Atmosphere can contain flammable or toxic gases, or be depleted of or
enriched in oxygen. When a condition of IDLH (immediately dangerous of
life and health) exists, what must be used? – Ventilation
OSHA requires that (blank) or other suitable means be used to prevent
surface water from entering an excavation. - Diversion ditches
A permit is (blank) when an emergency develops and/or an evacuation of
the space is necessitated. - Cancelled
OSHA requires adequate means of egress within (blank) feet of lateral
travel when employees are required to be in trench excavations four feet
deep or deeper. - 25
The three main atmospheric hazards that cause concern are oxygen
depletion, flammability, and (blank). - Toxicity
Employers must have a permit program in place if a permit-required
confined space is on-site. Before authorizing entry, the employer must do
what? -
The chief hazard associated with excavations is: - Cave-ins
enriched in oxygen. When a condition of IDLH (immediately dangerous of
life and health) exists, what must be used? – Ventilation
OSHA requires that (blank) or other suitable means be used to prevent
surface water from entering an excavation. - Diversion ditches
A permit is (blank) when an emergency develops and/or an evacuation of
the space is necessitated. - Cancelled
OSHA requires adequate means of egress within (blank) feet of lateral
travel when employees are required to be in trench excavations four feet
deep or deeper. - 25
The three main atmospheric hazards that cause concern are oxygen
depletion, flammability, and (blank). - Toxicity
Employers must have a permit program in place if a permit-required
confined space is on-site. Before authorizing entry, the employer must do
what? -
The chief hazard associated with excavations is: - Cave-ins
