Iron Worker Set Exam Tested
Questions & Reviewed Correct
Detailed Answers
New Update!!
1. The kindling temperature of steel is - ANSWER 1600 degrees
2. One advantage of the OFC process is that it is - ANSWER portable
3. The materials that can be cut with OFC are limited primarily to
_______materials - ANSWER ferrous
4. A welder opens the cylinder valve slightly and closes it immediately. what
process did he/she perform? - ANSWER cracking the cylinder
5. A device that prevents the reverse flow of gasses that would result in a
combustible mixture in the welding hose is a - ANSWER check valve
6. A condition in which the flame burns inside the tip, torch or hose is known
as a - ANSWER flashback
7. Acetylene cylinder valves should be opened only approximately one to one-
and-a-half turns to - ANSWER provide quick closure in case of an
emergency
, 8. Most oxygen and fuel gas regulators have gauges that measure actual
pressure in the cylinder and - ANSWER pressure at the torch
9. While oxygen cylinder pressure may be as high as 2200 psi, working
pressure ranges from_______to______psi. - ANSWER 1, 50
10. Which is the best flame for welding and cutting? - ANSWER Neutral
11. Which of the following conditions will cause carburizing or reducing flame?
- ANSWER excess acetylene
12. 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
13. Which of the following is basic definition of concrete? - ANSWER
artificially made rock
14. What is the term for the weight of all moving and constantly acting loads? -
ANSWER live load
15. Which of the following is not one of the three basic components of
concrete? - ANSWER lime
Questions & Reviewed Correct
Detailed Answers
New Update!!
1. The kindling temperature of steel is - ANSWER 1600 degrees
2. One advantage of the OFC process is that it is - ANSWER portable
3. The materials that can be cut with OFC are limited primarily to
_______materials - ANSWER ferrous
4. A welder opens the cylinder valve slightly and closes it immediately. what
process did he/she perform? - ANSWER cracking the cylinder
5. A device that prevents the reverse flow of gasses that would result in a
combustible mixture in the welding hose is a - ANSWER check valve
6. A condition in which the flame burns inside the tip, torch or hose is known
as a - ANSWER flashback
7. Acetylene cylinder valves should be opened only approximately one to one-
and-a-half turns to - ANSWER provide quick closure in case of an
emergency
, 8. Most oxygen and fuel gas regulators have gauges that measure actual
pressure in the cylinder and - ANSWER pressure at the torch
9. While oxygen cylinder pressure may be as high as 2200 psi, working
pressure ranges from_______to______psi. - ANSWER 1, 50
10. Which is the best flame for welding and cutting? - ANSWER Neutral
11. Which of the following conditions will cause carburizing or reducing flame?
- ANSWER excess acetylene
12. 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
13. Which of the following is basic definition of concrete? - ANSWER
artificially made rock
14. What is the term for the weight of all moving and constantly acting loads? -
ANSWER live load
15. Which of the following is not one of the three basic components of
concrete? - ANSWER lime
