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Home⇒ Engineering⇒
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. |
Q81 ⇒ The best suited coal for chain or travelling grate stoker boiler is non coking or free burning coal [other wrong options] [Discuss in forum] coking coal pulverised coal high sulphur coal least ash content coal. |
Q82 ⇒ In natural circulation type boiler, heating takes place at bottom and the water supplied at bottom gets converted into the mixture of steam bubbles and hot water which rise to drum [other wrong options] [Discuss in forum] water is supplied in durm and through down-comers located in atmospheric conditon it passes to the water wall and rises to drum in the form of mixture of water and steam feed pump is employed to supplement natural circulation in water wall type furnace water is converted into steam in one . pass without any recirculation water is fed at atmospheric pressure. |
Q83 ⇒ Hard coke is produced by carborisation of coal at 95O-1100°C [other wrong options] [Discuss in forum] atmospheric temperature 500-600°C 70O-850°C 120O-1500°C. |
Q84 ⇒ Hard coke is used in blast furnace [other wrong options] [Discuss in forum] cement industry thermal power plant domestic use locomotives |
Q85 ⇒ Pick up the correct statement as regards Cornish boiler and Lancashire boiler lancashire has two fire tubes and cornish has one [other wrong options] [Discuss in forum] cornish is fire tube and lancashire is water tube cornish is water tube and lancashire is fire tube cornish has two fire tubes and lancashire has one both have two fire tubes. |
Q86 ⇒ In locomotive boiler, maximum steam pressure is limited to 18 kg/cm2 [other wrong options] [Discuss in forum] 1 kg/cm2 5 kg/cm2 10 kg/cm2 31 kg/cm2. |
Q87 ⇒ Locomotive boiler is of the following type all of the above. [other wrong options] [Discuss in forum] multitubular horizontal internally fired mobile |
Q88 ⇒ The shell diameter and length of locomotive boiler are 1.5 m, 4 m [other wrong options] [Discuss in forum] 1.5 m, 6 m 1 m, 4 m 2 m, 4 m 1.5 m, 8 m. |
Q89 ⇒ The water tubes in a babcock and wilcox boiler are inclined [other wrong options] [Discuss in forum] horizontal vertical horizontal and inclined vertical and inclined. |
Q90 ⇒ Which of the following varieties of coals is mostly used in steam boilers none of the above. [other wrong options] [Discuss in forum] non-coking bituminous coal brown coal peat coking bituminous coal |
Q91 ⇒ The diameter of tubes for natural circulation boiler as compared to controlled circulation boilers is more [other wrong options] [Discuss in forum] less same could be more or less depending on other factors none of the above. |
Q92 ⇒ A boiler in India should conform to safety regulations of IBR [other wrong options] [Discuss in forum] DIN BS ASTM GOST. |
Q93 ⇒ The function of injector used in small steam plants is to pump feed water [other wrong options] [Discuss in forum] create vacuum in furnace create vacuum at turbine exhaust dose chemicals in feed water control steam temperature by injecting water. |
Q94 ⇒ Which of the following boilers is best suited to meet fluctuating demands locomotive [other wrong options] [Discuss in forum] babcock and wilcox lancashire cochran comish. |
Q95 ⇒ In accelerated circulation type boiler water is supplied in drum and through down comers" located in atmospheric condition it passes to the water wall and rises to drum in the from of mixture of water and steam [other wrong options] [Discuss in forum] heating takes place at bottom and the water supplied at bottom gets converted into the mixture of stdam bub bles and hot water which rise to durm feed pump is employed to supplement natural circulation in water wall type furnace water is fed under high pressure and high velocity. |
Q96 ⇒ Pick up the wrong statement about water tube boiler in comparison to fire tube boilers chances of explosion are less in former case. [other wrong options] [Discuss in forum] former generates steam at high pres¬sure former occupies less space for same power rate of steam flow is more in former case former is used for high installed capacity |
Q97 ⇒ The number of drums in Benson steam generator is no drum [other wrong options] [Discuss in forum] one two one steam drum and one water drum none of the above. |
Q98 ⇒ A fusible plug is fitted in small boilers in order to extinguish fire if water level in the boiler falls below alarming limit [other wrong options] [Discuss in forum] avoid excessive build up of pressure avoid explosion control steam dome remove molten ASL. |
Q99 ⇒ The fusible plug in small boilers is located over the combustion chamber [other wrong options] [Discuss in forum] in the drum in the fire tubes above steam dome at the inlet of chimney. |
Q100 ⇒ Fusible plug for boilers is made of fusible metal containing tin, lead, and bismuth [other wrong options] [Discuss in forum] copper aluminum nickel iron. |
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