更多"The process that occurs when heat i"的相关试题:
[单项选择]Opposition occurs when（）.
A. the Sun，Earth，and Moon are at right angles
B. the Sun's declination is 0°and is moving south
C. an inferior planet is at the maximum angle to the line of sight to the Sun
D. the Earth is between a planet and the Sun
[单项选择]Superior conjunction occurs when（）.
A. the Sun is at maximum declination north or south
B. a planet crosses the external plane of the ecliptic
C. the Sun is between the Earth and a planet
D. two planets are in line
[单项选择]Critical speed in diesel engines occurs when engine torque pulsations become （）
A. opposed to the crankshaft rocking couple
B. resonant with the crankshaft natural frequency
C. critical fore and aft crankshaft vibrations
D. horizontal whipping motions of the crankshaft
[单项选择]What generally occurs when the land is cooler than the nearby water? （）
A. A land breeze
B. A sea breeze
C. A norther
D. A prevailing westerly
[单项选择]What occurs when rising air cools the dew point?（）
A. advection fog forms
B. humidity decrease
C. wind increase
D. Cloud form
[单项选择]When the heat load begins to increase, the needle valve of an expansion valve will（）
A. move in an opening direction
B. move in a closing direction
C. either open or close
D. not move at all
[单项选择]The heat generated by a fire will be transferred through a bulkhead or dock, as a result of （）.
A. conduction
B. radiation
C. convection
D. advection
[单项选择]When a sudden increase in steam demand occurs from the boiler, the water level in the drum at the higher pressure will（）
A. rise quickly
B. rise slowly
C. drop quickly
D. drop slowly
[单项选择]A refrigerant gives up heat when it goes through （）.
A. condenser
B. regurgitate
C. evaporator
D. boil coil
[单项选择]When subjected to high heat from a open flame, or an electric heating element, which of the listed refrigerants will break down and produce phosgene gas?（）
A. CO2
B. Methyl chloride
C. R-22
D. Sulphur dioxide
[单项选择]A fluid coil will （）large quantities of heat when it changes state from a liquid to a vapor.
A. release
B. absorb
C. develop
D. regenerate
[单项选择]A fluid coil will （） large quantifies of heat when it changes state from a liquid to a vapor.
A. release
B. absorb
C. develop
D. regenerate
[单项选择]The amount of heat released by steam when it changes to water at the same temperature is called（）.
A. latent heat of condensation
B. latent heat of vaporization
C. latent heat of saturation
D. sensible heat of condensation
[单项选择]The sum of the sensible heat and the latent heat of any substance is known as （）.
A. total heat
B. residual heat
C. specific heat
D. superheat
[单项选择]Less scale formation occurs in a flash evaporator than in a submerged tube evaporator because （）.
A. the distillate produced has greater purity
B. no boiling occurs on heat transfer surfaces
C. evaporation occurs at a higher rate
D. the incoming feed is at a higher temperature
[单项选择]Which of the two events listed occurs simultaneously in a two-stroke/cycle diesel engine?（）
A. Exhaust and scavenging
B. Scavenging and compression
C. Ignition and expansion
D. Exhaust and compression
[单项选择]Priming of the tides occurs（）.
A. at times of new and full Moon
B. when the Earth，Moon，and Sun are lying approximately on the same line
C. when the Moon is between first quarter and full and between third quarter and new
D. when the Moon is between new and first quarter and between full and third quarter
