Gujarat Technological University 2010 Diploma in Hospital Management Automobile Electrical System - Question Paper

Q.1
(a) discuss the chemical procedures, with chemical equations, taking
place inside the battery during charging and discharging processes.
07
(b) discuss working of bendix drive mechanism. 04
(c) discuss torque characteristics of starter motor. 03
Q.2
(a) discuss working of an ignition system of four cylinder petrol engine
with wiring diagram.
07
(b) discuss working of flasher unit with wiring diagram. 07
OR
(b) discuss working of temperature guage with wiring diagram. 07
Q.3
(a) ans subsequent ques..
(i) discuss series and parallel circuits.
(ii) discuss effect of temperature on resistance of a conductor.
07
(b) ans subsequent ques..
(i) List advantages of earthed return system.
(ii) discuss battery ratings.
07
OR
Q.3 (a) ans subsequent ques..
(i) Draw symbols for condencor, motor and fuse.
(ii) discuss electromagnetism.
07
(b) ans subsequent ques..
(i) Differentiate positive and negative earthing methods.
(ii) discuss effect of temperature on specific gravity of battery.
07
Q.4
(a) discuss working principle of an alternator and state why current
regulator is not needed for an alternator.
07
(b) List requirements of a good charging system. 03
(c) discuss "reach" of spark plug. 04
OR
Q. four (a) State the differences ranging from alternator and generator and discuss
armature reaction in alternator.
07
(b) discuss the effect of belt tension on output of alternator. 03
(c) discuss any method of setting ignition timing for four stroke four cylinder
petrol engine.
04
Q.5
(a) Why voltage regulation is required? discuss with neat sketch any
one kind of voltage regulator used for an alternator.
07
(b) discuss with neat sketch working of horn relay. 04
(c) discuss working of a central door locking system. 03
OR
Q.5 (a) discuss fully transistorized regulator with wiring diagram. 07
(b) discuss with neat sketch working wiper motor. 04
(c) discuss working of a wind shield defroster. 03

Earning:   Approval pending.