Shiavnski Technologies Interview Questions and Answers

Possible reasons for heavy white smoke

• Burning of coolant in the engine

• Leaking head gasket

• Faulty fuel injectors

• Burning of transmission fluid

• Excessive condensation in the exhaust system

Vehicles rely on electrical systems for various functions such as starting the engine, powering lights and entertainment systems, and charging the battery.

• Electrical systems are responsible for starting the engine and powering various components such as lights, wipers, and entertainment systems.

• The battery is charged by the alternator, which is driven by the engine.

• Modern vehicles also have complex computer systems that rely on electrical signals to operate.

• Electric and hybri...read more

CED coating is a process of electroplating a surface with a protective layer of paint.

• CED stands for Cathodic Electro Deposition.

• It is a method of coating metal surfaces with a protective layer of paint.

• The process involves immersing the metal object in a bath of paint and applying an electric current.

• The paint particles are attracted to the metal surface and form a uniform coating.

• CED coating provides excellent corrosion resistance and durability.

• It is commonly used in the a...read more

Defects in paint can be of various types depending on the cause and nature of the problem.

• Cracking or flaking due to poor adhesion

• Blistering or bubbling due to moisture or heat

• Chalking or fading due to exposure to sunlight

• Sagging or running due to excessive application

• Orange peel or fish eyes due to contamination

• Peeling or delamination due to improper surface preparation

• Cratering or pinholing due to air entrapment

• Fisheyes or solvent popping due to incompatible materials

IC engine stands for Internal Combustion engine. It is a heat engine that converts chemical energy into mechanical energy.

• IC engine is used in automobiles, generators, and other machinery.

• It works by burning fuel inside a combustion chamber to create high-pressure gases that move a piston.

• Examples of IC engines include gasoline engines, diesel engines, and natural gas engines.

Mechanical engineering is a branch of engineering that deals with the design, manufacturing, and maintenance of mechanical systems.

• It involves the study of mechanics, thermodynamics, and materials science.

• Mechanical engineers design and develop machines, tools, and equipment.

• They work in various industries such as automotive, aerospace, and manufacturing.

• Examples of mechanical systems include engines, turbines, and robots.

• Mechanical engineers also focus on improving energy ef...read more

G-codes are used in CNC machines to control the movement of the cutting tool. Here are 5 commonly used G-codes.

• G00 - Rapid positioning

• G01 - Linear interpolation

• G02 - Circular interpolation (clockwise)

• G03 - Circular interpolation (counterclockwise)

• G28 - Return to home position

RPM and feed can be calculated using specific formulas based on the machine and cutting parameters.

• RPM can be calculated using the formula: RPM = (CS x 12) / (π x D), where CS is cutting speed in feet per minute and D is the diameter of the cutting tool in inches.

• Feed can be calculated using the formula: Feed = RPM x N x CL, where N is the number of cutting edges and CL is the chip load per tooth.

• It is important to consider the material being cut, the type of cutting tool, an...read more