FREE STANDARDIZED TESTS AND STUDY GAMES ABOUT

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FREE STANDARDIZED TESTS AND STUDY GAMES ABOUT

NOCTI REVIEW WELDING

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -24 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: A common welding problem is poor penetration.

One of the causes of this problem is

a) Electrode too small

b) Parts clamped incorrectly

c) Current too low

d) Arc too long

Answer:

Current too low

Question 2: In GTAW of aluminum, the most common shielding

gas used is

a) Pure argon

• 75% argon / 25% helium

• 10% argon / 90% helium

d) Pure helium

Answer:

Pure argon

Question 3: If one pound of E?6010 SMAW electrode costs

$0.452 per pound, 80 pounds would cost 34.27 36.16 38.53 40.12

Answer:

36.16

Question 4: Use the same style cutting tip for both natural gas

and Acetylene Propane Propylene Mapp

Answer:

Propane

Question 5: A consumable in the GTAW process would include

a) Voltage

b) Amperage

c) Collets

d) Resistance

Answer:

Collets

Question 6: An example of an inert gas is

a) Helium

b) Oxygen

c) Chlorine

d) Nitrogen dioxide

Answer:

Helium Question 7: . A class A fire extinguisher can be safely used on a/an________ fire.Wood Grease Electrical Magnesium

Answer:

Wood

Question 8: When medium gas welding, a number _______ filter

lens should be used.2 4 6 8

Answer:

6

Question 9: On GMAW welding machine controls, the wire feed

speed is used to control

a) Voltage

b) Amperage

c) Polarity

d) Resistance

Answer:

Amperage

Question 10: A neutral oxygen?acetylene flame has a temperature

range of 500 to 550 ?F 580 to 630 ?F 5000 to 5500 ?F 5800 to 6300 ?F

Answer:

5800 to 6300 ?F

Question 11: A constant current power supply is required for

a) GMAW

b) GTAW

c) FCAW

d) SAW

Answer:

GTAW

Question 12: In GMAW, pieces of electrode sticking to the weld

joint are known as

a) Projectors

b) Stragglers

c) Hairlines

d) Whiskers

Answer:

Whiskers