Gujarat Technological UniversitySummer 2026 examination

GTU 3161920 Automobile Engineering Summer 2026 Question Paper & PDF

B.E. · Mechanical Engineering · Semester 6 · Subject code 3161920
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Total
70 marks
To pass
23 marks (33%)
Duration
2.5 Hours 10:30 AM – 1:00 PM
Questions
5 with internal choice
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Q.1

14 Marks
(a)
3 marks

Classify automobiles also discuss how these classifications influence vehicle design, performance, and application suitability.

(b)
4 marks

With neat sketch explain the general layout of an automobile chassis and what are the functional requirements of a vehicle body?

(c)
7 marks

Describe the ladder frame, X-frame chassis construction and compare their structural characteristics, load distribution, and suitability for different categories of vehicles.

Q.2

14 Marks
(a)
3 marks

Explain the importance of aerodynamics in automobile body design and discuss terms drag, lift, and stability.

(b)
4 marks

Explain how different forces acting on a vehicle interact under real driving conditions.

(c)
7 marks

Derive and analyze the expression for rolling resistance and explain how parameters like tire pressure, road surface, and vehicle weight influence it.

(c)
7 marks

Explain the following terms: Dynamic factor, weight transfer, tractive force, grade resistance

Q.3

14 Marks
(a)
3 marks

With neat sketch explain construction and working of single plate, where are they used and why?

(b)
4 marks
Compare sliding mesh, constant mesh, and synchromesh gearboxes.
(c)
7 marks

Explain the construction and working of Hotchkiss and torque tube drives. discuss their role in transmitting power under varying alignment conditions.

(a)
3 marks
State function and objectives of suspension system.
(b)
4 marks

Explain the construction and working of front axles. justify the selection of a suitable axle type for a heavy commercial vehicle.

(c)
7 marks

Compare manual transmission, automatic transmission, and Continuously Variable Transmission (CVT) systems in terms of fuel efficiency, driver comfort, complexity, and suitability for urban and highway driving.

Q.4

14 Marks
(a)
3 marks
Classify different types of automobile wheels.
(b)
4 marks
Discuss the constituents of tyre materials and describe the construction of a tyre.
(c)
7 marks

Define the following terms : camber angle, caster angle, kingpin inclination, toe-in, toe-out, understeer, oversteer.

(a)
3 marks
Explain different types of tyre wear patterns.
(b)
4 marks
Discuss important tyre properties which affects vehicle performance.
(c)
7 marks

Explain the working principles of ABS (Anti-lock Braking System) and EBD (Electronic Brake force Distribution). list their advantages over conventional braking systems.

Q.5

14 Marks
(a)
3 marks
Explain the working principle of regenerative braking.
(b)
4 marks
Classify different types of hybrid vehicles (series, parallel, series-parallel).
(c)
7 marks

Discuss the working and effectiveness of seat belts and airbag systems. Evaluate their contribution to reducing injury severity during collisions

(a)
3 marks
Explain the layout and major components of an Electric Vehicle (EV).
(b)
4 marks

Discuss different types of batteries used in EVs explain their performance in terms of energy density, lifecycle, safety, and charging characteristics.

(c)
7 marks
Describe the working of fuel gauge of an automobile.

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About this paper

Official Gujarat Technological University (GTU) examination paper for Automobile Engineering (Summer 2026, B.E. · Mechanical Engineering, Sem 6). Features complete 70-mark regular & remedial examination pattern, official marking distribution across all 5 questions, and direct 1-click official PDF download.

Transcribed for student exam preparation from Gujarat Technological University official examination archives. Questions, syllabus guidelines, and curriculum marking schemes remain the intellectual property of Gujarat Technological University.

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