cameroon gce A level hydraulics and chassis systems 2

cameroon gce A level hydraulics and chassis systems 2

cameroon gce A level hydraulics and chassis systems 2

1. a) Identify part A, B, C, D, E and F of the figure 1               (6 marks)
2. b) Re-copy the Table 1 below and write the type of pressure and temperature prevailing in the

portions of the circuit of Figure 1 while specifying the physical state of each of the  portions (7marks)

Portion	Pressure (0.5x 6marks)	Temperature (0.5x6marks)	Physical state (0.5x6marks)
E-A
A-B
B-D
D-C
C-D
E-D

Table: 1

NB: HP=High Pressure; LP=Low Pressure; HT=High Temperature; LT=Low Temperature

1. c) Propose TWO (02) maintenance procedures to frequently carry out.                                         (2marks)
2.  d) Discuss how the air conditioning system removes moisture from the air.                                  (3marks)
3. e) List TWO (02) methods used to prevent the evaporator from becoming too cold and freezing.      (2marks)

                                                                                                                                                            TOTAL    (20MARKS)