Engineering :: Automobile Engineering
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71. |
The purpose of the dynamo in an automobile is to |
A. |
Supply electric power |
B. |
Convert mechanical energy into electrical energy |
C. |
Act as a reservoir of electrical energy |
D. |
Continually recharge the battery |
E. |
Partly convert engine power into electric power |
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Answer: Option D
Explanation:
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72. |
The purpose of crankcase ventilation is to |
A. |
Cool the oil |
B. |
Remove vaporized water and fuel |
C. |
Supply oxygen to the crank case |
D. |
Assist in maintaining the viscosity of oil |
Answer: Option B
Explanation:
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73. |
The device in the cooling system that increses the boiling point of the water in the system is called |
A. |
Radiator |
B. |
Drain plug |
C. |
Water jacket |
D. |
Pressure cap |
E. |
Vacuum valve |
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Answer: Option D
Explanation:
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74. |
In the fuel injection pumps for Diesel engine the effective pressure strokes of the plungers in the fuel injection pump are regulated by means of a |
A. |
Fuel pump |
B. |
Control rack |
C. |
Needle valve |
D. |
Camshaft |
E. |
Check valve |
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Answer: Option B
Explanation:
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75. |
The fuel lines connecting the fuel injection pump individual elements with corresponding injector should have |
A. |
Minimum length |
B. |
Varying length |
C. |
Length in increasing order |
D. |
Length in decreasing order |
E. |
Equal length |
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Answer: Option C
Explanation:
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76. |
In the fuel injection pump of a Diesel engine, the fuel injection timing is adjusted by adjusting the |
A. |
Delivery valve |
B. |
Rotation plunger |
C. |
Lift of plunger |
D. |
Pump camshaft |
E. |
Tappets |
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Answer: Option B
Explanation:
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77. |
Cetane number of a Diesel fuel is measure of |
A. |
Volatility |
B. |
Viscosity |
C. |
A.P.I. specific gravity |
D. |
Ignition quality |
E. |
Delay period |
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Answer: Option E
Explanation:
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78. |
The Diesel fuel pump is designed to supply fuel |
A. |
Just sufficient against the demand of the injection pump |
B. |
In excess quantity than required by the injection pump |
C. |
In less quantity than required by the injection pump |
D. |
At constant quantity at all engine speeds |
E. |
In sufficient quantity in accordance with the engine speed |
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Answer: Option E
Explanation:
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79. |
The function of Diesel feed pump (when ever provided) is to |
A. |
Pump the fuel from the injection pump to the injector |
B. |
Pump the fuel from the tank into the injection pump |
C. |
Pump the oil into the main gallery |
D. |
Send back the fuel from the injector into the tank |
E. |
Pump the fuel to the injector |
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Answer: Option B
Explanation:
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80. |
The fuel is injected into the cylinder in Diesel engine when the piston is |
A. |
Exactly at T.D.C. after compression stroke |
B. |
Just after T.D.C. during exhaust compression stroke |
C. |
Approaching T.D.C. during compression stroke |
D. |
Approaching T.D.C. during exhaust stroke |
Answer: Option C
Explanation:
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