Trade Secrets Exam Questions

Question 1

Is a chain-link has the letter "A" stamped on it, that means the chain is:
A) A okay
B) made of aluminum
C) high-strength low alloy steel
D) an alloy chain

Answer 1

D. An alloy chain.

Question 2

The jaws of a vice can be described as being \_\_\_\_\_\_\_ and serrated. 
A) hardened
B) soft ductile
C) contorted
D) annealed

Answer 2

A. Hardened.

Question 3

One advantage of braze welding over castings is that the braze weld offers:
A) joint flexibility
B) extra hardness
C) superior strength
D) less stress

Answer 3

A. Joint flexibility.

Question 4

If you think a confined space may have harmful fumes you must do what before entering the area?
A) open all the vents and hatches for two hours
B) light a match to see if there is fumes
C) ask your help her to go in and check
D) put on respiratory equipment

Answer 4

D. Put on respiratory equipment.

Question 5

Convexity and excessive reinforcement in a weld can be caused by:
A) insufficient current
B) incorrect electrode
C) too slow of travel speed
D) all of the above

Answer 5

D. All of the above.

Question 6

Structural discontinuities will be generally caused:
A) by using the incorrect electrode
B) during the welding operation
C) by distortion after the weld operation
D) before the welding begins

Answer 6

B. During the welding operation.

Question 7

If two or more cranes are used to lift one load, how many signalmen are required?
A) depends on the number of cranes
B) never less than two
C) one for each corner of the load
D) only one signalman

Answer 7

D. Only one signalmen.

Question 8

Silver brazing alloys can be used to join most ferrous and nonferrous metals except for:
A) copper
B) cast iron
C) cadmium
D) magnesium

Answer 8

D. Magnesium.

Question 9

As a general rule, the maximum material thickness for a double welded square grooves weld is \_\_\_\_\_ millimetres.
A) 3.2
B) 2.3
C) 4.3
D) 6.4

Answer 9

D. 6.4.

Question 10

When a forehand inclination is compared to a backend inclination, it can be seen that the backhand will produce a:
A) flatter bead with less penetration
B) flatter bead with deeper penetration
C) narrower bead with a higher 
D) narrow bead with a lower crown

Answer 10

C. Narrower bead with a higher crown.

Question 11

Argon is an excellent gas to use as a shielding gas because it has a significant effect on:
A) globular transfer modes
B) metal transfer modes
C) short circuits
D) both globular and short circuits

Answer 11

B. Metal transfer modes.

Question 12

When comparing the AWS and the CSA classification systems for mild steel electrodes, the welding positions for each of the systems are the same.

True or false?

Answer 12

True. When comparing the AWS and the CSA classification systems for mild steel electrodes, the welding positions for each of the systems are the same.

Question 13

A welder should wear what kind of gloves when exposed to intense heat?
A) oiled leather
B) chrome tanned leather
C) aluminized leather
D) cotton

Answer 13

C. Aluminized leather.

Question 14

Flux is not required when welding:
A) gray cast iron
B) aluminum
C) iron compound
D) mild steel

Answer 14

D. Mild steel.

Question 15

The most accurate method to determine the amount of acetylene gas left of the cylinder is to:
A) read the gauge
B) shake it and listen
C) weigh the cylinder
D) look for condensation marks

Answer 15

C. Weigh the cylinder.

Question 16

When referring to the torch inclination of a cutting torch you can say that it is the angle of the torch relative to the:
A) direction of travel
B) metal angle
C) angle of weld
D) torch tip

Answer 16

A. Direction of travel.

Question 17

When corrosion is a factor, which filler metals are used?
A) magnesium
B) cobalt
C) copper
D) nickel

Answer 17

D. Nickel.

Question 18

According to Occupational Health & Safety regulations, how many parts per million of hydrogen sulfide is the maximum exposure that a welder can be exposed to four and eight hour day?
A) 5
B)10
C) 15
D) 20

Answer 18

B. 10 ppm of hydrogen sulfide is the maximum exposure that a welder can be exposed to in an eight hour day.

Question 19

At a \_\_\_\_\_ degree sling angle the load each leg of a two legs sling will be equal to the weight of the load being lifted.
A) 90
B) 60
C) 45
D) 30

Answer 19

D. 30°.

Question 20

In a SMAW DC welding circuit, straight polarity occurs when the electrode is positive.

True or false?

Answer 20

False.

Question 21

One problem that can occur when using high carbon dioxide gas flow rates is:
A) increased flowrates occur
B) liquid could boil
C) little condensation forms
D) dry ice can form

Answer 21

D. Dry ice can form.

Question 22

When maximum drive force is required for flux core wire, which drive roll system is generally used?
A) serrated
B) angled
C) V grooved
D) U grooved

Answer 22

A. Serrated.

Question 23

Failure to melt into the surface of a joint is referred to as:
A) burn through
B) undercut
C) lack of penetration
D) lack of fusion

Answer 23

C. Lack of penetration.

Question 24

With constant current type welding machines, what voltage range is normally needed to initiate an arc?
A) 17 to 40 V
B) 50 to 100 V
C) 100 to 120 V
D) 200 to 400 V

Answer 24

B. 50 to 100 V.

Question 25

Materials such as \_\_\_\_\_\_\_\_ steels are prone to hot cracking.
A) low carbon
B) cryogenic
C) nickel
D) sulphur bearing

Answer 25

D. Sulphur bearing.

Question 26

When cutting cast iron with your hacksaw, the Best sawblade to use would be:
A) a flexible blade
B) an all hard blade
C) a dull blade
D) a raker blade

Answer 26

B. An all hard blade.

Question 27

Which of the following joint preparations for a corner joint requires only one member of the joint to be prepared?
A) single Vee joint
B) single U joint
C) double J joint
D) double C joint

Answer 27

C) double J joint.

Question 28

True or false:

With gas tungsten arc welding, the electrode used is considered a consumable electrode.

Answer 28

False. The electrode used during gas tungsten arc welding is not considered a consumable electrode.

Question 29

A filler metal with a prefix that states "RB" may be used as:
A) a rough blank filler material
B) a welding rod or brazing filler metal
C) whatever you want, it does not matter
D) a rough brazing material

Answer 29

B. A welding rod or brazing filler metal.