Mahindra First Choice Wheels Evaluation Engineer Interview Questions, Process, and Tips

Harihara gotta, Evaluater engineer

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Q1. What called 4 stoke engine
Ans. 
A 4-stroke engine is a type of internal combustion engine that completes four separate strokes (intake, compression, power, exhaust) in two crankshaft revolutions.
• Intake stroke: Fuel and air are drawn into the combustion chamber.

• Compression stroke: The fuel-air mixture is compressed by the piston.

• Power stroke: The spark plug ignites the compressed mixture, causing an explosion that drives the piston down.

• Exhaust stroke...read more
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Q1. What is called 4 stoke engine
Ans. 
A 4-stroke engine is an internal combustion engine that completes four separate strokes in the intake, compression, power, and exhaust processes.
• Intake stroke: Fuel and air are drawn into the combustion chamber.

• Compression stroke: The fuel-air mixture is compressed by the piston.

• Power stroke: The spark plug ignites the compressed mixture, causing an explosion that drives the piston down.

• Exhaust stroke: The piston pushe...read more
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Harihara gotta, Evaluater engineer

*****,evaluater engineer

Q1. *****
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Q2. Harihara gotta, Evaluater engineer Car dekho
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Harihara gotta, Evaluater engineer

Q1. Briefly explanation about Body stature
Ans. 
Body stature refers to the overall height and build of an individual.
• Body stature includes factors such as height, weight, and body proportions.

• It can vary greatly among individuals due to genetics, nutrition, and overall health.

• Body stature can be classified into categories such as short, average, tall, underweight, overweight, etc.
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Q2. Engine parts difine
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Q1. Body structure & engine related
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Q2. Any thing about car
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Q1. All questions experience and your technical, knowledge.
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Q1. All questions experience and your technical skills and knowledge.
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Q1. How to work turbo
Ans. 
Turbo is a device that increases the power output of an engine by forcing extra air into the combustion chamber.
• A turbocharger uses exhaust gases to spin a turbine, which in turn drives a compressor to force more air into the engine.

• The additional air allows more fuel to be burned, resulting in increased power and efficiency.

• Turbocharging is commonly used in automotive engines to improve performance.

• Examples of turboch...read more
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Q2. How to identify gear box overhaul
Ans. 
Gear box overhaul can be identified through various signs and symptoms.
• Unusual noises or vibrations coming from the gear box

• Difficulty in shifting gears or gears slipping

• Leaking fluid or visible damage to the gear box

• Decreased performance or power

• Increased fuel consumption

• Warning lights or error codes related to the gear box

• Excessive heat or burning smell from the gear box
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Q3. How many pillers Car
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Q4. Where is the connecting rod
Ans. 
The connecting rod is a component in an engine that connects the piston to the crankshaft.
• The connecting rod is located inside the engine block.

• It connects the piston to the crankshaft, transferring the linear motion of the piston into rotational motion of the crankshaft.

• In a typical four-stroke internal combustion engine, each cylinder has a connecting rod.

• The connecting rod is usually made of steel or aluminum alloy.

• ...read more
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Q5. How to identify misfired Car
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To identify a misfired car, look for symptoms such as rough idling, decreased engine power, and unusual exhaust emissions.
• Listen for a rough or uneven engine idle.

• Notice a decrease in engine power or acceleration.

• Observe unusual exhaust emissions, such as black smoke or a strong smell of fuel.

• Check for a flashing check engine light on the dashboard.

• Perform a diagnostic scan using an OBD-II scanner to retrieve error cod...read more
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Q6. Pillers damaged and how to identify
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Pillars can be damaged due to various reasons. Identifying damage involves visual inspection, checking for cracks, leaning, or other signs of instability.
• Inspect the pillars for visible cracks or fractures.

• Check if the pillars are leaning or tilting.

• Look for signs of water damage or erosion.

• Examine the pillars for any signs of structural weakness or deterioration.

• Consider conducting a professional assessment or using s...read more
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Q1. Engine parts telling
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Q2. Where is the plug attached
Ans. 
The plug is typically attached to an electrical outlet.
• The plug is usually connected to a wall socket or power strip.

• In some cases, the plug may be attached to a power cord or extension cord.

• The plug can be found in various locations depending on the specific device or appliance.

• Examples include plugs on the back of a computer tower, the side of a television, or the bottom of a lamp.
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Q3. How to identify engine overhaul
Ans. 
Engine overhaul can be identified by various signs such as reduced performance, increased oil consumption, and abnormal noises.
• Reduced engine performance

• Increased oil consumption

• Abnormal noises such as knocking or ticking

• Excessive smoke from the exhaust

• Metal shavings in the oil

• Loss of power or acceleration

• Difficulty starting the engine

• Poor fuel economy
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Q4. How to check Tyre year and manufacturing
Ans. 
To check the tyre year and manufacturing, look for the DOT code on the sidewall of the tyre.
• The DOT code is a combination of numbers and letters usually located on the sidewall of the tyre.

• The last four digits of the DOT code indicate the week and year of manufacture.

• For example, if the last four digits are '2318', it means the tyre was manufactured in the 23rd week of 2018.
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Q5. How to check engine is back compression process
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To check engine back compression, perform a compression test using a compression gauge.
• Connect the compression gauge to the spark plug hole of each cylinder.

• Disable the ignition system and fuel system to prevent the engine from starting.

• Crank the engine several times and record the compression reading for each cylinder.

• Compare the compression readings to the manufacturer's specifications.

• Low compression readings may in...read more
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Q6. When Black smoke is coming,white smoke is coming, blue smoke
Ans. 
Black smoke indicates burning oil, white smoke indicates coolant leak, blue smoke indicates burning oil.
• Black smoke is usually caused by burning oil, which can be a sign of engine problems.

• White smoke is often caused by a coolant leak, which can indicate a blown head gasket or cracked engine block.

• Blue smoke is typically caused by burning oil, which can be a sign of worn piston rings or valve seals.
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