Centrifugal compressor - Study guides, Class notes & Summaries

50 degrees centigrade equals Ans: 122 degrees F. (1.8 x C + 32F). An evaporator, generator, absorber, is a Ans: component of an absorption water chiller. A British Thermal Unit is Ans: the amount of heat required to change, one pound of water one degree Fahrenheit. A centrifugal compressor is Ans: basically a large capacity unit that handles large volumes of refrigerant. A common type of refrigerant control device used on centrifugal systems is? Ans: a high side float. A compressor rai...

Compressor Theory and Designs Chapter 8 Test Questions with Verified Answers If _____ is used then the cylinder is constructed with integral cast fins which provide increased radiating area. a. Water cooling. b. A water jacket. c. Glycol cooling. d. A sliding vane compressor. e. Air cooling. - Answer-e The lobe type compressor runs at speeds up to about _____ RPM. a. 1550. b. 1600. c. 1650. d. 1700. e. 1750. - Answer-e A _____ is a type of rotary compressor. a. Two lobe. b....

1. When repairing a refrigeration system, a swaging tool set would be used to carry out which of the following operations? Ans: Swaging tools can be used to expand an end of one tube to fit onto a tube of the same original outside diameter. 2. In a refrigeration system that is not protected by a water failure switch, if the cooling water to the condenser fails, what will be the result for protective purposes? Ans: the compressor will shut down by the action of the high-pressure cutout s...

NATE CORE STUDY GUIDE(correct answers)to passWhich of the following is not the product of incomplete combustion: Oxides of nitrogen An oil trap is required at the base of the discharge line of the vertical riser is _____ or above 8 feet A diode allows current to flow in one direction: True 1 Watt = _____ Btu 3.41 Current in a closed circuit is limited by which of the following: resistance An oil separator is located in the _____: Discharge line ___...

Air compressors power... - CORRECT ANSWER (1) industrial equipment and (2) construction tools Examples of equipment powered by air compressor - CORRECT ANSWER pneumatic wrenches, lifts in auto service stations, paint spray booths Air compressors enable... - CORRECT ANSWER (1) efficient repair of all types of vehicles; and (2) facilitate their safe operation on public thoroughfares Permit is required for air compressor - CORRECT ANSWER that compresses...

FDNY Z51 EXAM 2024 WITH 350+ REAL EXAM QUESTIONS AND 100% CORRECT ANSWERS GRADED A/ REAL FDNY Z-51 EXAM 2024/2025 LATEST VERSION(BRAND NEW!!) What happens when a steam turbine reaches critical speed? - ANSWER-Turbine will vibrate violently In a steam turbine, what is the function of the kingsbury thrust bearing - ANSWER-Maintain axial positioning of the rotor shaft The efficiency of the refrigerant cycle is affected by the operation of the condenser. of the following. a more efficient...

When you replace a capacitor, the replacement can be ______ the rating of the current capacitor. 10% under 10% over 15% over 20% over : 10 % over How many acres of flooded land would be considered a flood? 1/2 acre 1 acre 2 acres 3 acres : 2 acres What is the minimum overlap for aluminum tape? 2 | P a g e 2" 1" 3/4" 1/2" : 1" Which of the following is not a type of compressor? crew combustion scroll centrifugal : combustion When do you change the oil in a compress...

3B2 Power Engineer Exam Practice The disadvantages of a gas turbine are: 1. High cost of manufacture 2. High levels of noise pollution are produced 3. Low thermal efficiency 4. Requires many auxiliaries to be efficient A. 1, 2, 3 B. 1, 3, 4 C. 2, 3, 4 D. 1, 2, 4 E. 1, 2, 3, 4 - E The most common process method of refrigeration is: Select one: A. Absorption B. Lithium bromide C. Water vapor D. Vapor compression or mechanical E. Ammonia compression system - D To facilitat...

FDNY Z-51 EXAM TEST ACTUAL EXAM QUESTIONS AND CORRECT DETAILED ANSWERS |ALREADY GRADED A+ 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 Lowering the condenser pressure What happens when a steam turbine reaches critical speed Turbine will vibrate violently What Device automatically controls the speed of a steam turbine Governor valve Under what circumstances is...

written z51 Exam Questions With verified Solutions 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: - ANS Lowering the condensing pressure The heat removed from the refrigerant in a condenser is: - ANS Sensible and latent heat The refrigerant unit that you have been assigned to is being taken out of service for a major repair. you have been assigned to withdraw re...