Description : A _______ is used to measure atmospheric pressure. a. Thermometer b. Barometer c. Manometer d. None of the above
Last Answer : Barometer
Description : What pressure measuring device consists of a coiled hollow tube that tends to straighten out when the tube is subjected to an internal pressure? A. Aneroid B. Manometer C. Bourdon pressure gage D. Barometer
Last Answer : Bourdon pressure gage
Description : What instrument is used to measure atmospheric pressure? A. Pitot tube B. Wind vane C. Barometer D. Manometer
Description : Which of the following is NOT an instrument used to measure pressure? A. Bourdon tube B. Pitot tube C. Aneroid D. Manometer
Last Answer : Pitot tube
Description : Instrument used to measure the absolute pressure of the atmosphere a. galvanometer b. thermometer c. barometer d. pressure gages
Last Answer : barometer
Description : Which of the following cannot be measured by a thermometer? a. Latent Heat b. Sensible Heat c. Specific Heat d. Heat of Fusion
Last Answer : Latent Heat
Description : The gas in a constant gas thermometer cooled to absolute zero would have _________. a. no volume b. no pressure c. zero temperature at all scales d. none of the above
Last Answer : no pressure
Description : In order to use a substance to make a thermometer the substance must _________ with a temperature change. a. expand b. contract c. change d. increase
Last Answer : change
Description : What gas thermometer is based on the principle that at low pressure, the temperature of a gas is proportional to its pressure at constant volume? A. Constant-pressure gas thermometer B. Isobaric gas thermometer C. Isometric gas thermometer D. Constant-volume gas thermometer
Last Answer : Constant-volume gas thermometer
Description : The temperatures of the ideal gas temperature scale are measured by using a ______. A. Constant-volume gas thermometer B. Constant-mass gas thermometer C. Constant-temperature gas thermometer D. Constant-pressure gas thermometer
Description : A vertical column of water will be supported to what height by standard atmospheric pressure. If the Y w = 62.4lb/ft3 po = 14.7 psi. a. 44.9 ft b. 33.9 ft c. 22.9 ft d. 55.9 ft formula: ho= po/Yw
Last Answer : 33.9 ft
Description : A vertical column of water will be supported to what height by standard atmospheric pressure. a. 33.9 ft b. 45 ft c. 67 ft d. 25.46 ft ho= Po/Yo
Description : The unit of pressure in S.I. units is (a) kg/cm2 (b) mm of water column (c) pascal (d) dynes per square cm (e) bars
Last Answer : Answer : c
Description : A 30-m vertical column of fluid (density 1878 kg/m3 ) is located where g= 9.65 mps2 . Find the pressure at the base of the column. (Formula: pg= gρhg/k ) a. 543680 N/m2 b. 543.68 kPa (gauge) c. Both a & b d. None of the above
Last Answer : Both a & b
Description : _________ is defined as that equivalent to the pressure due to a column of mercury 76cm long. a. surface pressure b. gage pressure c. standard atmospheric pressure d. isobaric pressure
Last Answer : standard atmospheric pressure
Description : Find the pressure due to a column of mercury 74.0 cm high. a. 91.80 x 10^3 N/m^2 b. 73.56 x 10^2 N/m^2 c. 9.86 x 10^4 N/m^2 d. 87.2 x 10^4 N/m^2
Last Answer : 9.86 x 10^4 N/m^2
Description : A vacuum is connected to a tank reads 3kpa at a location w/ the barametric pressure reading is 75mmhg. Determined the P absolute in the tank a. 70.658 kpa b. 68 kpa c. 58.78 kap d. None of the above Pabs = Patm – Pvacuum
Last Answer : 70.658 kpa
Description : A sudden fall in the barometer reading is a sign of approaching (a) fine weather (b) rains (c) storm (d) cold wave (e) hot wave.
Description : Extensive property of a system is one whose value (a) depends on the mass of the system like volume (b) does not depend on the mass of the system, like temperature, pressure, etc. (c) is not ... the state (d) is dependent on the path followed and not on the state (e) is always constant.
Last Answer : Answer : a
Description : Intensive property of a system is one whose value (a) depends on the mass of the system, like volume (b) does not depend on the mass of the system, like temperature, pressure, etc. (c) is not ... on the state (d) is dependent on the path followed and not on the state (e) remains constant.
Last Answer : Answer : b
Description : A vessel with a volume of cubic meter contains liquid water and water vapor ion equilibrium at 600 kPa. The liquid water has mass of1kg. Using the steam table, calculate the mass of the water vapor. A. 0.99kg B. 1.57 kg C ... / kg vg = 0.3157 m^3 / kg Vtot = mƒ vƒ + mg vg mg = (tot-mƒ vƒ) / vg
Last Answer : 3.16 kg
Description : A 10m^3 vessel initially contains 5 m^3 of liquid water and 5 m^3 of saturated water vapor at 100 kPa. Calculate the internal energy of the system using the steam table. A. 5 x10^5 kJ B. 8x10^5 kJ C. 1 ... 3 kJ/kg ug= 2506kJ/kg formula: Mvap = V vap/vg M liq = Vliq/ vƒ u =uƒM liq + ug M vap
Last Answer : 2 x10^6 kJ
Description : When liquid water is converted to steam at 100˚C, the entropy of water a. increases b. decreases c. remains the same d. none of the above
Last Answer : increases
Description : Which is NOT a correct statement? A. A superheated vapor will not condense when small amount of heat re removed B. An ideal gas is a gas that is not a superheated vapor C. A saturated ... absorb as much heat as it can without vaporizing D. Water at 1 atm and room temperature is subcooled
Last Answer : An ideal gas is a gas that is not a superheated vapor
Description : When water exists in the liquid phase and is not about to vaporize, it is considered as _____liquid. A. Saturated B. Compressed or subcooled C. Superheated D. Unsaturated
Last Answer : Compressed or subcooled
Description : _________________ is the name given to a gaseous phase that is in contact with the liquid phase, or that is in the vicinity of a state where some of it might be condensed. a) Vapor b) Saturated Vapor c) Superheated Vapor d) Wet Vapor
Last Answer : Vapor
Description : The phase transition of a liquid to a solid a. Solidification b. Freezing c. Fusion d. All of these
Last Answer : All of these
Description : The changing of solid directly to vapor without passing through liquid state is called a. Evaporation b. Vaporization c. Sublimation d. Condensation
Last Answer : Sublimation
Description : Which of the following is commonly used as liquid absorbent? a. Silica gel b. Activated alumina c. Ethylene glycol d. None of these
Last Answer : Ethylene glycol
Description : What refers to a liquid whose temperature is lower than saturation temperature corresponding to the existing pressure? a. Subcooled liquid b. Saturated liquid c. Pure liquid d. Compressed liquid
Last Answer : Subcooled liquid
Description : What refers to the state at which liquid and gaseous phases are indistinguishable? a. Triple point b. Critical point c. Boiling point d. Pour point
Last Answer : Critical point
Description : What is the unique state at which solid, liquid and gaseous phase can go co-exist in equilibrium? a. Triple point b. Critical point c. Boiling point d. Pour point
Last Answer : Triple point
Description : ___________ is the percent by weight that is saturated liquid. a) Quality, x b) Percent Moisture, y c) Vapor c) Liquid
Last Answer : Percent Moisture, y
Description : ___________ is the percent by weight that is saturated vapor. a) Quality, x b) Percent Moisture, y c) Vapor d) Liquid
Last Answer : Quality, x
Description : ____________is the difference between the saturation temperature for the given pressure and the actual sub cooled liquid temperature. a) Degrees of Superheat, °SH b) Degrees of Sub cooled, °SB c) Both a and b d) None of the above
Last Answer : Degrees of Sub cooled, °SB
Description : __________________ represents the highest pressure and highest temperature at which liquid and vapor can coexist in equilibrium. a) Critical Point b) Boiling Point c) Quality Point d) None of the above
Last Answer : Critical Point
Description : _________________ is a combination of saturated vapor and saturated liquid. a) Vapor b) Saturated Vapor c) Superheated Vapor d) Wet Vapor
Last Answer : Wet Vapor
Description : __________________ is a liquid at the saturations which has temperature equal to the boiling point corresponding to the existing pressure. a. Saturation Temperature b. Sub cooled Liquid c. Compressed Liquid d. Saturated Liquid
Last Answer : Saturated Liquid
Description : _________________ is one which has a pressure higher than the saturation pressure corresponding to the existing temperature. a. Saturation Temperature b. Sub cooled Liquid c. Compressed Liquid d. Saturated Liquid
Last Answer : Compressed Liquid
Description : ________________ is one which has a temperature lower than the saturation temperature corresponding to the existing pressure. a. Saturation Temperature b. Sub cooled Liquid c. Compressed Liquid d. Saturated Liquid
Last Answer : Sub cooled Liquid
Description : ______________ is the temperature at which liquids start to boil or the temperature at which vapors begin to condense. a. Saturation Temperature b. Sub cooled Liquid c. Compressed Liquid d. Saturated Liquid
Last Answer : Saturation Temperature
Description : Fuels that may classified conveniently in solid, liquid and gaseous. a. Unleaded fuel b. Diesel fuel c. Fossil fuel d. All of the above
Last Answer : Fossil fuel
Description : Amount or volume of liquid that pass in a given limit of time a. Flow rate b. Volume c. Time d. None of the above
Last Answer : Flow rate
Description : In thermodynamics, a throttling process, also called a _________, is a type of isenthalpic process where a liquid or gas is cooled as it passes from a higher pressure state to a lower pressure state. a. Rankine Process b. Carnot Cycle c. Joule-Thomson process d. Refrigeration process
Last Answer : Joule-Thomson process
Description : The speed at which a liquid escapes from a vessel through an orifice is given by _________. a. Archimedes Principle b. Evangelista’s Law c. Torricelli’s Theorem d. Bernoulli’s Equation
Last Answer : Torricelli’s Theorem
Description : Mixture of liquid and steam of the same substance in which both are at saturation temperature. a. dry steam b. current steam c. wet steam d. aerosol
Last Answer : wet steam
Description : Liquid hydrogen boils at 17 K. What is the temperature in degrees Celsius? a. 290 b. 63 c. -120 d. -256
Last Answer : -256
Description : _________ is the transition of a given substance from the solid to the gas phase with no intermediate liquid stage. a. Convection b. Conduction c. Radiation d. Sublimation
Description : The pressure of the vapor phase of a substance that is in equilibrium with the liquid or solid phase. a. Phase Pressure b. Equilibrium Vapor Pressure c. Specific Pressure d. Equilibrium Phase Pressure
Last Answer : Equilibrium Vapor Pressure
Description : The energy associated with individual molecules in a gas, liquid or solid. a. Specific Energy b. Molecular Energy c. Internal Energy d. Phase Energy
Last Answer : Internal Energy