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Steam boiler engine nozzle turbine
1-Dont try to cram or spend more time here just read it fast and cover syllabus then practice MCQ's cheptor of same topic to check your progress. . |
2-Wrong options are also given but dont concentrate there, Right answer is in bold format. |
Q61 ⇒ The change in internal energy in steam engines equals to work done during the rankine cycle ; [other wrong options] [Discuss in forum] work done during compression. work done during adiabatic expansion change in enthalpy none of the above. |
Q62 ⇒ Water tube boilers are those in which work is done during adiabatic expansion [other wrong options] [Discuss in forum] flue gases pass through tubes and water around it water passes through the tubes and flue gases around it change in enthalpy none of the above. |
Q63 ⇒ Locomotive type' boiler is horizontal multi-tubular fire tube type [other wrong options] [Discuss in forum] horizontal multitubular water tube boiler water wall enclosed furnace type vertical tubular fire tube type none of the above types. |
Q64 ⇒ Lancashire boiler is of all of the above. [other wrong options] [Discuss in forum] stationary natural circulation type internally fired type |
Q65 ⇒ Fire tube boilers are those in which flue gases pass through tubes and water around it [other wrong options] [Discuss in forum] water passes through the tubes and flue gases around it forced circulation takes place tubes are laid vertically none of the above. |
Q66 ⇒ Which of the following substance will have same percentage in both proximate and ultimate analysis ash [other wrong options] [Discuss in forum] volatile matter moisture hydrogen none of the above. |
Q67 ⇒ The number of flue tubes in Lancashire boiler is two [other wrong options] [Discuss in forum] zero one four many. |
Q68 ⇒ Which of the following is a fire tube boiler locomotive boiler [other wrong options] [Discuss in forum] Babcock and Wilcox boiler Stirling boiler. all of the above none of the above. |
Q69 ⇒ Which of the following is a water tube boiler Babcock and Wilcox boiler [other wrong options] [Discuss in forum] locomotive boiler Cochran boiler Cornish boiler Lancashire boiler. |
Q70 ⇒ The diameter of cylindrical shell of the Lancashire boiler is of the order of 1.75 to 2.75 m [other wrong options] [Discuss in forum] 1 tp 1.25m 1 to 1.75 m 2 to 4 m 2.25 to 4.5 m. |
Q71 ⇒ A packaged boiler is one in which various parts like firing equipment, fans, feed pumps and automatic controls are supplied mounted on a single base [other wrong options] [Discuss in forum] supplied by same manufacturer loose and assembled at site purchased from several parties and packed together at site packaged boiler does not exist none of the above. |
Q72 ⇒ The biggest size of thermal power unit operating in India is 500 MW. [other wrong options] [Discuss in forum] 30 MW 60 MW 100 MW 210 MW |
Q73 ⇒ Which of the following coals has the highest calorific value anthracite coal [other wrong options] [Discuss in forum] bituminous coal lignite peat wood. |
Q74 ⇒ The high pressure boiler is oiie producing steam at a pressure more than 75-80 kg/cm2. [other wrong options] [Discuss in forum] atmospheric pressure 5 kg/cm2 10 kg/cm2 40 kg/cm2 |
Q75 ⇒ The crown of the fire box is made hemispherical in order to resist intense heat in fire box [other wrong options] [Discuss in forum] give maximum space give maximum strength withstand pressure inside boiler , enable easy,manufacture. |
Q76 ⇒ Which of the following is steam dbal non-coking bituminous coal [other wrong options] [Discuss in forum] brown coal pulverised coal coking bituminous coal none of the above. |
Q77 ⇒ The fire tubes in, a Coarran and Scotish marine boiler are horizontal [other wrong options] [Discuss in forum] vertical inclined both horizontal and vertical horizontal and inclined. |
Q78 ⇒ The diameter of internal flue tubes in a Lancashire boiler compared to its shell is two-fifth. [other wrong options] [Discuss in forum] one-half one-third one-fourth one-fifth |
Q79 ⇒ The basic purpose of drum in boiler is to separate steam from water [other wrong options] [Discuss in forum] serve as storage of steam serve as storage of feed water for water wall remove salts from water control level. |
Q80 ⇒ Duplex feed pumps are used in small steam boilers. These operate on the principle of reciprocating pump. [other wrong options] [Discuss in forum] centrifugal pump axial flow pump gear pump ejector pump |
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