ITI & CTI welding quiz questions and answers part-11

 Welding Questions and Answers 

welding quiz

Welding objective: Types of questions and answers in welding, welding, welding quiz questions, and answers. 

 

1. 1. For FCAW, the second digit (1) in an electrode marked (E71T-5) refers to

A) Strength;
B) Welding position
C) Chemical composition
D) Usability

ANSWER= (B) Welding position

 

2. The metal transfer considered the least desirable of the three major GMAW variations is

A) Short-Circuiting
B) Spray Arc
C) Globular
D) Double-U-groove.

ANSWER= (C) Globular

 

3. Using GMAW, the more recommended metal transfer for welding stainless steel is

A) Spray-arc
B) Vertical welding
C) Short-circuiting
D) Globular

ANSWER= (C)Short-circuiting

 

Basic types of joints in welding:- click here

4. The carbon steel electrodes of choice generally used in GMAW are?

A) ER308L and ER309L
B) ER70S-3 and ER70S-6
C) ER70S-2, ER70S-4
D) Answers a and b are correct

ANSWER= (B) ER70S-3 and ER70S-6

 

5. Using GMAW and short-circuit transfer mode, the most common shielding gas for carbon steel electrodes are

A) 15%-Ar and 25% CO2
B) 75%-Ar and 15% CO2
C) 75%-Ar and 25% CO2
D) 15%-Ar and 85% CO2

ANSWER= (C) 75%-Ar and 25% CO2

 

6. In GMAW, the more useful welding transfer technique for joining thin materials in any position is:

A) Short-arc welding
B) 1G welding position
C) Spray-arc welding
D) Flat welding position

ANSWER= (A) Short-arc welding

 

7. The shielding gas, recommended position, and electrode size, when welding aluminum using the spray-arc process at minimum 95A could be:

A) Argon, horizontal position, 0.045 in
B) Helium, flat position, 0.035 in
C) Argon, flat position, 0.030 in.
D) None of the above.

ANSWER= (C)Argon, flat position, 0.030 in.

 

8. Flux-cored electrode is:

A) A continuous, GMAW tubular electrode wire specifically designed to weld mild steels using only the process FCAW;
B) A continuous, GMAW tubular electrode wire specifically designed to weld mild steels using either CO2 gas or Argon-CO2
C) A continuous, GMAW tubular electrode wire specifically designed to weld special alloy steels using either CO2 gas or Argon-CO2
D) A continuous, FCAW tubular electrode wire specifically designed to relieve stresses in the first weld.

ANSWER= (B) A continuous, GMAW tubular electrode wire specifically designed to weld mild steels using either CO2 gas or Argon-CO2

 

9. What could be the shielding gas flow requirements for small weld pools using short-circuiting and pulsed-spray and globular transfer?

A) For short-circuiting and pulsed-spray about 15 l/min (0.53 ft³/min)is generally suitable, whereas for globular transfer around 10 l/min (0.35 ft³/min) is preferred.
B) For short-circuiting and pulsed-spray about 10 l/min (0.35 ft³/min) is generally suitable, whereas for globular transfer, around 15 l/min (0.53 ft³/min) is preferred.
C) For globular transfer about 10 l/min (0.35 ft³/min) is generally suitable, whereas for short-circuiting and pulsed-spray around 15 l/min (0.53 ft³/min) is preferred.
D) None of the above.

ANSWER= (B) For short-circuiting and pulsed-spray about 10 l/min (0.35 ft³/min) is generally suitable, whereas for globular transfer, around 15 l/min (0.53 ft³/min) is preferred.

 

10. Using GMAW, how argon can be used for welding ferrous materials?

A) Argon and most oxygen (O2) shielding gases are commonly used for welding ferrous materials, however, the aluminum oxide will form;
B) Argon is combined with elements for oxides which are released from the weld puddle in the form of slag and scale, for welding ferrous materials;
C) Argon is an active gas, used for welding ferrous materials, but produces an oxidizing effect, that can be consistently free of porosity and defects
D)Argon is an inert gas always mixed with other gases such as oxygen, helium, hydrogen, carbon dioxide, and/or nitrogen, for welding ferrous materials.

ANSWER= (D) Argon is an inert gas always mixed with other gases such as oxygen, helium, hydrogen, carbon dioxide, and/or nitrogen, for welding ferrous materials.

 

11. Which of the following is not an essential element of an FCAW system?

A) Constant-voltage power supply;
B) External shielding gas
C) Tubular electrode
D) Wire feeder

ANSWER= (D) Wire feeder

 

12. Which of the following is not an essential element of a Flux-cored arc welding system?

A) Constant-voltage
B) External shielding gas
C) Tubular electrode
D) Wire feeder.

ANSWER= (D) Wire feeder.

 

13. When welding aluminum with the GTAW process, what type of welding current is most commonly used?

A) DCEP
B) DCEN
C) AC c
D) Answers a and b above

ANSWER= (A) AC

 

14. The welding processes SAW and ESW are similar in that:

A) Both are an arc welding process
B) Both use shielding gases;
C) Both use a granular flux, which becomes molten;
D) All of the above

ANSWER= (C)Both use a granular flux, which becomes molten;

 

15.What welding process produces welds in a single pass, with the progression vertically upward along the joint?

A) SAW
B) ESW
C) FCAW
D) Answers a and b above.

ANSWER= (B) ESW