B.TechSemester 72022-23Utilization Of Electrical Energy Electric TractionKEE079

Utilization Of Electrical Energy Electric Traction (KEE079) - AKTU Question Paper 2022-23

B.Tech · Semester 7 · Free PDF Download

This is the official AKTU Utilization Of Electrical Energy Electric Traction Previous Year Question Paper for B.Tech Semester 7, academic session 2022-23. Published by Dr. A.P.J. Abdul Kalam Technical University (AKTU/UPTU), Lucknow. Free PDF download — no login required.

Course:B.Tech

Semester:Semester 7

Session:2022-23

University:AKTU / UPTU

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Questions Asked in 2022-23

Utilization Of Electrical Energy Electric Traction (KEE079) — complete question paper

Section AAttempt all questions in brief. 2 x 10 = 20

a
What is D.C. Arc Heating?
b
Which method of heating is not dependent on the frequency of supply?
c
What is TIG and MIG welding?
d
What is Faraday's First law of electrolysis?
e
What is the basic nature of light? Explain
f
State the laws of illumination
g
Draw and explain speed-time curve for traction system
h
What is meant by the term adhesive weight? (i) What various traction systems you know of? (j) What are the advantages and disadvantages of diesel electric traction?

Section BAttempt any three of the following: 10 x 3= 30

a
Explain with the help of a neat sketch the working of Ajax Wya tt furnace. What is its field of application?
b
Describe with neat sketches the various methods of electric re sistance welding. Give its merits and demerits with respect to arc welding
c
A lamp with reflector is mounted 10 m above the centre of a ci rcular area of 20 m diameter; if the combination of t he lamp and reflector gives a uniform C.P. of 800 over the circular area, determine the maximum and minimum illum ination produced on the area
d
Describe different systems of track electrification
e
Discuss the suitability of series motor for traction duties wi th the help of characteristic curve

Section CAttempt any one part of the following: 10 x 1= 10

a
Explain different methods of induction heating. Give some appl ication of induction heating
b
Calculate the efficiency of a high frequency induction furnace which takes 10 minutes to melt 1.8 kg of aluminium. The input to the furnace b eing 4.8 kW and initial temperature 150 C. Specific heat of aluminium = 0.88 kJ/ kg 0 C; melting point of aluminium = 6600C; latent heat of fusion of aluminium = 32 kJ/ kg; 1 kJ = 2.78 x 10-4 kWh
a
Discuss the principle of arc welding and the difference betwee n carbon and metallic arc welding and their relative merits. Compare the AC and DC sy stems of metallic arc welding
b
What is electro-deposition? Expl ain in detail various factors which have effect on the appearance and quality of the deposited surface
a
Explain the working of fluorescen t tube with the help of circuit diagram giving the function of various parts
b
Define air conditioning. On what factor does the air conditioning depends? Explain in Detail
a
What are different types of functions performed by the tractiv e effort developed by
b
A train has schedule speed of 30 Kmph over a level track, distance between stations being 1 Km. Station stopping time is 20 seconds. Assuming braking retardation of 3 Kmphps and maximum speed 25 % greater than average speed, calcu late acceleration required to run the service
a
Explain the working principle of metadyne control of traction motor. What are merits and demerits of this control?
b
How direction of rotation of a traction motor is reversed? Wha t are the advantages and disadvantages of thyristor control of traction motors?

Question text is extracted from the official AKTU question paper PDF above. Hindi translations are omitted — every question is printed in English in the original paper. Last verified: 2026-08-23.

Repeated Questions — KEE079

Questions that appeared in more than one session, found by comparing 2 years of Utilization Of Electrical Energy Electric Traction papers (2022-23, 2024-25)

Explain with the help of a neat sketch the working of Ajax Wya tt furnace. What is its field of application?

Appeared in: 2022-23 · 2024-25

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