Question 1

The distance that the bottom of the cut is behind the top is known as the ____________________.

Accepted Answer

The answer of The distance that the bottom of the...

Question 2

____________________ is produced by smelting coke (a coal by-product) and lime in air-tight electric arc furnaces.

Accepted Answer

The answer of ____________________ is produced by smelting coke (a...

Question 3

Most cutting tips are made of ____.

Accepted Answer

A)   copper alloy
B)   stainless steel
C)   cast iron
D)   nickel alloy

Question 4

When cutting pipe freehand, if the pipe is larger than three inches in diameter, ____.

Accepted Answer

A)   the torch tip is always pointed away from the center of the pipe
B)   the torch tip is always pointed toward the center of the pipe
C)   the torch tip is held straight up and down
D)   the torch tip is held straight down

Question 5

How is a torch tip seal checked for a leak?

Accepted Answer

A)   Place your finger over the end of the tip and spray the fitting with a leak detector.
B)   Turn on the oxygen valve and spray the tip with leak-detecting solution.
C)   Put the cutting head in the cooling tank and look for bubbles.
D)   Clean the fitting with a dry clean rag, and tighten the fitting with a 12 in. adjustable wrench.

Question 6

Combination cutting and welding sets are often used in ____________.

Accepted Answer

A)   auto body shops
B)   small welding shops
C)   schools
D)   All of the above

Question 7

If a large cutting tip pops when the acetylene is turned off, ____.

Accepted Answer

A)   turn the oxygen off first
B)   turn the acetylene back on
C)   it is defective and must be discarded
D)   it must be repaired

Question 8

If a cut is to be started in a place other than the edge of the plate, ____.

Accepted Answer

A)   the inner cones should be held as close as possible to the metal
B)   the inner cones should be as far as possible from the metal
C)   hold the torch at a right angle and pointing slightly away from the plate
D)   hold the torch at a 45 degree angle, pointing slightly toward the plate

Question 9

The final products of all clean-burning hydrocarbon flames are ____.

Accepted Answer

A)   oxygen and carbon
B)   carbon dioxide and hydrogen
C)   water vapor and oxygen
D)   water vapor and carbon dioxide

Question 10

A molecule of acetylene is made up of ____.

Accepted Answer

A)   one acetone atom and one carbon atom
B)   two oxygen atoms and two carbon atoms
C)   one hydrogen atom and one carbon atom
D)   two hydrogen atoms and two carbon atoms

Question 11

When cutting ____________________ diameter pipe, the torch tip is held straight up and down and moved from the center to each side.

Accepted Answer

The answer of When cutting ____________________ diameter pipe, the torch...

Question 12

In a cutting torch, ____________________ is mixed with the fuel gas to form a high-temperature preheating flame.

Accepted Answer

The answer of In a cutting torch, ____________________ is mixed...

Question 13

Of the following fuel gases, which has the fastest burning velocity?

Accepted Answer

A)   Acetylene
B)   Natural gas
C)   Propane
D)   Hydrogen

Question 14

The pressure shown on a gauge is read as ____ .

Accepted Answer

A)   pounds per square inch
B)   foot-pounds
C)   kilograms per square inch
D)   kilojoules

Question 15

An infrared analysis or ____________________ of the flame gives the highest temperature in the flame.

Accepted Answer

The answer of An infrared analysis or ____________________ of the...

Question 16

The heat produced by the secondary flame of an MPS gas is about ____ the heat of acetylene.

Accepted Answer

A)   half
B)   the same as
C)   twice
D)   three times

Question 17

In some cylinders a(n) ____________________ tube is used to improve the mixing of the gas by causing the liquid to be agitated as it is used.

Accepted Answer

The answer of In some cylinders a(n) ____________________ tube is...

Question 18

When removing a cutting tip, if the tip is stuck in the torch head, ____.

Accepted Answer

A)   cut off the tip and discard it
B)   discard the torch head
C)   tap the back of the head with a plastic hammer
D)   tap the side of the tip with a plastic hammer

Question 19

What are some of the various oxyfuel cutting specialties that can be found on a job?

Accepted Answer

A)   Flame cutting
B)   Gouging
C)   Beveling
D)   All of the above

Question 20

What is backfire and what are its causes?

Accepted Answer

A backfire occurs when a flame goes out ...

Exam 7: Flame Cutting Equipment, Setup, and Operation

The final products of all clean-burning hydrocarbon flames are ____.

Correct AnswerverifiedShow Answer

A molecule of acetylene is made up of ____.

Correct AnswerverifiedShow Answer

If a large cutting tip pops when the acetylene is turned off, ____.

Correct AnswerverifiedShow Answer

What is backfire and what are its causes?

Correct AnswerverifiedA backfire occurs when a flame goes out ...View AnswerShow Answer

In a cutting torch, ____________________ is mixed with the fuel gas to form a high-temperature preheating flame.

Correct AnswerverifiedShow Answer

The distance that the bottom of the cut is behind the top is known as the ____________________.

Correct AnswerverifiedShow Answer

When cutting ____________________ diameter pipe, the torch tip is held straight up and down and moved from the center to each side.

Correct AnswerverifiedShow Answer

Of the following fuel gases, which has the fastest burning velocity?

Correct AnswerverifiedShow Answer

When cutting pipe freehand, if the pipe is larger than three inches in diameter, ____.

Correct AnswerverifiedShow Answer

Most cutting tips are made of ____.

Correct AnswerverifiedShow Answer

When removing a cutting tip, if the tip is stuck in the torch head, ____.

Correct AnswerverifiedShow Answer

An infrared analysis or ____________________ of the flame gives the highest temperature in the flame.

Correct AnswerverifiedShow Answer

Combination cutting and welding sets are often used in ____________.

Correct AnswerverifiedShow Answer

In some cylinders a(n) ____________________ tube is used to improve the mixing of the gas by causing the liquid to be agitated as it is used.

Correct AnswerverifiedShow Answer

How is a torch tip seal checked for a leak?

Correct AnswerverifiedShow Answer

The heat produced by the secondary flame of an MPS gas is about ____ the heat of acetylene.

Correct AnswerverifiedShow Answer

The pressure shown on a gauge is read as ____ .

Correct AnswerverifiedShow Answer

____________________ is produced by smelting coke (a coal by-product) and lime in air-tight electric arc furnaces.

Correct AnswerverifiedShow Answer

What are some of the various oxyfuel cutting specialties that can be found on a job?

Correct AnswerverifiedShow Answer

If a cut is to be started in a place other than the edge of the plate, ____.

Correct AnswerverifiedShow Answer

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A backfire occurs when a flame goes out ...
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