Welding and Stuff Part A 51-100

Question 1

Which metal properties are directly related:

A) Conductivity and strength

B) Strength and Ductility

C) Strength and Hardness

D) Ductility and Toughness

E) C and D

Answer 1

E) C and D

Question 2

Which of the following is not a method used to eliminate or reduce residual stress:

A) Vibratory stress relief

B) External restraint

C) Thermal stress relief

D) Peening

E) Annealing

Answer 2

B) External restraint

Question 3

*With respect to the rolling direction of steel plate manufacture, which statement is true:

A) The Strength is highest in the X direction

B) The Strength is highest in the Y direction

C) The Strength is lowest in the X direction

D) The Strength is lowest in the Y direction

E) The Strength is highest in the Z direction

Answer 3

A) The Strength is highest in the X direction

Question 4

50 lb can of welding electrodes weighs how many kg?

A) 227 kg

B) 25 kg

C) 22.7 kg

D) 23000 kg

E) None of the above

Answer 4

C) 22.7 kg

Question 5

A problem occuring in weldments caused by the non-uniform heating produced by the welding operation:

A) Porosity

B) Incomplete Fusion

C) Distortion

D) Slag Inclusions

E) None of the above

Answer 5

C) Distortion

Question 6

A tensile specimen having a cross sectional area of .25 sq in breaks at a load of 15.250 lbs. What is the tensile strength? (Tensile Strength= Load/Area):

A) 3,813 psi

B) 61,000 psi

C) 6,100 psi

D) 58,500 psi

E) None of the above

Answer 6

B) 61,000 psi

Question 7

Acetalyne becomes unstable above what pressure:

A) 5 psi

B) 10 psi

C) 15 psi

D) None of the above

Answer 7

C) 15 psi

Question 8

Before starting a job assignment, the welding inspector should have an understanding:

A) What code, standard, or specification applies

B) What inspection should be conducted

C) When inspections should be conducted

D) Where records are maintained

E) All of the above

Answer 8

E) All of the above

Question 9

Endurance limit is an expression used for what type of testing:

A) Fatigue

B) Hardness

C) Soundness

D) Tension

E) None of the above

Answer 9

A) Fatigue

Question 10

For best results, a braze joint should have:

A) Clean joint surface

B) A small clearance between pieces being joined

C) A large surface area for the joint area

D) Heat source

E) All of the above

Answer 10

E) All of the above

Question 11

For plain carbon steels, their approximate tensile strength can be estimated by multiplying their BHN by:

A) 300

B) 500

C) 200

D) 400

E) 100

Answer 11

B) 500

Question 12

For the portion of a single bevel butt joint where the two pieces to be joined come closest together is:

A) Radius

B) Joint root

C) Bevel angle

D) Groove angle

E) None of the above

Answer 12

B) Joint root

Question 13

How does brazing differ from welding:

A) No filler metal used

B) An oxyfuel flame is used

C) The base metal is not melted

D) All of the above

E) None of the above

Answer 13

C) The base metal is not melted

Question 14

How many preheat flame cones will appear if the cutting tip has 7 orifices:

A) 6

B) 5

C) 4

D) 3

Answer 14

A) 6

Question 15

Hydrogen in the molten weld metal can cause:

A) Undercut

B) Overlap

C) Cracking

D) Porosity

E) C and D

Answer 15

E) C and D

Question 16

If you make 72 on Part A, 78 on Part B, and 70 on Part C (You must retake which part)

A) Part A

B) Part B

C) Part C

D) All of the above

Answer 16

C) Part C

Question 17

In order for communications to be effective, it should for a “continuos loop”

True or False

Answer 17

True

Question 18

In oxygen cutting operation, one of the major safety hazards is the danger of:

A) Falling objects

B) Sparks and hot metal

C) Electrical shock

D) Burning flux flames

Answer 18

B) Sparks and hot metal

Question 19

Is typically used in the flat position unless a special apparatus is employed:

A) GMAW

B) SAW

C) FCAW

D) SMAW

E) GTAW

Answer 19

B) SAW

Question 20

Lock, Tag, and Ty procedure should be completed before working on equipment where machinery guards have been removed.

True or False

Answer 20

True

Question 21

Notch toughness and impact strength are not synonymous.

True or False

Answer 21

False

Question 22

Some toxic materials the welder may be exposed to are:

A) Cadmium

B) Chromium

C) Nickel

D) Lead

E) All of the above

Answer 22

E) All of the above

Question 23

Subarc and ESW processes are similar in that:

A) Both are arc welding processes

B) Both are shielding gases

C) Both use granular flux, which becomes molten

D) A and B

E) A and C

Answer 23

C) Both use granular flux, which becomes molten

Question 24

The CWI exam contains 3 parts (Part A, B, and C)

True or False

Answer 24

True

Question 25

The fillet weld break test is used to evaluate the: A) Quality of the fractured weld B) Ductility of the weld metal C) Impact strength of the weld D) Tensile strength of the base metal E) None of the above

Answer 25

A) Quality of the fractured weld

Question 26

The required spot weld size parameter can be shown as: A) A dimension to the right of the symbol B) A dimension of the required nugget diameter C) A value for the required shear strength per spot D) A or B E) B or C

Answer 26

E) B or C

Question 27

The term for the junction between the weld face and the base metal is: A) Leg B) Weld reinforcement C) Toe D) Root E) Weld Edge

Answer 27

C) Toe

Question 28

The type of weld applied to the opposite side of a joint before a single V-groove weld is completed on the near side of a joint is: A) Melt-through weld B) Backing weld C) Back weld D) Root weld E) None of the above

Answer 28

B) Backing weld

Question 29

The type of weld configuration formed when the length of a round bar is placed parallel against a flat surface is: A) Double flare bevel groove B) Single flare V groove C) Edge flange D) Corner flange E) None of the above

Answer 29

A) Double flare bevel groove

Question 30

The welding inspector is not concerned with the mechanical and chemical properties of metals. True or False

Answer 30

False

Question 31

The welding symbol shows the use of what type of completed weld: A) Single bevel-groove weld with backing weld B) Single bevel-groove weld with back weld C) Single V-groove weld with backing weld D) Single V-groove weld with back weld E) None of the above

Answer 31

C) Single V-groove weld with backing weld

Question 32

The yield strength of a material is determined by: A) Impact testing B) Tensile testing C) Hardness testing D) The offset method E) B and D

Answer 32

E) B and D

Question 33

There is an increasing need for weld quality because of: A) Safety B) Economics C) Less conservative design D) Government regulations E) All of the above

Answer 33

E) All of the above

Question 34

To successfully complete the CWI exam, individuals must pass all three parts with at least: A) 70% B) 72% C) 75% D) 78%

Answer 34

A) 70%

Question 35

To successfully complete the CWI exam, individuals must pass all three parts with at least: A) 70% B) 72% C) 75% D) 78%

Answer 35

A) 70%

Question 36

Very slow cooling of steel may result in the production of a soft, ductile microstructure which has a lamellar appearance when viewed under magnification. This structure is referred to as: A) Martensite B) Pearlite C) Bainite D) Ferrite E) Cementite

Answer 36

B) Pearlite

Question 37

Weld quality control should only begin after welding has been started. True or False

Answer 37

False

Question 38

Welding inspectors must often communicate with who: A) Welders B) Supervisors C) Welding engineers D) Members of management E) All of the above

Answer 38

E) All of the above

Question 39

What elements are required in a welding symbol? A) Reference line B) Weld symbol C) Arrow D) All of the above E) A and C

Answer 39

E) A and C

Question 40

What gases can be used with GMAW process: A) Carbon dioxide B) Argon-oxygen C) Argon-carbon dioxide D) Argon E) All of the above

Answer 40

E) All of the above

Question 41

What is the purpose of the coated electrodes for SMAW A) Forms gas shield B) Produces slag covering C) Supplies filler metal D) All of the above

Answer 41

D) All of the above

Question 42

What protective equipment is not suitable for eye protection from welding radiation: A) Welding helmet with filter plates B) Clear safety glasses C) Safety goggles with filter plates D) Protective screens E) Properly positioned barricades

Answer 42

B) Clear safety glasses

Question 43

When 2 pieces to be joined lie in parallel planes and their edges overlap is called: A) Lap B) Edge C) Butt D) Corner E) T

Answer 43

A) Lap

Question 44

When entering confined spaces, a "standby" is not required just as long as someone knows where you are at. True or False

Answer 44

False

Question 45

Which alloying element is commonly added to steel to improve its corrosion resistance: A) Carbon B) Aluminum C) Silicon D) Chromium E) None of the above

Answer 45

D) Chromium

Question 46

Which of the following is not a method used to eliminate or reduce residual stress: A) Vibratory stress relief B) External restraint C) Thermal stress relief D) Peening E) Annealing

Answer 46

B) External restraint

Question 47

Which of the following is not considered a soundness test: A) Fillet break B) Root bend C) Nick break D) Face bend E) Hardness

Answer 47

E) Hardness

Question 48

Which of the following represents a potential hazard while brazing: A) Fumes B) Fluxes C) Bright light D) All of the above

Answer 48

D) All of the above

Question 49

Which test is not considered a soundness test? A) Fillet break B) Root bend C) Nick break D) Face bend E) Hardness

Answer 49

E) Hardness

Question 50

You must have a high school diploma to become a CWI or you would be denied your certification. True or False

Answer 50

False