Seat No.: Enrolment
GUJARAT TECHNOLOGICAL UNIVERSITY
B.VOC. -SEMESTER 1(NEW SYLLABUS) EXAMINATION- WINTER 2018
Subject Code: 1110102 Date: 17-01-2019
Subject Name: Automobile Electrical Equipment
Time: 10:30 AM to 12:30 PM Total Marks: 50
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1

What do you mean by wiring harness?
03

What do you mean by voltage regulator?
02

Compare DC Generator Alternator.
05
Q.2

Draw neat labelled diagram of lead acid battery.
05

What do you mean by Regulator? Brief about current and voltage regulator,
05
OR

Compare DC Generator Regulator Alternator Regulator
05
Q.3

Brief each cable starting systems cables, general purpose cables high-tension cables
05

Why negative earthing is preferred over Positive earthing?
03

List out different parts of DC generator
02
OR
Q.3

Brief need of each Cable connectors, circuit breakers, plastic fibre-optic wires, printed circuits. Fuses in circuits.
05

Explain Earth-return systems in wiring
03

Why automobile required DC generator Charging system?
02
Q.4

Explain the principle, construction working of a lead acid battery.
05

How hydrometer is used to measure specific gravity of electrolyte
03

Enlist types of alternator.
02
OR
Q.4

Explain the principle, construction working of a alkaline battery.
05

Why is battery cells connected in series or parallel?
03

Need of Commutation after alternator?
02
Q.5

Explain the principle, Construction and working of DC generator.
05

Explain the principle, Construction and working of alternator.
05
OR
Q.5

Write short note on Armature Reaction
05

Explain different types of regulators for alternator.
05