These automobile engineering mcq page-1 are most important for various exams like SSC JE, State PSC Junior Engineer (JE) Job post examination, Motor Vehicle Inspector (MVI) examination and important for other exams.
Introduction to automobile engineering mcq page-1
In the first place, Exam Objective welcomes you. As a matter of fact you have came to the right place to study automobile engineering mcq. This automobile engineering mcq page-1 contains 10 multiple choice questions out of hundreds MCQs for the purpose of serving unique and important automobile MCQ that will help you for sure.
Furthermore, if you are preparing for Motor Vehicle Inspector and SSC Junior Engineer exams then these MCQs will play very important role in your exam. In addition, if you are preparing for state PSC Junior Engineer exams similarly you will find these mcqs important. Not only but also for other related exams.
Topics covered in these automobile Engineering MCQs
The key topics covered in this page are chassis frame bending together with four options to choose one. And other equally important topics like aneroid additionally dynamometers, chassis frame distortion, clutch operation and transmission system of automobile.
In this case we added only 10 questions you can read more by visiting next pages from below. Moreover these mcqs are prepared to familiarize the students with exam pattern. Additionally students can also download Automobile Engineering MCQ PDF equally important from below this page.
Once read the MCQ and observe whether it is important or not? PDF is also available.
10 MCQs of page-1 are given below with explanation
Automobile Engineering MCQ Question 1:-
Lateral bending of the frame side members may be caused on account of?
Options:
(a) weight of passengers
(b) side wind
(c) engine torque
(d) braking torque
Explanation: –
Explanation of correct option: –
Side wind force causes lateral forces on vehicle’s longitude axis that results lateral bending of side member of vehicle.
There are also several factors like centrifugal force, road camber etc. cause lateral bending of side member of vehicle’s body. Hence option b of this automobile engineering MCQ is correct answer.
What is lateral bending of chassis Frame?
Lateral (Side) Bending of frame is that in which bending moment due to the above factors acts on the side member of chassis frame which tends to bow the member in the direction of force as shown in image below..
Explanation of option A: –
The effect of weight of passenger on vehicle’s frame occurs in many ways. Weight of passenger cause vertical bending on frame side members.
Weight of passenger generates downward bending force on side members of chassis frame.
Additionally, weight of passenger produce effect on brakes and suspension of car as well as weight distribution and fuel economy of car.
Explanation of option C: –
Engine torque produces rotational force along the longitudinal axis of automobile chassis frame during the acceleration of engine.
During the engine toque, the rotational force caused by torque tends to twist the side member of automobile chassis frame in the direction of rotational force.
Explanation of option D: –
The effect of braking torque causes compressive force on side members of automobile chassis frame which twists the member in vertically. Effect of braking torque is similar to the effect of engine torque on members in some way.
Question 2:- Aneroid is a
Options:
(a) cold starting device
(b) emission control device
(c) decompression device
(d) device for timing injection
Explanation: –
Explanation of correct option that is emission control device: –
Aneroid is a device used in turbocharges engines. It is incorporated between fuel pressure regulator of fuel rail and injector.
Aneroid is an emission control device which controls the emission of carbon dioxide during free engine acceleration.
Function of an aneroid device is to gradually increase the fuel pressure in fuel rail with the increase of air manifold pressure when speed of turbocharger and engine reach to a specific speed.
As a matter of fact, during low RPM or speed operation the fuel supply remains the same but air intake flow remains low before opening of turbocharger. As a result of which, there is incomplete combustion of fuel in combustion chamber and fuel comes out with exhaust gases and creates pollution.
So, aneroid device helps in regulating the fuel pressure with the increase and decrease in air intake pressure for the purpose of complete combustion of fuel.
Explanation of other options are given below:
Explanation of option a that is cold starting device: –
Cold starting device is a device which helps in starting the automotive engine in cold or extremely cold conditions.
Cold starting devices are as follow:
Glow plug: –
Glow plug is a cold starting device which aids in starting the automotive diesel engine in cold condition.
Glow plug is made from the material named silicon nitrite. Because silicon nitrite has excellent property to resistance to heat, thermal shock and corrosion which makes it suitable for glow plug. Furthermore, glow plug is also know as heater plug.
Function of Glow Plug: – When engine ignition is turned on, battery supplies the electric current to the element of glow plug. Electric current heats up the element and element turns to red hot with visible light.
As a matter of fact, glow plug is fitted on the cylinder head of diesel engine and element remains inside the combustion chamber.
When element heats up it heats the air fuel mixture and engine gets start even in extreme cold conditions. Glow plug works only one cycle of engine and after that it turns off automatically. Other cold starting devices are Air intake heater, fuel filter heaters etc.
Explanation of option c that is decompression device: –
Decompression device is used to reduce the pressure in combustion chamber to start the engine easily.
Decompression device consists a lever and cam surface which keeps the valve open for longer time to compensate decompression in combustion chamber.
Explanation of option d that is timing injection device: –
Timing injection device controls and regulate the fuel pressure during the injection of fuel in the combustion chamber.
Additionally, it also helps in controlling the pollution in the exhaust.
Question 3:- The most accurate dynamometer is the
Options:
(a) prony brake type
(b) hydraulic type
(c) swinging field type
(d) eddy current type
Question 4:- The frame may get distorted to a parallelogram shape due to
Options:
(a) weight of vehicle
(b) weight of passengers
(c) cornering force
(d) wheel impact with road obstacle
Question 5:- The maximum value of axial force at the clutch which a driver can apply while driving, without getting fatigued is approximately
Options:
(a) 10 N
(b) 100 N
(c) 500 N
(d) 5000 N
Question 6:- The maximum intensity of pressure which the clutch facing can withstand without being damaged is about
Options:
(a) 10 Pa
(b) 10 kPa
(c) 100 kPa
(d) 1000 kPa
Question 7:- Free pedal play in car clutches is about
Options:
(a) 3 mm
(b) 30 mm
(c) 60 mm
(d) 100 mm
Importance of these MCQs in MVI exam
It has been observed that many automobile engineering mcq have been asked in Motor Vehicle Inspector examinations in the same way as described in this website.
Question 8:- By using synchronizing device, the two involved adjacent gears have their speeds
Options:
(a) increased
(b) reduced
(c) equalized
(d) unequalised
Question 9:- In a simple epicyclic gear set, the output member to increase torque in reverse is always
Options:
(a) ring gear
(b) planet carrier
(c) sun gear
(d) none of the above
Question 10:- In a simple planetary gear set, the output member to increase torque is always the
Options:
(a) sun gear
(b) ring gear
(c) planet carrier
(d) none of the above
Read related Automobile Engineering MCQ
- Automobile Transmission system MCQ
1. Automobile Engineering MCQ on braking system-
This section of multiple choice question contains mcqs related to braking system of an automobile. These MCQ are important for AMVI, SSC JE and GATE examination point of view.
Topics included in braking system: Functioning of brake lining, construction of brake shoe, bleeding of brakes, braking surfaces, wheel cylinders, master cylinder, hydraulic braking system, braking faults, construction material and more.
2. Automobile Engineering Multiple Choice Question on I.C. Engine-
This section of multiple choice question contains mcqs related to Internal Combustion Engine which are used in modern automobile.
Topics included in I.C. Engine: Components of IC engine, construction of engine, faults of engine, causes overheating of engine, engine supporting and more.
3. Automobile Engineering MCQ on Steering system-
The understanding of automotive system is important to learn because it is very important topic of automobile engineering, especially for those who are preparing for any competitive exam.
Topics included in I.C. Engine: Functioning of steering system, construction of steering system, Toe-in, Toe-out, Camber angle, caster angle, steering mechanism, electric steering, hydraulic steering, steering alignment, steering rack etc. and more.
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