Question

a. acetylene and oxygen
d. natural gas and
b. methane gas and oxygen

1. which of the following test is used to check the external discontinuities?

a. visual inspection
c. bend test
b. ultrasonic test
d. radiographic test

1. this type of electrode needs to be stored in their original factory seal or an acceptable storage oven?

a. e7018
c. e7024
b. e6011
d. all the above

1. the most appropriate and proper position for storing acetylene cylinders is?

a. horizontal position
c. upright position
b. inclined position
d. upleft position

1. in smaw, when the polarity is set to the dcen, it is also known as?

a. straight polarity
c. dc polarity
b. right polarity
d. ac polarity

Explanation:

Step1: For question 8

Visual inspection is a common method to check external discontinuities.

Step2: For question 9

E7018, E6011 and E7024 electrodes may need to be stored in original factory seal or acceptable storage oven.

Step3: For question 10

Acetylene cylinders are best stored in upright position to prevent liquid acetone from flowing out.

Step4: For question 11

In SMAW, when polarity is set to DCEN, it is also known as straight polarity.

Answer:

a. Visual inspection
d. All the above
c. Upright position
a. Straight polarity