welding course - americangunsmith test and answer sheet.pdfwelding course test ©2014 american...

This test covers all the material in the Welding Course. All of the information needed to answer the questions on this test is contained in the course’s videos. The answers to specific questions may NOT be stated word for word by the instructor in the videos. For example, Bob says that one end of a pin is black, the other is silver and either end can go in first. It goes into the slide from top to bottom. The test asks you “Which end you would start in from the top on a blued slide?” The possible answers are:

A The black end B The silver end C Neither one; you would order a new pin D All of the above E None of the above

Bob didn’t specifically speak the answer to this question, but logic dictates that you would start the silver end in from the top so that the black end would be exposed on the top of the blued slide; so B would be the most correct answer. Choose the answer that you feel makes the most sense; we are NOT trying to trick you. If you have watched the videos a few times and still cannot find or work out the answer, email Jack Landis at [email protected] or call Tech Support at (800) 797-0867, X104 anytime between 8 a.m. and 5 p.m. PST Monday through Friday. We WANT you to understand the material, get used to the logical “Design, Function and Repair” thought process, and pass your test. If you don’t, WE’VE failed YOU. We’re here to help you, so please take advantage of all the options for assistance. Please print your answers on the Welding Course Test Answer Sheet. This is an “open DVD test” and requires a passing grade of 80% or higher. After you have carefully written down your answers, return only the Answer Sheet (not the test) to us by U.S. mail or fax. You must keep the test and a copy of your completed Answer Sheet for your records. We cannot be responsible for tests returned by the U.S. Postal Service. Within two weeks of our receiving your Answer Sheet, you will receive written notification of your test results. Upon passing, your “Welder” certificate will be mailed to you. If you do not pass, we will mail a copy of your submitted Answer Sheet with the missed questions marked, along with a blank Retest Answer Sheet. Your first re-test is free; additional tests will incur a $20 charge. If you want your test results INSTANTLY, call (800) 797-0867 to set up online testing. The questions on the online test are the same as this paper copy. You can use this paper copy of the test to prepare your answers, then go online to complete the test, which saves you time and money! You don’t have to fax or mail your completed Answer Sheet with online testing, and you get your results immediately. Good luck!

mailto:[email protected]

WELDING COURSE TEST

©2014 American Gunsmithing Institute

351 Second Street, Napa, CA 94559

Telephone: (800) 797-0867; Fax: (707) 253-7149 www.americangunsmithinginstitute.net

Print your name as you would like it to appear on your certificate ______________________________________ Your address ______________________________ City _____________________ State ______ ZIP ________

ANSWER SHEET Q1. ____

Q2. ____

Q3. ____

Q4. ____

Q5. ____

Q6. ____

Q7. ____

Q8. ____

Q9. ____

Q10. ____

Q11. ____

Q12. ____

Q13. ____

Q14. ____

Q15. ____

Q16. ____

Q17. ____

Q18. ____

Q19. ____

Q20. ____

Q21. ____

Q22. ____

Q23. ____

Q24. ____

Q25. ____

Q26. ____

Q27. ____

Q28. ____

Q29. ____

Q30. ____

Q31. ____

Q32. ____

Q33. ____

Q34. ____

Q35. ____

Q36. ____

Q37. ____

Q38. ____

Q39. ____

Q40. ____

Q41. ____

Q42. ____

Q43. ____

Q44. ____

Q45. ____

Q46. ____

Q47. ____

Q48. ____

Q49. ____

Q50. ____

Q51. ____

Q52. ____

Q53. ____

Q54. ____

Q55. ____

Q56. ____

Q57. ____

Q58. ____

Q59. ____

Q60. ____

Q61. ____

Q62. ____

Q63. ____

Q64. ____

Q65. ____

Q66. ____

Q67. ____

Q68. ____

Q69. ____

Q70. ____

Q71. ____

Q72. ____

Q73. ____

Q74. ____

Q75. ____

Q76. ____

Q77. ____

Q78. ____

Q79. ____

Q80. ____

Q81. ____

Q82. ____

Q83. ____

Q84. ____

Q85. ____

Q86. ____

Q87. ____

Q88. ____

Q89. ____

Q90. ____

Q91. ____

Q92. ____

Q93. ____

Q94. ____

Q95. ____

Q96. ____

Q97. ____

Q98. ____

Q99. ____

Q100. ____

NOTE: Student signature required. My signature below verifies that I have personally answered all questions.

_________________________________________________ Today’s date _________________

For Office Use Only Date received ________________ Date graded ________________ By ________________ Score ______________ Pass ____ Fail ____

(707) 253-2150

WELDING COURSE TEST


Safety

Q1. Be it in the shop or in the field, what is your first priority?

A Safety

B Safety

C Safety

D All of the above

Q2. Which of the following are the major hazards that welders are exposed to: electric shock, radiant

energy, fumes, burns and dust?

A Shock, fumes, burns and dust

B Shock, radiant energy, burns and fumes

C Shock, burns and fumes

D All of the above

Q3. When is it OK to dust off yourself with oxygen?

A Anytime

B Never

C To cool down when it gets too hot

D When the supervisor says it is OK

Q4. Fire extinguishers should be kept ________.

A locked away so they will not be stolen

B close to the work site

C immediately accessible

D on your truck

Q5. When storing oxygen/acetylene cylinders, ________.

A oxygen should be stored separately from fuel gases

B empty and full cylinders should be marked and stored separately

C cylinders should be chained when in use and when being stored

D all of the above

Q6. When opening a high pressure cylinder valve, you should ________.

A turn it all the way on

B turn it on part way

C crack the valve first and then open it all the way

D none of the above

Q7. When installing a full, high-pressure cylinder, you should ________.

A take off the cap and install

B set it in place, chain it down, then remove the cap

C lay the cylinder on its side and roll it to the cart or wall so it won’t fall over

WELDING COURSE TEST


Q8. The average pressure in a full oxygen cylinder is ________.

A 3,000 to 4,000 PSI @ 70 degrees F (20 degrees C)

B 2,200 to 2,400 PSI @ 70 degrees F (20 degrees C)

C 1,000 to 1,500 PSI @ 70 degrees F (20 degrees C)

D 2,600 to 2,800 PSI @ 70 degrees F (20 degrees C)

Q9. Because H.P. cylinders are heat treated, it's OK to strike an arc on the side to test your heat range.

Yes

No

Q10. If oxygen under pressure comes into contact with grease or oil, it will react violently and can

explode.

True

False

Gas Welding

Q11. When moving the oxy/acetylene rig in the back of your truck, it's ok to leave the regulators

mounted as long as they are secured in the upright position by chain or other method.

True

False

Q12. When shutting down the oxygen/acetylene rig, you should turn off the ________.

A acetylene first, oxygen second; leave the pressure adjusting screen as is

B oxygen first, acetylene second; leave the pressure adjusting screw as is

C acetylene first, oxygen second; loosen the pressure adjusting screw

D oxygen first, acetylene second; loosen the pressure adjusting screw

Q13. Acetylene cylinders are high-pressure, like oxygen cylinders.

True

False

Q14. Acetylene as a gas is very unstable.

True

False

Q15. Acetylene cylinders are packed with a porous material, and the pores are filled with ________.

A liquid nitrogen

B acetone

C paint thinner

D water

WELDING COURSE TEST


Q16. What function does the acetone perform?

A Stabilizes the acetylene

B Adds weight to the cylinder

C Doubles as paint thinner

D Adds extra energy

Q17. At what pressure will acetylene become unstable?

A 15 PSI

B 45 PSI

C 25 PSI

Q18. Acetylene has a peculiar odor; it smells like ________.

A a rose

B garlic

C roasted potatoes

D soap

Q19. If an acetylene cylinder is laid on its side, the acetone will leak out. Why is this dangerous?

A If the acetone leaks out, it will dissolve the rubber hose allowing acetylene to

leak into the atmosphere

B By leaking out, it could cause the acetylene to become unstable

C It will get into the regulator and harden causing the regulator to malfunction

D All of the above

Q20. If you are cutting or welding and you smell acetone, you should immediately shut the acetylene

off.

True

False

Q21. While the newer torches may have reverse-flow check-valves and/or spark arrestors built in, the

older torches probably will not have them. Is it a good idea to add them to your equipment?

Yes

No

Q22. The adjusting screws on regulators should be backed out before opening cylinders and when

shutting down.

True

False

Q23. When checking for leaks, you should ________.

A listen for leaks

B use the soap test

C use your nose

D all of the above

WELDING COURSE TEST


Q24. Before attaching the regulators, you should ________.

A crack the valve slightly and turn off

B stand to one side of outlet while cracking valve

C check threads to make sure they are OK

D all of the above

Q25. The "rule of thumb" pressure for manual oxygen/acetylene gas welding is ________.

A acetylene 5-6, oxygen 10-12

B acetylene 10-11, oxygen 15-18

C acetylene 15-16, oxygen 20-25

D acetylene 3-4, oxygen 10-12

Q26. The “rule of thumb” pressure for oxygen/acetylene cutting or burning is ________.

A acetylene 5-6, oxygen 20-22

B acetylene 10-12, oxygen 25-30

C acetylene 15-17, oxygen 30-35

D acetylene 5-6, oxygen 30-35

Q27. If popping or back-fire occurs, you can ________.

A turn off the acetylene and let oxygen on to cool

B turn off the acetylene, let oxygen on, and dip in water

C turn oxygen off (after a. and b. above) and relight

D all of the above

Q28. When you are finished using all oxygen acetylene equipment or leaving it unattended, it should be

turned off and drained with no pressure or gases left in the hoses.

True

False

Q29. After attaching the rig's, opening the cylinder-valve, and setting to the proper pressures, you

should ________.

A turn the acetylene knob on the torch slightly and use a striker to ignite the

acetylene. Adjust the flame to eliminate the black soot then add oxygen slowly

and adjust to a new flame

B slowly open the oxygen first, then add acetylene; this way there will not be any

soot

C turn the acetylene knob and the oxygen knob at the same time and set to an

oxidizing flame

Q30. Acetylene fittings are colored green.

True

False

WELDING COURSE TEST


Q31. Acetylene fittings are L.H. threads.

True

False

Q32. When burning or gas welding, you should use a face mask or goggles with a ________.

A #5 shade

B #10 shade

C #12 shade

D either a #5 or a #10 shade

Q33. What type of flame will be used in most gas welding?

A Carburizing

B Oxidizing

C Neutral

D A and B above

Q34. Which can cause the torch to pop or backfire?

A Touching the tip to the work

B Loose or dirty (contaminated tip)

C Improper fuel-gas pressure

D All of the above

Q35. What is the approximate temperature of the torch flame?

A 2,250 degrees F

B 5,800 degrees F

C 3,580 degrees F

D Electric-arc welding

Q36. Ultraviolet rays are ________.

A visible

B invisible

Q37. If the part to be welded has a coating of paint, plating, etc., you can ________.

A grind coatings off area to be welded

B take the torch and burn off what you can

C weld through the coating without removing it

D A or B above

Q38. Extreme caution should be used when welding in a confined space. You should ________.

A have people trained in confined space use stand by

B make sure to have plenty of ventilation, blowers, etc.

C check OSHA guidelines

D all of the above

WELDING COURSE TEST


Q39. Never weld or cut near combustible materials.

True

False

Q40. GMAW is the AWS designation for ________.

A good machines are wired

B gas-metal arc welding

C gas-metal acetylene welding

D gas-machine arc welding

Q41. Welding sparks can cause hidden fires.

True

False

Q42. Welding power sources come in ________.

A 110

B 220 single phase/3 phase

C 440 3 phase

D portable generator rigs

E all of the above

Q43. Which are correct names for types of welding machines?

1. Inverter

2. AC

3. Motor generators

4. CV

A 1. and 2. above

B 1., 3. and 4. above

C 1., 2., 3. and 4. above

D 2. and 4. above

Q44. In welding, there are how many types of joints?

A 8

B 9

C 5

D 4

WELDING COURSE TEST


Q45. Name this weld:

A Butt

B Tee

C Corner

D Lap

E Edge


A Butt

B Tee

C Corner

D Lap

E Edge


A Edge

B Corner

C Lap

D Tee

WELDING COURSE TEST



A Lap

B Corner

C Butt

D Edge

E Tee


A Butt

B Tee

C Lap

D Edge

Q50. The welding positions are ________.

A horizontal

B vertical up

C vertical down

D overhead

E flat

F all of the above

Q51. GTAW has also been known as ________.

A tungsten arc welding

B TIG

C heli-arc

D none of the above

Q52. TIG torches are both air and water cooled.

True

False

WELDING COURSE TEST


Q53. When you are welding aluminum with argon, set the polarity to ________.

A DC+

B DC-

C AC

D AC+

Q54. When welding carbon steel or stainless steel with argon, set the polarity to ________.

A DC+

B DC-

C AC

D AC-

Q55. Which two shielding gases are used in manual GTAW welding?

A Carbon dioxide and oxygen

B Argon and carbon dioxide

C Helium and argon

D Oxygen and argon

Q56. In GTAW welding, tungsten electrodes are considered ________.

A consumables

B non-consumables

C combustible

D disposable

Q57. Aluminum melts at slightly above ________.

A 1,200 degrees F

B 2,200 degrees F

C 200 degrees F

D none of the above

Q58. Aluminum oxide melts at above 3,000 degrees F.

True

False

Q59. Which of these gases are inert?

A CO2/argon

B Argon/helium

C Helium/C02

D All the above

Q60. When TIG welding aluminum, you should use ________.

A helium with AC-

B argon with Hi Freq AC

C argon with AC

D helium

WELDING COURSE TEST


Q61. When you are TIG welding stainless or carbon steel, you should use ________.

A argon with Hi Freq AC

B argon with AC

C argon with DC-

D argon with Hi Freq DC+

Q62. When TIG welding, you should feed the filler rod into the edge of the molten puddle by ________.

A keeping the end of the rod in the gas envelope

B keeping the end of the rod out of the gas envelope

C touching the rod to the tungsten

D touching the rod to the puddle

Q63. TIG filler rods have a flux coating.

True

False

Q64. GMAW has also been known as ________.

A TIG

B MIG

C Stick

D Fluxcore

Q65. When selecting MIG wire, you should consider the ________.

A type of material to be welded

B thickness of the material

C type of weld joint

D type of shielding gas to be used

E all of the above

Q66. A constant voltage machine is required for MIG.

True

False

Q67. In MIG operations, which it true?

A DC straight polarity is seldom used

B AC is never used

C DC reverse polarity is most used

D DC reverse polarity is seldom used

Q68. When restarting a weld, ________.

A make sure there is no porosity in the crater

B trim the end of the wire

C restart at the leading edge of the crater

D all of the above

WELDING COURSE TEST


Q69. Typical gas flow in a MIG machine is ________.

A 5 to 15 CFH

B 15 to 30 CFH

C 35 to 50 CFH

D 2 to 5 CFH

Q70. When adjusting the amperage and voltage, you should ________.

A do a test weld on your workpiece

B weld on a scrap piece

C preset the machine and start welding

D change the settings as you weld

Q71. Once you have set your heat range and gas flow and are ready to start the weld, you should

________.

A check for proper electrode extension

B aim the gun at the proper angle

C move in the direction of travel

D all of the above

Q72. FCAW uses a continuous electrode.

True

False

Q73. FCAW has the slowest deposition rate of any manual welding process.

True

False

Q74. FCAW stands for fluxcore arc welding.

True

False

Q75. When using stick welding (SMAW), it is important to remove all slag between passes.

True

False

Q76. Either direct current (DC) or alternating current (AC) can be used in stick welding.

True

False

Q77. When you are choosing a power supply, consider ________.

A the power available to operate the equipment

B the thickness of the material to be welded

C the size of the machine

D all of the above

WELDING COURSE TEST


Q78. There are two techniques of starting the arc, they are ________.

1. Drag

2. Scratch

3. Tap

4. Bump

A 1. and 2. above

B 1. and 3. above

C 2. and 3. above

D 1. and 4. above

Q79. When an electrode sticks to the work, you can ________.

A rock the stinger back and forth to free it

B un-clamp the electrode from the stinger

C turn off the machine

D all of the above

Q80. After the arc starts, it is important to hold a short arc about 1/2 the diameter of the electrode so

the arc stabilizes and the gas shield is formed, before you move the weld bead.

True

False

Q81. Electrodes (rods) cannot be damaged by moisture.

True

False

Q82. The first set of numbers on a rod (i.e., E60) tells you the ________.

A length of the electrode

B tensile strength

C thickness of the electrode

D size of the electrode

Q83. When choosing a rod, rule of thumb is to choose one that is thicker than the material you are

welding.

True

False

Q84. When using SMAW, which of the following is not a cause of undercutting?

A Welding with too large an electrode

B Improper manipulation of the weld

C Too slow a travel speed

D Too high a weld current

WELDING COURSE TEST


Q85. After opening a hermetically sealed container of lo-hydrogen electrodes, they should be stored in

________.

A a vented gas oven

B a vented electric oven

C in your kitchen oven

D all of the above

Q86. When using reverse polarity, ________.

A the workpiece is negative

B the workpiece is positive

C the electrode is negative

D none of the above

Q87. SMAW can be used in ________.

A the horizontal position

B the flat position only

C all positions

D vertical and horizontal positions only

Q88. Which of the following electrodes does not have lo-hydrogen coatings?

A 7016

B 7018

C 6011

D 6010

E A and B above

F C and D above

Q89. The most common cause of slag inclusions is ________.

A using the wrong size electrode

B welding over the slag of the previous weld

C stick welding over a GTAW bead

D all of the above

Q90. A butt joint in the 3G position puts the axis of the weld ________.

A flat

B horizontal

C vertical

D overhead

Q91. A tee joint with the axis of the weld in the horizontal position is in position ________.

A 1F

B 3G

C 4F

D 2F

WELDING COURSE TEST


Q92. This symbol signifies that the weld is to be made on the ________.

A other side

B either side

C arrow side

D none of the above

Q93. Information that appears to the left of the weld symbol refers to ________.

A processes to be used

B electrode size

C weld size

D weld length

Q94. The "other side" weld size is ________.

A 1/2"

B 1/4"

C 5/16"

D 3/16"

Q95. The pitch of this "arrow side" weld is ________.

A 3

B 2

C 6

D 4

WELDING COURSE TEST


Q96. The length of the weld on the arrow side is ________.

A 6"

B 2"

C 4"

D 1"

Q97. All welding symbols require which of the following basic elements?

A Ref. line, arrow and tail

B Ref. line, arrow and weld size

C Ref. line and arrow

D Ref. line only

Q98. In the following symbol, what does the circle represent?

A Weld around 3 sides

B See detail

C Spot weld symbol

D Weld all around

Q99. Flat, horizontal, vertical and overhead welding positions are called out by the letters "F" or "G."

What do these letters stand for?

A F = fill-in, G = grind

B F = fill-in, G = groove

C F = fill, G = grind

D F = fillet, G = groove

WELDING COURSE TEST


Q100. There are two welds shown below; choose the answer that correctly describes each weld.

A 1 is a fillet, 2 is a groove

B 2 is a fillet, 1 is a groove

C 1 and 2 are both groove welds

D 1 and 2 are both fillet welds

welding course - americangunsmith test and answer sheet.pdfwelding course test ©2014 american...

Documents