1. What is commonly used to measure small and moderate pressure differences?
Answer
Correct Answer:
The manometer
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2. What are the two types of macroscopic energy?
Answer
Correct Answer:
Kinetic and potential
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3. What are two examples of macroscopic forms of energy?
Answer
Correct Answer:
Kinetic and potential energies
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4. What is the ratio of the actual velocity of the fluid to the velocity of sound in the same fluid at the same state?
Answer
Correct Answer:
Mach number
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5. What is the name of the Austrian physicist?
Answer
Correct Answer:
Ernst Mach
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6. What is the term for the heating value when the H2O in the products is in the liquid form?
Answer
Correct Answer:
Lower heating value
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7. What is the LHV of water when it is in the vapor form?
Answer
Correct Answer:
Heating value
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8. The LHV of products that contain water in the vapor form is which value?
Answer
Correct Answer:
Lower
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9. What is the heating value of the fuel when the water in the combustion gases is a vapour?
Answer
Correct Answer:
Lower
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10. What is the heating value of the fuel when water is a vapour?
Answer
Correct Answer:
Lower heating value
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11. What is the plot of saturation temperature Tsat versus saturation pressure Psat called?
Answer
Correct Answer:
Liquid-vapour saturation curve
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12. What do the molecules of a liquid retain their original positions with respect to?
Answer
Correct Answer:
One another
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13. What is the by-product of natural gas processing or crude oil refining?
Answer
Correct Answer:
Liquefied petroleum gas
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14. What is the main component of LPG?
Answer
Correct Answer:
Propane
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15. What is the definition of lighting efficacy?
Answer
Correct Answer:
The amount of light output in lumens per W of electricity consumed
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16. What is defined as the amount of light output in lumens per watt of electricity consumed?
Answer
Correct Answer:
Lighting efficacy
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17. What does the latent heat of vaporization measure?
Answer
Correct Answer:
Energy absorbed during vaporization
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18. What is the amount of energy absorbed during vaporization?
Answer
Correct Answer:
Latent heat of vaporization
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19. What is the value of latent heat of fusion?
Answer
Correct Answer:
Energy
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20. What is the latent heat of fusion?
Answer
Correct Answer:
The amount of energy absorbed during melting
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21. What is the amount of energy absorbed during melting?
Answer
Correct Answer:
Latent heat of fusion
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22. What does a latent heat process involve?
Answer
Correct Answer:
Phase-change process
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23. What is the amount of energy absorbed or released during a phase change?
Answer
Correct Answer:
Latent heat
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24. What is the internal energy associated with the phase of a system?
Answer
Correct Answer:
Latent energy
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25. What is the result of engine knock?
Answer
Correct Answer:
Audible noise
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26. What is the audible noise in the engine called?
Answer
Correct Answer:
Engine knock
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27. What is a system's energy as a result of its motion relative to some reference frame?
Answer
Correct Answer:
Kinetic energy KE
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28. What is energy that a system possesses as a result of its motion relative to some reference frame?
Answer
Correct Answer:
Kinetic energy
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29. What is a kilopascal?
Answer
Correct Answer:
1000 Pascal
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30. What is the unit for pressure?
Answer
Correct Answer:
Kilopascal
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31. Kilopascal is the unit of pressure equal to how many Pascal?
Answer
Correct Answer:
1000
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32. What is the value of the triple point of water?
Answer
Correct Answer:
273.16 K
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33. In what year was the Kelvin unit established?
Answer
Correct Answer:
1954
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34. What is the thermodynamic temperature scale in the SI?
Answer
Correct Answer:
Kelvin scale
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35. What year did the degree symbol for Kelvin scale drop?
Answer
Correct Answer:
1967
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36. What can have a thermal efficiency of 100 percent?
Answer
Correct Answer:
No heat engine
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37. What can an engine not have an efficiency of?
Answer
Correct Answer:
100 percent
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38. What is the sum of the products of the mole fraction and critical pressure of each component of a gas mixture?
Answer
Correct Answer:
Pseudocritical pressure
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39. Who proposed Kay's rule?
Answer
Correct Answer:
W. B. Kay
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40. When did W.B. Kay propose his rule?
Answer
Correct Answer:
1936
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41. What measurement is used to measure the change in temperature with pressure during a constant-enthalpy process?
Answer
Correct Answer:
JT
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42. What is a measure of the change in temperature with pressure during a constant-enthalpy process?
Answer
Correct Answer:
Joule-Thomson coefficient JT
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43. How many units does the unit of energy have?
Answer
Correct Answer:
J
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44. What is the unit of energy?
Answer
Correct Answer:
Joule
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45. What is the cycle used in aircraft gas turbines?
Answer
Correct Answer:
Jet-propulsion cycle
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46. What sort of process maintains a constant temperature?
Answer
Correct Answer:
Isothermal process
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47. What is defined as the ratio of the work input to a compressor for the reversible isothermal case and the work input to a compressor for the actual case?
Answer
Correct Answer:
Isothermal efficiency of a compressor
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48. What is the relationship between isothermal compressibility and volume changes?
Answer
Correct Answer:
Pressure changes
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49. What relates how volume changes when pressure changes when temperature is held constant?
Answer
Correct Answer:
Isothermal compressibility
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50. What is a system that is not allowed to cross its boundary?
Answer
Correct Answer:
Isolated system
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51. In an isolated system, what is not allowed to cross the boundary?
Answer
Correct Answer:
Energy
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52. What term describes a process that maintains the same amount of volume?
Answer
Correct Answer:
Isochoric
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53. What does Isobaric process mean?
Answer
Correct Answer:
A process during which the pressure P remains constant
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54. Iso is a commonly used term to designate a process that remains constant what?
Answer
Correct Answer:
Property
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55. What property remains constant for iso prefix?
Answer
Correct Answer:
Process
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56. When does isentropic stagnation state occur?
Answer
Correct Answer:
When the stagnation process is reversible
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57. What is the stagnation state when the stagnation process is reversible?
Answer
Correct Answer:
Isentropic stagnation state
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58. What kind of process is isentropic?
Answer
Correct Answer:
Internally reversible and adiabatic
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59. What is the term for the process that is internally reversible and adiabatic?
Answer
Correct Answer:
Isentropic process
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60. What is the ratio of actual work output to the work output that would be achieved if the process between the inlet state and the exit pressure were isentropic?
Answer
Correct Answer:
Isentropic efficiency of a turbine
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61. What is the ratio of the actual kinetic energy of the fluid at the nozzle exit to the kinetic energy value at the exit of an isentropic nozzle for the same inlet state and exit pressure?
Answer
Correct Answer:
Isentropic efficiency of a nozzle
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62. What is the definition for isentropic efficiency of a compressor?
Answer
Correct Answer:
The ratio of the work input required to raise the pressure of a gas to a specified value
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63. What are processes that cannot be reversed?
Answer
Correct Answer:
Irreversible processes
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64. What is irreversibility I called?
Answer
Correct Answer:
Any difference between the reversible work Wrev and the useful work Wu
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