Garantie de satisfaction à 100% Disponible immédiatement après paiement En ligne et en PDF Tu n'es attaché à rien
Recherché précédemment par vous
FDNY Z51 TEST EXAM ,Z51 WRITTEN TEST TAURIS AND A STUDY GUIDE EXAM 2024 VERSION 170 QUESTIONS WITH DETAILED VERIFIED ANSWERS AND RATIONALES /A+ GRADE ASSURED the efficiency of the refrigerant cycle is affected by the operation of the condenser. Of the €24,25
Ajouter au panier
FDNY Z51 TEST EXAM ,Z51 WRITTEN TEST TAURIS AND A STUDY GUIDE EXAM 2024 VERSION 170 QUESTIONS WITH DETAILED VERIFIED ANSWERS AND RATIONALES /A+ GRADE ASSURED the efficiency of the refrigerant cycle is affected by the operation of the condenser. Of the
4 vues 0 fois vendu
Cours
FDNY Z51
Établissement
FDNY Z51
FDNY Z51 TEST EXAM ,Z51 WRITTEN TEST TAURIS
AND A STUDY GUIDE EXAM 2024 VERSION 170
QUESTIONS WITH DETAILED VERIFIED ANSWERS
AND RATIONALES /A+ GRADE ASSURED
the efficiency of the refrigerant cycle is affected by the operation of the condenser. Of the following, a
more efficient centrifuga...
FDNY Z51 TEST EXAM ,Z51 WRITTEN TEST TAURIS
AND A STUDY GUIDE EXAM 2024 VERSION 170
QUESTIONS WITH DETAILED VERIFIED ANSWERS
AND RATIONALES /A+ GRADE ASSURED
the efficiency of the refrigerant cycle is affected by the operation of the condenser. Of the following, a
more efficient centrifugal compressor operation results from - CORRECT ANSWER-lowering the
condenser pressure
In most semi hermetic compressors, the suction vapor is used for - CORRECT ANSWER-cools the motor
The amount of refrigerant that flows through the orifices of an economizer is determined by the -
CORRECT ANSWER-difference between the high side and the low side pressure
the instalation of an inline refrigerant cleaning system is advisable - CORRECT ANSWER-to remove
impurities from the system
a refrigerant engineer verifies that a condenser pump is cavitation of the following the most likely cause
for this condition is: - CORRECT ANSWER-a faulty cooling tower water level controller
when an expansion valve is operating properly, at the end of the evaporator will contain - CORRECT
ANSWER-only superheated vapor
a centrifugal water pump is considered to be fully primed when - CORRECT ANSWER-the pump is full of
liquid
A refrigeration compressor has failed to turn on. the engineer on duty verifies the electrical circuit to the
motor, including all switches and circuit breakers is complete, according to recomended service practice,
the next item to be checked would likely be the: - CORRECT ANSWER-temperature and pressure controls
Refrigerants are characterized by their physical properties including Flashpoint, refrigeration effect and
others, of the refrigerants in commercial and industrial the highest latent heat and refrigerant effect is: -
CORRECT ANSWER-ammonia
, which of the following ashrae refrigerant safety classification is the most toxic - CORRECT ANSWER-b3
which of the following ashrae refrigerant safety classification is the most flammable - CORRECT
ANSWER-a3
in q indirect refrigeration system,of the following, the one that would not be used as a cooling medium
for building spaces being cooled is - CORRECT ANSWER-r 22 (cooling medium= glycol or any brine
solution)
the primary way of achieving capacity control of a an centrifugal compressor is by: - CORRECT ANSWER-
adjustment to the inlet impeller pre rotation vanes
regarding the functioning of a steam turbine, why is it advisable to keep moisture in the inlet low as
possible - CORRECT ANSWER-keeps turbine blades wear to minimum
a water chiller is equipped with a reciprocating compressor, a thermostatic expansion valve and a an air
cooled condenser. A restriction in the refrigerant line would result in - CORRECT ANSWER-high suction
super heat
the process by which refrigerant is extracted and cleaned for reuse without requirements for
reclamation is called - CORRECT ANSWER-recycle
the purpose of wear rings in a centrifugal pump is to - CORRECT ANSWER-prevent wearing of the pump
housing and impeller
a centrifugal compressor is in operation with suction pressure is 3 psig and the discharge is 10psi what is
the atmospheric pressure is 14.7 which is the ratio closest to - CORRECT ANSWER-1.39
electrical current us measured in - CORRECT ANSWER-amperage
how would you put an additional pump online - CORRECT ANSWER-open suction valve, open discharge
valve gradually
Les avantages d'acheter des résumés chez Stuvia:
Qualité garantie par les avis des clients
Les clients de Stuvia ont évalués plus de 700 000 résumés. C'est comme ça que vous savez que vous achetez les meilleurs documents.
L’achat facile et rapide
Vous pouvez payer rapidement avec iDeal, carte de crédit ou Stuvia-crédit pour les résumés. Il n'y a pas d'adhésion nécessaire.
Focus sur l’essentiel
Vos camarades écrivent eux-mêmes les notes d’étude, c’est pourquoi les documents sont toujours fiables et à jour. Cela garantit que vous arrivez rapidement au coeur du matériel.
Foire aux questions
Qu'est-ce que j'obtiens en achetant ce document ?
Vous obtenez un PDF, disponible immédiatement après votre achat. Le document acheté est accessible à tout moment, n'importe où et indéfiniment via votre profil.
Garantie de remboursement : comment ça marche ?
Notre garantie de satisfaction garantit que vous trouverez toujours un document d'étude qui vous convient. Vous remplissez un formulaire et notre équipe du service client s'occupe du reste.
Auprès de qui est-ce que j'achète ce résumé ?
Stuvia est une place de marché. Alors, vous n'achetez donc pas ce document chez nous, mais auprès du vendeur 2024newestexams. Stuvia facilite les paiements au vendeur.
Est-ce que j'aurai un abonnement?
Non, vous n'achetez ce résumé que pour €24,25. Vous n'êtes lié à rien après votre achat.
