HVAC Star Exam With Correct Questions
And Answers 2024
In ba bchiller, bthe brefrigerant bboils bby b___________. b- bcorrect banswer.absorbing bheat
bfrom bthe bwater bpassing bthrough bit
The bfour bmain bcomponents bof ba brefrigeration bsystem bare b- bcorrect banswer.compressor,
bcondenser, bevaporator, b& bmetering bdevice
The bdifference bbetween ba bcontactor band ba bmotor bstarter bis: b- bcorrect banswer.overload
bprotection
If brefrigerant bcondenses bat ba btemperature bof b105 bdegrees bF band bthe bwater bleaves bthe
bcondenser bat ba btemperature bof b95 bdegrees bF, bthe b___________. b- bcorrect
banswer.connecting btwo bor bmore bcapacitors bin bparallel
A bsingle-phase bmotor bin bwhich bthe bstarting bcapacitor bremains bconnected bwhen bthe
bmotor bruns bis bcalled ba: b- bcorrect banswer.permanent-split bcapacitor bmotor
, When busing ba bthermostatic bexpansion bvalve bwith ba b__________ bcharged belement,
bhunting bcan bbe bconsiderably breduced. b- bcorrect banswer.cross
A bhand bplaced bnear ba bhot bstove bor bfireplace bis bquickly bheated bby: b- bcorrect
banswer.radiation
When ban bobject bis brefrigerated: b- bcorrect banswer.heat bis bremoved bfrom bit.
The brefrigerant bline bthat bconnects bthe bcondenser bto bthe bmetering bdevice bis
b___________ bline. b- bcorrect banswer.liquid
In ba bthree-phase bsystem, bthe bvoltage bimbalance bbetween bany btwo blegs bmay bnot bvary
bby bmore bthan: b- bcorrect banswer.2%
A blamp bsource bhas ba bvoltage bof b110 bvolts band ba bcurrent bof b0.9 bamperes. bWhat bis bthe
bresistance bof bthe blamp? b- bcorrect banswer.122.2ohms
Lithium-Bromide bis bused bin babsorption bsystems bas: b- bcorrect banswer.a bsalt bsolution
an babsorbent b(attractant)
a bsolution bthat bcreates ba bpressure bdifference
(((all bof bthe babove))))
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