sample questions for welding level "c"

8/10/2019 Sample Questions for Welding Level "C"

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Questions

for Weldinq

Level

"C"

-

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1.

Which

of

the

foilowing must

be considered

if

the welding location is

a

-

considerable distance

from

the welding machineJ

*

l\

f

O

I

n. reduce machine capacity

X

f{

a.

select

a smaller electrode

ed

@

C.

check cable wire

gauge

size

X

Q

o.

use a

larger

grounding

clamP

Which

of

the

following has

been known to cause

retinal

burnirrg

to workers

as

a

result

of exposure to the

"welding

arc"?

A.

gamrna

rays

B.

infra red radiat,cn

C.

using

an

"H'

filter

D.

high temperattire

exposure

Which eye

protectiorr

sl':r:ld

be worn

to

prevent

arc

flashes when

walkin

arolrni}

a welding shop?

A.

a

faee shield

B. burping

goggles

C.

a

yvelding

helmet

D.

flssh

goggles

or

safety

glasses

Which

type of shear

wiil

perlorm punching,

cropping

and

ri.ltching?

A.

bench

B.

sheet

nretr,J

C.

rotary

throaLless

D.

universai or ironworker

2.

r

@

r

r

3.

Lq

rl

tq

@

4"

IE

trl

Lo-l

@

W

^

l(

x

X

x

sd

)".

r"

,4,

-

t

/

ti

-,..

1li


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Sample

Questions

for Weldinq

Level

"G"

-

ITA

Web-Site

5.

r

r

E

r

7.

r

E

r

r

8.

E

r

r

E

o

r

E

r

r

x

I

X

*

X

X

x

X

x

d

X

I

X

X

H

X

d

X

Who would

develop a Welding

Quality

Control

Manual?

A.

worksite welder

B.

shop supervisor

C.

company owner

D.

production

supervisor

f_

Why

should excess flux

be removed when a

brazedjoint

is completed?

A

can

lead

to

corrosion

B

will

reduce strength

of

joint

C.

could start

a

fire

or explosion

D.

to

avoid

discoiouration

of base

metal

What

is

the usual

procedure

when striking an

arc

and the electrode sticks

to tPl

base metal?

A.

change

polarity

B.

tap

the

electrode hard

C.

release electrode

from

holder

D.

use

chipping

hammer

to

release

What

does

"EN"

indicate in

reference

to

welding

current?

A.

straight

polarity

B.

reverse

polarity

C.

engage negative

D

external negative

When

using

a

weave

pattern

to

cover

a wide

area in one

pass

(using

SMAW),

what

is

the maximum recommended

width for the weave?

A.

4.5

mm

B.

1.5

times the diameter

of

the electrode

C.

2.5 times the diameter

of

the electrode

D. 4.5 times

the diameter

of the electrode

*

o

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o


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Sample

Questions

for Weldinq

Level

"C"

-

ITA

Web-Site

10.

Which

of

the

following will increase

the

potential

and

severity

of electric

shock

to

E

r

r

r

12.

E

E

r

E

13.

r

E

r

r

14.

lrj

r

E

r

ed

A

ed

.}t

ry

\1

M

X

x

'\u/

e;s

w

x

workers

when

using SMAW?

A.

moisture

B.

temperature

C.

reverse

polarity

D. wrong

electrode

U.._

Which

tool(s)

should be used

to

remove slag?

A.

smallclaw

hammer

B.

flat

tip screw

drive:'

C.

wire

brush and bastard file

D.

chipping hammer

and

wire

brush

Which

is

the major

advantage

of

plasma

cutting

as compared to oxy-fuel

cutting?

A.

the

cost

of

the fuel

B.

cuts

thicker

material

C.

less

noise for workers

D.

minimizes

the distortion

What will

be affected by increasing

the carbon content in steel?

A.

ductility

B.

hardness

C.

weldability

D.

malleability

What is

a

1020

steel

in

the

SAE and

AlSl

classifications?

A.

nickel

steel

B.

chromium

steel

C.

low

carbon steel

D.

nickelchromium-molybdenum

steel

o

o

o

*


4/18

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X

X

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X

X

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X

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Sample

Questions

for Weldino

Level

"C"

-

ITA

Web-Site

10.

Which

of

the

following

will increase the

potential

and severity

of

electric shock

to

workers when using

SMAW?

@

n. moisture

p

e. temperature

p

C

reverse

polarity

E

D.

wrong

electrode

11.

Which

tool(s) should

be used

to

remove slag?

I

O

I

n. smallclaw

hammer

p a.

flat

tip screw drive:'

p

C.

wire

brush and

bastard file

[F|

D.

chipping hammer

and wire

brush

12.

Which

is

the major

advantage

of

plasma

cutting as

compared

to

oxy-fuel

cuttino?

f

n.

the cost

of

the fuel

f B.

cuts

thicker

material

p C.

less noise for workers

[*"1

O.

minimizes

the

distortion

lel

13.

What

will be affected

by

increasing

the carbon content in

steel?

p

n.

ductility

@

a.

hardness

p

C.

weldability

E

D.

malleability

14.

What

is

a

1020

steel

in

the

SAE

and

AlSl

classifications?

p

n. nicketsteet

p

a.

chromium steel

@

C.

low carbon steel

pO.

nickelchromium-molybdenumsteel


5/18

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Sample

Questions

for Weldinq

Level

"G"

-

ITA

Web-Site

15.

Which

of

the

following

properties

refers

to the

ability of

a

metal

to

bend

or

twist

d

X

X

X

d

without

breaking or cracking?

A.

ductility

B.

hardness

C.

toughness

D.

machinability

How

can cold-rolled steel be identified?

A.

the

presence

of rust

B.

the

presence

of mill scale

C.

smoothness and

round

edges

D.

snnoothness and square edges

What

is

the meaning of

the

welding

symbol shown

below?

/32

\

//

A.

3

mm throat, fillet,

other side

B.

3

mm leg length, fillet

weld,

other side

C.

3 mm

leg length,

fillet weld,

arrow

side

D.

3

mm

leg

length, single

bevel, arrow side

w

16.

r

r

r

E

17.

r

r

E

r

*

o

o

o


6/18

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Sample

Questions

for Weldinq

Level

"G"

-

ITA

Web-Site

18.

Which

type

of

drawing is shown

below?

Drill &,

reofr

A

13-1

/H.

t@+

_/

8.tr

i[

r

20.

r

f

.llo4s

1

U-]

r

L

Bushing de'i'l

N

oies:

,

L

Brockel

nolerio

-

6rm

M.s.

t

2. Bushing

noleriol

-

B.onze

-

1-u

.

u0

l. Breok Lt sno.p

eoges

40 a. _

t.

i i

.

tO

peq.o

F

+5:

+

85

]

DN

BY:

WALL

BRACKET

ASS'Y

CF]

BY:

DATE:

DWG NO:

@

rr

r

W

X

V

A.

detailassembly

B.

orthographic

plan

C.

oblique assembly

D.

exploded isometric

assembly


7/18

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Sample

Questions

for Welding

Level

"C"

-

ITA

Web-Site

19.

Which

of

the following

diagrams shows

the correct

joint

design for the welding

symbolshown below?

r

N

r

r

Y

w

X

A.

B.

C.

D,

v

;\

.i."

^r)

+/

el

X

;

diagram A

diagram

B

diagram

C

diagram D


8/18

20.

r

r

E

r

r

M

r

x

X

f

X

X

d

X

XT

ffiit#*.*a.nhu*ry

?f{E

m*l*f

$xrLt$

}

A

FHs$EH AS1'f,fiTASt

Sample Questions

for Weldinq

Level

"C"

-

ITA

Web-Site

lf

two angles

in

a

given

triangle are both

60

degrees, what

is

the

third

angle?

A. 10

degrees

B. 30

degrees

C.

60 degrees

D,

90 degrees

21.

When fabricating

a

rectangular

support

frame for

a

tank

and one side

is

6

m

and

the other side

is

I

m,

what would the diagonal measurement be in order to check

for

square

accuracy?

A.

8m

B.

9m

C.

10m

D.

11m


9/18

Exam

Sample

Questions

-

The

following

questions

are

typical of

the types

of

items that

are on

the

examination.

2.

Approximately how

much

heat

is

released

at the electrode

for

DCSP

welding?

a.314

b.213

c.

1/3

d.114

1.

If

a

welder

is

welding at

300 amps and the

combined

length

of

the electrode and

work

leads

is

150 feet,

what

is

the

recommended

size

of

the lead or cable?

a.1,

b.

1/0

c.2

d.zla

3.

Alternating

current

would

most

likely

be used

in

GTAW

to

weld

which

of

the

following

metals?

a.

[-ow

carbon

steel

b.

Deoxidized

copper

c.

Stainless

steel

d.

Aluminum


10/18

o

What

is the

colour

code

of

the

EWTh-2 GTAW

electrode?

A)

Orange

B) Yellow

C)

Red

DlBtaL"k

tr

{

q


11/18

o

Cracking

of a weld

can be

divided

into two

classes

known as:

r*

A)

cold

and

hot

cracking.

i:

B) solidification

and crater.

':*

C)

physical

and mechanical.

r

D)

mechanical

and metallurgical.

o

When

connecting

a

GMAW

system

it

is

critical

to ensure that the

match the electrode

wire

size

and type.

r

A)

flow

meters

)

drive

rolls

r

C)

regulators

r

B

r

D)

power

supplies

o

A

welding

machine

with

a

6O% duty cycle can operate

at

rated

amperage for

_

minutes

out

of

every

10 minutes

without

over

heating.

{*

A)6

r

B)t-

r

q3

r

D)5

o

What

are

the characteristics

of

red oak?

r

A) Hard,

very

strong, difficult

to

work

r

B)

Bends easily,

durable,

hard, many small rays

r*

C) Open

grain,

porous,

strong and durable

r

D)

Tough, strong, subdued

grain

pattern

r

E)

Straight

grain,

course

texture, oily

and

gritty


12/18

If

the

nozzle

and contact

tube

with

GMAW

gets

obstructed it

will cause:

fl

A)

the current to vary.

r

B)

splatter

to diminish.

r

C)

porosity

and

poor

quality

welds.

D)

too

great

of

a

gas

flow.


13/18

9.

A

groove

weld

is

commonly

used on

a

joint.

{*

A)

lap

{*

B) butt

r

q-firlet

{*

D)

surface

10.

The following

grooved

pipe

symbol

represents

a/an:

A)

90

degree

elbow

B)

True

wye

C)

Cap

DfRmfucing

Tee

i

4

d

{


14/18

A

groove

weld

is

commonly

used on

a

-joint.

{*

A) lap

r"

B) butt

fl

ryiu.t

{*

D)

surface


15/18

A.

Close

the

acetylene

cylinder

valve.

B.

Close

the oxygen

torch valve.

C.

Close

the acetylene

torch valve.

D.

Release

the oxygen regulator adjustment

and close the torch

valve.

5. When using

the

air

carbon arc

cutting

(AAC)

process, what must

be

done

to eliminate

the

excessive slag

adhering

to

the

edges of

the cut?

A.

Change

polarity.

B.

Change

electrode angle.

C. Decrease

travel speed.

D.

Decrease electrode diameter.

6.

What

is the

angle

of

cut

required

to

make

a template

for

a three-piece

90"

elbow?

A.

17.25"

B.

L5'

c.

22.5"

D.

30'

7.

What

is

the

purpose

of

a

groove

angle

when

welding

thick

plate?

A.

To

increase

weld

reinforcement.

B. To

allow

access to

the

root of

the

weld.

C.

To

prevent

burn-through at

the

root.

D.

To

reduce

welding

time.

8.

What

is

the

common practice to

provide

for

a

proper

weld

deposit

in

the

build-up of

threaded

areas?

A.

Build-up

over

thread

having

a

depth

of

1/8

in. only.

B. Remove the

worn

threads

by

gouging.

C.

Build-up

using

gas

tungsten arc

welding

(GTAW).

D.

Remove the

worn

threads by

machining

or

grinding.

9.

Which

measure

does

the

flowmeter

use

to

determine

the

flow

of

gas?


16/18

A.

Volume

of

gas.

B.

Pressure

of

gas.

C.

Weight

of

gas.

D. Cylinder

pressure.

10. When

is

gas

tungsten

arc welding

(GTAW)

most

commonly

used?

A.

When

high

deposition

rates

are

required.

B.

When

high

heat

input

is desirable.

C. When

welding

on

thick

materials.

D.

When

welding

on

thin or alloy

material.

11.

How

is

the bead

decreased

using the

gas

tungsten

arc

welding

(GTAW)

process?

A.

By

increasing the

amperage.

B. By

increasing the voltage.

C.

By

decreasing the amperage.

D.

By

decreasing the voltage.

12.

When

is

DCEN

used

with

submerged arc

welding

(SAWX

A.

When

deeper

penetration is required.

B.

When

welding

on non-ferrous materials.

C. When

shallower

penetration is required.

D.

For applications requiring

more

that

1500

amperes.

13.

What

is

a

benefit of

using the back-step

method when

welding a tee

joint?

A. Fine grained welds

are

produced.

B. Distortion

is reduced.

C.

Adequate penetration is

assured.

D.

Welding

time

is

reduced.

14.

How

is

the size

of

the

spot

determined when using the

resistance spot

welding

(RSW)

process?


17/18

A.

Pressure applied

to

the electrode.

B.

Current

value used.

C.

Shielding

gas

used.

D.

Size of

the electrode

tip.

15.

Which

step is

performed

first

when shutting

down

oxy-fuel cutting

equipment?

A.

Open

the torch

valves.

B.

Release the

pressure

regulator adjusting

screws.

C. Turn off

the

cylinder

valves.

D. Purge the

hoses.

16.

How

must

the

electrode

and

ground be

configured

when setting up

air

carbon

arc

cutting

(AAC)

equipment for

gouging?

A.

Connect

the

ground

to

positive

and the

electrode

to negative.

B.

Connect

the

ground

to positive and the electrode to

positive.

C. Connect the

electrode

to

positive

and

the

ground

to negative.

D.

Connect

the

electrode to negative

and the

ground

to

negative.

17.

When using

a

welding

machine

and a

6.4

mm

(1.14

in.)

carbon arc electrode,

what

amperage

should

be used

when cutting?

A.

90

to

150 amps.

B.

l-50 to 200 amps.

C.

200 to 400 amps.

D.

400

to

600 amps.

18.

Why

are

alloying

elements such

as

nickel and manganese added

tobraze welding

rods?

A.

To oxidize

the

molten metal.

B.

To

remove

impurities

from

the

weld.

C.

To

permit

a

lower

brazingtemperature.

D.

To

increase the tensile strength

of

the filler metal.

19.

What

is

the advantage

of a

two-stage

regulator?


18/18

A. It

can be used

for

cutting as well as welding.

B.

It

has

a second

stage

to reduce tank

pressure

to

working

pressure.

C.

It

has

the

first

stage

preset

at

one-half the tank

pressure.

D. It

maintains

a

more

constant

pressure.

20.

What

determines the

time

required

to

perform

stud welds?

A.

Size

of

the t'errule.

B.

Voltage of

the

machine.

C.

trngth

of

the stud.

D.

Diameter

of

the stud.

t.c

2.C

3.A

4.C

5.B

6.C

7.B

8.D

9,A

10.

D

Lt.

c

12.

C

13.

B

1.4.D

15.

C

t6.

c

L7.

C

18.

D

19.

D

20.D

sample questions for welding level "c"

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