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Mr. Navarro's Chapter 7 Exam

Authored by Daniel Navarro

Life Skills

11th - 12th Grade

Mr. Navarro's Chapter 7 Exam
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10 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Why is the body on a manual plasma torch made from a special type of plastic?

resistant to high temperatures

resistant to ultraviolet light

impact resistant

all of the above statements are true

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

How are the torch heads of a plasma torch cooled?

using air

using water

both a and b

they do not have to be cooled

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

How have copper/tungsten tips helped the plasma torch?

improve the quality of the work

heat generated at the tip to be conducted away faster

lengthens the life of the tip

all of the above statements are true

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What provides the gap between the electrode tip and the nozzle tip?

nozzle tip

nozzle insulator

electrode setback

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What factors must be considered when selecting a material for plasma arc gas hoses?

special heat-resistant, ultraviolet-light-resistant plastic

color matched to the cutter

old and greasy hoses are ok

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What type of voltage is required for a plasma cutting torch?

any current is acceptable

18-45 volts are required

50-400 volts are required

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Why do plasma cuts have little or no distortion?

the heat-affected zone does not expand as much

cuts will be distorted either way

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