In order to prevent knocking in spark ignition engines, the charge away from the spark plug should have

Internal Combustion Engines
In order to prevent knocking in spark ignition engines, the charge away from the spark plug should have

Low density

Low temperature

Long ignition delay

All of these

Low density

Low temperature

Long ignition delay

All of these

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Internal Combustion Engines
The pressure inside the cylinder is _________ the atmospheric pressure during the exhaust stroke.

None of these

Above

Below

Equal to

None of these

Above

Below

Equal to

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Internal Combustion Engines
During idling, a petrol engine requires _________ mixture.

Rich

None of these

Chemically correct

Lean

Rich

None of these

Chemically correct

Lean

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Internal Combustion Engines
Pour point of fuel oil is the

Indicated by 90% distillation temperature i.e., when 90% of sample oil has distilled off

Temperature at which it solidifies or congeals

Minimum temperature to which oil is heated in order to give off inflammable vapours in sufficient quantity to ignite momentarily when brought in contact with a flame

It catches fire without external aid

Indicated by 90% distillation temperature i.e., when 90% of sample oil has distilled off

Temperature at which it solidifies or congeals

Minimum temperature to which oil is heated in order to give off inflammable vapours in sufficient quantity to ignite momentarily when brought in contact with a flame

It catches fire without external aid

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Internal Combustion Engines
In an internal combustion engine, the process of removing the burnt gases from the combustion chamber of the engine cylinder is known as

Polymerisation

Detonation

Scavenging

Supercharging

Polymerisation

Detonation

Scavenging

Supercharging

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Internal Combustion Engines
Which one of the following event would reduce volumetric efficiency of a vertical compression ignition engine?

Inlet valve closing after bottom dead center

Inlet valve closing before bottom dead center

Exhaust valve closing after top dead center

Inlet valve opening before top dead center

Inlet valve closing after bottom dead center

Inlet valve closing before bottom dead center

Exhaust valve closing after top dead center

Inlet valve opening before top dead center

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Internal Combustion Engines

Internal Combustion Engines In order to prevent knocking in spark ignition engines, the charge away from the spark plug should have

Internal Combustion Engines The pressure inside the cylinder is _________ the atmospheric pressure during the exhaust stroke.

Internal Combustion Engines During idling, a petrol engine requires _________ mixture.

Internal Combustion Engines Pour point of fuel oil is the

Internal Combustion Engines In an internal combustion engine, the process of removing the burnt gases from the combustion chamber of the engine cylinder is known as

Internal Combustion Engines Which one of the following event would reduce volumetric efficiency of a vertical compression ignition engine?

Internal Combustion Engines
In order to prevent knocking in spark ignition engines, the charge away from the spark plug should have

Internal Combustion Engines
The pressure inside the cylinder is _________ the atmospheric pressure during the exhaust stroke.

Internal Combustion Engines
During idling, a petrol engine requires _________ mixture.

Internal Combustion Engines
Pour point of fuel oil is the

Internal Combustion Engines
In an internal combustion engine, the process of removing the burnt gases from the combustion chamber of the engine cylinder is known as

Internal Combustion Engines
Which one of the following event would reduce volumetric efficiency of a vertical compression ignition engine?