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Internal Combustion Engines

Internal Combustion Engines
A 75 cc engine has following parameter as 75 cc

Cylinder volume
Swept volume
Fuel tank capacity
Lube oil capacity

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Internal Combustion Engines
If V₁ is the jet velocity and V₀ is the vehicle velocity, then propulsive efficiency of a turbojet engine is

V₀ / (V₀ + V₁)
V₁ / (V₀ + V₁)
2V₀ / (V₀ + V₁)
2V₁ / (V₀ + V₁)

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Internal Combustion Engines
The octane number of petrol, generally available, is

40 to 60
20 to 40
60 to 80
80 to 100

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Internal Combustion Engines
The _________ engines can work on very lean mixture of fuel.

Compression ignition
Both (A) and (B)
None of these
Spark ignition

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Internal Combustion Engines
The thermodynamic cycle on which the petrol engine works, is

Stirling cycle
Joule cycle
Rankine cycle
Otto cycle

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Internal Combustion Engines
The theoretically correct mixture of air and petrol is

15 : 1
25 : 1
10 : 1
20 : 1

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