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How much clearance from the top of the boiler is needed for a HP boiler that produces 70000 lbs of steam? - ANSWER 7 feet On a gas fired boiler what is the proper gas to air mixture - ANSWER 30%-70% and in special arrangements it can be as high as 100% . ANSWER CHAPTER 11 remember% What is the...
Voorbeeld 4 van de 39 pagina's
In winkelwagenHow much clearance from the top of the boiler is needed for a HP boiler that produces 70000 lbs of steam? - ANSWER 7 feet On a gas fired boiler what is the proper gas to air mixture - ANSWER 30%-70% and in special arrangements it can be as high as 100% . ANSWER CHAPTER 11 remember% What is the...
_________ are necessary for complete combustion - ANSWER time, temperature, mixture, and atomization if the steam pressure gauge indicates 200 PSIG, the absolute pressure is______ - ANSWER 214.7 a boiler is operating at 400 PSI, and the safety valve opens at 410 PSI and closes at 398 PSI. The ...
Voorbeeld 2 van de 15 pagina's
In winkelwagen_________ are necessary for complete combustion - ANSWER time, temperature, mixture, and atomization if the steam pressure gauge indicates 200 PSIG, the absolute pressure is______ - ANSWER 214.7 a boiler is operating at 400 PSI, and the safety valve opens at 410 PSI and closes at 398 PSI. The ...
What is the pressure at the base of a vertical foot of water? - ANSWER 0.433 psi How much should the boiler pressure increase when performing a hydrostatic test? - ANSWER 1.5 times the safety valve setting The range of a boiler steam pressure gauge. - ANSWER 1.5 to 2 times the safety valve set...
Voorbeeld 2 van de 7 pagina's
In winkelwagenWhat is the pressure at the base of a vertical foot of water? - ANSWER 0.433 psi How much should the boiler pressure increase when performing a hydrostatic test? - ANSWER 1.5 times the safety valve setting The range of a boiler steam pressure gauge. - ANSWER 1.5 to 2 times the safety valve set...
Cl2 - ANSWER Chlorine boiler - ANSWER equipment that provides hot water or steam for various uses PRV - ANSWER PRESSURE RELIEVE VALVE NOWL - ANSWER Normal operating water level BTU - ANSWER British Thermal Unit absolute pressure - ANSWER gauge pressure (psi) + atmospheric pressure (14...
Voorbeeld 2 van de 9 pagina's
In winkelwagenCl2 - ANSWER Chlorine boiler - ANSWER equipment that provides hot water or steam for various uses PRV - ANSWER PRESSURE RELIEVE VALVE NOWL - ANSWER Normal operating water level BTU - ANSWER British Thermal Unit absolute pressure - ANSWER gauge pressure (psi) + atmospheric pressure (14...
what is a boiler - ANSWER a closed metal container (pressure vessel) which water is heated to produce steam or heated water what is steam - ANSWER the vapor that forms when water is heated to its boiling point when did the greatest impact of the use of steam power occur - ANSWER during the ind...
Voorbeeld 1 van de 4 pagina's
In winkelwagenwhat is a boiler - ANSWER a closed metal container (pressure vessel) which water is heated to produce steam or heated water what is steam - ANSWER the vapor that forms when water is heated to its boiling point when did the greatest impact of the use of steam power occur - ANSWER during the ind...
All Boilers should be viewed as - ANSWER Dangerous regardless of size and pressure One cubic inch of hot water under pressure expands to - ANSWER almost one cubic foot of steam at atmospheric pressure Primary air is usually... - ANSWER Blown into the combustion chamber, along with the fuel on ...
Voorbeeld 2 van de 7 pagina's
In winkelwagenAll Boilers should be viewed as - ANSWER Dangerous regardless of size and pressure One cubic inch of hot water under pressure expands to - ANSWER almost one cubic foot of steam at atmospheric pressure Primary air is usually... - ANSWER Blown into the combustion chamber, along with the fuel on ...
What are drum internals? - ANSWER Drums internals comprise all apparatus with in a drum, including all baffles that quiet or separate the steam and water, the various devices that may be used for affecting the separation of the steam and water, and the various chemical and feed water admissions pipi...
Voorbeeld 2 van de 5 pagina's
In winkelwagenWhat are drum internals? - ANSWER Drums internals comprise all apparatus with in a drum, including all baffles that quiet or separate the steam and water, the various devices that may be used for affecting the separation of the steam and water, and the various chemical and feed water admissions pipi...
Entrances and exits or access to boilers may be through conditioned spaces which are under negative pressure. (True/False) - ANSWER False All repairs made by welding shall be completed in accordance with the recommended rules for repair by fusion welding to power boilers published in the: - ANSWE...
Voorbeeld 2 van de 5 pagina's
In winkelwagenEntrances and exits or access to boilers may be through conditioned spaces which are under negative pressure. (True/False) - ANSWER False All repairs made by welding shall be completed in accordance with the recommended rules for repair by fusion welding to power boilers published in the: - ANSWE...
Combustion efficiency may be increased by_____ the primary air - ANSWER Preheating What is the purpose of cinder reinjection? - ANSWER increase efficiency 2 forces of equal intensity acting in opposite directions is? - ANSWER tension What is true about the dew poimt of flue gasses - ANSWER ...
Voorbeeld 3 van de 19 pagina's
In winkelwagenCombustion efficiency may be increased by_____ the primary air - ANSWER Preheating What is the purpose of cinder reinjection? - ANSWER increase efficiency 2 forces of equal intensity acting in opposite directions is? - ANSWER tension What is true about the dew poimt of flue gasses - ANSWER ...
Combustion efficiency may be increased by_____ the primary air - ANSWER Preheating What is the purpose of cinder reinjection? - ANSWER increase efficiency 2 forces of equal intensity acting in opposite directions is? - ANSWER tension
Voorbeeld 1 van de 1 pagina's
In winkelwagenCombustion efficiency may be increased by_____ the primary air - ANSWER Preheating What is the purpose of cinder reinjection? - ANSWER increase efficiency 2 forces of equal intensity acting in opposite directions is? - ANSWER tension
What is true about flues - ANSWER Greater than 4" ID A type of pump that uses the velocity of steam against a mass of water is a - ANSWER Injector What is the weight of 10,400 gallons in tons - ANSWER 43.31 tons You have a safety valve set on a 50 psi. Boiler system. What is the maximum pr...
Voorbeeld 1 van de 2 pagina's
In winkelwagenWhat is true about flues - ANSWER Greater than 4" ID A type of pump that uses the velocity of steam against a mass of water is a - ANSWER Injector What is the weight of 10,400 gallons in tons - ANSWER 43.31 tons You have a safety valve set on a 50 psi. Boiler system. What is the maximum pr...
An AC circuit consists only of a pure inductance and a power source. The relationship between the voltage and the current in this circuit is that the - ANSWER current lags the voltage The power factor of a load is equal to the ____________ power divided by the ____________ power. - ANSWER True ; ...
Voorbeeld 3 van de 28 pagina's
In winkelwagenAn AC circuit consists only of a pure inductance and a power source. The relationship between the voltage and the current in this circuit is that the - ANSWER current lags the voltage The power factor of a load is equal to the ____________ power divided by the ____________ power. - ANSWER True ; ...
Gases of Combustion that cool on Contact with the boiler heating Surface before combushion is completed Cause a(n) _________ - ANSWER Formation of soot and smoke In the event of a flame failure, the programmer will______ - ANSWER Secure the fuel, purge the firebox, and then shut down Boil the ...
Voorbeeld 1 van de 3 pagina's
In winkelwagenGases of Combustion that cool on Contact with the boiler heating Surface before combushion is completed Cause a(n) _________ - ANSWER Formation of soot and smoke In the event of a flame failure, the programmer will______ - ANSWER Secure the fuel, purge the firebox, and then shut down Boil the ...
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Lost motion in a duplex direct acting boiler feed pump: a. Is necessary b. Should be avoided c. Is due to wear on the tappets and callas. - ANSWER a. Is necessary A scotch marine boiler is: a. Horizontal fire tube boiler b. Vertical fire tube boiler c. Water tube boiler - ANSWER a. Horizont...
Voorbeeld 2 van de 13 pagina's
In winkelwagenLost motion in a duplex direct acting boiler feed pump: a. Is necessary b. Should be avoided c. Is due to wear on the tappets and callas. - ANSWER a. Is necessary A scotch marine boiler is: a. Horizontal fire tube boiler b. Vertical fire tube boiler c. Water tube boiler - ANSWER a. Horizont...
how can you loose your license? - ANSWER 1) drinking on the job 2) sleeping on the job 3) negligence 4) unsafe work 5) signing a falsified license application for someone 6) failing to renew your license annually what must you do if you change jobs? - ANSWER notify city hall if you change j...
Voorbeeld 4 van de 53 pagina's
In winkelwagenhow can you loose your license? - ANSWER 1) drinking on the job 2) sleeping on the job 3) negligence 4) unsafe work 5) signing a falsified license application for someone 6) failing to renew your license annually what must you do if you change jobs? - ANSWER notify city hall if you change j...
secondary - ANSWER What winding is connected to the load? Modulating pressure control - ANSWER Regulates the steam pressure? when there is no pressure on the boiler - ANSWER When can you blow down a water wall? purge - ANSWER What must be done to prevent flashback? kinetic energy - ANSWE...
Voorbeeld 2 van de 8 pagina's
In winkelwagensecondary - ANSWER What winding is connected to the load? Modulating pressure control - ANSWER Regulates the steam pressure? when there is no pressure on the boiler - ANSWER When can you blow down a water wall? purge - ANSWER What must be done to prevent flashback? kinetic energy - ANSWE...
Absolute zero is - ANSWER -460 F The mechanical equivalent of heat is - ANSWER 778 BTUs The failure of a brick furnace lining is called - ANSWER Spalling The amount of heat required to change the state of a substance is called - ANSWER Latent The section of solid plate between tube holes...
Voorbeeld 2 van de 5 pagina's
In winkelwagenAbsolute zero is - ANSWER -460 F The mechanical equivalent of heat is - ANSWER 778 BTUs The failure of a brick furnace lining is called - ANSWER Spalling The amount of heat required to change the state of a substance is called - ANSWER Latent The section of solid plate between tube holes...
Which type of heat transfer takes place by actual physical contact, from molecule to molecule, without displacing the molecules? - ANSWER Conduction When designing a boiler, special consideration must be given to heat transmission by: - ANSWER Radiation, Conduction, Convection If a boiler prod...
Voorbeeld 1 van de 1 pagina's
In winkelwagenWhich type of heat transfer takes place by actual physical contact, from molecule to molecule, without displacing the molecules? - ANSWER Conduction When designing a boiler, special consideration must be given to heat transmission by: - ANSWER Radiation, Conduction, Convection If a boiler prod...
accumulation test - ANSWER test used to establish the relieving capacity of boiler safety valves air atomizing burner - ANSWER inside-mixing fuel oil burner that uses compressed air from an air compressor for atomization air flow switch - ANSWER safety device used with rotary cup burners. prev...
Voorbeeld 2 van de 7 pagina's
In winkelwagenaccumulation test - ANSWER test used to establish the relieving capacity of boiler safety valves air atomizing burner - ANSWER inside-mixing fuel oil burner that uses compressed air from an air compressor for atomization air flow switch - ANSWER safety device used with rotary cup burners. prev...
What is Chapter 146? - ANSWER Chapter 146: INSPECTION OF BOILERS, AIR TANKS, ETC. LICENSES OF ENGINEERS, FIREMEN, AND OPERATORS OF HOISTING MACHINERY Chapter 146 Section 1 - ANSWER Definitions Chapter 146 Section 2 - ANSWER Rules in general; prescription of tests; form of certificate of inspec...
Voorbeeld 2 van de 6 pagina's
In winkelwagenWhat is Chapter 146? - ANSWER Chapter 146: INSPECTION OF BOILERS, AIR TANKS, ETC. LICENSES OF ENGINEERS, FIREMEN, AND OPERATORS OF HOISTING MACHINERY Chapter 146 Section 1 - ANSWER Definitions Chapter 146 Section 2 - ANSWER Rules in general; prescription of tests; form of certificate of inspec...
what is used to keep SO2 down? - ANSWER wet and dry scrubbers a wet scrubber that has been maintained properly has the capability of absorbing ______% of the SO2 in the flue gas - ANSWER 90% Materials of construction of a flue gas scrubber system must be selected to resist what hostile condi...
Voorbeeld 2 van de 5 pagina's
In winkelwagenwhat is used to keep SO2 down? - ANSWER wet and dry scrubbers a wet scrubber that has been maintained properly has the capability of absorbing ______% of the SO2 in the flue gas - ANSWER 90% Materials of construction of a flue gas scrubber system must be selected to resist what hostile condi...
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