CETP Review Exam 2023 Questions and Answers with complete solution

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? - CORRECT ANS Direct Vent Name plates are required when installing a _____ appliance. - CORRECT ANS Listed Name two factors you must consider when selecting an appliance for a given application - CORRECT ANS Venting & combustion air What method for calculating needed combustion air is used when the air infiltration is unknown? - CORRECT ANS 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 - CORRECT ANS 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? - CORRECT ANS 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 _______ - CORRECT ANS Combination indoor and outdoor air The three types of venting systems are natural draft venting, direct venting and ________ draft venting - CORRECT ANS Mechanical In 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 - CORRECT ANS 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