Question 1

In general, welding operations will produce distortions in the pieces welded together.

Accepted Answer

Welding operations involve heating and melting metal pieces together, which can cause them to expand and contract unevenly, resulting in distortions or warping.

Question 2

____ provides satisfactory joints for low temperature, low pressure applications.&#10;A) Soldering&#10;B) Flame cutting&#10;C) Brazing&#10;D) Steam fitting

Accepted Answer

Soldering is a process where a filler metal is melted into the joint between two pieces of metal. Soldering is ideal for low temperature, low pressure applications as it typically involves melting the filler metal at temperatures below 450 degrees Celsius. It is also a relatively quick and easy process, making it a popular choice for DIY projects and small-scale manufacturing.

Question 3

The first and foremost concern in all welding work is&#10;A) safety.&#10;B) selection of tools.&#10;C) selection of gas cylinders.&#10;D) torch size.

Accepted Answer

Safety is the topmost concern in welding work as it involves working with high heat, sparks, and potentially dangerous fumes. Without proper safety precautions, welding can pose a risk of fire, explosion, or injury to the welder or others in the vicinity. Therefore, it is essential to follow safety protocols and wear appropriate personal protective equipment while performing welding work.

Question 4

Which of the following is NOT a consideration affecting the efficiency of making soldered joints?&#10;A) torch tip size&#10;B) fuel pressure&#10;C) type of solder and flux&#10;D) fuel tank size

Accepted Answer

Fuel tank size does not affect the efficiency of making soldered joints, as it is not directly related to the soldering process. Torch tip size, fuel pressure, and the type of solder and flux used are all important factors that can impact the quality and effectiveness of soldered joints.

Question 5

Soldering provides excellent joints for which types of applications?&#10;A) high temperature, high pressure&#10;B) high temperature, low pressure&#10;C) low temperature, low pressure&#10;D) low temperature, high pressure

Accepted Answer

Soldering is most suitable for low temperature, low pressure applications because it involves the use of a filler metal (solder) that melts at relatively low temperatures to join materials without significantly heating the parts to be joined, making it unsuitable for high temperature or high pressure environments.

Question 6

An inert gas must be passed through the tubing system when brazing to prevent oxidation of the inside surfaces of the material.

Accepted Answer

Inert gas, such as nitrogen or argon, is commonly used in brazing to create a protective atmosphere that prevents oxidation of the inside surfaces of the material being brazed.

Question 7

Solder joints are suitable for copper tubing applications for fluids up to 250&#176;F and 100 psi.

Accepted Answer

Solder joints are commonly used for copper tubing applications in plumbing and HVAC systems, and they are generally suitable for fluids up to 250°F and 100 psi. However, it is important to note that solder joints may not be appropriate for all types of fluids and conditions, and other types of joints such as compression or flare fittings may be required for higher pressures or temperatures.

Question 8

A ____ is the void produced in the work by the cutting process.&#10;A) drag&#10;B) kerf&#10;C) slice&#10;D) puddle

Accepted Answer

The term "kerf" is used to describe the width of the cut made by a saw or other cutting tool. It is the void produced in the work by the cutting process. A "drag" may refer to the resistance encountered in cutting, but it does not describe the void produced. "Slice" refers to the act of cutting, but not the resulting void. "Puddle" has no relation to cutting.

Question 9

When two pieces are to be joined together, it is necessary to form adjacent puddles at the edges and have the puddles flow together.

Accepted Answer

Forming adjacent puddles at the edges and having them flow together is necessary for joining two pieces together.

Question 10

A ____ is an area of molten material created so two pieces of metal can be joined together.&#10;A) drag&#10;B) kerf&#10;C) slice&#10;D) puddle

Accepted Answer

A puddle is an area of molten material that is created when two pieces of metal are joined together using techniques such as welding or soldering. The heat causes the metals to melt and fuse together, forming a strong bond. The other choices (drag, kerf, and slice) do not accurately describe the process of joining metals using a puddle of molten material.

Question 11

____ involves filler materials that melt at temperatures above 1000&#176;F.&#10;A) Soldering&#10;B) Flame cutting&#10;C) Brazing&#10;D) Steam fitting

Accepted Answer

The answer of ____ involves filler materials that melt at...

Question 12

Soldering is preferred when joints are buried.

Accepted Answer

The answer of Soldering is preferred when joints are buried....

Question 13

Eye protection is necessary for&#10;A) welding.&#10;B) brazing.&#10;C) soldering.&#10;D) all of the above.

Accepted Answer

The answer of Eye protection is necessary for&#10;A) welding.&#10;B) brazing.&#10;C)...

Question 14

Which of the following is NOT a consideration in determining the joint method for steel or copper?&#10;A) outside diameter of the pipe.&#10;B) pipe material.&#10;C) operating temperatures and pressures.&#10;D) fluid inside the pipe.

Accepted Answer

The answer of Which of the following is NOT a...

Question 15

In many soldering and brazing operations, ____ is used to aid in making a joint.&#10;A) paste&#10;B) flux&#10;C) sandcloth&#10;D) lead

Accepted Answer

The answer of In many soldering and brazing operations, ____...

Deck 5: Soldering, Brazing, Cutting, and Gas Welding