TERMINAL I EXAM JULY 2022. CLASS MVM LEVEL I

INSRTUCTIONS. Time 2:30Hrs

. This paper consists only Ten 10 questions

.Answer all Ten questions

1 (a) Mention two classes of fire and their burning materials

(b) Mention three important requirements for fire to occur

2(a) Mention two hand tools which are used in changing oil filters

. (b)Mention one single grade and three multi-grade lubricants oils for Engines

. (c) Write down the meaning of the following terms; (a) API

. (b)SAE

. (d)Mention four types of Friction

3. (a)Mention two types of radiators

. (b)Mention three types of Fan belts

. (c) Mention two types of cooling system

4 (a) Mention components of seven7 Petrol Fuel system

. (b)Mention parts seven 7 components of Diesel Fuel System

5.(a) What is a function of air cleaner

( b)Mention two types of air cleaner

(c)What is an effect of insufficient air in a combustion process?

6. What does a term cylinder bore means?

7. Mention three classifications of Engines

8. Draw Electrical Symbol representing the followings (a) Bulb (b) Battery (c) Capacitor (d) Resistor (e)

Diode

9. What does the following terms means (a) OHV (b) OHC (c) IVO (d) EVO (e) IVC (f) EVC (g)Valve

Overlap (h) Valve lag (j) Valve lead

10.(a) What is Compression ratio

. (b) Write down a formula of finding compression ration