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Ag Mech. II Obj. 4.03

Authored by Jessica Sellers

Education

9th - 12th Grade

Used 8+ times

Ag Mech. II Obj. 4.03
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21 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If a welder is using an oxyacetylene torch and must start a cut in the center of a thick piece of metal, that person should:

drill a 1/4-inch hole in the metal beforehand.

cut a bevel in the base metal to help penetration.

hold the blowpipe on the metal for better penetration.

hold the blowpipe 1 inch above the metal to avoid slag.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

While one is cutting, the proper distance from the metal to hold the inner core of a cutting torch is:

1/8"

1/2"

5/8"

3/4"

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

To avoid injury from hot molten metal produced when cutting with the oxyacetylene torch, Melinda should:

spread wet paper towels on the floor prior to cutting.

point the torch away from the metal being cut.

use a metal container to catch the metal.

stand with her feet shoulder-width apart.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When one welds with an oxyacetylene unit, high-carbon steel should be preheated until it is:

blue.

blue-gray

red

white

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

José uses extra care when using an oxyacetylene torch to cut metal that is lying on a concrete floor, because:

chemicals may be released from concrete.

concrete causes the torch to burn cooler.

concrete may be damaged by the heat.

the risk of a fire hazard is increased.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Jamal uses flux on metal before he solders it to:

aid in the flow of heat.

cool the metal uniformly.

heat the metal uniformly.

remove oxides, sulfides, and nitrates.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When adjusting the pressure in acetylene lines, avoid exceeding the maximum amount of:

1 pound per square inch.

2 pounds per square inch.

10 pounds per square inch.

15 pounds per square inch.

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