Mechanical Engineering - Automobile Engineering

46. 

The valve overlap in four stroke petrol engines is approximately

A. 30°
B. 60°
C. 90°
D. 120°

Answer: Option A

Explanation:

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47. 

The petrol engines are also known as

A. spark ignition (S.I.) engines
B. compression ignition (C.I.) engines
C. steam engines
D. none of these

Answer: Option A

Explanation:

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48. 

Which of the following indicates a multigrade oil ?

A. SAE 30
B. API SF
C. SAE 20 W-50
D. API 50

Answer: Option C

Explanation:

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49. 

The coefficient of friction for the clutch facing is approximately

A. 0.1
B. 0.4
C. 0.8
D. 1.2

Answer: Option B

Explanation:

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50. 

The component that connects the steering rack to the knuckles is

A. tie-rod
B. sector gear
C. pivot
D. spline

Answer: Option A

Explanation:

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