Internal Combustion Engines When a body, floating in a liquid, is given a small angular displacement, it starts oscillating about a point known as Centre of buoyancy Centre of gravity Centre of pressure Metacentre Centre of buoyancy Centre of gravity Centre of pressure Metacentre ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The brake power of a diesel engine, keeping other parameters constant, can be increased by Increasing the temperature of intake air Decreasing the density of intake air Increasing the pressure of intake air Decreasing the pressure of intake air Increasing the temperature of intake air Decreasing the density of intake air Increasing the pressure of intake air Decreasing the pressure of intake air ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The theoretically correct mixture of air and petrol is 25 : 1 10 : 1 20 : 1 15 : 1 25 : 1 10 : 1 20 : 1 15 : 1 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines If V₁ is the jet velocity and V₀ is the vehicle velocity, then the propulsive efficiency of a rocket is given by V₁/(V₀ + V₁) [2(V₀/V₁)]/ [1 + (V₀/V₁)²] V₀/(V₀ + V₁) (V₀/V₁)/ [1 + (V₀/V₁)²] V₁/(V₀ + V₁) [2(V₀/V₁)]/ [1 + (V₀/V₁)²] V₀/(V₀ + V₁) (V₀/V₁)/ [1 + (V₀/V₁)²] ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In petrol engine, using a fixed octane rating fuel and fixed compression ratio, supercharging will _________ the knocking tendency. Increase Not effected Decrease None of these Increase Not effected Decrease None of these ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The air standard efficiency of an Otto cycle compared to diesel cycle for the given compression ratio is More or less depending on power rating Less Same More More or less depending on power rating Less Same More ANSWER DOWNLOAD EXAMIANS APP
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