A centrifugal Study guides, Class notes & Summaries
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A-35 Air compressor COF Exam Questions And Answers
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A-35 Air compressor COF Exam Questions And Answers 
 
 
A permit is required for any air compressor that compresses air at pressures above ___ pounds 
per square inch (psi). These permits are issued by the Bureau of Fire Prevention - ANS 100 
 
The different types of air compressors are - ANS the reciprocating, 
centrifugal, rotary and solar compressors 
 
The most commonly used air compressor is the - ANS reciprocating air compressor 
 
The air 
compressors can be powered by - ANS elec...
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NATE Exam: AC & HP Questions With 100% Correct Answers | Updated & Verified 2024
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NATE Exam: AC & HP Questions With 100% Correct Answers | Updated & Verified 2024 
a (Centrifugal) - Correct Answer-Which of the following compressors are considered a dynamic compressor? 
 
a. Centrifugal b. Reciprocating d. Rotary 
c. Scroll
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Texas Wastewater Class A Exam Prep Questions with Complete Solutions 2023/2024
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Seeding of BOD samples is necessary when samples - Correct Answer (All of the above) have a chlorine residual, have a previously been chlorinated, have been subjected to high temperatures, contain high or low pH industrial wastes 
 
When is blue-green algae the most dominant on a pond treatment system? - Correct Answer Summer 
 
A 30-inch diameter wastewater interceptor is observed to be flowing half-full at about two fps. The approximate volume of wastewater flowing through the pipe is 3.14x1.2...
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TCEQ D Wastewater Exam Questions and Answers
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TCEQ D Wastewater Exam Questions and Answers 
 
Minimum velocity at average flow in a sanitary sewer should be about ____ft/sec? - Answer-2ft/sec 
 
What types of pumps are used? - Answer-Centrifugal 
 
Lime controls what? - Answer-pH 
 
Good house keeping is important for the operators _______ - Answer-Safety 
 
F/M ratio formula represented by: - Answer-Volatile, suspended solids, aeration tank (VSSAT) 
 
A chlorine leak is detected by_______ - Answer-Vapor 10% ammonia 
 
Main purpose of BOD ...
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EPA 608 Type 3 Questions and Answers Already Passed
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EPA 608 Type 3 Questions and Answers Already Passed On low pressure chillers, moisture typically enters the refrigerant system through air leaks from areas with gaskets or fittings 
The maximum test pressure for leak testing a low pressure centrifugal is: 10 psig 
Leak test and repair the chiller to reduce refrigerant loss from a pruge unit on CFC-11 chiller ... 
A hydrostatic tube test kit is used to: determine if a tube leaks 
Commercial and industrial process refrigeration systems must be rep...
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NCTI Installer Technician Exam Questions And Answers
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20 milliamperes is the same as ________. (Remember, 1 milliampere = 0.001 ampere.) 
- Answer 0.02 amperes 
The orbital shell that has a maximum electron capacity of 18 electrons is the 
___________ shell. - Answer Third 
A semiconductor material - Answer Has four valence electrons. 
The major factor for determining whether a particular element is a conductor, a 
semiconductor, or an insulator is - Answer The number of electrons in the valence shell. 
Elements that are called conductors - Answer ...
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FDNY A-35 questions with answers graded A+ 2023
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FDNY A-35 questions with answers graded A+ 2023Air compressors power... 
(1) industrial equipment and (2) construction tools 
 
 
 
Examples of equipment powered by air compressor 
pneumatic wrenches, lifts in auto service stations, paint spray booths 
 
 
 
Air compressors enable... 
(1) efficient repair of all types of vehicles; and (2) facilitate their safe operation on public thoroughfares 
 
 
 
Permit is required for air compressor 
that compresses air above 100 PSI 
 
 
 
Types of air com...
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EPA 608 Type 3 questions with correct answers
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On low pressure chillers, moisture typically enters the refrigerant system through ans air leaks from areas with gaskets or fittings 
 
The maximum test pressure for leak testing a low pressure centrifugal is: ans 10 psig 
 
Leak test and repair the chiller to reduce refrigerant loss from a pruge unit on CFC-11 chiller ans ... 
 
A hydrostatic tube test kit is used to: ans determine if a tube leaks 
 
Commercial and industrial process refrigeration systems must be repaire...
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NACE CIP 2 Exam Questions and Answers 2023
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Describe passivation - ANSWER-Passivation is the formation of a protective oxide Film on the surface reducing its chemical activity and its ability to corrode 
 
Describe the following factors and how they affect corrosion - ANSWER-Oxygen: oxygen increases the rate of corrosion temperature 
Temperature: corrosion usually accelerated with increasing temperature 
Chemical salts: increase the rate of corrosion by increasing the efficiency of the electrolyte 
humidity: the wetter the environment,...
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BECC Test 5 Questions with 100% Correct Answers | Latest Version 2024 | Expert Verified | Ace the Test
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A fixed volume of liquid is discharged by a centrifugal pump (TRUE/FALSE) False 
Which centrifugal pump component prevents reverse flowof liquid through the pump? 
Check valve 
What is used to move fluid from one location to another? Pump 
What centrifugal pump component rotates and causes centrifugal force to act on the fluid ? 
Impeller 
What centrifugal pump component prevents over heating of the pump? Recirculation line 
What condition occurs if there are bubbles forming in the pump casing? ...
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