Maharashtra State Board of Technical Education 2012-4th Sem Diploma Automobile Engineering for in Subject Automobile Systems(12098) - Question Paper
MSBTE Sample ques. Paper for Diploma in Automobile Engineering
Fourth Semester
Subject Automobile Systems(12098)
Sample Question Paper
Scheme - E
Course Name : Automobile Engineering Course Code : AE Semester : Fourth Subject Title : Automobile Systems Marks : 100
Instructions: 1 ] All questions are compulsory.
12098,
Time: J4lJllrc
2] Figures to the right indicate full marks.
3] Use of non-programmable calculator is permissible.
4] Illustrate your answer with neat sketches wherever necessary.
5] Preferably, write the answers in sequential order.
Q.l A Attempt any SIX of the following. (06 x 2 = 12)
a) Define Castor. J
b) Draw and label sketch of Reverse EUioTfype stub axle.
c) List four types of steering gearboxes;
d) List two functions of suspension system.
e) State the meaning of term Unsprung weight.
0 What is Air Resistance?
g) Define Rolling?
h) What is Gradability?
Q.l B Attempt any TWO of the following. (2 x 4=08)
-a) List four properties of Brake fluid?
B) Why Shock Absorber is provided with leaf spring,
c) Draw a labeled sketch of front wheel assembly.
b) Explain the working of Air Bag.
c) What are the different human comfort conditions considered in car air conditioning?
d) State the advantages of Air suspension system over conventional metal spring.
e) Draw a layout of an Air braking system. State two advantages of it.
0 List the materials used in body construction of heavy vehicles.
Q.3 Attempt any FOtR of the following. (4 x 4=1%-
a) Write four properties of Refrigerants.
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b) Front wheels are provided with disc brakes & rear wheels with drmn%ake in cars, state true or false with reasons. r
c) State the condition for stability of vehicle on slope.
d) State the meaning of term streamlining? State advantages of streamlined vehicle body.
e) How temperature and humidity is controlled in car Atf>rfeytioning.
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Q.4 Attempt any TWO of the following. (8x2= 16)
a) Draw a neat labeled sketch of Recirculating !! type steering gearbox and explain its working.
b) What is the necessity of Antilock braking system and explain its working.
c) Draw a layout of Electronic Power steering and state its advantages.
Q.5 Attempt any TWO of the following. (8x2= 16)
a) Describe the working of anti roll device of Front axle independent suspension.
b) State the need of protective and anticorrosive treatment. Write the procedure adapted for the treatment.
c) Draw a layout of Hydraufically operated Air assisted braking system and state the function of unloader valve and pressure regulating valve.
Q.6 Attempt any TWO of the following. (8x2= 16)
a) Draw a layout of Vapor compression system and explain its working.
b) What is the effect of castor and camber on stability of vehicle.
c) Draw a sketch of Mc-Pherson strut type independent suspension. Label the components and Write two advantages and two disadvantages of front independent suspension system
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| Earning: Approval pending. |
