ME
1353-AUTOMOBILE ENGINEERING
DEPARTMENT
OF MECHANICAL ENGINEERING QUESTION BANK
Subject
Name: AT1360- AUTOMOBILE ENGINEERING Year/Sem: III / VI
UNIT-I
VEHICLE STRUCTURE AND ENGINES
PART A (2 MARKS)
1. State
major types of automobiles according to the fuel used.
2. List any
four components of a chassis.
3. Mention
any two requirement of an automobile.
4. List any
four characteristics of a good chassis.
5. Give any
two requirement of good frame.
6. Define
cross wind force.
7. State any
four functions of lubrication.
8. State
purpose of providing radiator in cooling systems.
9. Name any
four air pollutants.
10. What do
you mean by Electronic Engine Management system?
PART B (16 MARKS )
01. Explain the construction of various frames
used in automobiles with neat sketch.
(16)
02. Discuss the Construction and working
principles of 3-way Catalytic controller (16)
03. Explain the following terms :
Load
distribution in frames
Frame types
with neat sketch
Frame
materials
Frame
testing. (16)
04. i)
Explain the operation of the typical turbocharger with sketch. (8)
ii) Discuss the principle of operation of
a four stroke cycle S.I. Engine with a neat sketch. (8)
05. With the
help of neat sketch explain in detail
about the construction and working of different engine
components? (16)
06. i)
What are the functions of a cooling system? (2)
ii) Sketch and explain different
types of lubrication systems used in automotive engines. (14)
07. i)
What do you know about emission norms? Discuss. (7)
ii) With a block diagram discuss the operational
features of electronics engine management system. (9)
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08. i)
What are the desirable properties of a good lubricant? (8)
ii)
Draw the layout of an automobile and indicate the various
components. (8)
09. Discuss various methods to reduce the level
of pollutants in the exhaust gases. (16)
UNIT II
ENGINE
AUXILLARY SYSTEM
PART A (2 MARKS)
1. What is
carburetor?
2. What are
the requirements of a spark plug?
3. List out
the main functions of a battery.
4. What is a
variable jet carburetor?
5. What is
the function of ORC in a starting motor?
6. Name the
components of battery coil ignition system used in vehicle.
7. What is
the purpose of Cut-out relay?
8. What are
the important units electronic fuel injection system?
9. Mention
the two ways of determining the stste of charge.
10. What are
the factors to be considered for comparing magneto and coil ignition system?
PART B (16 MARKS )
01. Briefly discuss the working principle of a
simple Carburator system. (16)
02. Describe
the construction and working principles of Battery-Coil ignition
system. (16)
03. i) What
is carburetion? Explain principle of carburetor. (8)
ii) With suitable sketch explain the
principle of the MPFI. (8)
04. i)
Explain CDI ignition system with a suitable diagram. (8)
ii) Sketch and explain the starting
circuit of the cranking motor. (8)
05. i) Differentiate
Electronic Fuel Injection system from Conventional Fuel
Injection system. (4)
ii) Describe about Multi Point Fuel
Injection System of an automotive engine.
(12)
06. With the help of neat sketches explain in
detail about Battery, Magneto coil
and Electronic Ignition Systems. (16)
07. i)
Discuss the construction, operation and maintenance of lead acid
battery. (8)
ii) Explain the different tests
conducted to assertain the condition of
the battery. (8)
08. With suitable sketches explain mono point and
multi point fuel injection systems and
bring out the comparative features. (16)
09. i)
Explain the working features of a starter motor with a neat diagram. (8)
ii)
Explain the operation of a MPFI system and compare it with TBI system. (8)
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UNIT III
TRANSMISSION
SYSTEM
PART A (2 MARKS)
1. What are the function of clutch?
2. What is
the function of Synchromesh unit in a gear box?
3. State the
function of differential unit.
4. What are
the functions of universal joint?
5. List out
the functions of a propeller shaft.
6. Why
epicyclic gears are used in overdrive units?
7. Classify
gear box.
8. Why is
double cluching technique used?
9. How
torque converter gearbox differs from fluid flywheel?
10. State
the phenomenon of torque multiplication.
PART B (16 MARKS )
01. Explain the construction and working principles
of a typical
automobile
gear box. (16)
02. Discuss the working principles of
(i) Torque tube drive. (8)
(ii) Hotchkiss drive. (8)
03. i)
What is clutch? Explain the operation of centrifugal clutch. (8)
ii)
Explain the working principle and application of a freewheel drive in a
transmission
system. (8)
04. i) Explain different type of rear axles with
neat sketch. (10)
ii) What is differential? Explain its
operation with sketch. (6)
05. Explain
in detail about any one type of Synchromesh Gear Box with neat
sketches.
(16)
06. i) What
are the effects of wheel bearing layout on axle loading? (8)
ii)
What do you mean by double reduction axle? Explain in detail
(8)
07. i)
What are the features of a good quality clutch? Explain the working of
multi plate clutch
with a neat sketch. (12)
ii) What is the function of a clutch?
List out the requirement of a clutch.
(4)
08. Discuss the fully floating axle and
three-quarter floating axle with neat sketches. (16)
09. Explain with suitable sketches the
operational features of sliding mesh gearbox. (16)
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UNIT IV
STEERING
BRAKES AND SUSPENSION
PART A (2 MARKS)
1. List out
the types of front axle.
2. What is
meant by bleeding of brakes?
3. Classify
independent rear suspension system.
4. What are
the functions of suspension system?
5. Define
slip angle.
6. Define
overall steering ratio.
7. What is
meant by centre point steering?
8. Define
caster angle.
9. What is
meant by term ‘tread’?
10. Compare
the advantages of radial tyre over cross ply tyre.
PART B (16 MARKS )
01. Sketch and explain the working of power
steering system. (16)
02. Explain
the working principles of Hydraulic braking system with simple
sketches. (16)
03. i) Sketch and explain various steering
geometries. (8)
ii) Describe with the help of simple
diagram the different type of stub axles.
(8)
04. i) Give short note on leaf spring suspension
system. (4)
ii) Explain the operation of Hydraulic
braking system with neat sketch. (12)
05. With the
aid of neat sketches, Explain in detai l about construction and
working of
disk brake system. (16)
06. Explain
in detail about a typical front suspension with neat sketches. (16)
07. i)
Discuss air suspension system with a sketch. (8)
ii) How wheel alignment done in
automobiles? Explain. (8)
08. i) Explain
with the help of a suitable sketch the construction of the disc wheel. (8)
ii) Draw and explain the cross section
of an automobile tyre. (8)
09. Discuss the construction details of leaf,
coil and torsion bar springs. (16) ME
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10. Sketch and explain a typical power steering
gear box and compare it with ordinary
steering
system. (16)
11. Discuss the working of telescopic suspension
system used in cars. (16)
UNIT V
ALTERNATIVE
ENERGY SOURCES
PART A (2 MARKS)
1. What is
meant by a fuel cell and how it works?
2. List down
the properties of alternate fuels.
3. State any
two advantages of methane as fuel in automobiles.
4. What is
meant by reformulated and oxygenated gasoline?
.
5. What is meant by reversible fuel cell?
6. Mention the various methods of storing
hydrogen.
7. What is
meant by transesterification?
8. Why
biodiesel mixed with conventional diesel?
9. How can
be fermentation process defined?
10. What are
the advantages and limitations of alcohols are engine fuel?
PART B (16 MARKS )
01. Discuss the operation of an LPG propelled
Automobile with neat sketch. (16)
02. Explain the construction and working
principle of Fuel cells, with simple
sketches. (16)
03. How bio diesel is produced? Explain and its
usage in automobile. (16)
04. Explain the operation of Hydrogen fueled
vehicle with neat sketch. (16)
05. Discuss in detail about different alternate
fuels for automotive engines
with respect
to the following aspects :
(i) Emission
(ii) Cost
(iii)
Reliability
(iv)
Availability
(v) Engine
modifications needed. (16) ME
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06. i) What is fuel cell? What are the advantages
of Fuel Cells? (4)
ii) Explain in detail about different
types of Hybrid vehicle
constructions
with neat sketches. (12)
07. i)
Explain the method of biodiesel production through transesterification
process. (8)
ii) Discuss the alternative fuel
suitable for compression ignition engine driven
automobiles. (8)
08. i) Briefly explain the methods of using
natural gas as diesel engine fuel. (8)
ii) List out the different properties of
hydrogen relevant to its use of I.C. Engines. (8)
09. i)
Explain the series and parallel hybrid drive trains. (8)
ii) Discuss the drive system of an
electric vehicle. (8)
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