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 plug containing an alloy that will melt at a specific temperature to relief pressure is a<\/h3>fusion plug<\/li>relief plug<\/li>rupture plug<\/li>fusible plug<\/li><\/ul>2: What type of relief valve is used on low pressure centrifugal compressor systems?<\/h3>Spring-loaded relief valve<\/li>Rupture disc<\/li>Purge relief<\/li>None of the above<\/li><\/ul>3: R-123 belongs to Group<\/h3>A-3<\/li>B-2<\/li>B-1<\/li>B-3<\/li><\/ul>4: When a receiver is greater than 3 cubic feet but less than 10 cubic feed, what is the minimum relief device required?<\/h3>fusible plug<\/li>relief valve<\/li>rupture disc<\/li>all of the above<\/li><\/ul>5: 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>7.25'<\/li>9.00'<\/li>7.00'<\/li>8'4"<\/li><\/ul>6: Liquid level gauge glasses shall have automatic closing shut off valves, except Bull's eye or reflex type.<\/h3>True<\/li>False<\/li><\/ul>7: R-22 is classified as a ____ refrigerant on the safety matrix.<\/h3>B-1<\/li>A-1<\/li>A-2<\/li>B-2<\/li><\/ul>8: What refrigerant is an inorganic compound?<\/h3>Ammonia<\/li>R-132A<\/li>R-22<\/li>R-410A<\/li><\/ul>9: Machinery rooms must be vented to ______?<\/h3>basement<\/li>outdoors<\/li>neutralizing tank<\/li>unoccupied spaces<\/li><\/ul>10: Class A refrigerants are considered<\/h3>toxic<\/li>non-flammable<\/li>non-toxic<\/li>flammable<\/li><\/ul>11: Can you use Ammonia in industrial applications?<\/h3>Yes, always<\/li>No, never<\/li>Yes, Under certain condidtions<\/li>When mixed with R-718<\/li><\/ul>12: All serviceable components of a refrigeration system shall be provided with<\/h3>safe access<\/li>name plates with markings referring to pressure and temperature in accordance with ASME Boiler and Pressure Vessel Code<\/li>manufactures instructions on start-up procedures<\/li>service manuals<\/li><\/ul>13: A relief valve shall be located at least ___ above grade.<\/h3>36'<\/li>10'<\/li>25'<\/li>15'<\/li><\/ul>14: Evaporators within 18" of a heating coil must be equipped with a<\/h3>high limit control<\/li>low limit control<\/li>zone valve<\/li>pressure relief device<\/li><\/ul>15: Which refrigerant class listed below is the most flammable?<\/h3>A3<\/li>B2<\/li>C3<\/li>A2<\/li><\/ul>16: What kind of material can't be used on the outlet of a relief valve?<\/h3>Copper<\/li>PVC<\/li>Stainless Steel<\/li>Aluminum<\/li><\/ul>17: According to ASHRAE Standard-15 9.8 Positive Displacement Compressor Protection, the pressure-relief device discharge into<\/h3>the low-pressure side of the system<\/li>the high side of the system<\/li>the liquid receiver<\/li>both a and c are correct<\/li><\/ul>18: The ASHRAE Standard 34 requires what type of alarm for equipment rooms using HCFC-123?<\/h3>phosgene gas sening<\/li>A group sensing<\/li>refrigerant sensing<\/li>CO Sensing<\/li><\/ul>19: Large mercantile occupancy is<\/h3>a premise of that portion of a premise where more than 100 persons congregate on levels above of below street level to purchase personal merchandise.<\/li>a premise or that portion of a premise where more than 200 persons congregate on levels above or below street level to purchase personal merchandise<\/li>a premise or that portion of a premise where more than 1500 persons congregate on levels above or below street level to purchase personal merchandise<\/li>a premise of that portion of a premise where more than 50 persons congregate on levels above of below street level to purchase personal merchandise.<\/li><\/ul>20: A class A3 refrigerant is considered<\/h3>non-toxic but highly flammable<\/li>non-toxic and non-flammable<\/li>toxic and non-flammable<\/li>toxic and somewhat flammable<\/li><\/ul>21: What do you need to do when you install a new system?<\/h3>Document the superheat and subcooling reading<\/li>Insulate the suction line before you take a superheat reading<\/li>Add refrigerant<\/li>Have it inspected <\/li><\/ul>22: A factory-sealed system containing less than 22lbs. of Group A1 refrigerant<\/h3>shall have a pressure limiting device and a pressure relief valve installed<\/li>does not require a pressure-limiting device<\/li>shall be inspected by the Boiler of Inspectors bi-annually<\/li>shall have a pressure limiting device installed on the high side of the system<\/li><\/ul>23: R-12. R-22, and R-40 are considered Group I refrigerants.<\/h3>True<\/li>False<\/li><\/ul>24: copper and its alloys shall not be used in contact with _____ except as a component of bronze alloys for bearing or other non-refrigerant containing uses.<\/h3>ammonia<\/li>HCFC-123<\/li>CFC-11<\/li>Lithium bromide<\/li><\/ul>25: Each machinery room shall contain<\/h3>smoke and fire alarms as well as three means of egress and that egress must meet 528 CMR ventilation requirements<\/li>high and low pressure controls<\/li>a refrigerant detector located in an area where the refrigerant from a leak will concentrate<\/li>a toxicity detector where the presence of ammonia or lithium bromide from a leak will concentrate<\/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-49","page","type-page","status-publish","hentry"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/refrigerationpreptest.com\/index.php?rest_route=\/wp\/v2\/pages\/49","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=49"}],"version-history":[{"count":7,"href":"https:\/\/refrigerationpreptest.com\/index.php?rest_route=\/wp\/v2\/pages\/49\/revisions"}],"predecessor-version":[{"id":108,"href":"https:\/\/refrigerationpreptest.com\/index.php?rest_route=\/wp\/v2\/pages\/49\/revisions\/108"}],"wp:attachment":[{"href":"https:\/\/refrigerationpreptest.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=49"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}