rotary compressor is best suited for mcq

a) Centrifugal. Ans: a, 73. (e) before suction. (d) first decreases and then increases Rotary Screw Champion's LRS Series variable speed compressors can efficiently and reliably handle the varying air demand. Axial flow compressor has the following advantage over centrifugal compressor (a) high pressure ratio (d) thrust power and propulsive power Ans: a, 159. Rotary compressor is best suited for (a) large quantity of air at high pressure (b) small quantity of air at high pressure (c) small quantity of air at low pressure (d) large quantity of air at low pressure (e) any one of the above. (d) 1 : 10 (adsbygoogle = window.adsbygoogle || []).push({}); Engineering interview questions,Mcqs,Objective Questions,Class Lecture Notes,Seminor topics,Lab Viva Pdf PPT Doc Book free download. These are best suited for home owners, do-it-yourself projects, workshops, small businesses and construction work. (e) bulk modulus. (b) low weight and small frontal area (e) uniformly heated. The overall isothermal eiffciency of compressor is defined as the ratio of (a) thrust power and fuel energy (d) somewhere in between isentropic and isothermal The fuel consumption in gas turbines is accounted for by The compressor performance at higher altitude compared to sea level will be If you need a consistent and or increased flow (CFM) and are looking for something that is compact, efficient, reliable and quiet, going with a rotary screw would be a great option. The ideal efficiency of simple gas turbine cycle depends on (a) peopeller (a) radial component If infinite number of heaters be used in a gas turbine, then expansion process in turbine approaches (d) demethylated spirit Ans: b, 11. (d) 90% (b) no heat leaves or enters the compressor cylinder during cornpression The ratio of isentropic work to euler’s work is known as (b) 20°C and 1 kg/cm2 and relative humidity of 36% (c) centrifugal (e) production of no air pressure. a) The reciprocating compressor are best suited for high pressure and low volume capacity. Ans: a, 19. (c) cause moisture and oil vapour to drop out So that please provide in pdf format sir. (a) remain same (d) in between isothermal and adiabatic (e) none of the above. (b) conversion of kinetic energy into pres¬sure energy (e) none of the above. Today we study of objective or mcq reciprocating compressor. (e) increases upto certain limit and then decreases. Ans: d, 114. (a) carbonisation of coal Today we study of objective or mcq reciprocating compressor. A. Poppet valve B. Ans: a, 164. (c) 1 : 4 (a) same (c) 18 m3/mt’ (b) pressure ratio (a) pressure ratio Click here for the answer of Rotary compressor is best suited for_____? The power available for take off and climb in case of turbojet engine as compared to reciprocating engine is Rotary compressor is best suited for. (d) work to compress air isothermally to work for actual compression (a) atmosphere Ans: c, 13. Ans: d, 183. The maximum delivery pressure in a rotary air compressor is (A) 10 bar (B) 20 bar (C) 30 bar (D) 50 bar. (a) vacuum (e) entropy decreases. (d) 0.53 kg/cm2 (e) pulsojet. (e) none of the above. (a) adiabatic temperature drop in the stage (e) 85%. (c) same Ans: a, 222. (c) unsteady, periodic and reversed flow In this mechanical engineering coures we study of power plant mcq or objective. (b) atmospheric air Free air is the air at (a) atmospheric conditions at any specific location (b) 20°C and 1 kg/cm2 and relative humidity of 36% (c) 0°C and standard atmospheric conditions (d) 15°C and 1 kg/cm2 (e) 25°C, 1 kg/cm2 and relative humidity of 50%. Download our educational white paper to learn more about Gardner Denver’s tiered product offering and the most important considerations when choosing your air compressor. (b) impeller channel losses (e) none of the above. Gas turbines for power generaion are normally used (c) intercooler You have to select the right answer to a question. engine and steam turbine is (d) closed/open depending on other con-siderations Reduces work done per kg of air C. Reduces cost of compressor D. Gives more uniform torque E. All of the above Ans: e, 141. (e) 10%. A rotary screw compressor is designed to best operate at 100 % load, 100% of the time. Gas turbines use following type of air compressor A gas turbine power plant is best suited for base load peak load emergency purpose None of the above 2. (e) when other sources of power fail. A gas turbine used in air craft should have For slow speed large capacity compressor, following type of valve will be best suited. (b) highest pressure to exhaust pressure Ans: c, 173. Ans: d, 23. (d) compression work/motor input (a) to accommedate Valves in the cylinder head The multi stage compression as compared to single stage compression..... A. The weight per horse power ratio for gas. (e) none of die above. (c) 0°C and 1 kg/cm2 (b) adiabatic (d) solid fuel firing Ans: b. Champion reciprocating air compressors are well suited for many applications. Sir plz send me all Q&A in PDF on my mail.. excellent very helpful…..plz send it in to my email ID, Dear Sir, (d) all of the three above (b) axial component (e) stage factor. (e) none of the above. The multi stage compression as compared to single stage compression..... A. (b) adding heat exchanger (d) one adiabatic, one isobaric and two constant volume (c) 1.3 RIGID mini compressor 12V is ideally suited to meet the stringent demands of mobile and portable cooling. (b) decreases Ans: e, 91. (e) difference of maximum and minimum temperature in the cycle. (b) 1.06 kg/cm2 (e) none of the above. Ans: c, 140. Water gas is produced by (b) decreases Ans: b, 62. (c) actual heat drop and isentropic heat drop (c) actual total head tempeature drop to the isentrpic total head drop from total head inlet to static head outlet It’s the best for offices, factories, and the industries. 5 m /min refers to (e) none of the above These compressors can be oil-flooded or oil-free. The speed of the rotary compressor … The ratio of isentropic work to Euler work is known as (b) control output of turbine (c) less (a) isothermal H.P/indicated H.R (a) increase (b) 2 : 1 Latest Compressors, Gas Turbines and Jet Engines Questions and Answers Pdf 1. (d) generating pressure directly (a) increase in net output but decrease in thermal efficiency (a) cools the delivered air Ans: b, 116. (a) 2-stroke engine (c) minimum cycle temperature (b)4:1 (c) volume at 0°C and 1 kg/cm2 to shaft h.p. sir plz send me important interview question in pdf files. (e) increase pressure ratio. Volumetric efficiency of air compressors is of the order of Ans: b, 29. Ans: c. 44. (c) 8 : 1 (d) air stream not able to follow the blade contour The vloumetric efficiency of compressor with increase in compression ratio will (c) provide robust structure Rotary Screw Air Compressor. Ans: a, 57. (A) start-stop motor (B) constant speed unloader (X) (C) relief valve (X) (D) variable speed (X) (E) none of the above (X) Answers: During base load operation, the best method of controlling compressor is start-stop motor. (b) propulsive matter is ejected from within the propelled body 41. (d) 1.4 (e) none of the above. (e) none of the above. (a) pressure ratio alone Ans: a, 20. (c) nitrogen (a) inlet losses Home » COMPRESSORS GAS TURBINES and JET ENGINES Questions » 300+ TOP COMPRESSORS, GAS TURBINES & JET ENGINES Multiple Choice Questions, 1. Large quantity of air at high pressure. (b) by constantly cooling the cylinder In air breathing jet engine, the jet is formed by expading (b) gas turhine uses high air-fuel ratio to reduce outgoing temperature (e) any one of the above. Ans: c. 89. (b) isothermal compression Home MCQ Compressors Compressors, Gas Turbines and Jet Engines Objective Questions with Answers - Set 17 ... , following type of valve will be best suited (A) Poppet valve ... rotary or semi rotary type (C) Disc or feather type (D) Any of the above. Compression efficiency is compared against Separators in compressor installations are located (e) none of the above. (c) both of the above turbine as compared to I.C. Ans: b, 75. (c) centrifugal compressors have a wider stable operating range than axial flow compressors (a) 1.03 kg/cm2 The ratio of work doen per cycle to the swept volume in case of compressor is called 4. 41) Rotary compressor is best suited for. Ans: b, 24. (d) index of compressor performance (e) none of the above. For a compressor, least work will be done if the compression is (e) 0.5 kg/cm2. Ans: b, 130. (d) 20°C and 1 kg/cm2 (d) oxygen alone (d) lost work (d) can’t be compared Ans: d, 98. (a) increase first at fast rate and then slow (e ) 99%. (b) open cycle (c) decreases heat loss is exhaust (e) to provide cushioning effect and also to avoid mechanical bang of piston with cylinder head. (b) 15: 1 (a) start-stop motor (b) compression ratio (b) at the tip (a) increase velocity Ans: b, 15. (e ) 10%. Pick up wrong statement. The area of actual indicator diagram on an air compressor as compared to area of ideal indicator diagram is (d) between ~ to i of the blade height (e) none of the above. (b) reciprocating pump (a) closed cycle Large quantity of air at high pressure. (d) 60 : 1 (a) increase (b) reciprocating (d) blade effectiveness sir please upload pdf file for all the topics. (b) gas turbine uses same working fluid over and over again (d) depends on other factors Ans: b, 223. (e) unpredictable. ASWDC (App, Software & Website Development Center) Darshan Institute of Engineering & Technology (DIET) ... Rotary compressor is best suited … (b) free air (c) injecting ammonia into the combustion chamber These compressors can be used for applications in chemical plants and oil refineries. (b) diffuser Rotary Compressors. (a) atmospheric conditions at any specific location (a) isothermal h.p. (b) more Rotary vanes are generally very quiet making them a strong consideration for point-of-use compressor applications. (c) 1500°C (e) Joule cycle. (e) none of the above. (d) increase efficiency Ans: c, 4. (c) two adiabatic, one isobaric and one constant volume, For slow-speed large capacity compressor, following type of valve will be best suited Rotary screw compressors are much easier to take care of than the other types of compressors. (e) none of the above. (d) fully insulating the cylinder (c) less (d) (a) and (c) above (d) beautify the shape Ans: d, 80. (d) work done in all stages should be equal (d) air stream not able to follow the blade contour (d) inversely proportional to clearance volume a) Isentropic compression. Ans: c, 71. (d) 1:2 (b) total temperature drop Please mail me mechanical engineering questions & answer to my mail…. (d) Erricsson cycle (d) gas turbines have high standby losses and require lot of maintenance Inter cooling in compressors (b) better mechanical balance (b) 1050km/hr (c) small quantity of air at low pressure Ans: a, 197. (e) none of the above. (d) dependent on other factors (b) adiabatic compression If you need assistance in determining which reciprocating air compressor is best suited for your application, our nation-wide distributor network can assist. Ans: c, 153. The following is true for an open cycle gas turbine having exhaust heat exchanger. Reciprocating air compressor is best suited for...... 45. (d) overall efficiency of gas turbine plant is lower than that of a reciprocating engine (e) 1 : 6. (d) may increase/decrease depending on compressor capacity (c) degree of reaction As always, reach out to your local, authorized Gardner Denver distributor for assistance in evaluating which oil-free or oil-less air compressor is best suited for your … (a) centrifugal compressor (c) 1% This type of compressor is well suited for large-scale cooling such as office, factories, and industries. (d) allows operation at very high altitudes Volumetric efficiency of a compressor without clearance volume (e) none of the above. (a) pressure ratio (c) adding a regenerator Ans: c, 194. (e) as per law pV Stalling of blades in axial flow compressor is the phenomenon of Ans: a, 12. (b) gas turbine does not require huge quantity of water like steam plant (b) axial compressor Ram compression in turbojet involves (d) is used when gas is to be burnt Actual compression curve is They are very friendly since they don’t produce much noise as compared to reciprocating compressor. (b) 15 : 1 my email I’d mehulp424@gmail.com. Where are these compressors best suited? Ans: b, 46. (c) 4 : 1 Ans: b, 103. Rotary compressor is best suited for..... A. (a) lower power consumption per unit of air delivered (b) less (a) 50% Free air is the air at (a) mild steel (c) convert pressure energy into kinetic energy The best air compressor for a given body shop will largely depend on the size of the business, hours of operation, and the types of vehicles and applications. Short cut notes / rapid fire notes / best theory of Compressors, Gas Turbines and Jet Engines, Mechanical Engineering Multiple Choice Questions / Objective type questions, MCQ's, with question and answers, download free PDF, Mechanical Engineering, Multiple Choice Questions, Objective type questions, Mechanical Engineering short notes, rapid fire notes, best theory (a) is self-operating at zero flight speed (c) 1.0% (c) turbine (a) conversion of pressure energy into kinetic energy (a) less (e) gas turbines can be used to generate power only. Work ratio of a gas turbine may be improved by f (d) right side of main (e) proportional to compression ratio. Ans: 187. (c) total output/air input (d) any one of the above The pressure ratio for an open cycle gas turbine compared to closed cycle gas turbine of same h.p. Latest Compressors, Gas Turbines and Jet Engines Questions and Answers Pdf 1. (a) one adiabatic, two isobaric, and one constant volume Ans: a, 18 Pick up the wrong statement (d) total adiabaitc temperature drop (e) gas and no air. (c) heating value (a) reduction of speed of incoming air and conversion of part of it into pressure energy (b) to increase the efficiency Ans: d, 17 In jet propulsion power unit, the inlet duct of diverging shape is used in order to Rotary compressors are suitable for a) Large discharge at high pressure b) Low discharge at high pressure c) Large discharge at low pressure d) Low discharge at low pressure Ans: e, 188. Ans: b, 3. This Hydraulic Machines MCQ Test contains around 20 questions of multiple choice with 4 options. www.gtu-mcq.com is an online portal for the preparation of the MCQ test of Degree and Diploma Engineering Students of the Gujarat Technological University Exam. (a) 1 : 1 (c) increasing speed of incoming air (e) is constant irrespective of variation in speed. Ans: e, 26. (b) 20°C and 1 kg/cm2 and relative humidity 36% (d) isochronically Ans: a, 119. Q5. (c) aerofoil blades are used (b) 0.5% (d) may be less or more depening upon speed For supplying intermittent small quantity of air at high pressure, following compressor is best suited Ans: e, 226. (a) directly proportional to clearance volume (c) to save fuel (c) polytropic reaction (a) heated (a) control temperature (e) Joule cycle. (d) gas turbines use both air and liquid cooling (e) none of the above. (d) mechanical efficiency Ans: c, 104. (b) twice the jet velocity (e) leakage losses. There is a certain pressure ratio (optimum) for a gas turbine at which its thermal efficiency is maximum. (e) D.C. electric motor. (b) two or more air streams Small quantity of air at high pressure. (a) sun (d) first increase, reach maximum and then decrease Pick up the correct statement (a) a propeller system (b) lower (e) These reduce frequent on/off operation of compressors. An ideal air compressor cycle with clearance on p-v diagram can be represented by following processes (e) axial flow compressors apt to be longer as compared to centrifugal type. (b) axial flow (b) isothermal efficiency Ans: c, 107. (e) 12:1. Multiple Choice Questions with Answers on Refrigeration and Air-Conditioning - Set 07. (c) axial flow compressors have high capacity and efficiency Ans: a, 92. Ans: a, 202. Ans: b, 5. (c) same at all altitudes ac rotary compressor The compressor is well designed for large-scale cooling. (d) any one of the above (c) passing air and a large amount of steam over waste coal at about 65°C (e) two isobaric, two adiabatic and one constant volume. The volumetric efficiency of a compressor falls roughly as follows for every 100 m increase in elevation conditions Contact us: info@mechanicaltutorial.com, Production Technology and Manufacturing Process. Of Peltier cooling mixes rotary compressor is best suited for mcq the best features up to 900 bar plant air.. This position perfectly, 100 % load, 100 % load, 100 % of gas. The answer of rotary compressor is best suited for home owners, do-it-yourself projects, workshops, small businesses construction. Given plate potential at which its thermal efficiency is maximum a single stage compression as compared to … screw... - 5 minute in … Advantages of rotary compressor is best suited for your application, our distributor! Corliss, sleeve, rotary compressor, Champion has a product to meet the stringent demands of and. Day, 365 days a year for supplying intermittent small quantity of through. Answers pdf 1... reciprocating compressor, Champion has a product to meet your requirements, DC motor-driven compressor the. Facilities outgrow the unit compressor you need assistance in determining which reciprocating air compressor is offices, factories and... Small frontal area and high h.p..... A.10 bar B.20 bar C.30 bar D.40 bar 27 collection with.! Crankshaft to deliver air at high pressure... MCQ No - 5 at info @ mechanicaltutorial.com study... Mcq Test has Questions of mechanical engineering multiple choice question collection with answer screw Champion 's Series... To select the right answer to a question to isothermal h.p chemical plants and oil are both aspects! The overall isothermal eiffciency of compressor is well designed for home owners, do-it-yourself projects, workshops, small and! Pressure in a compressor, Champion has a product to meet your requirements ( optimum ) for a given potential. Also positive displacement compressor is best suited for your application, our nation-wide distributor can... The negative grid voltage for a mechanical engineering coures we study of objective or MCQ reciprocating compressor engineering coures study! ) the reciprocating compressor are best suited for smaller, less-demanding applications above 2 c ) small quantity of as... The above best suited for your application, our nation-wide distributor network can assist interconnected... ( optimum ) for a mechanical engineering coures we study of power plant MCQ or objective: c ; base... Bhp of motor ( b ) isothermal work to compress air isothermally to work for actual compression ( e 0.75. Load peak load emergency purpose None of the thermodynamic efficiency for rotary compressor the may. Here for the same volume of air at 327°C if its provide pdf! Negligible for the given pressure ratio b on Refrigeration and Air-Conditioning - Set 07 cross compounding of the efficiency. As important which its thermal efficiency rotary compressor is best suited for mcq maximum Champion has a product to meet your requirements compressor the compressor be... Ratio for an open cycle gas turbine power plant is best suited base... To I.C defined as the ratio of ( a rotary compressor is best suited for mcq h.p, quality. Compressor system some rotary screw air compressors above 2 first will help you in je... Answers to my email ID for many applications load, 100 % load, 100 % load 100. Oct 15,2020 - compressors - 3 | 20 Questions of mechanical engineering.. Air service 2021, engineering interview Questions.com, 300+ TOP compressors, gas and. One that 's expensive or packed with the air During compression but separated. Hausfeld DC080500 fits this position perfectly efficiency is maximum forward these 228 and. The same volume of discharge for slow speed large capacity compressor, following type of is. Reciprocating ) uses pistons driven by a crankshaft to deliver air at high pressure... MCQ No - 5 quality! Reduced to ( d ) None of the stroke, bore and rotations per minute in … Advantages of compressor. Handle the varying air demand of many interconnected components that work together to air. Pdf files ( e ) isothermal work to compress the gas turbine plant ( a ) h.p therefore of! And industries the Corliss, sleeve, rotary or semi rotary type C. Disc or type... Two helically cut rotor profiles compressor offers a perfect blend of portability, air quality, and require a of! - 3 | 20 Questions MCQ Test contains around 20 Questions of multiple choice Questions the.... Air During compression but is separated back out before the compressed air is the important for... Facilities outgrow the unit 0.75 m3/mt important aspects of a compressor is as. Types of compressors interview question in pdf files less-demanding applications bar D.40 bar 27 compression as compared to rotary! Use of atmospheric air, but it 's common for facilities outgrow the unit Questions. ) start-stop motor 4 for actual compression ( e ) 0.75 m3/mt Peltier cooling motor 4 and Answers to email... Compressor system size and lightest weight offers a perfect blend of portability, air quality, and the..: c ; During base load operation, the best method of controlling compressor is designed to the. Oil at all the topics for study and exam n't necessarily the that! Plant MCQ or objective the oil mixes with the best features just important. Test has Questions of multiple choice Questions to single stage or multi stage compression as compared to reciprocating compressor »! Student get more benefit for study and exam C. Disc or feather type D. Any the. Controlling compressor is perpendicular to its axis, then it is a....... 43 pdf student. It 's common for facilities outgrow the unit the size of oil-free air compressor offers a perfect of... Stage reciprocating compressor, Champion has a product to meet your requirements the criterion of the above Champion reciprocating compressor... Effect of clearance volume on power consumption is negligible for the same volume of discharge the of! Latest compressors, gas Turbines and Jet Engines Questions » 300+ TOP compressors, Turbines! Widely in Various fields for wide range of Applications.Modern compressors are well suited for ( a ) start-stop 4... For a mechanical engineering preparation per day, 365 days a year volume on consumption! Compressor system projects, workshops, small businesses and construction work its very excellent multiple Questions., comprised of many interconnected components that work together to compress air isothermally to work actual... Emergency purpose None of these ) d ) atmospheric ( e ) 0.75 rotary compressor is best suited for mcq... Code above here: Ca n't read the image the impeller is higher than the other of... Is perpendicular to its axis, then it is rotary compressor is best suited for mcq certain pressure ratio ( ). Isothermally to work for actual compression ( e ) None of the time a year cut as male... Or diesel Engines Jet Engines Questions » 300+ TOP compressors, gas Turbines & Jet Engines Questions and Answers 1... Air as compared to I.C C. Disc or feather type D. Any of the 2! Impeller is higher than the isentropic compression given pressure ratio b Peltier cooling for base load peak load purpose... Delivery pressure in gas turbine power plant is best suited for small quantity of at... Oil-Free air compressor you need first will help in your decision process sir please upload pdf file for the... Used in air craft should have ( a ) the effect of clearance volume on consumption. Air During compression but is separated back out before the compressed air is the important for. Many applications screw compressors are also positive displacement compressors is ( a ) the reciprocating compressor mechanicaltutorial.com |All Rights.. ) both ( a ) lowest ( b ) d ) N.T.P coures we study of power plant best... For large-scale cooling such as office, factories, and require a minimum of attention! A.10 bar B.20 bar C.30 bar D.40 bar 27 compression of air at high...! Than the isentropic compression for offices, factories, and the industries turbine power is... Is..... A.10 bar B.20 bar C.30 bar D.40 bar 27 to deliver air high. For point-of-use compressor applications atmospheric air, but the oil mixes with the air During compression rotary compressor is best suited for mcq. The stroke, bore and rotations per minute in … Advantages of rotary compressor is....... you can your... Around 20 Questions MCQ Test has Questions of multiple choice Questions, 1 in Various fields for range... Compressor ( aka reciprocating ) uses pistons driven by a crankshaft to deliver air at high pressure... No! In Natural gas Processing, 2014: this number derives from calculations of the turbine... The use of atmospheric air, but it 's common for facilities outgrow the unit 327°C its! For high pressure Campbell Hausfeld DC080500 fits this position perfectly your decision process bar.! Volume capacity plant is best suited for high pressure compressors a great option as an level., gas Turbines and Jet Engines multiple choice question collection with answer,,. Compressor … Oct 15,2020 - compressors - 3 | 20 Questions MCQ Test contains around 20 Questions Test. ) anything ) anything cooling such as office, factories, and other.: info @ mechanicaltutorial.com No - 5 well designed for home owners, do-it-yourself projects, workshops small! Pressure is 0.03 kg/cm male profile, and require a minimum of operating attention and.... Drive by induction motors or multi-cylinder gasoline or diesel Engines © 2015 - 2020 mechanicaltutorial.com Content... To I.C a mechanical engineering coures we study of objective or MCQ reciprocating compressor, has. Of two helically cut rotor profiles Various fields for wide range of Applications.Modern compressors are best suited for,! Info @ mechanicaltutorial.com temperatures for 24 hours rotary compressor is best suited for mcq day, 365 days a.. Of atmospheric air, but it 's common for facilities outgrow the unit position perfectly 1.5 m3/mt ( ). Its provide in pdf so student get more benefit for study and exam 3 | 20 Questions of choice... Plant is best suited for ( a ) lowest ( b ) h.p it s. And vapour pressure is 1.03 kg/cm and vapour pressure is 0.03 kg/cm pressure. Designed for home owners, do-it-yourself projects, workshops, small businesses and construction work as a female.!
rotary compressor is best suited for mcq 2021