单选题A refrigerant gives up heat when it goes through ().AcondenserBregurgitateCevaporatorDboil coil

单选题
A refrigerant gives up heat when it goes through ().
A

condenser

B

regurgitate

C

evaporator

D

boil coil


参考解析

解析: 暂无解析

相关考题:

My ancient jeep was straining up through beautiful countryside when the radiator began to leak.() 此题为判断题(对,错)。

CSometimes, the simplest ideas are the best. For example, to absorb heat from the sun to heat water, you need large, flat, black surfaces. One way to do that is to build those surfaces specially, on the roofs of buildings. But why go to all that trouble when cities are full of black surfaces already, in the form. of asphalt (柏油) roads?Ten years ago, this thought came into the mind of Arian de Bondt, a Dutch engineer. He finally persuaded his boss to follow it up. The result is that their building is now heated in winter and cooled in summer by a system that relies on the surface of the road outside.The heat-collector is a system of connected water pipes. Most of them run from one side of the street to the other, just under the asphalt road. Some, however, dive deep into the ground.When the street surface gets hot in summer, water pumped through the pipes picks up this heat and takes it underground through one of the diving pipes. At a depth of 100 metres lies a natural aquifer (蓄水层) into which several heat exchangers (交换器) have been built. The hot water from the street runs through these exchangers, warming the ground-water, before returning to the surface through another pipe. The aquifer is thus used as a heat store.In winter, the working system is changed slightly. Water is pumped through the heat exchangers to pick up the heat stored during summer. This water goes into the building and is used to warm the place up. After performing that task, it is pumped under the asphalt and its remaining heat keeps the road free of snow and ice.64. Which of the following is true according to the first two paragraphs?A. Arian de Bondt got his idea from his boss.B. Large, flat, black surfaces need to be built in cities.C. The Dutch engineer's system has been widely used.D. Heat can also be collected from asphalt roads.

A conversation ()between an interviewee and the interviewers. A、goes byB、goes onC、goes up

When a word changes from a specific to a general meaning, it goes through extension of meaning.( ) 此题为判断题(对,错)。

The temperature of the refrigerant in the evaporator coil depends mostly upon the ___.A.refrigerant pressure in the evaporatorB.cooling water temperature to the condenserC.heat load in the refrigerator compartmentD.solenoid valve in the liquid line

How can a Ezonexam administrator determine if a router has been configured when it is first powered up?A.A configured router prompts for a passwordB.A configured router goes to the privileged mode promptC.An un configured router goes into the setup dialogD.An un configured router goes to the enable mode prompt

When the fuel oil is burning in the combustion chamber, it _____.A.gives up large amount of heatB.gives off large amount of heatC.gives up large amount of steamD.gives off large amount of steam

In a chilled(冷的) water air conditioning unit using a reciprocating compressor, the refrigerating effect of the primary refrigerant can be increased by ______.A.increasing refrigerant pressure in the coilB.increasing chilled water flow through the coolerC.sub-cooling the refrigerant in the condenserD.superheating the refrigerant in the compressor

The heat gained per pound of refrigerant in the evaporator is known as the ______.A.latent heat of vaporizationB.sensible heatC.refrigerating effectD.specific heat of vaporization

共用题干How the Body Keeps the Same TemperatureThe temperature of your body should always be the same if you are fine,no matter whether the weather is hot or cold.That is why the doctor tests your temperature with a thermometer when you are sick.Normally, your body teniperature is ninety-eight point six degrees Fahrenheit.If it is_______(51)than that,it is a stire sign that something is wrong with your body.Your body keeps the same temperature all the time,because it balances the heat it produces and theheat it_______(52)off. It is always burning up food and producing heat.It can produce heat faster when the body needs or give off heat faster when the body becomes too warm.Let's see_______(53) this works.The heat of your body is given off chiefly through the skin.When you feel_______(54),your skin is tight and shows"goose flesh".When you feel chilly,you must_______(55)around to keep warm._______(56)your muscles begin to work,bum up fuel and produce more heat.It is not_______(57)toshiver,so you usually prefer warming up by taking exercise,or put_______(58)more clothes to keep warm。When you get warm,the skin is loose and soft. It is so supplied_______(59)blood that heat is giv-en off rapidly. If you get too warm,you begin to sweat and_______(60)body heat is used in evaporating the, moisture in your body.In warm_______(61)or warm rooms,you wear less clothing,_______ (62)heat can be given off freely. You prefer less exercise because your body is warm_______(63),and the extra heat produced by taking too much exercise makes you uncomfortable.Now you see why you_______(64)differently in different kinds of weather. In summer,when it is hot,you feel tired and lazy.You do not care to work or play,but enjoy lying down and doing nothing. When you get out of door in winter,the cold air makes you feel_______(65).You want to run and play._________(61)A:weatherB:climateC:circumstanceD:environment

How can an administrator determine if a router has been configured when it is first powered up?()A、A configured router prompts for a passwordB、A configured router goes to the privileged mode promptC、An un configured router goes into the setup dialogD、An un configured router goes to the enable mode prompt

单选题When you adjust a thermostatic expansion valve, ().Arefrigerant must be bled off the sensing line before adjustments are madeBall refrigerant must be pumped into the receiver before adjustments are madeCtime must be allowed for conditions to stabilize in the evaporator before further adjustments are madeDall refrigerant must be routed through the dehydrator while changing the superheat setting

单选题As the refrigerant passes through the valve orifice, its pressure is reduced and part of the refrigerant turns into ().AliquidBoily mixtureCemulsionDvapor

单选题The refrigerant flows through the evaporator, where it () heat from the refrigerated space.AextractsBreleasesCgives noDabsorbs no

单选题In a refrigeration system, the refrigerant absorbs the latent heat of vaporization in the().AcompressorBcondenserCreceiverDevaporator

单选题The heat removed from the refrigerant in the condenser of a refrigeration plant is the ()Alatent heat of expansionBsensible heat of condensationCheat of compressionDall of the above

单选题In a compression refrigeration plant the refrigerant flows from the expansion valve and through the () where it absorbs heat from the space being cooled and becomes a gas or vapor.AcompressorBcondenserCthrottle valveDevaporator

单选题Which of the following terms represents the form of heat removed from the refrigerant in the condenser of a refrigeration system?()ALatent heat of vaporizationBHeat of compressionCSuperheatDAll of the above

单选题The only means of removing the latent heat of condensation from a refrigerant in the normal refrigeration cycle is by ().Apassing it through the expansion valveBcondensing refrigerant in the system condenserCpassing the gaseous refrigerant through the heat interchanger on the suction side of the compressorDmaintaining a high pressure on the systems receiver

单选题The rate of heat transfer between the hot and cold fluids passing through a shell-and-tube type heat exchanger will ().Aremain constant along the tubes lengthBbe greatest in a single pass counter flow heat exchangerCremain constant throughout the heat exchangerDvary from section to section through out the heat exchanger

单选题The teacher gives students 2 minutes to skim a text, and when time is stop and answer some questions. Here the teacher is playing the role of a(an)up, he asks students toAassessorBprompterCparticipantDcontroller

单选题Which of the following will help dissipate heat through the heat sink when upgrading a CPU? ()ACase fanBThermal compoundCMotherboard riserDPower supply

单选题Trunk type diesel engine pistons are effectively cooled when heat is()Aradiated through the engine blockBtransferred to water cooled cylinder wallsCconducted through the piston crownDtransferred to escaping exhaust gases

单选题In a chilled water air conditioning unit using a reciprocating compressor, the refrigerating effect of the primary refrigerant can be increased by ().Aincreasing refrigerant pressure in the coilBincreasing chilled water flow through the coolerCsub-cooling the refrigerant in the condenserDsuperheating the refrigerant in the compressor

单选题The teacher gives students 2 minutes to skim a text,and when time is up,he asks students to stop and answer some questions.Here the teacher is playing the role of a(n)_______.AassessorBprompterCparticipantDcontroller

单选题How can an administrator determine if a router has been configured when it is first powered up?()AA configured router prompts for a passwordBA configured router goes to the privileged mode promptCAn un configured router goes into the setup dialogDAn un configured router goes to the enable mode prompt

单选题The component of a refrigerating system in which the refrigerant vaporizes and absorbs heat is known as the ().AcondenserBvapor generatorCaccumulatorDevaporator