Finding another job can be so cumbersome that it can turn into a job itself. Prepare well for the job interviews to get your dream job. Here's our recommendation on the important things to You need to prepare for the job interview to achieve your career goals in an easy way. Ic Engine is Internal Combustion Engine, the fuel is mixed with air and then inducted into the cylinder during the intake process. After the piston compresses the fuel-air mixture, the spark ignites it, causing combustion. Certifications available to learn how the Ic Engine are maintained and when to buy and sell. Follow our Wisdomjobs page for Ic Engine job interview questions and answers page to get through your job interview successfully in first attempt.
Following are the advantages of lubrication in IC Engine:
There are a couple of reasons why a big 4.0-liter engine has eight half-liter cylinders rather than one big 4-liter cylinder. The main reason is smoothness. A V-8 engine is much smoother because it has eight evenly spaced explosions instead of one big explosion. Another reason is starting torque. When you start a V-8 engine, you are only driving two cylinders (1 liter) through their compression strokes, but with one big cylinder you would have to compress 4 liters instead.
That is because of engine running too lean mixture (lack of fuel). This condition will lead to overheating and failure of the engine.
In gas turbines, 70% of the output of gas turbine is consumed by compressor. I.C. engines have much lower auxiliary consumption. Further combustion temperature of I.C. engines is much higher compared to gas turbine.
For effective lubrication, lubrication oil needs to be injected between two piston rings when piston is at bottom of stroke so that piston rides in oil during upward movement. This way lot of lubrication oil can be saved and used properly.
Glycerin has boiling point of 90°C which increases its heat carrying capacity. Thus weight of coolant gets reduced and smaller radiator can be used.
The S.I. or spark ignition engine uses petrol as a fuel and the C.I. or compression ignition engine uses diesel as a fuel. Both the fuels has different compression ratio.
In SI engine the compression ratio is 8-12:1.
In CI engine the compression ratio is 16-22:1.
So in case of SI engine, the compression ratio is not sufficient for fuel to burn so a spark plug is used, whereas in ci engine, the compression ratio is so high that due to its internal heat the fuel is combusted so there is no need for a spark plug. So the technology used in SI engine is different from CI engine.
Diesel engine has the better efficiency out of two.
In 180 degree angle the Top ring, Second ring and Oil ring are fixed. Position the ring approximately 1 inch gap below the neck.
The internal combustion engine converts chemical energy into useful mechanical energy by burning fuel.
Chemical energy is released when the fuel-air mixture is ignited by the spark in the combustion chamber. The gas produced in this reaction rapidly expands forcing the piston down the cylinder on the power stroke.
A Two-stroke engine is an internal combustion engine in which the piston's two strokes are required to complete single thermodynamic cycle.
2-STROKE engine is designed by DUGLAD CLERK in 1880, the suction, compression, expansion and exhaust takes place during 2-stroke of piston.
A four-stroke engine is an internal combustion engine in which the piston's four separate strokes are required to complete single thermodynamic cycle.
A 4-stroke engine is an internal combustion engine in which the piston completes four separate strokes— intake, compression, power, and exhaust— during two separate revolutions of the engine’s crankshaft, and one single thermodynamic cycle.
Octane No. - Octane number is defined as the percentage, by volume, of iso-octane in the mixture of iso-octane and h-heptane. It is the measure of rating of SI engine.
Cetane No. - Cetane number is defined as the percentage, by volume, of n-cetane in the mixture of n-cetane and alpha methyl naphthalene. It is the measure of rating of CI engine.
The steps involved here are:
Intake stroke: The mixture of Air and Fuel are drawn in.
Compression stroke: Fuel vapor and air are compressed and ignition takes place.
Combustion stroke: Fuel combustion takes place and piston is pushed downwards.
Exhaust stroke: Exhaust is driven out.
Two stroke engine is generally preferred. Because it has smaller size for the same output.
Automobiles, Aircraft vehicles, helicopters, Motorbikes, Boats and other locomotives.
Major power plants and similar naval applications.
Petroleum: Petroleum spirit, Petroleum diesel, liquefied petroleum gas(LPG), Compressed natural gas, Jet fuel ,Residual fuel.
Coal: Methanol, Gasoline, Diesel fuel.
Biofuels and Veg Oils: Peanut oil and other veg oils, Biobutano, biodiesel, Dimethyl Ether, biogas, hydrogen.
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