B.TechSemester 42021-22Manufacturing ProcessesKME403
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Manufacturing Processes (KME403) - AKTU Question Paper 2021-22

B.Tech · Semester 4 · Free PDF Download

This is the official AKTU Manufacturing Processes Previous Year Question Paper for B.Tech Semester 4, academic session 2021-22. Published by Dr. A.P.J. Abdul Kalam Technical University (AKTU/UPTU), Lucknow. Free PDF download — no login required.

Course:B.Tech
Semester:Semester 4
Session:2021-22
University:AKTU / UPTU

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Questions Asked in 2021-22

Manufacturing Processes (KME403) — complete question paper

Section AAttempt all q u e s t i o n s i n b r i e f . 2*10 = 20
  • a
    What is shrinkage allowance in casting? 1
  • b
    Differentiate between open di e forging and closed die forging? 1
  • c
    Differentiate between single point and multi point cutting tool. 2
  • d
    What are the advantaged of CNC over NC machines? 2
  • e
    What is meant by hardness of grinding wheel? 3
  • f
    Differentiate between dre ssing and truing process in grinding. 3
  • g
    What do you mean by straight polarity in arc welding? 4
  • h
    Differentiate between braz ing and soldering process? 4 (i) What is the function of electrolyte in ECM? 5 (j) What are the applications of water jet machining? 5
Section BAttempt any three o f t h e f o l l o w i n g : 10*3 = 30
  • a
    Differentiate the hot worki ng and cold working process. Jus tify which process is best suitable for wire drawing?
  • b
    What do you mean by taper turning operation? Explain any on e methods of taper turning with help of neat sketch
  • c
    How are grinding wheels spec ified? Clearly differentiate between grade and structure of a grinding wheel?
  • d
    Explain the working of atomic hydrogen welding with help of suitable diagram; also write down their specific applications and advantages and limitations?
  • e
    Write brief notes on all of the following : (i) Electron beam Machining (EBM) (ii) Ultrasonic Machining (USM) (iii) Laser beam machining (LBM)
Section CAttempt any one p a r t o f t h e f o l l o w i n g : 10*1 = 10
  • a
    Explain draft in rolling proce ss. Show that the maximum draft is given Where: µ is the coefficient of friction and R is the roll radius
  • b
    Explain the solidificatio n phenomena in casting. Also describe any five casting defects and their remedies in brief
  • a
    Explain Merchant’s force circ le diagram and derive the merc hant’s 2 shear angle relationship
  • b
    The following equation for tool life was obtained for HSS t ool. A 60 min tool life was obtained using the following cutting conditio n VT0.13f0.6d0.3= C. v = 40 m/min, f = 0.25 mm, d = 2.0 mm. Calculate the effect on tool life if speed, f eed and depth of cut are togethe r increased by 25% and also if they are incr eased individually by 25%; wher e f = feed, d = depth of cut, v = speed
  • a
    Show that maximum chip thickness t m in surface grinding, using grinding wheel of diameter D, is given by Where f = feed, C= No. of abrasive grains per unit area of grin ding wheel surface, d= depth of cut and rg is the ratio of grain width to uncut thickness per grit
  • b
    Write brief notes on all of the following
  • a
    The voltage-length characteristics of a direct current (DC) arc is given by V= (20+40l) Volts, where l is the length of arc in mm. The p ower source characteristics is approximated by a straight line with an open circuit voltage = 80 V and short circuit current = 1000 Amp. De termine the optimum arc length and corresponding arc power?
  • b
    Explain the principle of Resistance welding process. Discus s how heat balance is achieved in resistance spot welding?
  • a
    What is Abrasive jet machi ning (AJM)? Describe its working with suitable diagram. Also explain the effect of standoff distance and abrasive grit size on material removal rate in the
  • b
    Explain the mechanics of material removal in ECM Processes. I f current of 1500 amp is used, determine the volume rate of mater ial removal from the copper block. (Density of copper 8.96g/cm 3, valency 1 and gram atomic weight as 58.93)

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 — KME403

Questions that appeared in more than one session, found by comparing 2 years of Manufacturing Processes papers (2021-22, 2022-23)

2x

Differentiate between dre ssing and truing process in grinding. 3

Appeared in: 2021-22 · 2022-23

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