NEW RC EXAM 2 2025 QUESTIONS
WITH ANSWERS
What is the standard working pressure - CORRECT ANSWER>>>>50 psi
Small air compressors are - CORRECT ANSWER>>>>low flow
large air compressors are - CORRECT ANSWER>>>>High flow
What are small air compressors - CORRECT ANSWER>>>>O2 delivery equipment, small
nebulizers
Where are medical gases stored - CORRECT ANSWER>>>>Portable cylinders and bulk
reservoirs
Portable cylinders and bulk reservoirs - CORRECT ANSWER>>>>storage for medical gases
What type of pressure are gas cylinders - CORRECT ANSWER>>>>High pressure
3A - CORRECT ANSWER>>>>carbon steel
3AA - CORRECT ANSWER>>>>tempered steel alloy
3AA tempered steel alloy - CORRECT ANSWER>>>>is the strongest
How often are safety tests done - CORRECT ANSWER>>>>5-10 years
What process do the safety tests undergo - CORRECT ANSWER>>>>Hydrostatic Process
After the safety test, what happens - CORRECT ANSWER>>>>the cylinders are internally
inspected and cleaned
Green - CORRECT ANSWER>>>>US- Oxygen
White - CORRECT ANSWER>>>>Canada- Oxygen
Gray - CORRECT ANSWER>>>>CO2
Blue - CORRECT ANSWER>>>>nitrous oxide (N20)
Brown - CORRECT ANSWER>>>>Helium
Yellow - CORRECT ANSWER>>>>US- Air
Black and White - CORRECT ANSWER>>>>Canada- Air
, Frangible disk - CORRECT ANSWER>>>>rupture/release
Fusible disk - CORRECT ANSWER>>>>rupture/release
Spring Loaded - CORRECT ANSWER>>>>release & close the pop-off valve after pressure
released
How do you weigh gas - CORRECT ANSWER>>>>get the current pressure, compare it to the
full pressure.
How do you weigh liquid - CORRECT ANSWER>>>>pick up the cylinder to measure
Duration of gas flow (min) = - CORRECT ANSWER>>>>(cylinder pressure X cylinder factor) /
flow (l/min)
High flow will __________ cylinder duration - CORRECT ANSWER>>>>decrease
Low flow will __________ cylinder duration - CORRECT ANSWER>>>>increase
E= - CORRECT ANSWER>>>>0.28 L/psig
H= - CORRECT ANSWER>>>>3.14 L/psig
E is mostly used in - CORRECT ANSWER>>>>the home health care side
H is mostly used in - CORRECT ANSWER>>>>the in house hospital
What is ALWAYS the change out pressure - CORRECT ANSWER>>>>500psig
1 cu.ft. liquid O2= - CORRECT ANSWER>>>>860 cu.ft. of O2 gas
1 ft^3 liquid O2= - CORRECT ANSWER>>>>1 liter of O2 and weighs 2.5 lbs
The gas cylinder safety - CORRECT ANSWER>>>>Cylinder Storage
Cylinder transport
Cylinder use
Liquid bulk O2 - CORRECT ANSWER>>>>20,000 cu.ft., the most common type
Bulk O2 is... - CORRECT ANSWER>>>>less expensive, less hazards
Operates at low pressures
What are the gas supply systems - CORRECT ANSWER>>>>Alternating Supply
Cylinder Supply System w/ reserve
Liquid Bulk O2 system w/ reserve
WITH ANSWERS
What is the standard working pressure - CORRECT ANSWER>>>>50 psi
Small air compressors are - CORRECT ANSWER>>>>low flow
large air compressors are - CORRECT ANSWER>>>>High flow
What are small air compressors - CORRECT ANSWER>>>>O2 delivery equipment, small
nebulizers
Where are medical gases stored - CORRECT ANSWER>>>>Portable cylinders and bulk
reservoirs
Portable cylinders and bulk reservoirs - CORRECT ANSWER>>>>storage for medical gases
What type of pressure are gas cylinders - CORRECT ANSWER>>>>High pressure
3A - CORRECT ANSWER>>>>carbon steel
3AA - CORRECT ANSWER>>>>tempered steel alloy
3AA tempered steel alloy - CORRECT ANSWER>>>>is the strongest
How often are safety tests done - CORRECT ANSWER>>>>5-10 years
What process do the safety tests undergo - CORRECT ANSWER>>>>Hydrostatic Process
After the safety test, what happens - CORRECT ANSWER>>>>the cylinders are internally
inspected and cleaned
Green - CORRECT ANSWER>>>>US- Oxygen
White - CORRECT ANSWER>>>>Canada- Oxygen
Gray - CORRECT ANSWER>>>>CO2
Blue - CORRECT ANSWER>>>>nitrous oxide (N20)
Brown - CORRECT ANSWER>>>>Helium
Yellow - CORRECT ANSWER>>>>US- Air
Black and White - CORRECT ANSWER>>>>Canada- Air
, Frangible disk - CORRECT ANSWER>>>>rupture/release
Fusible disk - CORRECT ANSWER>>>>rupture/release
Spring Loaded - CORRECT ANSWER>>>>release & close the pop-off valve after pressure
released
How do you weigh gas - CORRECT ANSWER>>>>get the current pressure, compare it to the
full pressure.
How do you weigh liquid - CORRECT ANSWER>>>>pick up the cylinder to measure
Duration of gas flow (min) = - CORRECT ANSWER>>>>(cylinder pressure X cylinder factor) /
flow (l/min)
High flow will __________ cylinder duration - CORRECT ANSWER>>>>decrease
Low flow will __________ cylinder duration - CORRECT ANSWER>>>>increase
E= - CORRECT ANSWER>>>>0.28 L/psig
H= - CORRECT ANSWER>>>>3.14 L/psig
E is mostly used in - CORRECT ANSWER>>>>the home health care side
H is mostly used in - CORRECT ANSWER>>>>the in house hospital
What is ALWAYS the change out pressure - CORRECT ANSWER>>>>500psig
1 cu.ft. liquid O2= - CORRECT ANSWER>>>>860 cu.ft. of O2 gas
1 ft^3 liquid O2= - CORRECT ANSWER>>>>1 liter of O2 and weighs 2.5 lbs
The gas cylinder safety - CORRECT ANSWER>>>>Cylinder Storage
Cylinder transport
Cylinder use
Liquid bulk O2 - CORRECT ANSWER>>>>20,000 cu.ft., the most common type
Bulk O2 is... - CORRECT ANSWER>>>>less expensive, less hazards
Operates at low pressures
What are the gas supply systems - CORRECT ANSWER>>>>Alternating Supply
Cylinder Supply System w/ reserve
Liquid Bulk O2 system w/ reserve
