CETP Review | 2024 Questions & Answers | 100% Correct | Verified

What type of appliances are constructed so that all air for combustion is derived directly from the outdoors through one duct or pipe, and all flue gases are discharged to the outdoors through another duct or pipe? - Direct Vent Name plates are required when installing a _____ appliance. - Listed Name two factors you must consider when selecting an appliance for a given application - Venting & combustion air What method for calculating needed combustion air is used when the air infiltration is unknown? - Standard calculation method When determining the air infiltration rate using KAIR method, the following must be determined: a) Calculate ACH For building b) Size combustion air openings c) Determine building parameters d) all of the above - D - all of the above Which method is used when supplying additional air to a structure by creating two permanent openings in a single room, one on top an done on bottom, each 12" from the ceiling or floor? - Two-openings method The three sources for supplying additional air to a structure that is found to have an inadequate air supply are indoor air, outdoor air and _______ - Combination indoor and outdoor air The three types of venting systems are natural draft venting, direct venting and ________ draft venting - MechanicalIn a sealed combustion direct vent appliance: a) combustion air is separate from where the appliance is located b) combustion air is obtained from and discharged to the outdoors c) venting is not required d) both a and b - D - both a & b A typical natural draft venting system has several components, some of which include: a) draft hood b) exhaust fan c) electrical interlock d) all of the above - a - draft hood this common type of vent material used in a natural draft venting system is made of double-wall construction, forms a continuous flue passageway from a gas appliance to a vent termination and heats up quickly - Type B-vent A single-wall venting cannot be used under which of the following circumstances: a) outdoors in regions where the 99% winter design temperature is below 32F b) In an attic c) In a wall or floor c) all of the above - d-all of the above A vent connector must be routed to a vent using the ______ possible route. - Shortest When sizing multiple Category I appliances to an existing venting