10+ Automobile Engineer Interview Questions and Answers

2 stroke engines are not commonly used due to their higher emissions, lower fuel efficiency, and shorter lifespan.

• 2 stroke engines produce more emissions compared to 4 stroke engines.

• They have lower fuel efficiency as they consume more fuel per power stroke.

• The lubrication system in 2 stroke engines is less effective, leading to shorter engine lifespan.

• Examples of vehicles that still use 2 stroke engines include some motorcycles, chainsaws, and outboard motors.

An automobile engine is a device that converts fuel into mechanical energy to power the vehicle.

• An automobile engine is the heart of a vehicle, responsible for generating power to propel the vehicle forward.

• It works on the principle of internal combustion, where fuel is burned inside the engine to produce energy.

• There are different types of automobile engines, such as gasoline engines, diesel engines, and electric motors.

• The engine consists of various components, including cy...read more

A 2-stroke engine completes a power cycle in two strokes of the piston, while a 4-stroke engine completes it in four strokes.

• 2-stroke engine: Combustion occurs every revolution of the crankshaft.

• 4-stroke engine: Combustion occurs every two revolutions of the crankshaft.

• 2-stroke engines are simpler, lighter, and have higher power-to-weight ratio.

• 4-stroke engines are more fuel-efficient and have better emissions control.

• Examples: 2-stroke - chainsaws, motorcycles. 4-stroke - ca...read more

4 stroke engines are used in automobiles for their efficiency, power output, and reduced emissions.

• 4 stroke engines provide better fuel efficiency compared to 2 stroke engines.

• They have a higher power output due to separate intake, compression, power, and exhaust strokes.

• 4 stroke engines produce fewer emissions as they have a dedicated exhaust stroke.

• Examples of automobiles using 4 stroke engines include cars, trucks, motorcycles, and buses.

A hybrid engine vehicle is a vehicle that combines two or more power sources, typically an internal combustion engine and an electric motor.

• Hybrid vehicles use regenerative braking to recharge their batteries.

• They can operate on either the internal combustion engine, the electric motor, or both.

• Hybrid engines improve fuel efficiency and reduce emissions.

• Examples of hybrid vehicles include the Toyota Prius, Honda Insight, and Ford Fusion Hybrid.

A list is mutable and can be modified, while a tuple is immutable and cannot be changed.

• Lists are defined using square brackets [], while tuples are defined using parentheses ().

• Elements in a list can be added, removed, or modified, while elements in a tuple cannot be changed once defined.

• Lists are typically used when the data needs to be modified, while tuples are used for data that should not change.

• Example: list_example = [1, 2, 3] ; tuple_example = (4, 5, 6)

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

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

Vernier caliper is a measuring tool used to measure the internal and external dimensions of an object with high accuracy.

• Consists of two scales, one fixed and one movable

• The movable scale slides along the main scale and can be locked in place

• Used in engineering, machining, and scientific research

• Can measure length, depth, and thickness

• Example: measuring the diameter of a bolt or the thickness of a sheet of metal

Geometrical dimensions and tolerance refer to the specified measurements and acceptable variations in size and shape of automobile components.

• Geometrical dimensions define the size and shape of various parts of an automobile.

• Tolerance refers to the allowable variation in dimensions to ensure proper fit and function.

• These specifications are crucial for ensuring the compatibility and performance of different components.

• For example, the dimensions of engine cylinders need to be ...read more

Moulding defects are imperfections that occur during the manufacturing process of a product.

• Moulding defects can be caused by various factors such as improper temperature, pressure, or humidity during the moulding process.

• Examples of moulding defects include air traps, sink marks, warpage, flash, and short shots.

• These defects can affect the quality and functionality of the final product and may require additional processing or even scrapping of the product.

• Preventing moulding...read more

The question is unclear and seems to be a typo. There is no clear answer.

• The question is likely a typo or misspelling.

• There is no clear meaning to 'benefits and shefty'.

• Without more context or clarification, it is impossible to provide an answer.

14 point in GD&T represents the maximum material condition (MMC) of a feature.

• 14 point in GD&T represents the MMC of a feature

• It is used to specify the condition where the feature contains the maximum amount of material allowed within the stated limits

• It is denoted by a circle with the number 14 inside

Basic questions of electrical engineering cover fundamental concepts and principles of electricity and electronics.

• What is Ohm's law?

• What is the difference between AC and DC current?

• What is a capacitor and how does it work?

• What is a transformer and what is its function?

• What is a diode and what is its purpose?

• What is a transistor and how does it work?

• What is a circuit and how is it analyzed?

• What is the difference between a series and parallel circuit?

• What is a voltage regulato...read more

LC of vernier caliper refers to the least count, which is the smallest measurement that can be read on the scale of the caliper.

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

• Formula for calculating LC: LC = (Value of 1 division on main scale) / (Total number of divisions on main scale + Total number of divisions on vernier scale)

• For example, if the main scale has 10 divisions and the vernier scale has 9 division...read more

Assembly line setup involves arranging equipment, tools, and workstations in a systematic manner to optimize production efficiency.

• Plan layout to minimize material handling

• Ensure proper spacing between workstations

• Implement lean manufacturing principles

• Utilize automation and robotics for repetitive tasks