Cutting Chapter 1

Question 1

Accidents are often caused by…

Answer 1

conditions at the job site

Question 2

As quitting time approaches, people are more likely to….

Answer 2

hurry, possibly taking risks they might not other wise take.

Question 3

When do workers often slow down?

Answer 3

Right after a meal such as lunch.

Question 4

What must you never wear during welding?

Answer 4

Polyester and other synthetic materials, sparks will melt these materials on your skin.

Question 5

What offers the most protection?

Answer 5

Full jackets

Question 6

A cape is cooler but what protection does it only offer?

Answer 6

Shoulder, chest and arm protection

Question 7

The most common form of hearing protection used in the industry is?

Answer 7

Disposable earplugs

Question 8

What can cause eye fatigue and mild burns to the skin?

Answer 8

Oxyfuel cutting and welding

Question 9

Why does Oxyfuel cutting and welding cause such conditions?

Answer 9

Infrared heat radiated by the process and any kind of welding produce UV radiation.

Question 10

What is something bad UV radiation can cause?

Answer 10

Severe burns to the eyes, including permanent retina damage and severe skin burns.

Question 11

The exhaust hood should be kept how many inches from the source of the fumes.

Answer 11

4-6

Question 12

When can the cartridge no longer remove the contaminent?

Answer 12

When the wearer detects any taste or smell, that means the cartridge had reached the capacity.

Question 13

What procedures must be followed when selecting the proper type of respirator for a particular job?

Answer 13

Local and OSHA procedures

Question 14

How must a respirator be properly selected?

Answer 14

Based on the containment present and its concentration level.

Properly fitted

Used in accordance with the manufacturer’s instructions.

Question 15

For safe working conditions, the oxygen levels in a confined space atmosphere must range between what?

Answer 15

19.5-23.5 percent by volume

Question 16

What is the percentage of oxygen considered normal?

Answer 16

21 percent

Question 17

When are oxygen concentrations considered deficient?

Answer 17

below 19.5

Question 18

What is the most common welding accident?

Answer 18

burned hands and arms

Question 19

What must you use whenever welding is done outside to protect other people from the arc or reflected glare?

Answer 19

Portable screens

Question 20

An official authorization from the site manager to perform work that may pose a fire hazard.

Answer 20

Hot Work Permit

Question 21

When do most welding enviroment fires occur?

Answer 21

During oxygen fuel gas welding or cutting.

Question 22

Oxygen and fuel gas cylinders or other flammable materials must be stored how?

Answer 22

Seperately.
or By 20 ft apart
or by a wall 5 ft high with at least 30 minutes burn rating.

Question 23

In its gaseous form, acetylene is extremely what

Answer 23

Unstable and explodes easily

Question 24

acetylene must remain at presures

Answer 24

below 15 pounds per square inch.

Question 25

What must you do if an acetylene cylinder is tipped over?

Answer 25

Stand it upright and wait at least an hour before using it.

Question 26

What determines the outcome of an electric shock?

Answer 26

The amount of current that passes through the human body.

Question 27

When lifting a heavy object what must you do with both your hands?

Answer 27

Distribute the weight of the objects evenly between both hands

Question 28

When do you need help lifting something large or bulky?

Answer 28

If the object is heavier than you can lift with one hand.

Question 29

Before work begins, the site should what?

Answer 29

Be surveyed for hazardous materials and unsafe conditions.

Question 30

What size does the job have to be in order to be evaluated?

Answer 30

Doesn’t matter what size

Question 31

What hazards should you look at?

Answer 31

Confined Spaces
Unguarded Openings
Possible Electrical Hazards
Enviromental Hazards

Question 32

Easy ignition of flammable material such as clothes.

Answer 32

> 23.5 percent

Question 33

Normal

Answer 33

19.5-23.5

Question 34

Deterioration of night vision, increased breathing volume, accelerated heart beat.

Answer 34

17

Question 35

Very poor muscular coordination, rapid fatigue, intermittent respiration.

Answer 35

14-16

Question 36

Nausea, vomiting, inability to perform, unconciousness

Answer 36

6-10

Question 37

Spasmodic breathing, convulsive movements, and death in minutes.

Answer 37

less than 6