Description : Which type of boiler is used critical pressure……….. A. Benson boiler. B. Water tube boiler. C. Fire tube. D. Steam boiler
Last Answer : A. Benson boiler
Description : A ultra-super critical boiler technology is today the option of choice for most new……. fired power stations. a) Coal b) Natural gas c) Biogas d) Oil
Last Answer : a) Coal
Description : If ……. has a future, then ultra-super critical boiler will be the key. a) Coal b) Fossil fuels c) Natural gas d) Oil
Description : In 1922,_____ was granted a patent for a boiler designed to convert at high pressure. (a)Mark Benson (b)James Watt (c) Alexander Graham Bell (d)Archimedes
Last Answer : (a)Mark Benson
Description : Who patent design for boiler. A. Mark Benson. B. Mark Zuckerberg C. Newton. D. C.N. Rao
Last Answer : A. Mark Benson
Description : What is the major disadvantage of the Benson boilers? a) Boiler is big in size b) Has large storage capacity c) Deposition of salts d) Bubble formation
Last Answer : c) Deposition of salts
Description : What is the capacity of Benson boiler? a) 180 tonnes/hr & above b) 150 tonnes/hr & above c) 250 tonnes/hr & above d) 300 tonnes/hr & above
Last Answer : b) 150 tonnes/hr & above
Description : In which year was Benson boiler was invented? a) 1918 b) 1920 c) 1921 d) 1922
Last Answer : d) 1922
Description : Yuhuan has ……. first 1000MW ultra-super critical pressure boiler. a) America b) China c) India d) Russia
Last Answer : b) China
Description : In ultra-super critical boiler technology the units run at about ……. efficiency. a) 40% b) 50% c) 55% d) 45%
Last Answer : d) 45%
Description : A ultra-super critical boiler was developed in the US in ……. a) 1950s b) 1970s c) 1960s d) 1940s
Last Answer : a) 1950s
Description : A ultra-super critical boiler generates less emission per……of power output. a) Kilowatt b) Watt c) Megawatt d) Metric horse power
Last Answer : c) Megawatt
Description : Ultra-super critical boiler uses steam with very high temperature up to …… a) 980° b) 620° c) 550° d) 720°
Last Answer : b) 620°
Description : A ultra-super critical boiler operates at…… a) artlU-Supercritical pressure b) Thermal pressure c) Critical pressure d) Atmospheric pressure
Last Answer : a) artlU-Supercritical pressure
Description : What is the critical point of steam generation in a “once through” boiler? a) 221.5 bar b) 221.4 bar c) 221.3 bar d) 221.2 bar
Last Answer : d) 221.2 bar
Description : Steam is generated in a _____ boiler at a pressure above the critical point. a) Simple b) once through c) Superficial d) thrice through
Last Answer : c) Superficial
Description : Which type of generator is a type of boiler that at maximum critical pressure frequently used in the production of electric power. a. Supercritical boiler b. High pressure boiler c. Low pressure boiler d. None
Last Answer : a. Supercritical boiler
Description : Find false statement a. Tube of supercritical boilers are self-supporting b. Corners are easy to form c. Uniform heating of water takes place in supercritical boiler occurs d. All
Last Answer : c. Uniform heating of water takes place in supercritical boiler occurs
Description : What type of boiler is supercritical boiler a. Drum type b. Once through type c. Both d. None
Last Answer : b. Once through type
Description : The world’s first boiler using supercritical technology was introduced by “B&W” in ______ a. 1948 b. 1936 c. 1928 d. 1957
Last Answer : d. 1957
Description : State disadvantage of Supercritical boiler. a. Corrosion problem b. Setting of material in feed lines can produce explosions c. Leakage problem d. All
Last Answer : d. All
Description : Supercritical is ___% efficient than subcritical boiler. a. 42-47 b. 50-55 c. 32-38 d. More than 60
Last Answer : a. 42-47
Description : supercritical boiler are use of………….. A. Thermal power. B. Electric power C. Solar power. D. Steam power
Last Answer : B. Electric power
Description : Supercritical boiler generate___ to ___pressure. a) 22Mpa to 25Mpa b) 28Mpa to 20Mpa c) 23Mpa to 27Mpa d) 25Mpa to 28Mpa
Last Answer : a) 22Mpa to 25Mpa
Description : In a typical layout of a 215MW reheat power plant, the feed in the boiler is at? a) 280 degree Centigrade b) 230 degree Centigrade c) 238 degree Centigrade d) 250 degree Centigrade
Last Answer : c) 238 degree Centigrade
Description : A supercritical boiler is one that operates above the pressure and temperature of following values a) 100 kg/cm² and 540°C b) 1 kg/cm² and 100°C c) 218 kg/cm² abs and 373°C d) 218 kg/cm² abs and 540°C
Last Answer : c) 218 kg/cm² abs and 373°C
Description : A ultra-supercritical steam generator operates at pressures above the critical pressure- a. 2400 psi b. 1500 psi c. 3200 psi d. 4600 psi
Last Answer : c. 3200 psi
Description : Higher plant efficiency up to______ over the entire load range. a. 30%-50% b. 20%-40% c. 60%-90% d. 50%-80%
Last Answer : a. 30%-50%
Description : Type of Lamont boiler is_______ a. Forced circulation b. Natural circulation c. Over-through d. Positive forced circulation
Last Answer : a. Forced circulation
Description : Which of these is not a type of steam generator depending upon the kind of applications? (rra) utility steam generators (rrb) marine steam generators ( c) agricultural steam generators (rrd) industrial steam generators
Last Answer : ( c) agricultural steam generators
Description : Why is exhaust steam coming out of turbine is admitted to a steam header? A] To increase the pressure. B] To decrease the velocity C] To decrease the pressure drop. D] To control the pollution
Last Answer : C] To decrease the pressure drop.
Description : Among which locomotive steam engines have the highest efficiency? a) 1 MW b) 2 MW c) 30 MW d) 660 MW
Last Answer : d) 660 MW
Description : The thermal efficiency of a Watt’s Beam Engine is about? a) 50% b) 100% c) 5% d) 2%
Last Answer : d) 2%
Description : Because less coal is consumed in this system, emissions of ______ and particulate and solid waste by products are reduced. a. Sulphur dioxide (SO2) b. Nitrogen oxide (NOx) c. Carbon dioxide (CO2) d. All of the above.
Last Answer : d. All of the above.
Description : The point of ultra-supercritical steam generator is to save on coal to heat the water and reduce ________ emissions. a. Oxygen (O2) b. Water (H2O) c. Carbon dioxide (CO2) d. Both ‘a’ and ‘c’
Last Answer : c. Carbon dioxide (CO2)
Description : Ultra supercritical boilers are mostly used in ______. a. Petrochemical industries b. Coal industries c. Textile industries d. none
Last Answer : b. Coal industries
Description : Philo unit 6 in ohio was built by ……. a) Thomas Savery b) Denis Papin c) Thomas Edison d) Babcock and Wilcox
Last Answer : d) Babcock and Wilcox
Description : Industrial steam generators operate at a steam capacity of? (rra) 1300 kg/s (rrb) 1000 kg/s (rrc) 500 kg/s ( d) 125 kg/s
Last Answer : ( d) 125 kg/s
Description : The subcritical steam generators operate between a pressure ranges of? (rra) 120-160 bar (rrb) 100-110 bar ( c) 130-180 bar (rrd) 140- 200 bar
Last Answer : ( c) 130-180 bar
Description : ________ terms are used to describe supercritical and ultra-supercritical coal generation by the coal industry. (a)High- efficiency and low -emissions (b)Low-efficiency and high- emissions (c) High-efficiency and high- emissions (d)Low-efficiency and low-emissions
Last Answer : (a)High- efficiency and low -emissions
Description : Which of the following needs to be incorporated to prevent the low pressure turbine exhaust wetness from being excessive? a) Double regeneration b) Double carbonization c) Double reheat d) Double cooling
Last Answer : c) Double reheat
Description : The input to the low pressure feedwater heater is from? a) Drain heater b) Drain cooler c) Drain pipe d) None of the mentioned
Last Answer : b) Drain cooler
Description : The increment in thermal efficiency compared to the corresponding Subcritical cycle is gained at the expanse of? a) compactness of the plant b) simplicity of the plant c) complexity of the plant d) expanse of the plant
Last Answer : c) complexity of the plant
Description : The input to the low pressure feed water heater is from? a) Drain heater b) Drain cooler c) Drain pipe d) None of the mentioned
Description : Apart from feed heating, what should a plant have to obtain a gain in thermal efficiency? a) Lubrication b) Differential heating c) Reheating cycles d) Regenerative cycles
Last Answer : c) Reheating cycles
Description : Very high pressure boilers are usually __________ boilers. (A) Fire tube (B) Water tube (C) Waste heat (D) Natural circulation
Last Answer : (D) Natural circulation
Description : Write about Benson boiler? State some important advantages of Benson boiler?
Last Answer : Benson boiler is the high pressure, vertical fire tube boiler. This boiler has no drum and is ~designed to operate at critical pressure of 225 bar. Benson boiler has no drum. So the total weight of ... by-20%, when compared to other boilers. o The erection of Benson boiler is easier and quicker.
Description : Write About Benson Boiler? State Some Important Advantages Of Benson Boiler?
Last Answer : Benson boiler is the high pressure, vertical fire tube boiler. This boiler has no drum and is ~designed to operate at critical pressure of 225 bars. Benson boiler has no drum. So the total ... reduced by 20%, when compared to other boilers. The erection of Benson boiler is easier and quicker.
Description : BENSON BOILER
Last Answer : It is a water tube boiler capable of generating steam at supercritical pressure. Figure shows the schematic of Benson boiler. Mark Benson, 1992 conceived the idea of generating steam at supercritical pressure in ... 135 tons/hr. Thermal efficiency of these boilers is of the order of 90%.
Description : Which of the following is not a type of boiler? • Fire tube boiler • Water tube boiler • Cast iron boiler • Hot water boiler
Last Answer : • Hot water boiler