Plasma arc welding Multiple Choice Questions ITI&CTI

Plasma arc welding MCQ ITI&CTI

Plasma arc welding MCQ, Plasma welding MCQ, Plasma arc welding MCQ ITI&CTI

 

1. Plasma refers to.

A) Hot ionized gas
B) Electrode holder
C) Rectifier
D) Inverter

ANSWER= (B) Hot ionized gas

 

2. The following welding process has greater directional stability due to the passage of arc through a copper orifice is…

A) Oxy-acetylene welding
B) Gas metal arc welding (MIG)
C) Gas tungsten arc welding (TIG)
D) Plasma arc welding

ANSWER= (D) Plasma arc welding

 

3. The high-temperature plasma jet is suitable for.

A) Welding
B) Cutting
C) Gouging
D) All of the above

ANSWER= (D) All of the above

 

4. In the non-transferred plasma arc welding process, an arc is struck between the tungsten electrode and ________

A) Workpiece
B) Earth clamp
C) Insulated copper nozzle
D) Gas cylinder

ANSWER= (C) Insulated copper nozzle

 

5. The temperature range obtained by the Plasma arc welding process is about.

A)5000°C to 10000°C
B)3000°C to 8000°C
C)8000°C to 12000°C
D)20000°C to 30000°C

ANSWER= (D) 20000°C to 30000°C

 

6.In a plasma welding torch a tungsten electrode is located within the nozzle, which is made up of_______

A) Ceramic
B) Copper
C) Brass
D) Tin

ANSWER= (B) Copper

 

7. Which of the following are not common when compared to GTAW & PAW?

A) Non-consumable tungsten electrode
B) Constricting nozzle
C) Shielding gas
D) Gas cylinder

ANSWER= (B) Constricting nozzle

 

8.What technique is employed with PAW to produce full penetration welds without edge preparation?

A) Stringer bead
B) Weave bead
C) Keyhole
D) Backstep

ANSWER= (C) Keyhole

 

9. What is the maximum temperature of the plasma arc cutting process

A) 14000°C
B) 10000°C
C) 8000°C
D) 6000°C

ANSWER= (A) 14000°C