1 | Page
NCCER Ironworker Final Exam
Which of the following conditions will cause carburizing or
reducing flame? - ANSWER-excess acetylene
If an operator using an OFC process produced an irregular cut
surface with pitting and undercutting, the most likely cause is -
ANSWER-a dirty cutting tip
which of the following is basic definition of concrete? -
ANSWER-artificially made rock
what is the term for the weight of all moving and constantly
acting loads? - ANSWER-live load
which of the following is not one of the three basic components
of concrete? - ANSWER-lime
which of the following is the most accurate range of strengths
for concrete? - ANSWER-3000 to 20,000 psi
,2 | Page
NCCER Ironworker Final Exam
when reinforcing concrete, what does the steel add to the
concrete? - ANSWER-tensile strength
what size wire is used to tie most rebar? - ANSWER-16
which of the following is a low foundation wall of sufficient
depth to extend below the frost line? - ANSWER-grade beam
concrete is strong in compression and______, but weak
in______. - ANSWER-shear, tension
what are the small "U" or "W" shaped bars placed across a beam
to resist diagonal tension known as? - ANSWER-stirrups
Bar supports are also referred to as - ANSWER-accessories
,3 | Page
NCCER Ironworker Final Exam
the function of the______is to safely transmit the superstructure
loads to the ground without causing settlement. -
ANSWERfoundation
in order to connect the column to its supports,______are
required. - ANSWER-dowels
in erecting a wall where the footings have been previously
doweled, it is necessary for all dowels to be______and______. -
ANSWER-straight, in-line
columns are made up of vertical bars and - ANSWER-bands or
ties
what are the end supports for a beam bridge called? -
ANSWERabutments
SMAW uses which of the following electrode polarities? -
ANSWER-all of the above
, 4 | Page
NCCER Ironworker Final Exam
All arc-welding processes require a continuous supply of
electrical current. What type of current can be used for SMAW?
- ANSWER-AC or DC
What type of power source yields a small welding current
change when there is a large arc voltage change? -
ANSWERconstant current power source.
the majority of SMAW welding is done using direct current
electrode positive (DCEP). This is also known as______. -
ANSWER-reverse polarity
Arc length can be defined as the distance from the end of the
electrode to the______. - ANSWER-work piece
The electrode assembly for a specific welding application is
selected based on the______being used to weld. -
ANSWERamperage
NCCER Ironworker Final Exam
Which of the following conditions will cause carburizing or
reducing flame? - ANSWER-excess acetylene
If an operator using an OFC process produced an irregular cut
surface with pitting and undercutting, the most likely cause is -
ANSWER-a dirty cutting tip
which of the following is basic definition of concrete? -
ANSWER-artificially made rock
what is the term for the weight of all moving and constantly
acting loads? - ANSWER-live load
which of the following is not one of the three basic components
of concrete? - ANSWER-lime
which of the following is the most accurate range of strengths
for concrete? - ANSWER-3000 to 20,000 psi
,2 | Page
NCCER Ironworker Final Exam
when reinforcing concrete, what does the steel add to the
concrete? - ANSWER-tensile strength
what size wire is used to tie most rebar? - ANSWER-16
which of the following is a low foundation wall of sufficient
depth to extend below the frost line? - ANSWER-grade beam
concrete is strong in compression and______, but weak
in______. - ANSWER-shear, tension
what are the small "U" or "W" shaped bars placed across a beam
to resist diagonal tension known as? - ANSWER-stirrups
Bar supports are also referred to as - ANSWER-accessories
,3 | Page
NCCER Ironworker Final Exam
the function of the______is to safely transmit the superstructure
loads to the ground without causing settlement. -
ANSWERfoundation
in order to connect the column to its supports,______are
required. - ANSWER-dowels
in erecting a wall where the footings have been previously
doweled, it is necessary for all dowels to be______and______. -
ANSWER-straight, in-line
columns are made up of vertical bars and - ANSWER-bands or
ties
what are the end supports for a beam bridge called? -
ANSWERabutments
SMAW uses which of the following electrode polarities? -
ANSWER-all of the above
, 4 | Page
NCCER Ironworker Final Exam
All arc-welding processes require a continuous supply of
electrical current. What type of current can be used for SMAW?
- ANSWER-AC or DC
What type of power source yields a small welding current
change when there is a large arc voltage change? -
ANSWERconstant current power source.
the majority of SMAW welding is done using direct current
electrode positive (DCEP). This is also known as______. -
ANSWER-reverse polarity
Arc length can be defined as the distance from the end of the
electrode to the______. - ANSWER-work piece
The electrode assembly for a specific welding application is
selected based on the______being used to weld. -
ANSWERamperage
