cameroon gce A level 2024 chassis systems and transmission 2
cameroon gce A level 2024 chassis systems and transmission 2
SECTION A
(Answer THREE Questions from this section)
QUESTION 1. STEERING OR FRONT–END GEOMETRY
The figure la, lb, 1c and Id describe some Steering geometry angles, orientation and other characteristics of
wheels with respect to the front and rear
With the aid of the figures above, name the following references; A, B, C, D, E, G, H, and K respectively
(4marks)
(3marks)
(3marks)
(lmark)
(3marks)
b. Give the function of A, and E respectively.
c. What is the function of the steering geometry?
d. Name the characteristic angles referenced P and D on figure lc
e. What is the name and role of the distance (d) on figure Id?
f. Name two angles of the front–end geometry that enables the reduction of the offset distance on the
ground (lmark)
g. Name two angles that permit the stability of the vehicle and maintains the wheels in a straight line
h. After checking the front–end geometry with a diagnostic tool, the results revealed that preliminary checks.be done.
Give a check to be carried out for each of these elements (Tyres, Steering ball joints, Steering, Steering hub) in die
form of a table.
l. What is the function of the included angle?
(lmark)
(2marks)
(2marks)
Give the corresponding speeds of each combination realised on figure 4a, 4b, and 4c.
In not more than 3 lines
, give the purpose of a governor in an automatic transmission?
c. Enumerate THREE (03) advantages of an epicyclic or planetary gear train
Outline TWO (02) parameters that determine the operating principle an epicyclic gear box
e. List TWO (02) frequent checks carried out on an automatic gear box
Give THREE (03) components of the automatic gear box that can prevent of forward or reverse irrespective of
the position of the gear selection lever
List the various types of gears used in the automatic gear box.
What is the full meaning of the acronym ATF and its purpose in the system?
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