Two and Three Vehicle Technology — Summer 2025

Define following terms. 1. Carburation 2. Scavenging 3. Valve over lapping

Draw port timing diagram of 2 stroke petrol engine and label it.

Why cranking mechanism is used automobile? Explain different cranking mechanism employed in three wheeler.

Justify the need of venturi in carburetor.

State the criteria considered to select engine for two wheeler.

Compare mist and splash lubrication system

List out scavenging methods. Elaborate uniflow scavenging system.

Define following terms. 1. Rake angle 2. Trail distance 3. Offset distance

Justify the need of multi-plate clutch in motor cycle.

Draw the layout of three wheeler transmission system and label it.

Define following terms. 1. Shock absorber 2. Spring 3. Steering fork

Compare spoke wheel and split disk wheel.

Explain mono suspension used in two wheeler with sketch.

State the function of suspension system.

State the design consideration for frame.

Elaborate difference between drum and disk brake.

State the material used for frame.

State main components of battery with their function.

Elaborate working of 2 stroke engine with sketch.1

State the function of following system. 1. Horn 2. Charging system 3. Lighting system

Explain ergonomic consideration for two wheeler design.

Elaborate difference between battery and magneto ignition system.

Define 1. Belt drive 2. Chain drive 3. Shaft drive

Classify three wheeler and two wheeler.

Explain front telescopic suspension system with sketch.