✓ IRON WORKER FINAL ULTIMATE STUDY GUIDE +
PRACTICE QUESTIONS FOR MIDTERM & FINAL
EXAMS
the kindling temperature of steel is - correct answer -1600 degrees
one advantage of the OFC process is that it is - correct answer -portable
the materials that can be cut with OFC are limited primarily to _______materials - correct
answer -ferrous
A welder opens the cylinder valve slightly and closes it immediately. what process did he/she
perform? - correct answer -cracking the cylinder
A device that prevents the reverse flow of gasses that would result in a combustible mixture in
the welding hose is a - correct answer -check valve
A condition in which the flame burns inside the tip, torch or hose is known as a - correct answer
-flashback
acetylene cylinder valves should be opened only approximately one to one-and-a-half turns to -
correct answer -provide quick closure in case of an emergency
most oxygen and fuel gas regulators have gauges that measure actual pressure in the cylinder
and - correct answer -pressure at the torch
while oxygen cylinder pressure may be as high as 2200 psi, working pressure ranges
from_______to______psi. - correct answer -1, 50
, which is the best flame for welding and cutting? - correct answer -Neutral
Which of the following conditions will cause carburizing or reducing flame? - correct answer -
excess acetylene
If an operator using an OFC process produced an irregular cut surface with pitting and
undercutting, the most likely cause is - correct answer -a dirty cutting tip
which of the following is basic definition of concrete? - correct answer -artificially made rock
what is the term for the weight of all moving and constantly acting loads? - correct answer -live
load
which of the following is not one of the three basic components of concrete? - correct answer -
lime
which of the following is the most accurate range of strengths for concrete? - correct answer -
3000 to 20,000 psi
when reinforcing concrete, what does the steel add to the concrete? - correct answer -tensile
strength
what size wire is used to tie most rebar? - correct answer -16
which of the following is a low foundation wall of sufficient depth to extend below the frost
line? - correct answer -grade beam
PRACTICE QUESTIONS FOR MIDTERM & FINAL
EXAMS
the kindling temperature of steel is - correct answer -1600 degrees
one advantage of the OFC process is that it is - correct answer -portable
the materials that can be cut with OFC are limited primarily to _______materials - correct
answer -ferrous
A welder opens the cylinder valve slightly and closes it immediately. what process did he/she
perform? - correct answer -cracking the cylinder
A device that prevents the reverse flow of gasses that would result in a combustible mixture in
the welding hose is a - correct answer -check valve
A condition in which the flame burns inside the tip, torch or hose is known as a - correct answer
-flashback
acetylene cylinder valves should be opened only approximately one to one-and-a-half turns to -
correct answer -provide quick closure in case of an emergency
most oxygen and fuel gas regulators have gauges that measure actual pressure in the cylinder
and - correct answer -pressure at the torch
while oxygen cylinder pressure may be as high as 2200 psi, working pressure ranges
from_______to______psi. - correct answer -1, 50
, which is the best flame for welding and cutting? - correct answer -Neutral
Which of the following conditions will cause carburizing or reducing flame? - correct answer -
excess acetylene
If an operator using an OFC process produced an irregular cut surface with pitting and
undercutting, the most likely cause is - correct answer -a dirty cutting tip
which of the following is basic definition of concrete? - correct answer -artificially made rock
what is the term for the weight of all moving and constantly acting loads? - correct answer -live
load
which of the following is not one of the three basic components of concrete? - correct answer -
lime
which of the following is the most accurate range of strengths for concrete? - correct answer -
3000 to 20,000 psi
when reinforcing concrete, what does the steel add to the concrete? - correct answer -tensile
strength
what size wire is used to tie most rebar? - correct answer -16
which of the following is a low foundation wall of sufficient depth to extend below the frost
line? - correct answer -grade beam
