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Quiz Result Settings<\/p>\n \n Check this if you want to display JUST the wrong answers<\/label>\n \n <\/div>\n <\/div>1: A check valve is a device<\/h3>designed to allow the flow of refrigerant gas in both directions<\/li>that is always spring loaded<\/li>with a pressure drop<\/li>found on high pressure steam systems<\/li><\/ul>2: The critical temperature of a refrigerant gas occurs when<\/h3>any increase in pressure will not liquefy the gas<\/li>any decrease in pressure will cause condensation <\/li>the gas returns to a liquid<\/li>the gas is no longer saturated<\/li><\/ul>3: Industrial occupancy is<\/h3>a premise or that portion of a premise that is not open to the public, where access by authorized persons is controlled, and that is used to manufacture, process, or store goods, such as chemicals, food, ice, meat, or petroleum.<\/li>is a premise or that portion of a premise where large number of people congregate and from which occupants cannot quickly vacate the space.<\/li>a premise or that portion of a premise where people transact business, receive personal service, or purchase food and other goods.<\/li>Both a and b are correct<\/li><\/ul>4: 1 HP = ____ Watts?\r\n<\/h3>11,239<\/li>3,412<\/li>746<\/li>3.1416<\/li><\/ul>5: What was the main reason for enacting the no venting rule of July 1, 1992?<\/h3>Ozone depletion<\/li>Green house effect<\/li>Global warming potential<\/li>All of the above<\/li><\/ul>6: How far from the window does a relief valve need to be according to ASHRAE-15?<\/h3>There is no minimum for relief valve and windows.<\/li>At least 20'<\/li>At least 40'<\/li>At least 30'<\/li><\/ul>7: A low oil switch is typically<\/h3>manual reset<\/li>non used on semi-hermetic compressors over 10 ton capacity<\/li>time-delay auto reset<\/li>automatic reset<\/li><\/ul>8: What is the voltage of each leg of a 480 Volt three-phase motor?<\/h3>120v<\/li>277v<\/li>240v<\/li>208v<\/li><\/ul>9: A premise where large numbers of people congregate and from which occupants can not quickly vacate the space is considered<\/h3>mixed occupancy<\/li>commercial occupancy<\/li>institutional occupancy<\/li>public assembly occupancy<\/li><\/ul>10: Relief valves are rated in<\/h3>gallons of water per minute<\/li>gallons of water per hour<\/li>pounds of air per hour<\/li>pounds of air per minute<\/li><\/ul>11: How many volts would you read on a 480V system phase to phase?<\/h3>1\/3 the voltage<\/li>480<\/li>277<\/li><\/ul>12: A start capacitor is wired in _____ with the start windings.<\/h3>series-parallel<\/li>junction<\/li>parallel<\/li>series<\/li><\/ul>13: Pressure vessels of 10 cubic feet or more gross volume shall use<\/h3>at least one rupture member<\/li>a dual pressure-relief valve if charging into the atmosphere<\/li>at least three means of discharge and\/or rupture discs<\/li>both a and b are correct<\/li><\/ul>14: "R" represents ___ in the Ohm's law formula<\/h3>voltage<\/li>capacitance<\/li>resistance<\/li>amperage<\/li><\/ul>15: Refrigerant piping crossing an open space that affords passageway in any building shall not be less than _____ feet above the floor unless piping is located against the ceiling.<\/h3>9.00'<\/li>8'4"<\/li>7.25'<\/li>7.00'<\/li><\/ul>16: A class B1 refrigerant is considered<\/h3>non-toxic but highly flammable<\/li>toxic and somewhat flammable<\/li>non-toxic and non-flammable<\/li>toxic but non-flammable<\/li><\/ul>17: The low pressure oil safety switch<\/h3>never trips<\/li>must be reset manually<\/li>resets itself automatically<\/li>resets itself after the time delay has terminated<\/li><\/ul>18: What device should be used on low-temperature freezers?<\/h3>discharge muffler<\/li>hot-gas by-pass<\/li>high capacity TXV<\/li>oil separator<\/li><\/ul>19: What is the refrigerant dichlorodifluoromethane?<\/h3>R-123<\/li>R-134A<\/li>R-22<\/li>R-12<\/li><\/ul>20: The level of voltage caused by back electromagnetic force that opens the contacts of a potential relay in order to take the start capacitor out of the circuit is<\/h3>lift voltage<\/li>pick-up voltage<\/li>run voltage<\/li>boost voltage<\/li><\/ul>21: A compressor in which the increase in vapor pressure is attained without changing the internal volume of the compression chamber is called<\/h3>non-volumetric displacement compressor<\/li>non-positive displacement compressor<\/li>negative displacement compressor<\/li>neutral chamber-type compressor<\/li><\/ul>22: One atmosphere equals<\/h3>14.7<\/li>29.4<\/li>0 psia<\/li>0 psig<\/li><\/ul>23: Instead of using a compressor, an absorption air-conditioning chiller uses which of the following as its driving force?<\/h3>Oil<\/li>Electricity<\/li>Heat<\/li>Air<\/li><\/ul>24: An oil pressure safety switch should be set at<\/h3>10 to 15 psi below low side pressure<\/li>5 to 10 psi above low side pressure<\/li>5 to 10 psi below low side pressure<\/li>10-15 psi above low side pressure<\/li><\/ul>25: Pressure vessel having an inside diameter exceeding 6\u201d with an internal pressure greater than 15psig shall be marked directly on or on the nameplate the letters _______________ signifying compliance with the ASME Boiler & Pressure Vessel Code.<\/h3>\u201cUV\u201d<\/li>\u201cUL\u201d<\/li>\u201cUM\u201d and \u201cUV\u201d<\/li>\u201cU\u201d or \u201cUM\u201d<\/li><\/ul><\/div><\/form><\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-5","page","type-page","status-publish","hentry"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/refrigerationpreptest.com\/index.php?rest_route=\/wp\/v2\/pages\/5","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/refrigerationpreptest.com\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/refrigerationpreptest.com\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/refrigerationpreptest.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/refrigerationpreptest.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5"}],"version-history":[{"count":9,"href":"https:\/\/refrigerationpreptest.com\/index.php?rest_route=\/wp\/v2\/pages\/5\/revisions"}],"predecessor-version":[{"id":109,"href":"https:\/\/refrigerationpreptest.com\/index.php?rest_route=\/wp\/v2\/pages\/5\/revisions\/109"}],"wp:attachment":[{"href":"https:\/\/refrigerationpreptest.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}