NATEl Heatl Pumpsl Examl (Latestl 2026/l 2027l Update)l Prep|l 100%l Verifiedl Questionsl &l Answersl |l Gradel A
Q:l Ifl thel technicianl believesl thatl al hermeticl compressorl hasl al permanentlyl openl internall overloadl protector,l thel technicianl should
Answer:
testl thel compressorl whilel itl isl cool
Q:l Al controll stringl isl definedl asl twol orl morel switchl contactsl connectedl inl al circuit,l orl setl ofl circuits,l tol controll al load.l Inl orderl tol troubleshootl al loadl controlledl byl al controll string,l thel technicianl mustl firstl check
Answer:
forl properl voltagel appliedl acrossl thel load
Q:l Whenl changingl outl anl evaporatorl coill thel installerl mustl bel certainl to
Answer:
plumbl thel cabinetl sol itsl sidesl arel vertical
Q:l Thel recommendedl maximuml externall staticl pressurel usedl forl heatingl andl coolingl equipmentl withl blowersl forl 5l tonl ofl coolingl orl lessl is
Answer:
0.1l inl W.C
Q:l Whenl al balancingl checkl ofl al newlyl installedl ductl systeml thel dampersl shouldl be
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Answer:
openl completelyl inl alll rooms
Q:l Operatingl soundl isl al considerationl inl thel locationl ofl al condensingl unitl because
Answer:
excessivel noisel couldl bel disruptivel tol thel customer
Q:l Al technicianl hasl determinedl al supplyl inl al flexiblel ductl systeml isl leakingl so
Answer:
Alll connectionsl includingl innerl andl outerl layersl shouldl bel checked
Q:l Sensiblel heatl ratiol is
Answer:
sensiblel removedl ÷l totall heatl removed
Q:l Al wetl bulbl readingl thatl isl veryl closel tol thel dryl bulbl readingl froml thel samel instrumentl indicatesl the
Answer:
relativel humidityl isl veryl high
Q:l Thel followingl measurementsl wouldl bel neededl tol properlyl evaluatel al complaintl ofl
"drafty"l operationl withl al heatingl systeml are:
Answer:
systeml TD,l drop,l andl staticl pressure
Q:l Thel kindl ofl energyl thatl thel condenserl removesl froml thel refrigerantl is 2 / 3
Answer:
sensiblel andl latentl heat
Q:l Inl al simplel refrigerantl system,l thel refrigerantl boils
Answer:
inl thel evaporator
Q:l Thel commonl suctionl linel onl al heatl pumpl isl connectedl between
Answer:
thel indoorl coill andl thel compressor
Q:l Therel arel twol generallyl usedl methodsl forl changingl capacityl onl demandl inl al heatl pump.l Onel isl tol usel al _______l andl thel otherl methodl is
Answer:
twol speedl compressor,l usingl al twol stagel thermostat
Q:l Thel threel thingsl thatl happenl whenl al heatl pumpl isl cycledl intol thel defrostl model
are:
Answer:
thel reversingl valvel switchesl tol thel coolingl mode,l thel outdoorl fanl isl shutl offl andl thel auxiliaryl heatl isl energized
Q:l Anl extendedl plenuml ductl systeml isl a
Answer:
singlel trunkl extendingl inl onel orl twol directionsl withl manyl branchl ducts
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