RVTI Level 2 Certification Exam 2026/2027 | 300 Practice Questions,
Correct Answers & Detailed Rationales
PROPANE SYSTEMS — QUESTIONS 1–45
1. An RV propane appliance fails to operate, and electrical power to
the appliance has already been verified. What should be checked
next?
A. Roof sealant
B. Propane supply and appliance shutoff arrangement
C. Fresh-water tank level
D. Tire pressure
Correct Answer: B
Rationale: Once electrical requirements are confirmed, the
technician should verify that propane is available and that the
appliance's fuel supply and shutoff arrangement are correct.
Replacing appliance components before checking basic inputs can
lead to unnecessary repairs.
2. During Level 2 troubleshooting, an LP appliance produces an
unstable flame. Which factor should be investigated first?
A. Propane supply and combustion conditions
B. Cabinet color
C. Awning length
D. Holding-tank capacity
Correct Answer: A
Rationale: Flame quality depends on proper fuel delivery and
combustion conditions. The technician should investigate supply,
burner condition, airflow, and other manufacturer-specified
combustion requirements before replacing components.
3. An RV technician detects the odor associated with propane near
an appliance. What is the most appropriate response?
,A. Continue operating the appliance
B. Use an open flame to locate the leak
C. Follow the approved gas-safety and leak-investigation procedure
D. Increase system pressure
Correct Answer: C
Rationale: Suspected propane leakage requires immediate attention
to safety. An approved leak-detection procedure should be followed;
open flames and deliberate pressure increases can create serious
hazards.
4. What is the primary purpose of an LP-gas regulator?
A. Store propane
B. Reduce and control gas pressure for the RV system
C. Generate electrical power
D. Filter fresh water
Correct Answer: B
Rationale: The regulator controls the pressure supplied to the RV's
propane system. Proper regulation is essential for safe and reliable
operation of propane appliances.
5. A regulator's vent is obstructed. Why can this condition be
significant?
A. It can interfere with proper regulator operation
B. It increases tire pressure
C. It improves combustion automatically
D. It increases fresh-water pressure
Correct Answer: A
Rationale: The regulator vent must be able to function as designed.
Obstruction can interfere with pressure regulation and may create
unsafe operating conditions.
,6. A propane hose shows cracking and deterioration. What should
the technician do?
A. Paint over the cracks
B. Continue using it until it leaks
C. Follow the approved replacement/service procedure
D. Wrap it with electrical tape
Correct Answer: C
Rationale: Deteriorated propane components should not be
improvised or temporarily patched. Replacement should follow the
applicable manufacturer and service requirements.
7. A propane appliance has adequate fuel pressure but will not
remain lit. Which part of the operating sequence should be
investigated?
A. Flame-proving and safety-control functions
B. Exterior lighting
C. Water-tank drain
D. Wheel alignment
Correct Answer: A
Rationale: An appliance that ignites but does not remain operating
may have a flame-proving or safety-control issue. The complete
ignition sequence should be evaluated before replacing components.
8. Why is combustion air important to a propane appliance?
A. It supports proper combustion
B. It fills the fresh-water tank
C. It charges the house battery
D. It lubricates the chassis
Correct Answer: A
Rationale: Propane combustion requires an appropriate supply of
air. Restricted combustion air can result in poor operation and
potentially hazardous combustion products.
, 9. An RV furnace has repeated ignition failures. Which diagnostic
sequence is most appropriate?
A. Check fuel, electrical supply, ignition sequence, airflow, and safety
controls
B. Replace the entire furnace immediately
C. Drain the gray tank
D. Replace the roof membrane
Correct Answer: A
Rationale: Level 2 troubleshooting should be systematic. Checking
the required operating conditions can identify the failed stage
without unnecessarily replacing the complete furnace.
10. A yellow or abnormal burner flame should generally cause the
technician to investigate:
A. Combustion and burner conditions
B. Tire tread
C. Cabinet hinges
D. Awning fabric
Correct Answer: A
Rationale: Flame appearance can provide information about
combustion. An abnormal flame should be investigated using the
manufacturer's service procedure rather than ignored.
11. What is an important diagnostic consideration when a propane
appliance operates normally at one time but poorly at another?
A. Intermittent fuel supply or operating conditions
B. Exterior paint thickness
C. Window tint
D. Cabinet color
Correct Answer: A
Correct Answers & Detailed Rationales
PROPANE SYSTEMS — QUESTIONS 1–45
1. An RV propane appliance fails to operate, and electrical power to
the appliance has already been verified. What should be checked
next?
A. Roof sealant
B. Propane supply and appliance shutoff arrangement
C. Fresh-water tank level
D. Tire pressure
Correct Answer: B
Rationale: Once electrical requirements are confirmed, the
technician should verify that propane is available and that the
appliance's fuel supply and shutoff arrangement are correct.
Replacing appliance components before checking basic inputs can
lead to unnecessary repairs.
2. During Level 2 troubleshooting, an LP appliance produces an
unstable flame. Which factor should be investigated first?
A. Propane supply and combustion conditions
B. Cabinet color
C. Awning length
D. Holding-tank capacity
Correct Answer: A
Rationale: Flame quality depends on proper fuel delivery and
combustion conditions. The technician should investigate supply,
burner condition, airflow, and other manufacturer-specified
combustion requirements before replacing components.
3. An RV technician detects the odor associated with propane near
an appliance. What is the most appropriate response?
,A. Continue operating the appliance
B. Use an open flame to locate the leak
C. Follow the approved gas-safety and leak-investigation procedure
D. Increase system pressure
Correct Answer: C
Rationale: Suspected propane leakage requires immediate attention
to safety. An approved leak-detection procedure should be followed;
open flames and deliberate pressure increases can create serious
hazards.
4. What is the primary purpose of an LP-gas regulator?
A. Store propane
B. Reduce and control gas pressure for the RV system
C. Generate electrical power
D. Filter fresh water
Correct Answer: B
Rationale: The regulator controls the pressure supplied to the RV's
propane system. Proper regulation is essential for safe and reliable
operation of propane appliances.
5. A regulator's vent is obstructed. Why can this condition be
significant?
A. It can interfere with proper regulator operation
B. It increases tire pressure
C. It improves combustion automatically
D. It increases fresh-water pressure
Correct Answer: A
Rationale: The regulator vent must be able to function as designed.
Obstruction can interfere with pressure regulation and may create
unsafe operating conditions.
,6. A propane hose shows cracking and deterioration. What should
the technician do?
A. Paint over the cracks
B. Continue using it until it leaks
C. Follow the approved replacement/service procedure
D. Wrap it with electrical tape
Correct Answer: C
Rationale: Deteriorated propane components should not be
improvised or temporarily patched. Replacement should follow the
applicable manufacturer and service requirements.
7. A propane appliance has adequate fuel pressure but will not
remain lit. Which part of the operating sequence should be
investigated?
A. Flame-proving and safety-control functions
B. Exterior lighting
C. Water-tank drain
D. Wheel alignment
Correct Answer: A
Rationale: An appliance that ignites but does not remain operating
may have a flame-proving or safety-control issue. The complete
ignition sequence should be evaluated before replacing components.
8. Why is combustion air important to a propane appliance?
A. It supports proper combustion
B. It fills the fresh-water tank
C. It charges the house battery
D. It lubricates the chassis
Correct Answer: A
Rationale: Propane combustion requires an appropriate supply of
air. Restricted combustion air can result in poor operation and
potentially hazardous combustion products.
, 9. An RV furnace has repeated ignition failures. Which diagnostic
sequence is most appropriate?
A. Check fuel, electrical supply, ignition sequence, airflow, and safety
controls
B. Replace the entire furnace immediately
C. Drain the gray tank
D. Replace the roof membrane
Correct Answer: A
Rationale: Level 2 troubleshooting should be systematic. Checking
the required operating conditions can identify the failed stage
without unnecessarily replacing the complete furnace.
10. A yellow or abnormal burner flame should generally cause the
technician to investigate:
A. Combustion and burner conditions
B. Tire tread
C. Cabinet hinges
D. Awning fabric
Correct Answer: A
Rationale: Flame appearance can provide information about
combustion. An abnormal flame should be investigated using the
manufacturer's service procedure rather than ignored.
11. What is an important diagnostic consideration when a propane
appliance operates normally at one time but poorly at another?
A. Intermittent fuel supply or operating conditions
B. Exterior paint thickness
C. Window tint
D. Cabinet color
Correct Answer: A
