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CNMI Metal Fabrication Technician Certification Exam
Practice Questions And Correct Answers||Verified
Exam!!!|| (Verified Answers) Plus Rationales 2026/2027
Q&A | Instant Download Pdf
What is the difference between bending and forming -
Answer-Bending: Usually in a straight line and single
angles at one time
Forming: Usually single or multiple angles along curved
lines or curved surfaces all at once
What is bending - Answer--Use a brake
-Brakes use break dies
What are break dies - Answer-Consist of a upper die and
lower die
What types of brakes are available - Answer-manual brake
hydraulic break
mechanical brake
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What is a press brake - Answer-Can be manually set up or
CNC
if manual, you must set up the backstop and stroke
CNC is more efficient
What is forming - Answer-Achieved by hand or with
machinery
forming requires form blocks
form blocks can be either hand form or press form
what is spring back - Answer-The material resists the
bending forces applied and will spring back by a number
of degrees
what is spring back compensation - Answer-The condition
or degree of hardness of the material that governs the
amount of spring back
it must be built into form tools to ensure the correct bend
angle is achieved
it varies from material and its thickness
, 3|Page
Why must you bend metal perpendicular to the grain -
Answer-creates optimum strength
it will become weak or crack if not
What is developed length - Answer-the correct length of
material must be calculated and then measured or laid out
on the stock and cut to size before bending
what is bend allowance - Answer-the amount of extra
material needed for a bend to compensate for the
compression taking place during bending.
must be calculated in order to compute the overall length
of the flat pattern
bend allowance is calculated on the neutral axis of the
bend using an empirical formula
Why is heat treating done - Answer-thermal treatments
rearrange internal chemical composition
this is done often to facilitate a manufacturing process
such as forming. Or to facilitate an engineering
requirement
CNMI Metal Fabrication Technician Certification Exam
Practice Questions And Correct Answers||Verified
Exam!!!|| (Verified Answers) Plus Rationales 2026/2027
Q&A | Instant Download Pdf
What is the difference between bending and forming -
Answer-Bending: Usually in a straight line and single
angles at one time
Forming: Usually single or multiple angles along curved
lines or curved surfaces all at once
What is bending - Answer--Use a brake
-Brakes use break dies
What are break dies - Answer-Consist of a upper die and
lower die
What types of brakes are available - Answer-manual brake
hydraulic break
mechanical brake
,2|Page
What is a press brake - Answer-Can be manually set up or
CNC
if manual, you must set up the backstop and stroke
CNC is more efficient
What is forming - Answer-Achieved by hand or with
machinery
forming requires form blocks
form blocks can be either hand form or press form
what is spring back - Answer-The material resists the
bending forces applied and will spring back by a number
of degrees
what is spring back compensation - Answer-The condition
or degree of hardness of the material that governs the
amount of spring back
it must be built into form tools to ensure the correct bend
angle is achieved
it varies from material and its thickness
, 3|Page
Why must you bend metal perpendicular to the grain -
Answer-creates optimum strength
it will become weak or crack if not
What is developed length - Answer-the correct length of
material must be calculated and then measured or laid out
on the stock and cut to size before bending
what is bend allowance - Answer-the amount of extra
material needed for a bend to compensate for the
compression taking place during bending.
must be calculated in order to compute the overall length
of the flat pattern
bend allowance is calculated on the neutral axis of the
bend using an empirical formula
Why is heat treating done - Answer-thermal treatments
rearrange internal chemical composition
this is done often to facilitate a manufacturing process
such as forming. Or to facilitate an engineering
requirement
