Question 1

1. Oxygen and acetylene hoses should be color-coded. Whichof the given answers is correct?

Accepted Answer

oxygen green or black,acetylene red

Answer

oxygen green and acetyleneblack or red

Answer

oxygen green or black,acetylene red or black

Answer

oxygen green, acetylene red

Question 2

2. It is considered as a line pressure gauge.

Accepted Answer

a regulator

Answer

a. a high-pressure gauge

Answer

a low-pressure gauge

Answer

valve gauge

Question 3

3. John practices cleaning the surface and edges of metalregularly for safety purposes but what could be the other important reason?

Accepted Answer

It makes it easy to fit-up joint.

Answer

It provides a good appearance of the cut materials

Answer

Dirt and other substances are detrimental to weldquality.

Answer

For the sake of following the teacher’s instruction.

Question 4

4. The process of permanently joining metals by means of heat and heat is called

Accepted Answer

welding

Answer

ironing

Answer

soldering

Answer

brazing

Question 5

5. What does the abbreviation SMAW mean?

Accepted Answer

Shielded Metal Arc Welding

Answer

Shielded Metallic andWelding

Answer

Shield Metal Arc Welding

Answer

Shielded Metal and Welding

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