L.G.Balakrishnan & Bros NPD Engineer Interview Questions and Answers

Q1. Basic In my Branch Mechanical
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Q2. Vernier Caliper , Micrometer,Height gauge etc.
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Q1. What is toe in out please describe
Ans. 
Toe in and toe out are terms used to describe the angle of the wheels on a vehicle.
• Toe in refers to the front of the wheels being closer together than the back of the wheels.

• Toe out refers to the front of the wheels being further apart than the back of the wheels.

• Toe in/out can affect the handling and tire wear of a vehicle.

• Proper alignment is important for safety and optimal performance.
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Q2. What is wheel balancing
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Wheel balancing is the process of equalizing the weight of a tire and wheel assembly so that it spins smoothly at high speeds.
• It involves adding or removing weights to the wheel to balance it

• Unbalanced wheels can cause vibrations, uneven tire wear, and steering issues

• It is important to balance wheels regularly, especially after getting new tires or wheels

• Examples of wheel balancing equipment include wheel balancers and
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Q3. What is Caster camber angle
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Caster camber angle is the angle between the vertical axis of the wheel and the steering axis.
• It affects the stability and handling of the vehicle.

• Caster angle helps in straight-line stability and steering returnability.

• Camber angle helps in tire wear and cornering ability.
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Q1. What are about Welding defect
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Welding defects are imperfections that occur during the welding process.
• Common welding defects include porosity, undercutting, and incomplete fusion.

• Porosity is caused by gas pockets trapped in the weld, while undercutting is a groove at the base of the weld.

• Incomplete fusion occurs when the weld metal does not fuse completely with the base metal.

• Welding defects can weaken the weld and compromise its integrity.

• Quality ...read more
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Q2. Vernier caliper least count
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Vernier caliper least count is the smallest measurement that can be read on the scale of the caliper.
• The least count of a Vernier caliper is usually 0.02 mm or 0.05 mm.

• It is determined by dividing the smallest division on the main scale by the number of divisions on the Vernier scale.

• For example, if the smallest division on the main scale is 1 mm and there are 20 divisions on the Vernier scale, the least count would be
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Q3. Measuring instruments
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Q4. What type of welding
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The type of welding used depends on the material being welded and the desired strength of the joint.
• Common types of welding include MIG, TIG, stick, and flux-cored welding.

• MIG welding is often used for welding aluminum and steel.

• TIG welding is commonly used for welding thin materials and for precision welding.

• Stick welding is often used for welding thicker materials and in outdoor environments.

• Flux-cored welding is sim...read more
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What your view on alcohol and alcohol bane or not and why