IRONWORKER NCCER Exam Newest 2025 Complete
150 Questions and Correct Detailed Answers
Already Graded A+
What type of power source yields a small welding current change when there is a large arc
voltage change? - ANSWER-constant 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. - ANSWER-amperage
If a cable that is too small in diameter is used for a welding application, then what could be the
result? - ANSWER-heat up and could cause a fire
There are 4 main groups of electrodes. These include fast-freeze, fast-fill, fill-freeze and
low______. - ANSWER-hydrogen
An electrode is classified as E7024. What does the 2 stand for? - ANSWER-flat and horizontal
,An electrode is classified as E6010. What does the 60 stand for? - ANSWER-tensile strength
Which of the following is the first step to follow when choosing a SMAW electrode for a specific
welding application? - ANSWER-select the required tensile strength
What can be the result of low hydrogen rods picking up moisture in the coating? - ANSWER-
hydrogen-induced cracking of the weld.
What SMAW technique is used to force the arc to stay ahead of the puddle? - ANSWER-drag
angle
In figure 8.1, the A is the______angle and B is the______angle. - ANSWER-travel, work
Most of the SMAW weld applications encountered will______beads when welding a single pass
weld or on the first pass of a multiple pass weld. - ANSWER-stringer
If the notation for a wide-flange beam is W12×14×8'6", the 14 indicates______. - ANSWER-
weight per foot of the beam in pounds.
During the shaking out, which of the following should be marked on each piece, in addition to
the fabricators mark? - ANSWER-the centerline or balance point of the piece.
Before a column can be erected, the shims or leveling nuts in place should be checked to ensure
that they are set at the proper______. - ANSWER-elevation
,The location of the anchor bolt in relation to other anchor bolts in the same pattern should not
deviate more than + or - - ANSWER-1/8
When columns are erected ironworkers should only erect______. - ANSWER-as many as can
be tied together with beams that day.
When can plumbing of structural members start? - ANSWER-As soon as the raising gang erects
the first elevation of columns and beams or a tier of columns and beams.
The simplest plumbing tool, consisting of a line with a brass weight on it is a______. -
ANSWER-plumb bob
The main difference between A325 and A490 bolts is______. - ANSWER-the amount of tensile
strength they can withstand before failure.
The formula for calculating the length of the bolt needed is______. - ANSWER-Length of bolt =
thickness of metal(grip) + bolt diameter +1/4" + thickness of washer(if used)
The most tension a bolt can take without failing is called______strength. - ANSWER-tensile
To minimize the number of times a connection must be pinned, and ironworker should place
the pin in the most difficult connection to be held first. This is usually the hole______. -
ANSWER-with the least amount of daylight showing through.
, When using the turn-of-nut method to tension bolts, the amount of turn beyond the snug
position required varies from a______. - ANSWER-1/3 turn to a 2/3 turn.
The two basic connection design types are shear connections and______ connections. -
ANSWER-moment
Bolts that us bolted angle cleat connections and share bolt holes between the webs of columns
and girders over more than one bay of a structure are called______. - ANSWER-double
The lanyard attached to a full body harness should be able to withstand a______ pound shock
load. - ANSWER-5000
If the structural steel to be used on a job site is galvanized, the bolts used should be______. -
ANSWER-galvanized
Once removed from protected storage, bolts can dry out in as little as a few______. -
ANSWER-days.
The giant stone slabs of Stonehenge, weighing 40 to 50 tons each, were brought to an upright
position using a series of______and fulcrum. - ANSWER-levers
The two chief functions of a pulley are to shorten the distance through which a force is
transmitted and to______. - ANSWER-change the direction of a transmitted force.
The kindling temperature of steel is - ANSWER-1600 degrees
150 Questions and Correct Detailed Answers
Already Graded A+
What type of power source yields a small welding current change when there is a large arc
voltage change? - ANSWER-constant 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. - ANSWER-amperage
If a cable that is too small in diameter is used for a welding application, then what could be the
result? - ANSWER-heat up and could cause a fire
There are 4 main groups of electrodes. These include fast-freeze, fast-fill, fill-freeze and
low______. - ANSWER-hydrogen
An electrode is classified as E7024. What does the 2 stand for? - ANSWER-flat and horizontal
,An electrode is classified as E6010. What does the 60 stand for? - ANSWER-tensile strength
Which of the following is the first step to follow when choosing a SMAW electrode for a specific
welding application? - ANSWER-select the required tensile strength
What can be the result of low hydrogen rods picking up moisture in the coating? - ANSWER-
hydrogen-induced cracking of the weld.
What SMAW technique is used to force the arc to stay ahead of the puddle? - ANSWER-drag
angle
In figure 8.1, the A is the______angle and B is the______angle. - ANSWER-travel, work
Most of the SMAW weld applications encountered will______beads when welding a single pass
weld or on the first pass of a multiple pass weld. - ANSWER-stringer
If the notation for a wide-flange beam is W12×14×8'6", the 14 indicates______. - ANSWER-
weight per foot of the beam in pounds.
During the shaking out, which of the following should be marked on each piece, in addition to
the fabricators mark? - ANSWER-the centerline or balance point of the piece.
Before a column can be erected, the shims or leveling nuts in place should be checked to ensure
that they are set at the proper______. - ANSWER-elevation
,The location of the anchor bolt in relation to other anchor bolts in the same pattern should not
deviate more than + or - - ANSWER-1/8
When columns are erected ironworkers should only erect______. - ANSWER-as many as can
be tied together with beams that day.
When can plumbing of structural members start? - ANSWER-As soon as the raising gang erects
the first elevation of columns and beams or a tier of columns and beams.
The simplest plumbing tool, consisting of a line with a brass weight on it is a______. -
ANSWER-plumb bob
The main difference between A325 and A490 bolts is______. - ANSWER-the amount of tensile
strength they can withstand before failure.
The formula for calculating the length of the bolt needed is______. - ANSWER-Length of bolt =
thickness of metal(grip) + bolt diameter +1/4" + thickness of washer(if used)
The most tension a bolt can take without failing is called______strength. - ANSWER-tensile
To minimize the number of times a connection must be pinned, and ironworker should place
the pin in the most difficult connection to be held first. This is usually the hole______. -
ANSWER-with the least amount of daylight showing through.
, When using the turn-of-nut method to tension bolts, the amount of turn beyond the snug
position required varies from a______. - ANSWER-1/3 turn to a 2/3 turn.
The two basic connection design types are shear connections and______ connections. -
ANSWER-moment
Bolts that us bolted angle cleat connections and share bolt holes between the webs of columns
and girders over more than one bay of a structure are called______. - ANSWER-double
The lanyard attached to a full body harness should be able to withstand a______ pound shock
load. - ANSWER-5000
If the structural steel to be used on a job site is galvanized, the bolts used should be______. -
ANSWER-galvanized
Once removed from protected storage, bolts can dry out in as little as a few______. -
ANSWER-days.
The giant stone slabs of Stonehenge, weighing 40 to 50 tons each, were brought to an upright
position using a series of______and fulcrum. - ANSWER-levers
The two chief functions of a pulley are to shorten the distance through which a force is
transmitted and to______. - ANSWER-change the direction of a transmitted force.
The kindling temperature of steel is - ANSWER-1600 degrees
