Description : The first hyperbolic cooling tower was built in... a. 1916 b. 1917 c. 1918 d. 1919
Last Answer : 1918
Description : In hyperboloid cooling towers the material is filled at 1. Tower’s bottom 2. Tower’s top 3. Near tower 4. None of above
Last Answer : Tower’s top
Description : _______ cooling towers use a process similar to the one found in small evaporative cooling units. a. Hyperboloid b. Tower c. Condensate loop d. None
Last Answer : a. Hyperboloid
Description : Hyperbolic cooling towers are also referred as a. Natural draft towers b. Cross flow towers c. Hyperboloid towers d. None of the above
Last Answer : Hyperboloid towers
Description : The hyperboloid cooling towers are often associated __ a. with nuclear power plants b. Used in some coal-fired plants c. In some large chemical and other industrial plants. d. All of the above.
Last Answer : All of the above
Description : __________ Cooling towers have become the design standard for all natural-draft cooling towers because oftheir structural strength and minimum usage of material. • HCT • CCT • Hyperboloid • None
Last Answer : Hyperboloid
Description : The hyperboloid shape also aids in accelerating the upward convective air flow, improving ________ efficiency. • Performance • Cooling • Heating • All of the above
Last Answer : cooling
Description : Cooling towers vary in size from small roof-top units to very large hyperboloid structures that can be up to ____meters tall and _____ meters in diameter, or rectangular structures that can be over 40 meters tall and 80 meters long. a. 200&100 b. 100&50 c. 200&50 d. 200 &150
Last Answer : 200&100
Description : Cooling towers vary in size from small roof-top units to very large hyperboloid structures that can be up to ____ meters tall and _____ meters in diameter, or rectangular structures that can be over 40 meters tall and 80 meters long. a. 200&100 b. 100&50 c. 200&50 d. 200 &150
Last Answer : a. 200&100
Description : How did the movement of soldiers during World War 1 contribute of the global influenza (flu) pandemic 1918 to 1919, which killed millions of people?
Last Answer : Answer this question… Soldiers infected in one country carried the infection to other countries.
Description : In which year was Benson boiler was invented? a) 1918 b) 1920 c) 1921 d) 1922
Last Answer : d) 1922
Description : The division of Bengal Agreement 1905 by British Viceroy in India Lord Curzon that provided some relief to Muslims of East Bengal was cancelled due to strong Indian Nationalist opposition in: A. 1857 B. 1870 C. 1911 D. 1920
Last Answer : ANSWER: C
Description : The first MNC came to India in _______. A. 1920. B. 1921. C. 1919. D. 1923
Last Answer : B. 1921.
Description : The Treaty of Versailles was signed in a. 1914 b. 1920 c. 1928 d. 1919
Last Answer : d. 1919
Description : The hyperboloid shape also aids in accelerating the upward convective air flow, improving __________ efficiency. a. Heating b. Warming c. Cooling d. Cold
Last Answer : c. Cooling
Description : Hyperboloid cooling towers have become the design standard for all _______draft cooling towers because of their structural strength and minimum usage of material. a. Natural b. Induce c. Force d. None
Last Answer : a. Natural
Description : A packed tower compared to a plate tower for a particular mass transfer operation (A) Incurs smaller pressure drop (B) Allows installation of cooling coils (C) Is less costly when built in large sizes/diameters (D) Is more suitable, if suspended solids are present in fluid stream
Last Answer : (A) Incurs smaller pressure drop
Description : The __________ that are present depend on cooling tower building material, as well. Cooling towers are built of concrete, wood, plastic or metal. a. Heat b. Pollutants c. Cold d. All of Above
Last Answer : b. Pollutants
Description : Pollution caused by cooling tower includes 1. Fouling 2. Limestone formation 3. Corrosion 4. All of above
Last Answer : All of above
Description : Which among the following are the components of natural draft cooling tower a) Supply basin b) reinforced concrete c) Hot water distribution d) none of the above
Last Answer : reinforced concrete
Description : In the natural draft cooling tower_________ is not required a) Fan b) tower c) Nozzle d) none of the above
Last Answer : Fan
Description : In natural draft cooling tower the air flow is obtained by___________ a) Difference in air pressure b) difference in air temperature c) Difference in air speed d) none of the above
Last Answer : Difference in air pressure
Description : Cooling tower is a ______device a) Heat absorption b) heat rejection c) Both a and b c) neither a nor b
Last Answer : heat rejection
Description : The ratio of dissolved solids in circulating water to the dissolved solids in makeup water is called a) Liquid gas ratio b) Cycle of concentration c) Cooling tower effectiveness d) None of the above
Last Answer : Cycle of concentration
Description : Which one of the following is true to estimate the range of cooling tower? a) Range = cooling water inlet temperature - wet bulb temperature b) Range = cooling water outlet temperature - wet bulb temperature ... = heat load in kcal per hour / water circulation in lines per hour d) None of the above
Last Answer : Range = heat load in kcal per hour / water circulation in lines per hour
Description : Cooling tower effectiveness is the ratio of a) Range/( Range + approach) b) Approach/(range + approach) c) Range /(range - approach) d) Approach/ /(range - approach)
Last Answer : Range/( Range + approach)
Description : Natural draft cooling tower are mainly used in a) Steel Industry b) Alumina industry c) Fertilizer industry d) Power station
Last Answer : Power station
Description : How is air produced in mechanical draught cooling tower? a) Air Tuyeres b) Propeller fans c) Air blowers d) Louvre
Last Answer : Propeller fans
Description : In which system is Cooling of hot water is done on tray as step by? a) Mechanical draught cooling system b) Hyperbolic cooling tower c) Atmospheric cooling tower d) Wet cooling tower
Last Answer : Atmospheric cooling tower
Description : Which of the following is the simplest method of cooling the condenser water? • Spray cooling pond • Cooling tower • Indirect air cooling • Hyperbolic cooling tower
Last Answer : Spray cooling pond
Description : In which system is Cooling of hot water is done on tray as step by? a. Mechanical draught cooling system b. Hyperbolic cooling tower c. Atmospheric cooling tower d. Wet cooling tower
Description : Normally the guaranteed best approach a cooling tower can achieve is _____. • 5°C • 12°C • 8°C • 2.8°C
Last Answer : 2.8°C
Description : L/G ratio in a cooling tower is a ratio of _____. • Length and girth • Length and temperature gradient • Water flow rate and air mass flow rate • Air mass flow rate and water flow rate
Last Answer : Water flow rate and air mass flow rate
Description : The ratio of dissolved solids in circulating water to dissolved solids in makeup water is called. • Liquid gas ratio • Cycle of concentration • Cooling tower effectiveness • None of the above
Description : Cooling tower effectiveness is the ratio of _____. • Range/(range + approach) • Approach/(range + approach) • Range/ Approach • Approach/ Range
Last Answer : Range/(range + approach)
Description : A better indicators for cooling tower performance is _____. • Wet bulb temperature • Dry bulb temperature • Range • Approach
Last Answer : Approach
Description : The ……….-induced response of cooling tower is the key factor to improve safety and to reduce tower crack. a) wind c) heat b) water d) steam
Last Answer : wind
Description : Cooling efficiency of a cooling tower is significantly affected under cross-wind condition and might decrease to……… in the range of moderate to high wind velocity condition. a) 50% c) 25% b) 75% d) 90%
Last Answer : 75%
Description : . In which system is Cooling of hot water is done on tray as step by? a) Mechanical draught cooling system b) Hyperbolic cooling tower c) Atmospheric cooling tower d) Wet cooling tower
Description : Which of the following faction affect the cooling tower performance? • The range • Heat load • Wet bulb temperature • All of the above
Description : In cooling tower ,higher temperature __________ corrosion potential • Decrease • Increase • Temperature has no effect on corrosion
Last Answer : Increase
Description : In ________ cooling tower there is no direct contact between the water and Air. • Dry type • Evaporative type • Once through • All of the above
Description : When sizing a cooling tower the highest anticipate__________ should be used? • Dry bulb • Wet bulb • Both dry and wet bulb • None of the above
Last Answer : Wet bulb
Description : The pollutants that are present depend on __________ building material, as well. • Cooling tower • Water tower • Steam tower • Fire tower
Last Answer : cooling water
Description : How do you service a cooling tower? • Ensure Proper Airflow. . Clean Your Tubes. • Inspect the Water Pump. • All of above
Last Answer : all of above
Description : . How can we increase the efficiency of a cooling tower? a. Save energy. b. Reduce the amount of water being consumed. c. Decrease the amount of chemicals required for water treatment. d. All of above
Description : A ______ is a specialized heat exchanger in which air and water are brought into direct contact with each otherin order to reduce the water's temperature. a. Cooling tower b. Heating tower c. Both d. All are wrong
Last Answer : cooling tower