Compressors and blowers - Study guides, Class notes & Summaries

COMPRESSORS, FANS AND BLOWERS TEST QUESTIONS WITH VERIFIED ANSWERS Multi-staging - Answer-is simply the compression of air or gas in two or more cylinders in place of a single cylinder compressor. It is used in reciprocating compressors when pressure of 300 kPa and above are desire, in order to: Save power Limit the gas discharge temperature Limit the pressure differential per cylinder Prevent vaporization of lubricating oil and to prevent its ignition if the temperature becomes to...

Compressors and Blowers Test Questions with All Correct Answers types of reciprocating compressors - Answer-single-stage- uses a single cylinder and compresses once mult-istage - compresses more than once depending on the number of cylinders Filters - Answer-placed before the inlet pipe to trap dust and other foreign materials from entering compressor, use cloth or metal material lubricating systems - Answer-lube oil system- low pressure, oil resevoir, pump, filters, coolers forced...

Troubleshooting Pumps, Compressors and Blowers Exam Questions with Answers The presence of solids on seal faces of a centrifugal pump is an indication of: a. Lubricating oil leak. b. Seal leak. c. Cavitation. d. Worn-out bearing. - Answer-b Insufficient oil in the Trico oiler of na pump indicates: a. Gas bubbles in the casing. b. Failure of seal oil cooling. c. Wear and tear of bearing. d. Leak in the oil fittings. - Answer-d Loose crosshead in a reciprocating pump can be detecte...

Complete Solutions Manual for Turbomachinery, Concepts, Applications and Design, 1st Edition by V. Dakshina Murty. ; ISBN13: 9781138640696. (Full Chapters included Chapter 1 to 12)....Chapter 1 solutions not available. 1. Introduction and History 2. Dimensional Analysis 3. Theory of Turbomachines 4. Hydraulic Turbines 5. Pumps 6. Fans and Blowers 7. Radial Gas Turbines 8. Axial Gas Turbines 9. Radial Compressors 10. Axial Compressors. 11. Steam Turbines 12. Wind Turbines

Compressors, Fans, and Blowers Test Questions with Answers The flow of air or gas is carried by the __________ created by the energy transmitted to the gas by the rotating wheel - Answer-pressure differential If no resistance to flow exists, no inlet and outlet duct, the fan provides the gas with ________ only, and no compression or rarefaction occurs. - Answer-velocity energy It consists of an impeller of the squirrel-cage type, operating within a scroll-type housing and including drivi...

Screw compressors and Lobe Blowers Questions with Answers What are the 3 main types of capacity control used on screw compressors? - Answer-- Suction throttling - Rotating speed - Displacement control What is the most common method of suction throttling control? - Answer-Load/ No load What are the 2 modes of the load/no load control and what are the positions of the inlet valve on each? - Answer-Mode 1: Fully loaded/ open inlet valve Mode 2: Fully unloaded/ Closed inlet valve Wha...

Fans, Blowers, and Compressors Test 2 Questions with Certified Answers Operating Capacity - Answer-The actual flow rate and discharge pressure of a compressor during operation, varies as conditions change Positive Displacement - Answer-A device for raising the compressor pressure of air or gas by trapping a quantity of fluid and reducing its volume by technical action Power Input - Answer-Measured horsepower delivered to the fan shaft Power Output - Answer-Expressed in horsepower and ...

Screw Compressors & Lobe Blowers - 160302a Questions with Answers Which male to female rotor combination is used for high volume, low pressure? (PG. 10) - Answer-3 + 4 Which male to female rotor combination is used for low volume, high pressure? (PG. 10) - Answer-6 + 8 Where are the thrust bearings located on a screw compressor? (PG. 11) - Answer-Discharge End In which direction is thermal growth in a screw compressor? (PG. 11) - Answer-Towards Inlet Which Screw Compressor system h...

PTAC 1410 Final Exam Questions and Answers Already Passed What prevents leakage between internal compartments in rotating equipment? Seals What type of equipment results in a separation of components in a mixture based on differences in boiling points? Distillation Columns What type of equipment is used to heat large volumes of raw materials? Fired Heater What is the purpose of a steam turbine? Convert kinetic energy into mechanical energy What is equipment designed to rotate or move? Rotar...

  A technician has determined a supply in a flexible duct system is leaking. What should be checked? - Answer: All connections inner and outer layers. Electronic air cleaners can operate with internal voltages as high as? - Answer: 5000v Why do some electromechanical type thermostats require connections to both the hot side and common side of the low voltage transfromer - Answer: Display lights must be powered using both sides of the line the continuity reading on a functional fus...