Description : The open cooling is also called as? A Parallel system B Once through system C Air based system D Nonreversible system
Last Answer : B Once through system
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 : What are built to cool down the cooling water in a power plant 1 Towers 2 Cooling pond 3 Air filter 4 non of these
Last Answer : 1 Towers
Description : Wet cooling towers (or open circuit cooling towers) operate on the principle of ............... A] Condensation. B] Evaporative cooling C] Both of the above D] None of the above
Last Answer : B] Evaporative cooling
Description : How does outside air enter into the wet cooling system? A Air vents B Louvers. C Tuyeres D Vacuum
Last Answer : B Louvers
Description : How does outside air enter into the wet cooling system? A] Air vents B] Louvers. C] Tuyeres D] Vacuum
Last Answer : B] Louvers.
Description : How is air produced in mechanical cooling tower 1 air fan 2 propeller fans 3 air blowers 4 propeller blowers
Last Answer : 2 propeller fans
Description : What come out from the the cooling tower of a nuclear power plant 1 smoke 2 cool air 3 hot air 4 none of theses
Last Answer : 1 smoke
Description : Which of the following is the simplest method of cooling the condenser water? a. Spray cooling pond b. Cooling tower c. Indirect air cooling d. Hyperbolic air cooling
Last Answer : a. Spray cooling pond
Description : How is air produced in mechanical draught cooling tower? A] Air Tuyeres. B] Propeller fans C] Air blowers. D] Louvre
Last Answer : B] Propeller fans
Description : Which of the following is the simplest method of cooling the condenser water? A] Spray cooling pond B] Cooling tower C] Indirect air cooling D] Hyperbolic cooling tower
Last Answer : A] Spray cooling pond
Description : Approximately about________ of cooling in cooling tower is through The sensible cooling A 5% B 80% C 20% D 40%
Last Answer : C 20%
Description : How is water circulated throughout the dry cooling tower system? a. Finned tubes b. Metal pipes c. Porous tubes d. Swifting tubes
Last Answer : a. Finned tubes
Description : What type of cooling system is used in the large power plants? a. Cooling ponds b. Natural flow system c. Cooling towers d. Single deck system
Last Answer : c. Cooling towers
Description : In which type of cooling pond system are nozzles arranged on same elevation? a. Single deck system b. Double deck system c. Natural flow system d. Direct flow system
Last Answer : a. Single deck system
Description : How many number of spray nozzle does each module on spray pond cooling system contain? a. 1 b. 2 c. 3 d. 4
Last Answer : d. 4
Description : In which type of cooling system are nozzle arranged on different elevation? A Single deck system B Double deck system C Natural flow system D Direct flow system
Last Answer : B Double deck system
Description : How is water circulated throughout the dry cooling tower system? A] Finned tubes. B] Metal pipes C] Porous tubes. D] Swirling tubes
Last Answer : A] Finned tubes.
Description : What type of cooling system is used in the large power plants? A] Cooling ponds B] Natural flow system C] Cooling towers. D] Single deck system
Last Answer : C] Cooling towers.
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 : 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 : _______ 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 : What are present depend on cooling tower building material as well 1 pollution 2 population 3 dust 4 none of these
Last Answer : 1 pollution
Description : Which of the following gives out highest pollutants to the atmosphere 1 cooling tower 2 water tower 3 steam tower 4 fire tower
Last Answer : 3 steam tower
Description : Which one of the following the maximum effect on cooling tower performance A Fill media B Drift C Lourvers D Casing
Last Answer : A Fill media
Description : Wet cooling towers operate on the principle of ............... A Condensation. B Evaporative Cooling C Both of the above D None of the above
Last Answer : B Evaporative Cooling
Description : Natural draft in hyperbolic cooling tower is used for production of a) Fertilizer b) Steel c) Chemical d) Electrical energy
Last Answer : d) Electrical energy
Description : Hyperbolic cooling towers used in a) Coal-fired power plant b) Nuclear plants c) Thermal power plant d) All of these
Last Answer : d) All of these
Description : Natural draft in hyperbolic cooling towers reduces of fans a) Damage b) Efficiency c) Cost d) Speed
Last Answer : c) Cost
Description : Beams of hyperbolic cooling towers are made up of a) Tungsten b) Iron c) Stainless steel d) Brass
Last Answer : c) Stainless steel
Description : Design of hyperbolic cooling tower standard for all cooling tower a) Mechanical draft b) Natural draft c) Both a & b d) Neither a & b
Last Answer : b) Natural draft
Description : Hyperbolic cooling towers generally used in the a) Steel industry b) Fertilizer industry c) Alumina industry d) Power industry
Last Answer : d) Power industry
Description : Why is exhaust system coming out of the turbine is admitted to a steam header 1 to increase the pressure 2 to increase the velocity 3 to decrease the pressure 4 to increase the velocity
Last Answer : 1 to increase the pressure
Description : What are used in the direct flow system to transfer the pond batch uniting at intake? a. Separators b. Filters c. Baffle walls d. Porous pipes
Last Answer : c. Baffle walls
Description : When vapour is cooled at constant total system volume, the _______ changes. A Volume. B PRESSURE C Temperature. D None of the mentioned.
Last Answer : B PRESSURE
Description : Which of the following is a fissile fuel 1 carbon 2 potassium 3 thorium 4 graphite
Last Answer : 3 thorium
Description : The exhaust steam coming out of turbine is admitted to a steam header to A Increase the pressure B decrease the pressure C decrease the pressure drop D control the pollution
Last Answer : A Increase the pressure
Description : Condensation starts at ________ point. A Dew B Bubble C Triple D none of the mentioned
Last Answer : A Dew
Description : Following is advantage of hyperbolic design a) Less initial cost b) Less noise c) Less vibration d) All above
Last Answer : b) Less noise
Description : Following is not the advantage of hyperbolic design a) Less maintenance cost b) Less initial cost c) Less noise d) All of the above
Last Answer : b) Less initial cost
Description : Hyperbolic design allows for use of without sacrificing structural integrity a) Minimum material b) Maximum material c) High quality material d) Low quality material
Last Answer : a) Minimum material
Description : If overloading a DC machine becomes necessary in an emergency, you should ____________. A. cool the machine with portable blowers and fans B. hold thermal overload relays open with blocks of ... the windings for cooling D. increase the residual magnetism value of windings to reduce eddy currents
Last Answer : Answer: A
Description : In ________ cooling tower there is no direct contact between the water and Air. • Dry type • Evaporative type • Once through • All of the above
Last Answer : All of the above
Description : The expression for entropy change given by, ΔS = - nR ln (P2/P1), holds good for (A) Expansion of a real gas (B) Reversible isothermal volume change (C) Heating of an ideal gas (D) Cooling of a real gas
Last Answer : (B) Reversible isothermal volume change
Description : What happens in a reversible adiabatic expansion process? (A) Heating takes place (B) Cooling takes place (C) Pressure is constant (D) Temperature is constant
Last Answer : (B) Cooling takes place
Description : The expression, ∆G = nRT. ln(P2/P1), gives the free energy change (A) With pressure changes at constant temperature (B) Under reversible isothermal volume change (C) During heating of an ideal gas (D) During cooling of an ideal gas
Last Answer : (A) With pressure changes at constant temperature
Description : What happens in a reversible adiabatic compression? (A) Heating occurs (B) Cooling occurs (C) Pressure is constant (D) Temperature is constant
Last Answer : A) Heating occurs
Description : The expression for entropy change given by, ΔS = nR ln (V2/V1) + nCvln (T2/T1) is valid for (A) Reversible isothermal volume change (B) Heating of a substance (C) Cooling of a substance (D) Simultaneous heating and expansion of an ideal gas
Last Answer : (D) Simultaneous heating and expansion of an ideal gas
Description : When an operating motor is connected to the controller shown in the illustration, the a path of current flow through the circuit is ____________. EL-0010 A. 'L1', stop button, start button, coil 'CR', 'L2' B. 'L1' ... L2' D. 'L1', stop button, start button, 'CR' contact, 'M' contact, 'CR' coil, 'L2'
Last Answer : Answer: B
Description : If a robot can alter its own trajectory in response to external conditions, it is considered to be ____________ a) intelligent b) mobile c) open loop d) non-servo
Last Answer : a) intelligent