Maharashtra State Board of Technical Education 2009 Diploma Fabrication Engineering Test of Welding Technology - Question Paper

Sample Test Paper-I
Course : Fabrication Technology and Erection Engineering
Course Code : FC
Semester : Fourth
Subject : Welding Technology
Marks : 20 Time: one Hour
Instruction:
1. All ques. are compulsory.
2. Figures to the right shows full marks.
3. Draw neat sketches wherever needed.
4. presume suitable data if necessary.
Q. 1) ans any 2 of the following: 04 Marks
a) elaborate the kinds of weld joints?
b) describe duty cycle for a welding power source?
c) What is arc blow?
Q.2) ans any 2 of the following: 08 Marks
a) Draw the neat labelled sketch of neutral flame in any acetylene welding and state two
uses of it?
b) discuss the operation of high pressure welding torch with neat labelled diagram?
c) discuss the construction & working of a carbide to water acetylene generator with
neat labelled diagram?
Q.3) ans any 2 of the following: 08 Marks
a) Differentiate short circuit & globular metal transfer mechanism with respect to
(i) Voltage (ii) Arc length (iii) Welding process (iv) Diagram
b) State the Specification of Welding electrode & write the designation of every term
involved in it?
c) State 4 requirements of an arc welding power source?

Earning:   Approval pending.