B.TechSemester 52023-24Advance WeldingKME055

Advance Welding (KME055) - AKTU Question Paper 2023-24

B.Tech · Semester 5 · Free PDF Download

This is the official AKTU Advance Welding Previous Year Question Paper for B.Tech Semester 5, academic session 2023-24. Published by Dr. A.P.J. Abdul Kalam Technical University (AKTU/UPTU), Lucknow. Free PDF download — no login required.

Course:B.Tech

Semester:Semester 5

Session:2023-24

University:AKTU / UPTU

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Questions Asked in 2023-24

Advance Welding (KME055) — complete question paper · 100 marks · 3 Hours

Section AAttempt all q u e s t i o n s i n b r i e f . 2 x 10 = 20

a
Describe arc blow. 2 1
b
Discuss the meaning of so lid-state welding. 2 1
c
Explain the working principle of friction welding. 2 2
d
Explain soldering. 2 2
e
Describe heat affected zone in brief. 2 3
f
Explain cooling rate. 2 3
g
Describe the formula fo r carbon equivalent. 2 4
h
Discuss the use of reclamation welding. 2 4 i. Explain weld distorti on in brief. 2 5 j. Describe residual stresses in welding in brief. 2 5

Section BAttempt any three o f t h e f o l l o w i n g : 10 x 3 = 30

a
The dc arc current has voltage – length characteristics as V = (20 + 40L) volts. The characteristics of power source is V = (80 – 0.08I) volts. Determine the optimum arc length and corresponding arc power
b
Describe: (i) Underwater welding (ii) Ultrasonic welding
c
Illustrate (i) Welding distortion (ii) Factors affecting changes in microstructure and mechanical properties of HAZ
d
Illustrate hardfacing with neat sketch. Also illustrate its advantages, limitations and applications
e
Explain various types of weld. Also discuss different types of weld joints

Section CAttempt any one p a r t o f t h e f o l l o w i n g : 10 x 1 = 10

a
Illustrate: (i) Comparison of welding with other fabrication processes (ii) Classification of welding processes
b
Explain the different types of metal transfer used in variou s types of arc welding process with neat sketch
a
Explain shielded metal arc welding with neat sketch. Discuss i t s advantages and limitations. Also describe the functions of flux
b
Describe: (i) Laser beam welding (ii) Gas tungsten arc welding
a
Illustrate peak temperature. For steel plates of 10 mm thick ness, arc welded at 20 volts, 200 amps with a speed of 5mm/sec, Calculate the peak temperature at a distance of 1.5 mm from the fusion bounda ry. The initial temperature of the plate is room temperature which is 2 50C. Heat transfer efficiency f 1 = 0.9, 𝜌𝑐 = 0.0044 J/mm 3 and melting point T m = 15100C, Where 𝜌 is density (g/mm3), 𝑐 = specific heat (J/g0C)
b
Illustrate: (i) Gas metal reaction (ii) Slag metal reaction
a
Explain in brief: (i) Welding of aluminium alloys (ii) Welding of cast iron
b
Describe: (i) Effect of alloying elements on weldability (ii) Cladding
a
Explain various types of weld defects with neat sketches alo ng with their causes and remedies
b
Describe: (i) Welding procedure specification (ii) Difference between destructive and non-destructive testing

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 — KME055

Questions that appeared in more than one session, found by comparing 3 years of Advance Welding papers (2021-22, 2022-23, 2023-24)

The dc arc current has voltage – length characteristics as V = (20 + 40L) volts. The characteristics of power source is V = (80 – 0.08I) volts. Determine the optimum arc length and corresponding arc power

Appeared in: 2021-22 · 2022-23 · 2023-24

Illustrate (i) Welding distortion (ii) Factors affecting changes in microstructure and mechanical properties of HAZ

Appeared in: 2021-22 · 2023-24

Explain the different types of metal transfer used in variou s types of arc welding process with neat sketch

Appeared in: 2021-22 · 2023-24

Illustrate: (i) Gas metal reaction (ii) Slag metal reaction

Appeared in: 2021-22 · 2023-24

Explain various types of weld defects with neat sketches alo ng with their causes and remedies

Appeared in: 2022-23 · 2023-24