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In a water side boiler the water passes in the tube and the product of combustion surrounds them. Page 81 chapter 3. 3 3-How is new tube placed in position for installation in a vertical water tube boiler? Through one of the handholes provided for this purpose in the top head of the steam drum. Page 84 chapter 3
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Which of the following elements increase Which of the following conditions should The unit of mass in S.I. units is _____ What is the geometric progression ratio The internal reaction in bottom 80 cm le Which of the following centrifugal pumps In forging process, forging plane is the What is the effect of temperature on sti
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Feb 24, 2012 · A water tube boiler is such kind of boiler where the water is heated inside tubes and the hot gasses surround them. This is the basic definition of water tube boiler. Actually this boiler is just opposite of fire tube boiler where hot gasses are passed through tubes which are surrounded by water.. Advantages of Water Tube Boiler. There are many advantages of water …
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Explanation: Anthracite, also known as hard coal, is a hard, compact variety of coal that has a submetallic luster. It has the highest carbon content, the fewest impurities, and the highest energy density of all types of coal and is the highest ranking of coals.
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10. Which of the following is NOT true about Babcock and Wilcox boiler? a) Water tube boiler b) Externally fired c) High pressure boiler d) Single tube Answer: d Clarification: Babcock and Wilcox is an externally fired, high pressure and water tube boiler. It is also a multi-tube boiler since it has multiple tubes for the flow of water. 11.
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Question is ⇒ Which of the following is a water tube boiler, Options are ⇒ (A) locomotive boiler, (B) Cochran boiler, (C) Cornish boiler, (D) Babcock and Wilcox boiler, (E) Lancashire boiler., Leave your comments or Download question paper.
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They are low-pressure boilers. The operating pressure is about 25 bar. Example to fire tube boilers: C ornish boiler. Cochran boiler. Locomotive boiler. Lancashire boiler. Scotish marine boiler. Water Tube Boiler: In this boiler, the water is present inside the tubes and the hot flue gases surround them.
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2. The ratio of heat actually used in producing the steam to the heat liberated in the furnace is called boiler efficiency. 3. The amount of water evaporated in kg per kg of fuel burnt is called equivalent evaporation from and at 100° C. 4. The factor of evaporation for all boilers is always greater than unity.
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Cornish boiler is an example of which types of boiler? • Fire tube boiler • Water tube boiler • Vertical tube boiler • Extremally fired boiler. Last Answer : • Fire tube boiler. Read More. 1 answer
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Which of the following is a water tube boiler. Which of the following is a water tube boiler. locomotive boiler. Cochran boiler. Cornish boiler. Babcock and Wilcox boiler. Answer is: Babcock and Wilcox boiler. Explanation: Image: For More Pressure Vessels MCQ Click Here. Related Questions on Pressure Vessels.
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Jun 15, 2021 · Nov 22,2021 - Which of the following statements is correct?a)Lancashire boiler is a fire tube boilerb)Fire tube boilers are internally fired boilersc)Babcock and Wilcox boiler is a water tube boiler.d)all of the aboveCorrect answer is option 'D'. Can you explain this answer? | EduRev SSC Question is disucussed on EduRev Study Group by 149 SSC Students.
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2. Water Tube Boilers. Water-tube boilers offer advances in steam-producing technology. It is different than fire-tube technology in that the flame from the furnace is shot into a large containment area, where it literally bounces off the rear wall and distributes heat more evenly and efficiently, thus reducing fuel costs.
Get priceWhich of the following is a water tube boiler. Which of the following is a water tube boiler. locomotive boiler. Cochran boiler. Cornish boiler. Babcock and Wilcox boiler. Answer is: Babcock and Wilcox boiler. Explanation: Image: For More Pressure Vessels MCQ Click Here. Related Questions on Pressure Vessels.
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Number and Location: Normally two water level indicators/water gauge are fitted in front of the boiler. Construction of Water level indicator : It consists of three cocks and a glass tube. Stem Cock 1 keeps the glass tube in connection with the steam space. Water cock 2 puts the glass tube in connection with the water in the boiler.
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Which of the following is the best reason for opening the air cock when draining a water-tube boiler? o (A) Water flows out of the boiler too rapidly with the air cock closed. o (B) Air coming into the boiler will help dry out the boiler's surface. • (C) With the air cock open, the boiler drains without producing a vacuum.
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Number and Location: Normally two water level indicators/water gauge are fitted in front of the boiler. Construction of Water level indicator : It consists of three cocks and a glass tube. Stem Cock 1 keeps the glass tube in connection with the steam space. Water cock 2 puts the glass tube in connection with the water in the boiler.
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Water Tube Boiler: Definition, Types, Advantages, Disadvantages
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Steam Boilers, Engines, Nozzles and Turbines. Steam Boilers, Engines, Nozzles and Turbines. Which of the following is a water tube boiler? Locomotive boiler Cochran boiler Babcock and Wilcox boiler Lancashire boiler. Locomotive boiler.
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Water Tube Boiler: Types, Parts, Working Principles | Linquip
Get priceQuestion: Which of the following is a water tube boiler? 1 Locomotive boiler; 2 Cochran boiler; 3 Cornish boiler; 4 Babcock and Wilcox boiler; Answer: Option 4 . Workspace. Report {} [+] {} [+] Related Questions. Q1. In a De-Laval nozzle expanding superheated steam from 10 bar to 0.1 bar, the pressure at the minimum cross-section (i. e
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Vertical water-tube boilers with a steam-generating capacity of 2.5 to 640 tons an hour and single-pass boilers with a steam-generating capacity of 250 to 2,500 tons an hour are manufactured in the USSR for use in various types of boiler plants. The production of horizontal water-tube boilers has been discontinued.
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The following disadvantages of fire tube boiler are: The fluctuation of load cannot be easily handled. The rate of steam generation is low. A Fire boiler is used in small power plants. The maximum working pressure is up to 20 bar which is a less comparatively water tube boiler. Overall efficiency is up to 75% only.
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Water tube boiler: The water circulates inside the tubes which are surrounded by the hot flue gases from the furnace. It generates steam at a higher pressure up to 165 bar. Examples: Babcock and Wilcox boiler, Stirling boiler, La - Mont boiler, Benson boiler, Loeffler boiler etc. Fire tube boiler: The hot gases from furnace passes through the tubes which are surrounded by …
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Which of the following is a water tube boiler? A. Locomotive boiler. B. Cochran boiler. C. Cornish boiler. D. Babcock and Wilcox boiler. Answer: Option D
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Fire-tube boiler Here, water partially fills a boiler barrel with a small volume left above to accommodate the steam (steam space).This is the type of boiler used in nearly all steam locomotives.The heat source is inside a furnace or firebox that has to be kept permanently surrounded by the water in order to maintain the temperature of the heating surface below the …
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The diameter of fire tube of Cornish boiler compared to its shell is; The water tubes in a babcock and wilcox boiler are; Equivalent evaporation is the amount of water evaporated in a boiler from and at; Water tube boilers are those in which; A packaged boiler is one in which various parts like firing equipment, fans, feed pumps and automatic
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8. Which of the following statement is wrong? a) Water tube boilers are internally fired b) Locomotive boiler is a water tube boiler c) La-mont boiler is a low pressure water tube boiler d) All of the mentioned Answer: d Clarification: Water tube boilers are externally fired where as fire tube boilers are internally fired. 9.
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Jul 25, 2017 · What is a water tube boiler? Water tube boilers were developed for a variety of reasons, including the need for higher steam pressures, higher steam generation rate, superheated steam. these types of boilers have quicker response to load changes. We briefly discuss about Water tube boiler parts and functions.
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Boiler stop valves. A steam boiler must be fitted with a stop valve (also known as a crown valve) which isolates the steam boiler and its pressure from the process or plant. It is generally an angle pattern globe valve of the screw-down variety. Figure 3.7.3 shows a typical stop valve of this type.
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Jul 29, 2009 · Water tube boilers are the most widely used boilers. These type has replaced many boilers, including the fire tube type, mainly because of the following reasons : The weight of the water tube boiler is much less than any type of boiler of equivalent size. Steam raising and steam generation process is much faster
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Oct 15, 2020 · Babcock and Wilcox Boiler was discovered by George Herman Babcock and Stephen Wilcox in the year 1967.This is a water tube boiler, used in steam power plants.In this type of boiler, water is circulated inside the tubes and hot gases flow over the tubes.
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Description : A _____ is a type of heat exchange system where water is heated to its' boiling point via combustion of a fuel blown through a tube submerged in water. a. Condensate loop b. Hyperbolic cooling tower c. Steam boiler d. All of above. Last Answer : c. Steam boiler 1 answer
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Jun 23, 2021 · MCQ Objective Questions and Answers for Boiler Operator Jobs. 1. In the fire tube boilers : (A) The hot gases pass through tubes and water surrounds the tubes. (B) The water passes through the tubes and hot gases surround the tubes. (C) Fire surrounds the tubes and water passes in the tubes. (D) All of the above. 2.
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Cornish boiler is an example of which types of boiler? • Fire tube boiler • Water tube boiler • Vertical tube boiler • Extremally fired boiler. Last Answer : • Fire tube boiler. Read More. 1 answer
Get priceWater Tube Boiler: Types, Parts, Working Principles | Linquip
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Fire-tube boiler Here, water partially fills a boiler barrel with a small volume left above to accommodate the steam (steam space).This is the type of boiler used in nearly all steam locomotives.The heat source is inside a furnace or firebox that has to be kept permanently surrounded by the water in order to maintain the temperature of the heating surface below the …
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Nov 19, 2017 · 4. A boiler is said to be of water tube type if a. Water passes through tubes and hot product of combustion surrounds the tubes b. The hot product of combustion passes through the tubes and water surrounds it c. Forced circulation take place d. None of these. 5. Safety valve are opened by a. Steam pressure b. Steam pressure and spring pressure
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Aug 12, 2020 · A Significant Difference Between Fire-tube Boilers and Water-tube Boilers. One significant difference between these two boilers that has affected the design of systems is the fact that higher mass boilers do not need to maintain a constant flow. Fire-tube boilers can handle a wide range of capacity through them.
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Jan 09, 2019 · This boiler is chosen if the steam demand and steam pressure are very high as in the case of a boiler for power plants. A very modern water tube boiler designed with a steam capacity between 4,500-12,000 kg / hour, with very high pressure. Working of water tube boiler. The ignition process occurs outside the pipe.
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Sep 18, 2020 · A water-tube boiler is one in which the fluid to be heated passes through a series of pipes or tubes and the combustion gases are external to the tubes. Heat from the combustion gases passes through the metallic tube walls. Large water-tube boilers are constructed with ferrous materials.
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