, Pry bar– Once the vehicle is jacked up, Pry bar can be sticked under the tire and wiggled up and down
to check the play in ball joint.
c. Explain how you would check for excessive play and state the signs, for
example ‘wheel bearing would be grinding’
