SML Isuzu Junior Manager Interview Questions, Process, and Tips

Q1. What is swirl in engine ?
Ans. 
Swirl in engine refers to the rotational motion of air or fuel mixture inside the combustion chamber, improving combustion efficiency.
• Swirl helps in better mixing of air and fuel, leading to more efficient combustion.

• It can improve fuel economy and reduce emissions.

• Examples include swirl-inducing intake ports or valves in engines.
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Q2. What is symptom of piston seizure due to lubrication system failure?
Ans. 
Symptom of piston seizure due to lubrication system failure is engine overheating and loss of power.
• Engine overheating

• Loss of power

• Increased engine noise

• Visible damage to piston or cylinder walls
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Q1. What is Squish in engine ?
Ans. 
Squish in engine refers to the process of compressing the air-fuel mixture in the combustion chamber before ignition.
• Squish helps in creating turbulence for better mixing of air and fuel

• It also helps in increasing the efficiency of combustion

• Squish is achieved by the design of the combustion chamber and piston crown
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Q2. What is the role on thermostat in engine cooling system?
Ans. 
Thermostat regulates the flow of coolant in the engine cooling system to maintain optimal operating temperature.
• Thermostat opens and closes to control the flow of coolant through the radiator.

• Helps maintain the engine at its optimal operating temperature for efficiency and performance.

• Prevents overheating by regulating the coolant flow based on the engine temperature.

• Common issues include thermostat getting stuck close...read more
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Q3. How piston seize until lubrication system and cooling system in intact?
Ans. 
Pistons seize when lubrication and cooling systems fail, causing friction and heat buildup.
• Pistons rely on lubrication to reduce friction between moving parts

• Cooling system prevents overheating by circulating coolant around the engine

• Without proper lubrication, friction increases and can cause the piston to seize

• If the cooling system fails, heat buildup can also lead to piston seizure
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Q4. What is the role of radiator cap ?
Ans. 
The radiator cap helps regulate the pressure in the cooling system of a vehicle.
• Prevents coolant from boiling over by raising the boiling point

• Maintains the proper pressure in the cooling system

• Allows excess coolant to flow into the overflow tank and back into the radiator when needed
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Q5. What is the clamp load and release load in clutch ?
Ans. 
Clamp load is the force applied to hold the clutch plates together, while release load is the force needed to disengage the clutch plates.
• Clamp load is the force that presses the clutch plates together to transmit power from the engine to the transmission.

• Release load is the force required to disengage the clutch plates, allowing for gear changes or stopping the vehicle.

• The clamp load must be greater than the release l...read more
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Q6. What is the role of gear box in a vehicle?
Ans. 
The gear box in a vehicle is responsible for transmitting power from the engine to the wheels at different speeds.
• The gear box allows the driver to change gears to match the speed and power requirements of the vehicle.

• Different gears provide different torque and speed ratios, allowing the vehicle to accelerate, climb hills, or maintain speed efficiently.

• Manual gear boxes require the driver to manually shift gears, whil...read more
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Q7. What is chamber angle? Why it’s required?
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Q8. What is the main steering geometry parameters?
Ans. 
Main steering geometry parameters include caster, camber, toe, and steering axis inclination.
• Caster: The angle of the steering axis when viewed from the side of the vehicle.

• Camber: The angle of the wheels when viewed from the front of the vehicle.

• Toe: The angle of the wheels when viewed from above the vehicle.

• Steering Axis Inclination: The angle between the steering axis and vertical axis of the vehicle.
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Q9. What is pre load in bearings …why its required and which type of bearing its need to adjust ?
Ans. 
Preload in bearings is the internal load applied to a bearing before it is put into service to reduce play and increase rigidity.
• Preload is required to eliminate internal clearance and increase rigidity in bearings.

• It is commonly used in high precision applications where minimal play is essential.

• Types of bearings that may require preload adjustment include angular contact ball bearings and tapered roller bearings.
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An easy blend of technical and general knowledge.

Q1. From CV and projects
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Q1. ATS SYSTEM, difference and gear and engine type
Ans. 
ATS system is a type of transmission system in vehicles, while gear and engine type refer to specific components of a vehicle.
• ATS system stands for Automatic Transmission System, which allows for automatic shifting of gears in a vehicle.

• Gear type refers to the specific type of gear system in a vehicle, such as manual or automatic transmission.

• Engine type refers to the specific type of engine in a vehicle, such as gasol...read more
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Q1. It's about the profile.
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Q2. Job role and knowledge of job profile
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Q3. GD &T drawing reading , drawing symbols sheet metal industry casting process and forging process
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Q4. HR round salary negotiation
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