NCCER CORE MODULE 2 BASIC
SAFETY (WHOLE MODULE) EXAM
QUESTIONS WITH COMPLETE
SOLUTIONS
Ground - Answer-The conducting connection between electrical equipment or an
electrical circuit and the earth
3 wire system - Answer-One of the most common safety grounding systems used to
protect you from incidental electrical shock
double insolated tools - Answer-A more common feature used on corded tools to
prevent electrical shock and also can only be connected to a polarized receptical
arc welding - Answer-The joining of metal parts by fusion, in which the necessary heat
is produced by means of an electric arc.
Tinted goggles - Answer-What type of eye protection must be used by welders
2 feet - Answer-If a noise level is so great that you have to raise your voice to be heard,
how far should a person be away from you to use hearing protection
High-efficiency particulate arrestance (HEPA) filters - Answer-Special filters designed to
capture very small particles.
Half mask or mouthpiece - Answer-What mask should you use if you are in areas you
might inhale dust or other solid particles
Immediately - Answer-If you come in contact with someone's blood how long should you
wait before washing, make sure to notify your supervisor right away
Heat stroke - Answer-Life threatening hazard caused by heat
Cold stress - Answer-What results when your body temperatures drops a few degrees
below normal and you begin to shiver uncontrollably and become weak
Welding curtain - Answer-A protective screen set up around a welding operation
designed to safeguard workers not directly involved in that operation.
Flash burn - Answer-The damage that can be done to eyes after even brief exposure to
ultraviolet light from arc welding. A flash burn requires medical attention.
, heat, oxygen, fuel - Answer-Fire has been described as having three components
Permit-required confined space - Answer-A confined space that has been evaluated
and found to have actual or potential hazards, such as a toxic atmosphere or other
serious safety or health hazard. Workers need written authorization to enter a permit-
required confined space.
Lockout/tagout (LOTO) - Answer-A formal procedure for taking equipment out of service
and ensuring that it cannot be operated until an authorized person has removed the lock
and/or warning tag.
Ground Fault Circuit Interrupter (GFCI) - Answer-A device that interrupts and de-
energizes an electrical circuit to protect a person from electrocution.
Proximity work - Answer-Work done near a hazard but not actually in contact with it.
arc welding - Answer-The joining of metal parts by fusion, in which the necessary heat
is produced by means of an electric arc.
Silicosis - Answer-A serious lung disease resulting from the inhalation of crystalline
silica particles.
chronic obstructive pulmonary disease (COPD) - Answer-Lung disease that results in
the obstruction of lung airflow and interferes with normal breathing.
Clean rooms - Answer-A room or area that is used for scientific research or specialized
processes, such as the manufacture of pharmaceuticals and semiconductors.
Wind sock - Answer-A cloth cone open at both ends mounted in a high place to show
which direction the wind is blowing
Welding curtains - Answer-protective screens set up around a welding operation
designed to safeguard workers not directly involved in that operation
Brazing - Answer-A process using heat in excess of 800 degrees F to melt a filler metal
that is drawn into a connection. Commonly used to join a copper pipe.
Flash point - Answer-The temperature at which a fuel gives off enough vapor to burn
Qualified person - Answer-A person who, by possession of a recognized degree,
certificate, or professional standing, or by extensive knowledge, training, and
experience, has demonstrated the ability to solve or prevent problems relating to a
certain subject, work, or project.
SAFETY (WHOLE MODULE) EXAM
QUESTIONS WITH COMPLETE
SOLUTIONS
Ground - Answer-The conducting connection between electrical equipment or an
electrical circuit and the earth
3 wire system - Answer-One of the most common safety grounding systems used to
protect you from incidental electrical shock
double insolated tools - Answer-A more common feature used on corded tools to
prevent electrical shock and also can only be connected to a polarized receptical
arc welding - Answer-The joining of metal parts by fusion, in which the necessary heat
is produced by means of an electric arc.
Tinted goggles - Answer-What type of eye protection must be used by welders
2 feet - Answer-If a noise level is so great that you have to raise your voice to be heard,
how far should a person be away from you to use hearing protection
High-efficiency particulate arrestance (HEPA) filters - Answer-Special filters designed to
capture very small particles.
Half mask or mouthpiece - Answer-What mask should you use if you are in areas you
might inhale dust or other solid particles
Immediately - Answer-If you come in contact with someone's blood how long should you
wait before washing, make sure to notify your supervisor right away
Heat stroke - Answer-Life threatening hazard caused by heat
Cold stress - Answer-What results when your body temperatures drops a few degrees
below normal and you begin to shiver uncontrollably and become weak
Welding curtain - Answer-A protective screen set up around a welding operation
designed to safeguard workers not directly involved in that operation.
Flash burn - Answer-The damage that can be done to eyes after even brief exposure to
ultraviolet light from arc welding. A flash burn requires medical attention.
, heat, oxygen, fuel - Answer-Fire has been described as having three components
Permit-required confined space - Answer-A confined space that has been evaluated
and found to have actual or potential hazards, such as a toxic atmosphere or other
serious safety or health hazard. Workers need written authorization to enter a permit-
required confined space.
Lockout/tagout (LOTO) - Answer-A formal procedure for taking equipment out of service
and ensuring that it cannot be operated until an authorized person has removed the lock
and/or warning tag.
Ground Fault Circuit Interrupter (GFCI) - Answer-A device that interrupts and de-
energizes an electrical circuit to protect a person from electrocution.
Proximity work - Answer-Work done near a hazard but not actually in contact with it.
arc welding - Answer-The joining of metal parts by fusion, in which the necessary heat
is produced by means of an electric arc.
Silicosis - Answer-A serious lung disease resulting from the inhalation of crystalline
silica particles.
chronic obstructive pulmonary disease (COPD) - Answer-Lung disease that results in
the obstruction of lung airflow and interferes with normal breathing.
Clean rooms - Answer-A room or area that is used for scientific research or specialized
processes, such as the manufacture of pharmaceuticals and semiconductors.
Wind sock - Answer-A cloth cone open at both ends mounted in a high place to show
which direction the wind is blowing
Welding curtains - Answer-protective screens set up around a welding operation
designed to safeguard workers not directly involved in that operation
Brazing - Answer-A process using heat in excess of 800 degrees F to melt a filler metal
that is drawn into a connection. Commonly used to join a copper pipe.
Flash point - Answer-The temperature at which a fuel gives off enough vapor to burn
Qualified person - Answer-A person who, by possession of a recognized degree,
certificate, or professional standing, or by extensive knowledge, training, and
experience, has demonstrated the ability to solve or prevent problems relating to a
certain subject, work, or project.
