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NOCTI practice

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9th - 12th Grade

NOCTI practice
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A class A fire extinguisher can be safely used on a/an ____ fire.

wood

grease

electrical

magnesium

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When welding in a confined space, the welder must have

all equipment in the confined space

a second welder inside the space

an approved breathing device

a watchperson outside the space

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

On an OFC set-up, the hose with the right-handed thread fittings connects to which gas?

acetylene

argon

oxygen

C-25

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a ferrous metal?

aluminum

mild steel

copper

lead

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Welding with intermittent welds on both sides of a T-joint will result in

controlling distortion over the entire joint

pulling too little heat in the joint for a successful weld

putting too much heat in the joint for a successful weld

controlling the atmosphere around the metal on both sides of the joint

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The ability of a metal to withstand shock loading is known as its

toughness

hardness

ductility

malleability

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Ductility is a term used to describe what mechanical property in metals?

ability to resist penetration

ability to withstand impact

ability to be stretched and formed

ability to withstand corrosion

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