RVTI Level One – Questions With Clear Solutions
Propane system functions at ___ in Wc Accurate Answer:- 11
The maximum lock up pressure for propane regulator is ___ in Wc
Accurate Answer:- 14
The 1st stage regulator reduces propane container pressure to about ___ psi
Accurate Answer:- 10
The second stage regulator reduces propane pressure of 10 psi to ___ in Wc
Accurate Answer:- 11
Appliance regulators are set to: Accurate Answer:- 10-10.5 in Wc
Propane cylinder considered full at? Accurate Answer:- 80%
Why only fill propane containers to 80% Accurate Answer:- To leave
room for expansion and vaporization
Propane boils at ? Accurate Answer:- 44 degrees F
DOT cylinders Accurate Answer:- Expire after 10 years
Can be removed
ASME tanks Accurate Answer:- Do not expire
Permanently mounted to chassis
The 4 appurtenances of ASME tank Accurate Answer:- 1. Vapor
withdrawal tube
2. OPD(overfill protection device)
3. Sight gauge
4. Safety Relief valve
These deliver propane to appliances: Accurate Answer:- Flexible hoses,
iron piping and copper tubing
Rvs must use sealed combustion or direct vent appliances with the exception
of? Accurate Answer:- Ovens and stoves with proper labels
,Pig-tails or high pressure connectors: Accurate Answer:- Gas lines
installed between propane cylinder(s) and the regulator
Low pressure connectors: Accurate Answer:- Flex hoses used for S/O
rooms or movable appliances
Quick connect device: Accurate Answer:- A hand operated device used
to disconnect or connect an appliance to gas supply
I'm cold weather keep propane filled to at least ___ % Accurate Answer:-
50
This test is used to determine what pressure the system regulator is
delivering at least 50% of appliance load is functioning Accurate Answer:-
Operating pressure test
This test is used to locate a leak in the propane system Accurate Answer:-
Bubble solution test
During operating pressure test manometer should read about __ in Wc
Accurate Answer:- 11
This test is used to verify pressure at which the regulator locks up when no
propane is flowing Accurate Answer:- Lock up pressure test
During lock up pressure test reading must never exceed ___ in Wc
Accurate Answer:- 14
This test is used to determine if the propane system is leak free by dropping
internal pressure to 8 in Wc for 3 minutes Accurate Answer:- Timed
pressure drop test
During a Pdi on the propane system technician should set delivery line
pressure, verify regulator lock up pressure, preform a ________ _________ _________,
check connections using a bubble solution Accurate Answer:- Times
pressure drop test
, Rv water distribution system needs what 2 things to function? Accurate
Answer:- A source or potable water and a means to provide pressure
4 Methods of obtaining pressure for water system Accurate Answer:- 1.
City water pressure
2. Demand pump
3. Manual pump system
4. Air pressurized
The water __________ system consists of piping, freshwater, storage tank, water
heater, water pump and faucets Accurate Answer:- Distribution
What is the purpose of the bypass valve on a water heater Accurate
Answer:- Used during winterization to keep antifreeze out of water heater
Accumulator: Accurate Answer:- Installed downstream of pump to
assist with consistent water pressure
Water regulator Accurate Answer:- Reduces water pressure (as high as
150psi) down to about 40-50psi
Water filters Accurate Answer:- Filter out impurities
The the water distribution system the High pressure check valve is located in
2 places and does? Accurate Answer:- Located at the pump outlet to
protect from city water pressure and the water heater inlet to prevent back
flow of water.
These gauges are used to test water systems for leaks Accurate Answer:-
Pressure gauge
In-line strainer: (water system) Accurate Answer:- Located between
tank and pump to catch dirt and debris
This test is used to test for leaks in the water distribution system
Accurate Answer:- Pressure test
Propane system functions at ___ in Wc Accurate Answer:- 11
The maximum lock up pressure for propane regulator is ___ in Wc
Accurate Answer:- 14
The 1st stage regulator reduces propane container pressure to about ___ psi
Accurate Answer:- 10
The second stage regulator reduces propane pressure of 10 psi to ___ in Wc
Accurate Answer:- 11
Appliance regulators are set to: Accurate Answer:- 10-10.5 in Wc
Propane cylinder considered full at? Accurate Answer:- 80%
Why only fill propane containers to 80% Accurate Answer:- To leave
room for expansion and vaporization
Propane boils at ? Accurate Answer:- 44 degrees F
DOT cylinders Accurate Answer:- Expire after 10 years
Can be removed
ASME tanks Accurate Answer:- Do not expire
Permanently mounted to chassis
The 4 appurtenances of ASME tank Accurate Answer:- 1. Vapor
withdrawal tube
2. OPD(overfill protection device)
3. Sight gauge
4. Safety Relief valve
These deliver propane to appliances: Accurate Answer:- Flexible hoses,
iron piping and copper tubing
Rvs must use sealed combustion or direct vent appliances with the exception
of? Accurate Answer:- Ovens and stoves with proper labels
,Pig-tails or high pressure connectors: Accurate Answer:- Gas lines
installed between propane cylinder(s) and the regulator
Low pressure connectors: Accurate Answer:- Flex hoses used for S/O
rooms or movable appliances
Quick connect device: Accurate Answer:- A hand operated device used
to disconnect or connect an appliance to gas supply
I'm cold weather keep propane filled to at least ___ % Accurate Answer:-
50
This test is used to determine what pressure the system regulator is
delivering at least 50% of appliance load is functioning Accurate Answer:-
Operating pressure test
This test is used to locate a leak in the propane system Accurate Answer:-
Bubble solution test
During operating pressure test manometer should read about __ in Wc
Accurate Answer:- 11
This test is used to verify pressure at which the regulator locks up when no
propane is flowing Accurate Answer:- Lock up pressure test
During lock up pressure test reading must never exceed ___ in Wc
Accurate Answer:- 14
This test is used to determine if the propane system is leak free by dropping
internal pressure to 8 in Wc for 3 minutes Accurate Answer:- Timed
pressure drop test
During a Pdi on the propane system technician should set delivery line
pressure, verify regulator lock up pressure, preform a ________ _________ _________,
check connections using a bubble solution Accurate Answer:- Times
pressure drop test
, Rv water distribution system needs what 2 things to function? Accurate
Answer:- A source or potable water and a means to provide pressure
4 Methods of obtaining pressure for water system Accurate Answer:- 1.
City water pressure
2. Demand pump
3. Manual pump system
4. Air pressurized
The water __________ system consists of piping, freshwater, storage tank, water
heater, water pump and faucets Accurate Answer:- Distribution
What is the purpose of the bypass valve on a water heater Accurate
Answer:- Used during winterization to keep antifreeze out of water heater
Accumulator: Accurate Answer:- Installed downstream of pump to
assist with consistent water pressure
Water regulator Accurate Answer:- Reduces water pressure (as high as
150psi) down to about 40-50psi
Water filters Accurate Answer:- Filter out impurities
The the water distribution system the High pressure check valve is located in
2 places and does? Accurate Answer:- Located at the pump outlet to
protect from city water pressure and the water heater inlet to prevent back
flow of water.
These gauges are used to test water systems for leaks Accurate Answer:-
Pressure gauge
In-line strainer: (water system) Accurate Answer:- Located between
tank and pump to catch dirt and debris
This test is used to test for leaks in the water distribution system
Accurate Answer:- Pressure test
