Download GTU BE/B.Tech 2019 Summer 5th Sem Old 150906 Electrical Power Utilization And Traction Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Summer 5th Sem Old 150906 Electrical Power Utilization And Traction Previous Question Paper

1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ? V(OLD) EXAMINATION ? SUMMER 2019
Subject Code:150906 Date:10/06/2019

Subject Name:Electrical Power Utilization And Traction

Time:02:30 PM TO 05:00 PM Total Marks: 70

Instructions:

1. Attempt all questions.

2. Make suitable assumptions wherever necessary.

3. Figures to the right indicate full marks.

Q.1 (a) Explain factors effecting selection of drive 07
(b)
What do you mean by electric drive. Explain advantages of electric drive
07

Q.2 (a) Explain speed control of dc shunt motor using flux control method 07
(b) Explain torque- slip characteristic of three phase induction motor 07
OR
(b) Explain plugging braking of dc shunt motor 07

Q.3 (a) Compare AC and DC traction system. 07
(b) Explain the terms dead weight ,accelerating weight and adhesive weight in a
locomotive. Explain the factors affecting specific energy consumption
07
OR
Q.3 (a) Explain speed control methods of three phase induction motor 07
(b) Draw typical speed time curve for main line and derive expression for max
speed using trapezoidal speed time curve
07

Q.4 (a) Explain advantages of electric heating 07
(b) Explain eddy current heating 07
OR
Q.4 (a) Explain types of resistance welding 07
(b) Explain Ajax Wyatt furnace. 07

Q.5 (a) Explain laws of illumination 07
(b) Explain electro deposition and explain factors affecting it. 07
OR

Q.5 (a) State and explain faraday?s laws of electrolysis. 07
(b) Explain the principle of operation of a sodium vapor lamp 07

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