2020-2021

Question 1

Eyes are delicate and can be easily burned by welding flash. Flash consists of what tires of light rays?

Answer 1

Ultraviolet and infrared

Question 2

Welding shield (also called welding helmets) provide eye and face protection. The welder looks through a window that contains a glass filter plate. The recommended shade of the filter plate for smaw is ___.

Answer 2

10 or 11

Question 3

What type of electricity flows in more than one direction?

Answer 3

Alternating current

Question 4

The voltage and current required to run a smaw machine can be supplied by _____.

Answer 4

Power lines or engine-driven alternators or generators

Question 5

The device in a smaw power source that changes AC to DC is known as a(n)______.

Answer 5

Rectifier

Question 6

What type of power source yields a small welding current change when there is a large arc voltage change?

Answer 6

Constant current power source

Question 7

The percentage of a ten minute period that a power source operates at is rated output current setting is the machines ______

Answer 7

Duty cycle

Question 8

The majority of smaw welding is done using direct current electrode positive(dcep). This is also known as

Answer 8

Reverse polarity

Question 9

The electrode holder and cable are often referred to as the ______

Answer 9

Stinger

Question 10

A DC power source that is turned off and on at very high speeds is known as an inverter that is using ____technology

Answer 10

Chopper

Question 11

Which of the following is NOT a variable that will affect travel speed?

Answer 11

Temperature of the weld

Question 12

When determining electrode amperages, be sure to consider_____.

Answer 12

Position of the weld

Question 13

The two basic techniques to start an arc are_____.

Answer 13

Scratch and strike

Question 14

Most of the smaw weld applications encountered will ______beads when welding a single pass weld or on the first pass of a multiple pass weld.

Answer 14

Stringer

Question 15

For centuries, the only method used for metllurgically joining metals was ____welding

Answer 15

Forge

Question 16

An innovation in 1932 placed a heavy layer of ____on the seam ahead of the carbon electrode.

Answer 16

Flux

Question 17

Smaw is a process for joining metals that used a _____.

Answer 17

Flux covered electrode

Question 18

A joint made by overlapping one piece of material over another is a____joint.

Answer 18

Lap

Question 19

The place at which the face of the weld and the base metal surfaces meet is called the ____.

Answer 19

Toe.

Question 20

Lap joints may be used to splice _____.

Answer 20

Quickly with minimum joint preparation

Question 21

A limitation of T-joint is ______.

Answer 21

Stress concentration at the joint root increased the risk of fatigue cracking

Question 22

What does a welding symbol include to show the location of a weld

Answer 22

Arrow

Question 23

The back and backing weld symbols are ____.

Answer 23

Identical

Question 24

Always wear ___.

Answer 24

Eye protection

Question 25

If it is necessary to couple lengths of cable together, make sure joints are ____.

Answer 25

Insulated

Question 26

Do not hold the welding or cutting to too close to your work; this will cause a(n)____.

Answer 26

Flashback

Question 27

Never leave your torch ____and go away from it

Answer 27

Burning

Question 28

Do not store cylinders in a room where the temperature is more than _____degrees Fahrenheit

Answer 28

80

Question 29

On which of the following metals should you always use air exhaust at the weld?

Answer 29

Chromium

Question 30

What should you do with an electrode holder when it is not in use?

Answer 30

Hang it in a welding machine

Question 31

Never use a torch as a______

Answer 31

Hammer, crowbar, or wedge

Question 32

Which of the following tools removes slag and residue after welding?

Answer 32

Chipping hammer

Question 33

Which of the following tools is used for cutting keyways in metal?

Answer 33

Cape chisel

Question 34

Which of the following tools is used for cutting v-grooves and cleaning out inside corners?

Answer 34

Diamond point chisel

Question 35

Tip drills are used ____.

Answer 35

To clean openings in tips

Question 36

Angle and straight grinders are used to _______.

Answer 36

Clean joints before and after a welding process

Question 37

A jitterbug ______.

Answer 37

Removed slag from welds

Question 38

What is shown through the use of multiple reference lines.

Answer 38

Sequence of the entire weld operation