Convection is the principal means （） temperature is equilibrated in liquids and gases.

A、in which

B、on which

C、by which

D、from which

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更多“Convection is the principal means （） temperature is equilibrated in liquids and gases.”相关的问题

第1题

[单选题] Which of the lists forms of heat transfer, if any, is illustrated by the flow of combustion gases through a boiler?（）

A、Natural convection only B、Forced convection only C、Both natural convection and forced convection D、None

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第2题

[单选题] Combustible material stored in a compartment adjacent to a compartment where there is a fire may be ignitedThis ignition can occur by （）.

A、heat convection through the adjacent bulkheads B、combustion gases carried through the ventilation system C、direct convection of the heat emitted by the adjacent fire D、heat radiated from the dock or bulkhead by the adjacent fire

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第3题

[单选题] The movement of heat within a fluid, caused by the application of thermal energy, is called （）.

A、radiation B、conduction C、convection D、condo-radiation

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第4题

[单选题] Which type of precipitation is a product of the violent convection found in thunderstorms（）.

A、Snow B、Freezing Rain C、Hail D、Sleet

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第5题

[单选题] Air circulation is caused or affected by（）.

A、the rotation of the earth on its axis B、convection currents caused by differences in radiant heating between equatorial and polar regions C、mountain ranges D、All of the above

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第6题

[单选题] The tendency of a flammable liquid to vaporize is indicated by its （）.

A、ignition temperature B、flash point C、flammable range D、convection index

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第7题

[单选题] Ventilation systems connected to a compartment in which a fire is burning are normally closed to prevent the rapid spread of the fire by（）.

A、convection B、conduction C、radiation D、spontaneous combustion

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第8题

[单选题] The type of fog that occurs on clear nights with very light breezes and forms when the earth cools rapidly by radiation is known as（）.

A、Radiation fog B、Frontal fog C、Convection fog D、Advection fog