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welding

Total questions: 28

Worksheet time: 9mins

Name
Class
Date
1.
What type of welding requires the use of an electrode in the form of wire spools?
a)
Stick
b)
MIG
c)
TIG
d)
OxyAcetylene
2.
What type of welding can cut through metal with the help of oxygen?
a)
MIG
b)
TIG
c)
OxyAcetylene
d)
Stick
3.
What type of welding does not require electrical power?
a)
MIG
b)
OxyAcetylene
c)
TIG
d)
Stick
4.
What type of welding requires goggles of shade 5 as a minimum?
a)
TIG
b)
Stick
c)
MIG
d)
OxyAcetylene
5.
What type of welding allows you to braze weld?
a)
Stick
b)
MIG
c)
OxyAcetylene
d)
None of these
6.
Which welding process below can perform fusion without an electrode or filler metal?
a)
Stick
b)
OxyAcetylene
c)
MIG
d)
None of the above
7.
For proper eye protection when arc welding the minimum shade number of the filter lens should be
a)
4
b)
6
c)
10
d)
12
8.
When arc welding do not use cables that are
a)
welded
b)
soldered
c)
cracked, cut, frayed
d)
spliced
9.
When welding the operator should never lay or stand
a)
on concrete floors
b)
on damp ground
c)
on metal
d)
on wood structures
10.
Saturation of clothing by moisture or perspiration increases the risk of
a)
weld burns
b)
electrical shock
c)
welder fatigue
d)
getting a flash
11.
Hot metal should be handled with
a)
gloves
b)
aprons
c)
tongs or pliers
d)
rag
12.
If a fellow student’s clothes catches on fire, the first thing one should do is
a)
throw water on them
b)
use a fire extinguisher
c)
wrap the person with a fire blanket
d)
call the school nurse
13.

What are the 4 components of oxyacytelene welding

a)

oxygen

b)

acetylene

c)

torch

d)

filler rod

e)

nitrogen

14.

____________ is mixed with acetylene to make it hotter when burned

a)

pure oxygen

b)

pure hydrogen

c)

pure nitrogen

d)

pure carbon

15.

Pure nitrogen is mixed with acetylene to make it hotter when burned.

a)

TRUE

b)

FALSE

16.

The acetylene and pure oxygen occurs are mixed in the _____________ to melt the filler rod.

a)

torch

b)

cylinder

c)

cabinet

d)

cover

17.

The welded joint is stronger than bolted joint.

a)

TRUE

b)

FALSE

18.

Oxtacetylene welding can be used without electricity

a)

TRUE

b)

FALSE

19.

Oxyacetylene is commonly used in non-industrial setting.

a)

TRUE

b)

FALSE

20.
Welding cables should be protected from
a)

sparks and flames

b)
lying on the ground
c)
sharp metal objects
d)

all of these

21.
When finished welding, gas should be
a)
shut down completely
b)

shut down completely and drained

c)

left on

d)

left for the next student

22.
When cleanup is called, students need to
a)
Stop and return everything to their homes, and clean up the shop
b)

nothing

c)
leave everything
d)

goof around

23.
What happens if the shop is not cleaned up?
a)
nothing
b)
it is considered unsafe until things are cleaned up
24.
Students should always wear
a)
safety glasses, cover, pants, and shaded glasses in shop
b)
shorts
c)
sandals
d)
none of the above
25.
What should always be done at the end of class?
a)
wrap all cords and grounds over the machine or in the proper area.  Also drain and shut off gas.
b)

leave machine on and unattended

c)
nothing
d)

just start cleaning up

26.

7x7

a)

49

b)

45

c)

35

d)

36

27.

21x2

a)

12

b)

32

c)

42

d)

52

28.

45x3

a)

125

b)

135

c)

142

d)

145

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