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What is the piston speed of an engine when it runs at N rpm and its length of stroke is L?
(A) 0.5 LN (B) LN
(0 2144 (D) 4LN

Stroke length of an IC Engine equals :
(^) Half the crank radius (B) The crank radius

(C) Twice the crank radius (D) Four times the crank radius

The cross-sectional area of one cylinder of an engine multiplied by its stroke length is called :

(^) Engine capacity (B) Clearance volume
(C) Combustion volume (D) Swept volume
2 is used in the piston head to control compression ratio and detonation.
(A) Compression rings (B) Dish
(C) Piston pin (D) Deflector

The cast iron is mainly used material for cylinder block because of :
(ಹ) It has sound - damping properties
(B)_ It has a low value of coefficient of thermal expansion
(C) Due to its slightly porous nature
(D) All of the above

The purpose of the gear teeth around the flywheel is :

(A) To engage with starter motor (B) To connect with camshaft

(C) To engage with clutch disc (D) To engage with distributor
The crankshaft carries a vibration damper in order to control the —————— vibration caused
by the power impulses.

(A) Longitudinal vibration (B) Lateral vibration

(C) Torsional vibration (D) None of these

The distance between the axis of the main journal and the crankpin centre lines is exactly
one half of the engine stroke and is called :

(^) Side crank (B) Crank Radius

(C) Crank pin length (D) Crank throw
The ———_——— is used to measure bearing clearance.

(^) metal rule (B)_ vernier calliper

(0) plasti gauge (D) dial gauge

195/2023 6 A