PTU B.Tech Mechanical Engineering 3rd Sem Manufacturing Processes–1 Exam paper

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Here I am giving you question paper for PTU B.Tech in Mechanical Engineering 3rd Sem. Manufacturing Processes–1 Exam in PDF file attached with it so you can get it easily..

QI) (10x2:20)
a) Define pattern.
b) What do you understand by term allowances?
c) Differentiate between soldering and brazing.
d) How selection of electrodes is done?
e) Define arc stability.
0 What are risers and what are their functions?
g) What do you understand by directional solidification?
h) What is core baking?
i) What do you understand by arc blow?
j) What are various materials for patterns?
J-s64 [812e] P,TO.

Section - B
(4 x 5: 2A)
e2) What are various moulding sand compositions and what are moulding sand
properties?
e3) What is the principle of gas welding and what are various types of flames?
04) What is the principte of resistance welding? Explain spot welding technique.
QS) What are moulding machines? What are various types of cores and core
sands used?
ef) Explain with help of neat sketch the working of electron beam welding and
also mention its process parameters and give its applications.