PAPER -1 WELDER (THEORY) SEMESTER – II july (SESSION 2017 -2018) – NSQF LEVEL -4

21 What is the name of the weld joint?

a) Lap joint
b) Butt – joint
c) Tee – joint
d) Outside corner joint

22 What is the name of the part marked ‘X’ in the purging arrangement pipe joint?

a) Pipe
b) Joint
c) Plywood
d) Purging gas inlet

23 What is the name of the defect if the pin holes occur in GTAW process?
a) Cracking
b) Porosity
c) Under cut
d) Lack of penetration

24 What is the name of the defect in the weld?

a) Porosity
b) Incomplete penetration
c) Lack of fusion
d) Under cut

25 Which method is low cost for cutting stainless steel?
a) Drilling
b) Gas cutting
c) Hacksawing
d) Plasma arc cutting

26 What is the name of the part marked ‘X’ in dual flow plasma arc welding?

a) Electrode
b) Orifice gas
c) Shielding gas
d) Constructing nozzle

27 In which of the following welding process, the deposit rate and speed is high?
a) Submerged arc welding
b) MIG welding
c) MAG welding
d) TIG welding

28 Which welding process is limited to flat and horizontal position?
a) TIG welding
b) MIG welding
c) Submerged arc welding
d) Flux cored arc welding

29 Which type of thermit contains a mixture of finely divided aluminium and iron oxide?
a) Rail welding thermit
b) Forging thermit
c) Cast iron thermit
d) Plain thermit

30 In which of the following welding process, the plates of 25 mm or more can be joined in one pass?
a) Electro slag welding
b) Thermit welding
c) MAG welding
d) Submerged arc welding