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Safety 2

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 

The gas metal arc welding process ___.
a.
uses oxygen as a shielding gas
b.
deposits weld metal at a slower rate than shielded metal arc welding
c.
uses a continuous wire electrode
d.
all of the above
 

 2. 

A hot-work permit is required whenever ___.
a.
hot welding gases and fumes could displace life-supporting oxygen
b.
open flames, heat, or sparks may cause a fire or explosion
c.
arc welding operations are performed indoors
d.
welding or cutting in a confined space where elevated temperatures pose a threat of heat exhaustion
 

 3. 

___ is not a basic rule that contributes to the safe handling of oxyacetylene equipment.
a.
Opening cylinder valves slowly
b.
Protecting the equipment from rust with a coating of oil
c.
Keeping heat, flame, and sparks away from combustibles
d.
Preventing oxygen and acetylene leaks
 

 4. 

A course in ___ is helpful to a person considering a career as a welder.
a.
mathematics
b.
metals
c.
blueprint reading
d.
all of the above
 

 5. 

Nearly two-thirds of all welders work in the ___ industries.
a.
transportation and automotive
b.
equipment and metal products
c.
machining and fabrication
d.
all of the above
 

 6. 

___ may be replaced by MAPP or natural gas in some welding applications.
a.
Acetylene
b.
Oxyacetylene
c.
Resistance
d.
all of the above
 

 7. 

The ___ welding process is known for its mobility and flexibility.
a.
resistance
b.
gas metal arc
c.
shielded metal arc
d.
none of the above
 

 8. 

The ___ welding process is used primarily for high-production welding.
a.
gas tungsten arc
b.
gas metal arc
c.
oxyacetylene
d.
shielded metal arc
 

 9. 

To ensure a safe work site when welding, ___.
a.
always practice good safety habits
b.
report all injuries
c.
never attempt to operate any equipment without proper instruction
d.
all of the above
 

 10. 

When selecting a welding process for a particular job, ___.
a.
determine the costs involved
b.
identify the types of metals to be joined
c.
determine the nature of the products to be fabricated
d.
all of the above
 

 11. 

A skilled welder ___.
a.
must be able to recognize weld defects
b.
reads prints and interprets weld symbols
c.
has knowledge of the properties of metals
d.
all of the above
 

 12. 

Stainless steels require special attention to ventilation because they produce ___ fumes when welded.
a.
zinc
b.
manganese
c.
hexavalent chromium
d.
beryllium
 

 13. 

The ___ welding process was used before the gas tungsten arc welding process was developed.
a.
shielded metal
b.
oxyacetylene
c.
acetylene
d.
none of the above
 

 14. 

A Class ___ fire is caused by most combustible materials such as wood, paper, rubber, plastic, and cloth.
a.
K
b.
A
c.
B
d.
C
 

 15. 

The ___ arc welding process deposits molten metal as the electrode is consumed into the weld joint.
a.
flux-cored
b.
gas tungsten
c.
oxyfuel
d.
shielded metal
 

 16. 

Accidents occur because of ___.
a.
lack of information
b.
indifference to regulations
c.
carelessness
d.
all of the above
 

 17. 

When using oxygen and acetylene cylinders, open the valves ___.
a.
quickly
b.
slowly
c.
with a pair of pliers
d.
none of the above
 

 18. 

For the safe operation of welding equipment, ___.
a.
shut OFF the power when welding is completed
b.
turn power OFF before changing polarity
c.
be sure the welding machine is equipped with a conveniently located power disconnect switch
d.
all of the above
 

 19. 

A respirator is used when welding metals that give off ___ fumes.
a.
toxic
b.
oxygen
c.
electrode
d.
acetylene
 

 20. 

Proper protective clothing is required when welding or cutting to prevent ___ from contacting the welder.
a.
sparks that may cause serious burns
b.
metal particles that are extremely dangerous to the eyes
c.
hot metal that may cause burns
d.
all of the above
 

True/False
Indicate whether the statement is true or false.
 

 21. 

An accident should always be reported and documented, regardless of how minor it may be.
 

 22. 

Welding is an efficient and flexible means of fabrication used in industry today.
 

 23. 

Welding requires good eyesight and eye-hand coordination.
 

 24. 

When welding is completed, the welding machine should be turned OFF.
 

 25. 

A malfunction in welding equipment should be repaired by the welder as quickly as possible.
 

 26. 

Welding as an occupation does not require specific training.
 

 27. 

Attempting to operate a piece of equipment without instruction may not only damage the equipment, it could result in serious injury.
 

 28. 

Welding is a more expensive process compared to other methods of joining materials.
 

 29. 

Every year, thousands of welders are injured due to carelessness, lack of knowledge, or indifference to safety regulations.
 

 30. 

Gas tungsten arc welding was developed to weld magnesium and aluminum on World War II fighter planes.
 

 31. 

Some welding processes do not require a well-ventilated area.
 

 32. 

All safety practices should be followed when arc welding.
 

 33. 

A fire extinguisher should be accessible in locations where welding is done.
 

 34. 

Some welding applications require a welder to be certified.
 

 35. 

Oxyfuel welding processes use heat from the combustion of a mixture of oxygen and a fuel gas for welding.
 

 36. 

Welding can be used to repair farm, mining, and construction equipment.
 

 37. 

Any focus away from the job may result in an accident, causing injury to the welder and/or damage to property and equipment.
 

 38. 

The powdered core of a flux-cored electrode contains elements that break down in the heat of the arc to form shielding gas.
 

 39. 

The gas metal arc welding process does not require a shielding gas.
 

 40. 

Operating welding cables above their rated capacity results in faster welding speeds.
 



 
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