11 What is the name of the part marked ‘X’ in flux cored arc welding?
a) Flux cored wire
b) Contact tube
c) Slag covering
d) Nozzle
12 What is the name of the control of ignition, if the time taken for the welding current to
reach the maximum value from the zero current?
a) Up slope
b) Pre flow
c) Down slope
d) Forced flow
13 What is the name of the part marked ‘X*?
a) Cap
b) Switch
c) Handle
d) Washer
14 What is the colour of pure tungsten electrodes used for TIG welding?
a) Green
b) Black
c) Yellow
d) Orange
15 Which part of the TIG torch is the storage area for the excess tungsten?
a) Leads
b) Back caps
c) Collet
d) Ceramic nozzles
16 What is the temperature produced by GTAW process?
a) 2500°F
b) 3250°F
c) 3000°F
d) 3500°F
17 What is the name of the part marked ‘X’ in the narrow gap welding with arc rotation?
a) Contact tip
b) Bearing block
c) Rotating motor
d) Electrode nozzle
18 Which welding process is used in hitech industries?
a) MIG welding
b) TIG welding
c) MAG welding
d) SMA welding
19 Which method of metal transfer is used with most of the common welding wire electrodes in GMAW?
a) Pulse transfer
b) Spray transfer
c) Globular transfer
d) Short circuit transfer
20 What is the name of the weld joint?
a) Lap joint
b) Butt – joint
c) Corner joint
d) Tee – joint
Welder