Question 1

The heat produced by a rectifier ____.

Accepted Answer

A)  leads to a higher amperage in DC than AC 
B)  reduces the power efficiency of the welding machine 
C)  increases the power efficiency of the welding machine 
D)  can be recycled in a heat sink to provide power to other machines 
A)  leads to a higher amperage in DC than AC 
B)  reduces the power efficiency of the welding machine 
C)  increases the power efficiency of the welding machine 
D)  can be recycled in a heat sink to provide power to other machines

Question 2

Welding cables made of aluminum wire must be ____ would be required for copper.

Accepted Answer

A)  one size smaller than 
B)  the same size as 
C)  one size larger than 
D)  two sizes larger than 
A)  one size smaller than 
B)  the same size as 
C)  one size larger than 
D)  two sizes larger than

Question 3

____________________ is the measurement of the amount of electrical energy or power in the arc.

Accepted Answer

The answer of ____________________ is the measurement of the amount...

Question 4

____ machines are adjusted by turning a handwheel that moves the internal parts closer together or farther apart.

Accepted Answer

A)  Movable coil 
B)  Tap type 
C)  Inverter 
D)  Transformer 
A)  Movable coil 
B)  Tap type 
C)  Inverter 
D)  Transformer

Question 5

​Inverter welders may have transformers as light as ____________.

Accepted Answer

A)  ​35 lb (16 kg) 
B)  ​2.2 lb (1 kg) 
C)  ​17 lb (7.7 kg) 
D)  ​7 lb (3 kg) 
A)  ​35 lb (16 kg) 
B)  ​2.2 lb (1 kg) 
C)  ​17 lb (7.7 kg) 
D)  ​7 lb (3 kg)

Question 6

In a(n) ____________________ welding machine the incoming power is changed from 60 cycles per second to several thousand cycles per second.

Accepted Answer

The answer of In a(n) ____________________ welding machine the incoming...

Question 7

The major classifications of welding machines are ____.

Accepted Answer

A)  multiple core, inversion, transformer 
B)  multiple inversion, transformer core, and step-down 
C)  multiple coil, movable coil, movable core, and inverter 
D)  magnetic core, movable coil, and transformer 
A)  multiple core, inversion, transformer 
B)  multiple inversion, transformer core, and step-down 
C)  multiple coil, movable coil, movable core, and inverter 
D)  magnetic core, movable coil, and transformer

Question 8

​The air that circulates through a welding machine should be free of _______​

Accepted Answer

A)  ​dust. 
B)  ​oil. 
C)  ​metal filings. 
D)  ​All of the above 
A)  ​dust. 
B)  ​oil. 
C)  ​metal filings. 
D)  ​All of the above

Question 9

​The temperature of an arc can range between 5500°F (3000°C) to above 36,000°F (20,000°C) but most SMAW temperatures are around __________.

Accepted Answer

A)  ​4500°F (2500°
C)  
B)  ​3200°F (18000°
C)  
C)  ​1100°F (6100°
C)  
D)  ​6000°F (3300°
C)  
A)  ​4500°F (2500°
C)  
B)  ​3200°F (18000°
C)  
C)  ​1100°F (6100°
C)  
D)  ​6000°F (3300°
C)

Question 10

An electric current is the flow of ____________________.

Accepted Answer

The answer of An electric current is the flow of...

Exam 3: Shielded Metal Arc Equipment, Setup, and Operation

The heat produced by a rectifier ____.

Welding cables made of aluminum wire must be ____ would be required for copper.

____________________ is the measurement of the amount of electrical energy or power in the arc.

____ machines are adjusted by turning a handwheel that moves the internal parts closer together or farther apart.

​Inverter welders may have transformers as light as ____________.

In a(n) ____________________ welding machine the incoming power is changed from 60 cycles per second to several thousand cycles per second.

The major classifications of welding machines are ____.

​The air that circulates through a welding machine should be free of _______​

​The temperature of an arc can range between 5500°F (3000°C) to above 36,000°F (20,000°C) but most SMAW temperatures are around __________.

An electric current is the flow of ____________________.

Introduction to Welding

Safety in Welding

Shielded Metal Arc Welding of Plate

Shielded Metal Arc Welding of Pipe

Shielded Metal Arc Welding Aws Sense Certification

Flame Cutting

Plasma Arc Cutting

Related Cutting Processes

Gas Metal Arc Welding Equipment, Setup, and Operation

Gas Metal Arc Welding

Flux Cored Arc Welding Equipment, Setup, and Operation

Flux Cored Arc Welding

Gas Metal Arc and Flux Cored Arc Welding of Pipe

Gas Metal Arc and Flux Cored Arc Welding Aws Sense Certification

Gas Tungsten Arc Welding Equipment, Setup, Operation, and Filler Metals

Gas Tungsten Arc Welding of Plate

Gas Tungsten Arc Welding of Pipe

Gas Tungsten Arc Welding Plate and Pipe Aws Sense Certification

Shop Math and Weld Cost

Reading Technical Drawings

Welding Joint Design and Welding Symbols

Fabricating Techniques and Practices

Welding Codes and Standards

Testing and Inspection of Welds

Welding Metallurgy

Weldability of Metals

Filler Metal Selection

Welding Automation and Robotics

Other Welding Processes

Oxyfuel Welding and Cutting Equipment, Setup, and Operation

Oxyacetylene Welding

Brazing, Braze Welding, and Soldering

Filters

Inverter welders may have transformers as light as ____________.

The air that circulates through a welding machine should be free of _______

The temperature of an arc can range between 5500°F (3000°C) to above 36,000°F (20,000°C) but most SMAW temperatures are around __________.