Indo Autotech Interview Questions, Process, and Tips

2-stroke engines complete a power cycle in one revolution, while 4-stroke engines complete it in two revolutions.

• 2-stroke engines have a simpler design and are lighter than 4-stroke engines.

• 2-stroke engines have a higher power-to-weight ratio than 4-stroke engines.

• 4-stroke engines are more fuel-efficient and have a longer lifespan than 2-stroke engines.

• Examples of 2-stroke engines include chainsaws and dirt bikes, whil...read more

Otto cycle is used in gasoline engines while diesel cycle is used in diesel engines.

• Otto cycle has constant volume combustion while diesel cycle has constant pressure combustion.

• Otto cycle uses spark ignition while diesel cycle uses compression ignition.

• Otto cycle has higher thermal efficiency than diesel cycle.

• Diesel cycle has higher compression ratio than Otto cycle.

• Examples of engines using Otto cycle are gasoline c...read more

Drawing is the process of creating a design or plan, while bending is the process of shaping a material by applying force.

• Drawing involves creating a visual representation of an object or structure, while bending involves physically altering the shape of a material.

• Drawing is typically done on paper or computer software, while bending is done using tools such as a press brake or tube bender.

• Drawing is often used in the...read more

QA is process-oriented and focuses on preventing defects, while QC is product-oriented and focuses on identifying defects.

• QA involves planning, designing, and implementing processes to ensure quality standards are met.

• QC involves testing and inspecting products to identify defects and ensure they meet quality standards.

• QA is proactive, while QC is reactive.

• QA is a preventive measure, while QC is a corrective measure.

• Ex...read more

PPAP (Production Part Approval Process) has 5 stages to ensure quality of parts produced.

• Stage 1: Planning and defining the program

• Stage 2: Product design and development

• Stage 3: Process design and development

• Stage 4: Product and process validation

• Stage 5: Ongoing production, use, and feedback

There are several types of welding, including MIG, TIG, Stick, and Flux-Cored welding.

• MIG welding uses a wire electrode and a shielding gas to join two pieces of metal together.

• TIG welding uses a tungsten electrode and a filler metal to create a strong bond between two metals.

• Stick welding uses a consumable electrode coated in flux to create an arc and join two metals together.

• Flux-Cored welding uses a wire electrode w...read more

MIG welding is a process of joining metals using a consumable wire electrode and shielding gas.

• MIG stands for Metal Inert Gas welding

• It is commonly used in automotive and manufacturing industries

• Produces high-quality welds with minimal splatter

• Requires a constant voltage power source and a wire feeder

• Can be used on a variety of metals including steel, aluminum, and stainless steel

The liquid used in welding penetration test is dye penetrant.

• Dye penetrant is a liquid that is applied to the surface of the weld.

• It seeps into any cracks or defects in the weld.

• After the excess penetrant is wiped away, a developer is applied to make the defects visible.

• This test is used to check the quality of the weld and ensure it is free from defects.

Gases commonly used in welding are argon, helium, carbon dioxide, and oxygen.

• Argon is used for TIG welding of non-ferrous metals.

• Helium is used for TIG welding of thick materials.

• Carbon dioxide is used for MIG welding of steel.

• Oxygen is used for oxy-fuel welding and cutting.

• Gas mixtures like argon and carbon dioxide are also used for MIG welding.

The voltage and current used in welding depend on the type of welding process and the materials being welded.

• For example, in shielded metal arc welding (SMAW), the voltage typically ranges from 20-30 volts and the current ranges from 50-200 amps.

• In gas metal arc welding (GMAW), the voltage ranges from 15-40 volts and the current ranges from 50-350 amps.

• The voltage and current settings also depend on the thickness of th...read more

Welding is a process of joining two or more metal pieces together by heating them to a high temperature and applying pressure.

• Welding involves melting the metal pieces to be joined

• The melted metal cools and solidifies, forming a strong bond

• Different types of welding include MIG, TIG, and stick welding

• Welding is used in various industries such as construction, manufacturing, and automotive

• Welding requires safety precaut...read more

There are several types of welding techniques used in various industries.

• Arc welding is the most common type, which uses an electric arc to create heat and join metals.

• Gas welding involves the use of a fuel gas and oxygen to generate heat for welding.

• Resistance welding uses electric current and pressure to join metals.

• TIG (Tungsten Inert Gas) welding is used for high-quality welds on thin materials.

• MIG (Metal Inert Gas...read more