Mahindra & Mahindra Graduate Apprentice Trainee Interview Questions, Process, and Tips

Rear tires are big in tractors to provide better traction, stability, and weight distribution.

• Big rear tires offer increased traction, allowing tractors to navigate through rough terrains and pull heavy loads.

• The larger surface area of the rear tires distributes the weight of the tractor more evenly, reducing soil compaction and preventing sinking in soft ground.

• Bigger tires also enhance stability, preventing the tract...read more

Tires are black in color due to the presence of carbon black.

• Carbon black is added to the rubber during the manufacturing process to improve its strength and durability.

• It also helps to protect the tire from UV rays and heat.

• Tires without carbon black would be more susceptible to cracking and wearing out quickly.

• Other colors of tires are available, but they are less common and often used for aesthetic purposes only.

The flywheel is a mechanical device that stores rotational energy and helps in maintaining the engine's speed and stability.

• The flywheel is connected to the crankshaft of the engine and stores excess energy during the power stroke.

• During the compression stroke, the stored energy in the flywheel helps in maintaining the engine's momentum and smooth operation.

• The flywheel also acts as a rotational inertia, reducing speed...read more

Wet brakes are more efficient than dry brakes due to better heat dissipation and reduced wear and tear.

• Wet brakes have a cooling effect due to the presence of water, which helps in dissipating heat generated during braking.

• Wet brakes also have reduced wear and tear as the water acts as a lubricant, reducing friction between the brake pads and the rotor.

• Dry brakes, on the other hand, generate more heat and can cause bra...read more

Three point linkage is a mechanism used in tractors to connect and control implements, providing stability and flexibility.

• Three point linkage is a system of three hydraulic arms that connect the tractor to an implement.

• It allows the implement to be raised, lowered, and tilted as needed.

• The three points of connection provide stability and prevent the implement from swaying or tipping.

• The top link controls the vertical ...read more

1st angle and 3rd angle projection are two methods used in technical drawing to represent three-dimensional objects on a two-dimensional surface.

• 1st angle projection is commonly used in Europe and Asia, while 3rd angle projection is commonly used in North America.

• In 1st angle projection, the object is imagined to be in the first quadrant and the views are projected onto the planes surrounding the object.

• In 3rd angle pr...read more

Compression ratio is the ratio of the volume of the combustion chamber from its largest capacity to its smallest capacity.

• Compression ratio is an important factor in determining the efficiency and power output of an engine.

• In SI engines, the compression ratio is typically between 8:1 to 12:1.

• In CI engines, the compression ratio is typically between 14:1 to 25:1.

• Higher compression ratios lead to higher thermal efficienc...read more

Heat is transferred in convection through the movement of a fluid medium.

• Convection is a mode of heat transfer that occurs in fluids (liquids or gases).

• Heat is transferred through the movement of the fluid particles.

• Hot fluid rises, creating a convection current, while cold fluid sinks.

• Examples of convection include boiling water, wind, and ocean currents.

AC system in cars is a cooling system that regulates the temperature inside the car.

• AC system uses a compressor to compress refrigerant gas

• The compressed gas is then passed through a condenser to release heat

• The cooled gas is then passed through an evaporator to absorb heat from the car's interior

• The cooled air is then blown into the car's cabin through vents

• Examples of AC systems in cars include manual and automatic s