Description : _________ is the unit of pressure and stress. a) Newton b) Pascal c) Hertz d) Joule
Last Answer : Pascal
Description : __________ is the unit of force. a) Newton b) Pascal c) Hertz d) Joule
Last Answer : Newton
Description : The unit of power in S.I. units is (a) newton (b) pascal (c) erg (d) watt (e) joule.
Last Answer : Answer : d
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 : 1 British thermal unit (BTU) is equivalent to how many joules? A. 1016 B. 1043 C. 1023 D. 1054
Last Answer : 1054
Description : The ______ of a substance is the amount of heat that must be added or removed from a unit mass of the substance to change its temperature by one degree. A. Latent heat of fusion B. Molar heat C. Specific heat capacity D. Specific heat
Last Answer : Specific heat capacity
Description : One joule is equivalent to one _____. A. Kg m/ s^2 ∙ B. Kg m^2/s^2 ∙ C. Kg m^2/s ∙ D. Kg m/s
Last Answer : Kg m^2/s^2
Description : The SI unit of pressure a. Pa b. N c. J d. None of the above
Last Answer : Pa
Description : The SI unit of mass a. kg b. g c. N d. None of the above
Last Answer : kg
Description : Two masses, one of the 10kg and the other unknown, are placed on a scale in a region where g = 9.67 m/sec2 . The combined weight of these two masses is 174.06 N. Find the unknown mass in kg. a. 20 kg b. 19 kg c. 18 kg d. 17 kg formula: m=Fg k / g
Last Answer : 18 kg
Description : A 600kg hammer of a pile driver is lilted 2m the pilling head. What is the change of potential energy? If the hammer is realest. What will be its velocity and the instant if it sticks the pilling? a. 10,772 N-m and 5.26m/s ... c. 11,772 N-m and 6.26m/s d. 11,77 2N-m and5.26m/s ∫PE = mgo(∫Z)/gc
Last Answer : 11,772 N-m and 6.26m/s
Description : A mass of 5kg is 100m above a given datum where local g = 9.75 m/s2 . Find the gravitational force in newtons. (Formula: Fg= mg/k ) a. 48.75 N b. 50 N c. 45 N d. None of the above
Last Answer : 48.75 N
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 : Refer to problem # 11. Determine the force that accelerates if to 12 m/s^2. horizontally along frictionless plane. A. 2474.23 N B. 2574.23 N C. 3474.23 N D. 2374.23 N Formula : M = wk / g F = ma /k
Last Answer : 2474.23 N
Description : A system weighing 2kN. Determine the force that accelerate if to 12 m/s^2. a. vertically upward when g = 9.7 m/s^2 A. 4474.23 N B.5484.23 N C.4495.23 N D.5488.23 N Formula: F = m/k (a +g)
Last Answer : 4474.23 N
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 : The value of the product of molecular weight and the gas characteristic constant for all the gases in M.K.S. unit is (a) 29.27 kgfm/mol°K (b) 8314kgfm/mol°K (c) 848kgfm/mol°K (d) 427kgfm/mol°K (e) 735 kgfm/mol°K.
Description : The unit of energy in S.I. units is (a) watt (b) joule (c) joule/s (d) joule/m (e) joule m.
Last Answer : Answer : b
Description : The mechanical equivalent of heat is a. joule b. calorie c. Btu d. Specific heat
Last Answer : joule
Description : The first law of thermodynamics may be expressed in the following equivalent a. the net heat transfer id equal to the network b. the sum of the total energy forms leaving the system boundary is ... neither be created nor destroyed but only converted from one form to another d. all of the above
Last Answer : all of the above
Description : Two thick slices of bread, when completely oxidized by the body, can supply 200,000 cal of heat. How much work is this equivalent to? a) 4,190,000 joules b) 8,390,000 joules c) 839, ... d) 419 000 joules Formula: J =Work/Heat J = mechanical equivalent of heat whose value is 4.19 joules/calorie
Last Answer : 419 000 joules
Description : How many joules of work is the equivalent of 15000 cal of heat? a) 62850 joules b) 3579.95 joules c) 14995.81 joules d) 15004.19 joules Formula: J =Work/Heat J = mechanical equivalent of heat whose value is 4.19 joules/calorie
Last Answer : 62850 joules
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 : One erg is equivalent to how many joules? A. 10^-8 B. 10^-7 C. 10^-6 D. 10^-5
Last Answer : 10^-7
Description : One calorie is equivalent to how many joules? A. 4.448 B. 4.184 C. 4.418 D. 4.814
Last Answer : 4.184
Description : 1 atm is equivalent to how many pascals? A. 101,325 B. 101,689 C. 101,102 D. 101,812
Last Answer : 101,325
Description : 1 bar is equivalent to how many pascals? A. 10^3 B. 10^4 C. 10^5 D. 10^6
Last Answer : 10^5
Description : The law of conservation of mass states that ______. a. mass is indestructible b. mass is destructible c. mass is indestructible d. none of the above
Last Answer : mass is indestructible
Description : ______ of a Body is the absolute quantity of a matter in it. a. Mass b. Weight c. Density d. Volume
Last Answer : Mass
Description : 710°R= ______ °C a. 214 b. 121 c. 213 d. None of the above
Last Answer : 121
Description : 746 °R = ______ °F a. 254 b. 345 c. 286 d. None of the above
Last Answer : 286
Description : A ______ is a flow in which the gas flow is adiabatic and frictionless and entropy change is zero. A. Isentropic flow B. Isobaric flow C. Steady flow D. Uniform flow
Last Answer : Isentropic flow
Description : The low temperature reservoir of the heat reservoirs is known as ______. A. Source reservoir B. Heel reservoir C. Toe reservoir D. Sink reservoir
Last Answer : Sink reservoir
Description : “The total volume of a mixture of non-reacting gases is equal to the sum of the partial volumes.” This statement is known as ______. A. Law of Dulong and Petit B. Maxwell-Boltzmann law C. Amagat’s law D. Avogadro’s law
Last Answer : Amagat’s law
Description : Considering one mole of any gas, the equation of state of ideal gases is simply the ______ law. A. Gay-Lussac law B. Dulong and Petit C. Avogadro’s D. Henry’s
Last Answer : Avogadro’s
Description : “At constant pressure, the volume of a gas is inversely proportional to the pressure”. This is known as ______. A. Boyle’s Law B. Charles’s Law C. Gay-Lussac Law D. Ideal gas law
Last Answer : Boyle’s Law
Description : Entropy is transferred by ______. A. Work B. Heat C. Energy D. Work and heat
Last Answer : Heat
Description : A process during which entropy remains constant is called ______ process A. Isometric B. Isochoric C. Isobaric D. Isentropic
Last Answer : Isentropic
Description : The Carnot cycle is composed of ______ processes. A. One isothermal and one adiabatic B. One isothermal and two adiabatic C. Two isothermal and one adiabatic D. Two isothermal and two adiabatic
Last Answer : Two isothermal and two adiabatic
Description : A device that violates the second law of thermodynamics is called a ______. A. Perpetual motion machine of the second kind B. Universal machine of the second kind C. Ambiguous machine of the second kind D. Unique machine of the second kind
Last Answer : Perpetual motion machine of the second kind
Description : The equation Ein – Eout = E∆ system is known as ______. A. Energy conservation B. Energy equation C. Energy balance D. Energy conversion equation
Last Answer : Energy balance
Description : At same temperatures, the radiation emitted by all real surfaces is ______ the radiation emitted by a black body. A. Less than B. Greater than C. Equal to D. Either less than or greater than
Last Answer : Less than
Description : The term “adiabatic” comes from Greek “adiabatos” which means ______. A. No heat B. No transfer C. Not to be passed D. No transformation
Last Answer : Not to be passed
Description : If there is no heat transferred during the process, it is called a ______ process. A. Static B. Isobaric C. Polytropic D. Adiabatic
Last Answer : Adiabatic
Description : The mass of one mole of a substance in grams is known as ______. A. Molar weight B. Molar mass C. Molar volume D. Molar constant
Last Answer : Molar mass
Description : In the equation Pv = RT, the constant of proportionality R is known as ______. A. Universal gas constant B. Gas constant C. Ideal gas factor D. Gas index
Last Answer : Gas constant
Description : The “equation of state” refers to any equation that relates the ______ of the substance. A. Pressure and temperature B. Pressure, temperature and specific weight C. Temperature and specific weight D. Pressure, temperature and specific volume
Last Answer : Pressure, temperature and specific volume
Description : The ratio of the mass of vapor to the total mass of the mixture is called ______. A. Vapor ratio B. Vapor content C. Vapor index D. Quality
Last Answer : Quality
Description : The term “enthalpy” comes from Greek “enthalpen” which means ______. A. Warm B. Hot C. Heat D. Cold
Description : The amount of heat required to raise the temperature of 1 pound of water by 1°F is called ______. A. Calorie B. Joule C. BTU D. Kilocalorie
Last Answer : BTU