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CETP 4.5 Basic Propane Appliance Service and Troubleshooting fully solved $15.99   Add to cart

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CETP 4.5 Basic Propane Appliance Service and Troubleshooting fully solved

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CETP 4.5 Basic Propane Appliance Service and Troubleshooting fully solved

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  • October 20, 2024
  • 13
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
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BravelRadon
CETP 4.5 Basic Propane Appliance
Service and Troubleshooting fully
solved

This whole module provides a "big picture" overview of the course, which includes info on
service/troubleshooting for ____________________ . - correct answer ✔✔Basic propane appliances
(standing pilots)



When necessary, use proper __________________ to make sure no one else turns on the power to the
circuit until you have completed the repair. - correct answer ✔✔Lockout/tagout procedure



If the appliance cannot be immediately fixed or the customer chooses to have someone else repair the
appliance, then determine whether you are obligated to remove appliance from service and use a
_____________ . - correct answer ✔✔Warning tag



The four types of appliance service calls are: - correct answer ✔✔- troubleshoot/repair appliance

- start up/shut down propane appliances

- preventive maintenance

- emergency response calls



____________ are designed for general purpose measurement of air, surface, and gases. Extremely fast
response time because of a small exposed tip. - correct answer ✔✔Bead Probes



good examples of using a bead probe is measuring ambient air, and measuring the insides of _______ . -
correct answer ✔✔Ovens



What would indicate a defective limit switch? - correct answer ✔✔Measured temperature is below the
temperature specified on the limit switch, which would indicate it is defective.

, When calibrating a thermometer, how do you perform an ice water test? - correct answer ✔✔Fill a glass
with crushed ice and then add water almost to the top. Insert the thermometer tip/probe and hold for
30 seconds.



the typical gas line delivery pressure is ____________ and the typical appliance manifold pressure is
___________ . - correct answer ✔✔11 " W.C., 10 " W.C.



Negative pressure is also called ________ . - correct answer ✔✔Vacuum



Use a ____________ to calibrate other pressure measuring devices such as an electronic manometer,
magnohelic gauge, or dial gauge. - correct answer ✔✔Water manometer



Combustible gas detectors (CGD) are instruments typically calibrated for __ specific gas, such as
_______. - correct answer ✔✔1, propane



A Combustible Gas Indicator (CGI) can also signal an alarm when the level of gas concentration in the air
reaches/exceeds preset points marking the flammability range. These presets points are called ____ or
____ for ____________ or ____________. - correct answer ✔✔LEL, LFL, Lower Explosive Limit, Lower
Flammability Limit



Flammability range for propane: - correct answer ✔✔2.15% to 9.6% of air



_________ are two pieces of metal known to expand at different rates when heated. ________ sense
temperature change and either open or close a switch. - correct answer ✔✔Bimetals



________ can be formed into a number of shapes; straight, U-shaped, disc shaped, and coiled. - correct
answer ✔✔Bimetals



A ________ used as a safety switch generally is normally closed (NC) and opens on a temperature rise. -
correct answer ✔✔bimetal



A bimetal sensor rated L140-40F is operating correctly if the switch opens at 120 degrees, T/F? - correct
answer ✔✔False

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