10+ Quantsapp Interview Questions and Answers

Bearings are mechanical components that reduce friction between moving parts and support axial and radial loads.

• There are several types of bearings, including ball bearings, roller bearings, and plain bearings.

• Ball bearings use balls to reduce friction and support radial and axial loads.

• Roller bearings use cylindrical, tapered, or spherical rollers to reduce friction and support radial and axial loads.

• Plain bearings, also known as bushings, use a sliding motion to reduce fric...read more

Four stroke engines have four distinct phases while two stroke engines have only two phases.

• Four stroke engines have separate intake, compression, power, and exhaust strokes.

• Two stroke engines combine intake and compression in one stroke, and power and exhaust in another stroke.

• Four stroke engines are more fuel efficient and produce less pollution compared to two stroke engines.

• Examples of four stroke engines include most cars, trucks, and motorcycles.

• Examples of two stroke e...read more

Petrol engines use spark ignition while diesel engines use compression ignition.

• Petrol engines have higher RPMs while diesel engines have higher torque.

• Petrol engines are lighter and quieter while diesel engines are heavier and noisier.

• Petrol engines have better acceleration while diesel engines have better fuel efficiency.

• Petrol engines emit more CO2 while diesel engines emit more NOx and particulate matter.

• Petrol engines are more suitable for smaller vehicles while diesel e...read more

Diesel engines are more fuel-efficient and have higher torque, while petrol engines have higher power output and are more responsive.

• Diesel engines use compression ignition while petrol engines use spark ignition.

• Diesel engines have a higher compression ratio than petrol engines.

• Diesel engines are more suitable for heavy-duty vehicles while petrol engines are more suitable for light-duty vehicles.

• Diesel engines produce less carbon dioxide emissions than petrol engines.

• Petrol ...read more

S.I engine stands for Spark Ignition engine and C.I engine stands for Compression Ignition engine.

• S.I engine uses spark plug to ignite the fuel-air mixture while C.I engine uses compression to ignite the fuel.

• S.I engine is used in petrol/gasoline vehicles while C.I engine is used in diesel vehicles.

• S.I engine has lower efficiency and higher emissions compared to C.I engine.

• Examples of S.I engines are petrol engines used in cars and motorcycles while examples of C.I engines ar...read more

Gearbox is a mechanical device that transmits power from an engine to the wheels.

• Understand the gear ratios and their corresponding speeds

• Use the clutch to engage and disengage gears

• Shift gears smoothly and at the appropriate time

• Maintain the gearbox regularly to ensure proper functioning

There are several types of bearings used in production engineering.

• Plain bearings

• Rolling element bearings

• Jewel bearings

• Fluid bearings

• Magnetic bearings

• Flexure bearings

An automobile is a motor vehicle designed for transportation on roads.

• It typically has four wheels and an engine.

• It is used for personal transportation, as well as commercial purposes.

• Examples include cars, trucks, buses, and motorcycles.

The differential is a device that allows wheels to rotate at different speeds while driving on a curve or turning.

• It helps to distribute power between the wheels

• It allows for smooth turning and prevents tire wear

• It is essential for four-wheel drive and all-wheel drive vehicles

The least count of a vernier caliper is the smallest measurement that can be read on the scale.

• The least count is typically 0.02 mm or 0.001 inches on a vernier caliper.

• It is determined by the number of divisions on the main scale and the vernier scale.

• For example, if the main scale has 20 divisions and the vernier scale has 10 divisions, the least count would be 0.02 mm.

Bearings are used to reduce friction between two moving parts and to support loads.

• Bearings are used in machines and equipment such as motors, pumps, and turbines.

• They are used to support rotating shafts and to reduce friction between moving parts.

• Bearings can be classified into different types such as ball bearings, roller bearings, and plain bearings.

• Ball bearings are used in applications where high speed and low friction are required.

• Roller bearings are used in heavy-duty ...read more