61⟩ Connecting rods are generally of the following from a. Forged round section steel b. Cast steel triangular section c. Forged square section steel d. Forged I section steel
d. Forged I section steel
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“Car Repairman based Frequently Asked Questions in various Car Repairman job interviews by interviewer. These professional questions are here to ensures that you offer a perfect answers posed to you. So get preparation for your new job hunting”
86 Car Repairman Questions And Answers
62⟩ Tell me what Is Sae? Mention The Importance Of Sae To The Automobile Domain?
SAE stands for society of automotive engineers. This society is responsible for developing the standards for the engineering of powered vehicles of all kind. The vehicles may include car, boat, truck and even aircraft. SAE has developed standards for ground vehicles and aerospace vehicles. SAE also encourages students of engineering, technology, science and math’s disciplines. This society has been publishing technical information since 1906.
63⟩ Tell us what Is The Range Of Engine Efficiency In Case Of Two Stroke Engine?
The two stroke engines have very high range to be compared to the four stroke engines. Because power stroke is generated every two revolution while in four stroke, power stroke is generated every four revolutions.
64⟩ Tell me how much experience do you have working with automobiles?
If you haven't worked on automobiles in a professional setting, don't sweat it! You can include your experience working on your own cars or others. When you respond to this question, you want to go in depth about the type of work you have done, sharing your knowledge and areas of expertise. Rather than saying, "I have about 8 years of experience,"
65⟩ The metering rod is designed to vary the size of which jets a. High speed jets b. Accelerating jets c. Float level jets d. Idle jets
a. High speed jets
66⟩ The compression ratio in a diesel engine is as high as a. 251 b. 201 c. 101 d. 51
b. 20:1
67⟩ Engine torque is highest at a. Low speed b. Intermediate speed c. High speed
b. Intermediate speed
68⟩ Which type of valve arrangements require the use of rocket arms? a. H – head b. T – head c. I – head d. L – head
c. I – head
69⟩ When we lift a 10 kg weight, 3 metre we would be doing a. 300 m kg of work b. 3 m kg of work c. 30 m kg of work
c. 30 m kg of work
70⟩ If the connecting rod longer, the side thrust of the piston is a. Increased b. Constant c. Decreased
c. Decreased
71⟩ The type of friction generally present in an automotive engine is a. Viscous friction b. Greasy friction c. Dry friction
a. Viscous friction
72⟩ Explain me how Air Conditioners Work In Cars?
Air conditioners are based on the principles of evaporation and condensation and then compression and expansion. The hot air of the car is removed by the process of evaporation and then the condensation of the evaporated air takes places which is then further compressed by the compressor and then finally expanded to us in the form of cold breeze. Somehow, Air conditioning reduces the average of the car, as the energy is required to remove the hot air and then compression and expansion.
73⟩ Do you know what Is Kingpin Offset? State Some Of Its Application?
The kingpin offset is the part, basically called as pivot used in the steering of the vehicles. This offset helps in rotating of the steering and thus it’s very useful in steering mechanism of the cars.
Applications: This is also used to measure scrub radius with the help of geometric parameters of wheel plane above and below ground level. It provides directional stability to the vehicles when it i combined with the caster.
74⟩ Suppose if We Use Gasoline In Diesel Engine, What Will Happen?
Adding gasoline to the diesel engine may blast off the engine. Compression ratio of the petrol engine is 6 to 10 and diesel engine is 15 to 22. Thus gasoline will get very highly compressed and might result in blast off engine.
75⟩ Do you know what Is Clutch Drag?
When the clutch is not disengaging fully and provides some difficulty in changing the gears then this defect is called clutch drag.
76⟩ Tell me in A Tractor, How The Hydrostatic Propulsion Systems Work?
This system is based on Pascal’s law. In a tractor the pressure is same, so the force given by the liquid to the surrounding is equal to the pressure X area. Thus, obeying the Pascal’s law hydrostatic propulsion system is designed, similarly small piston feels small force and the large piston feels larger area.
77⟩ Tell us why Does A Compression Engine Use High –octane Fuel?
The property of a fuel, which describes how fuel will or will not self-ignite, is called the octane number or just octane. Engines with low compression ratios can use fuels with lower octane number, but high compression engines must use high-octane fuels to avoid self-ignition and knock.
78⟩ Tell me does Diesel Engine Powered Automobile Use Unit Pump And Unit Injector?
In the case of the engines powered by diesel fuel supply systems, unit pump & unit injector are operated by camshaft & thus pressure of injected fuel depends on engine speed. Whereas,in common rail systems it is independent of engine speed.
79⟩ Tell me what Do You Mean By Independent Suspension?
Independent suspension refers to the mounting of the wheel on a separate axle, so that road shocks affect only the particular wheel.
80⟩ Do you know what Is Bhp? How Can You Measure Bhp?
BHP is ‘Brake Horsepower’. It reflects the powerfulness of the brakes of the vehicles. BHP stands for how much power will be required to make the engine stop working i.e. to stop the rotation of the engine.
BHP = 2 times pi times torque times revolutions; all this divided by 550. Pi is 3.1416 and torque is in pounds-feet, and revolutions are revs per second.
