Diesel Mechanic Trouble Shooting MCQ Practice Test - Set 01 - ObjectiveBooks

Diesel Mechanic Trouble Shooting MCQ Practice Test - Set 01

Practice Test: Question Set - 01


1. What is the mechanical cause engine does not start?
    (A) Starter motor mounting bolt loose
    (B) Defective alternator
    (C) Defective thermostat valve
    (D) Clogged fuel filter

2. What is the reason for engine low power generation?
    (A) Weak compression
    (B) Defective alternator
    (C) External leakage of oil
    (D) Clogged thermostat valve

3. What is the reason for engine low power generation?
    (A) Piston ring worn out
    (B) Defective oil relief valve
    (C) Loose fan belt
    (D) Defective alternator

4. What is the reason for high fuel consumption of diesel?
    (A) Defective thermostatic valve
    (B) Low compression
    (C) Loose battery terminals
    (D) Water in the fuel system

5. What is the possible cause of excessive fuel consumption?
    (A) High fuel in tank
    (B) Low fuel in tank
    (C) High compression
    (D) Weak compression

6. What is the effect of tapper and ovality of a bore?
    (A) Compression loss
    (B) Misfiring
    (C) Difficult starting
    (D) False valve timing

7. What is the mechanical cause for engine does not start?
    (A) No air in fuel system
    (B) Clogged exhaust manifold
    (C) Battery full charge
    (D) Starter motor engage properly

8. What is the reason for high oil consumption?
    (A) Defective pressure gauge
    (B) Improper valve timing
    (C) Excessive valve guide clearance
    (D) Clogged fuel filter

9. What is the possible cause of high oil consumption?
    (A) Clogged air cleaner
    (B) Clogged fuel filter
    (C) Worn out of piston rings
    (D) Low oil level

10. What is the possible cause of engine over heating?
    (A) High water level
    (B) High oil level
    (C) Faulty water pump
    (D) Faulty injector

11. What is the reason for high fuel consumption in diesel engine?
    (A) Oil level high
    (B) Air cleaner clogged
    (C) Fuel level in tank is high
    (D) High compression pressure

12. What is the mechanical cause for engine does not start?
    (A) Defective oil pump
    (B) Defective starter switch
    (C) Improper valve timing
    (D) No water in fuel

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