网友您好， 请在下方输入框内输入要搜索的题目：
题目内容
（请给出正确答案）
单选题
The advantages of flash type evaporators, as compared to submerged tube type evaporators, include （）.
A
less internal corrosion because of lower brine density
B
higher temperature evaporation for lower salinity of the distillate produced
C
less scale formation in a flash evaporator
D
less feed-water required for a flash evaporator
参考答案
参考解析
解析：
暂无解析
更多 “单选题The advantages of flash type evaporators, as compared to submerged tube type evaporators, include （）.A less internal corrosion because of lower brine densityB higher temperature evaporation for lower salinity of the distillate producedC less scale formation in a flash evaporatorD less feed-water required for a flash evaporator” 相关考题
考题
设在工程中定义了下列类型： Type Stutype ino As Integer strname As String*20 Strsex As String*1 Smark As Single End Type在窗体上正确使用这个类型的是下列哪个操作 A. Sub Command1_Click() Dim student As Stutype With student .ino=12 .strname=smith .strsex=男 .smark=89 End With End Sub B. Sub Command1_Click() Dim student As Stutype With student .ino=12 .strname=＂smith＂ .strsex=＂男＂ .smark=89 End With End Sub C. Sub Command1_Click() Dim student As Stutype With Stutype .ino=12 .strname=＂smith＂ .strsex=＂男＂ .smark=89 End With End Sub D. Sub Command1_Click() Dim student As Stutype With student .ino=12 .strname=＂smith＂ .strsex=＂男＂ .smark=89 End student End Sub
考题
执行下面的程序段后，(AX)=______。ARRAY DW 10 DUP(2)XOP AX，AXMOV CX，LENGTH ARRAYMOV SI，SCE ARRAY-TYPE ARRAYNEXT： ADD AX，ARRAY[SI]SUB SI，TYPE ARRAYLOOP NEXT
考题
执行以下程序段后ARRAY DW 10DUP(2)XOR AX， AXMOV CX， LEHGTH ARRAYMOV SI， SIZE ARRAY_TYPE ARRAYNEXT： ADD AX，ARRAY[SI]SUB SI， TYPE ARRAYLOOP NEXT写出AX=【 】。
考题
执行下面的程序后，AX寄存器中的数据是( )。 BUT DW 10 DUP (2) XOR AX，AX MOV CX，LENGTH MOV SI，SIZE BUF-TYPE BUF NEXT： ADD AX，BUF [SI] SUB SI，TYPE BUT LOOPA．20B．30C．32D．40
考题
设在工程中定义了如下类型： Type stutype ino As Integer stmame As String*20 strsex As String*1 smark As Single End Type 在窗体上正确使用这个类型的是下列哪个操作( )。A．Sub Command1_click() Dimstudent As Stutype With student .ino=12 .strname=smith .strsex=男 .smark=89 End With End SubB．Sub Command1_Click() Dim student As Stutype With student .ino=12 .strname="smith" .strsex="男" .smark=89 End With End SubC．Sub Command1_Click() Dim student As Stutype With Stutype .ino=12 .strname="smith" .strsex="男" .smark=89 End With End SubD．Sub Command1_click() Dim student As Stutype With student .ino=12 .strname="smith" .strsex="男" .smark=89 End student End Sub
考题
有如下程序：Private type stuX as stringY as integerEnd typePrivate Sub Command1_Click()Dim a as stua.x=”ABCD”a.Y=12345print aEnd Sub程序运行时出现错误，错误的原因是A)Type定义语句没有放在标准模块中B)变量声明语句有错C)赋值语句不对D)输出语句print不对
考题
有如下程序： Private Type stu X As String Y As Integer End Type Private Sub Command1 Click（ ） Dim a As stu X="ABCD" Y=12345 Print a End Sub 程序运行时出现错误，错误的原因是（ ）。A.Type定义语句没有放在标准模块中B.变量声明语句有错C.赋值语句不对D.输出语句Print不对
考题
In a flash type evaporator, all saltwater heaters are vented through individual vent cocks to the ______.A.saltwater heater shellB.second-stage condenserC.atmosphereD.second-stage flash chamber
考题
You are designing a DNS implementing strategy to meet the business and technical requirement. Which type of zone should you use？（）A、 Sub ZonesB、 Standard Primary ZonesC、 Secondary ZonesD、 Active DirectoryIntegrated Zones
考题
单选题You are using a radar in which your own ship is shown at the center，and the heading flash always points to 0°. If bearings are measured in relation to the flash，what type of bearings are produced? （）A
RelativeB
TRUEC
CompassD
Magnetic
考题
单选题The heated feed-water entering any flash chamber of a flash-type evaporator will（）A
vaporize, with the un-flashed water remaining at the temperature at which it entered the flash chamberB
vaporize, with the un-flashed eater equalizing to the saturation conditions existing in the f lash chamberC
vaporize, with the remaining water a t a temperature greater than it entered the flash chamberD
boil, allowing steam bubbles to rise through the brine at the bottom of the flash chamber
考题
单选题In a flash type evaporator, all saltwater headers are vented through individual vent cocks to the（）.A
saltwater heater shellB
second-stage condenserC
atmosphereD
second-stage flash chamber
考题
单选题For a flash type evaporator, the seawater heater will have to maintain a enough temperature to minimize scale formation（）A
lowerB
higherC
lowD
high
考题
单选题Small droplets of water entrained in the flashed vapor produced in a flash-type evaporator, are removed by the （）A
spray pipesB
demistersC
condensersD
splash baffles
考题
单选题In the operation of a flash type evaporator equipped with air ejectors,the air and non- condensable gases are evacuated directly from the （）.A
first stage flash chamberB
second stage flash chamberC
first stage after condenserD
second stage distilling condenser
考题
单选题The demisters installed in a flash-type evaporator serve to （）A
deaerate the first effect distillateB
filter the condensed flash vaporsC
deaerate the first and second effect distillateD
remove small water droplets entrained in the flashed vapor
考题
单选题One distinct advantage of flash type evaporators, as compared to most other evaporators, is that in a flash evaporator （）.A
high temperature distillate can be re- circulated to induce additional flashingB
scale formation is not a severe problemC
cold shocking is more effective in removing scaleD
water purity is greatly increased at high capacity
考题
单选题The heated feedwater entering any flash chamber of a flash-type evaporator will（）A
vaporize, with the unflashed water remaining at the temperature at which it entered the flash chamberB
vaporize, with the unflashed water equalizing to the saturation conditions existing in the flash chamberC
vaporize, with the remaining water at the temperature greater than it entered the flash chamberD
boil, allowing steam bubbles to rise through the brine at the bottom of the flash chamber
考题
单选题For a flash type evaporator, a demister is located the condenser（）A
AfterB
beforeC
insideD
outside
考题
单选题On a multistage flash-type evaporator, the flash chamber is （）A
combined as part of the salt water feed heaterB
the open area above the brine levels in the first and second stagesC
combined as part of the distillate coolerD
another term used to describe the vapor feed heater
考题
单选题The difference between Fixed pitch propeller (FPP) and Controllable pitch propeller (CPP) is in that（）A
for FP, once fitted, the position of the blades can also be changed in operationB
for CP, once fitted, the position of the blades can also be changed in operationC
the CP type has a relatively smaller hub compared with the FP propellersD
the FP type has a relatively larger hub compared with the CP propellers
考题
单选题Early models of the flash-type evaporators used a separate shell-and-tube heat exchanger as the air ejector condenser.More recent models use a combined air ejector condenser with the（）A
distilling condenserB
salt water feed heaterC
distillate coolerD
flash chamber
考题
单选题Under normal operating conditions, the highest temperature and pressure conditions existing in a flash-type evaporator will occur in the （）.A
first stageB
second stageC
distillate coolerD
salt water feed heater
考题
单选题The principal purpose of sub-cooling liquid refrigerant prior to its entering the expansion valve is to （）.A
increase the refrigerating effect, by decreasing the amount of flash gasB
allow the refrigerant to enter the throttling device in a saturated conditionC
increase the refrigerating effect by increasing the amount of flash gasD
minimize the temperature drop of the liquid as it passes through the solenoid valve to the outlet side
考题
单选题You are designing a DNS implementing strategy to meet the business and technical requirement. Which type of zone should you use？（）A
Sub ZonesB
Standard Primary ZonesC
Secondary ZonesD
Active DirectoryIntegrated Zones
考题
单选题The primary reason low pressure evaporators produce distillate more efficiently, and with less scale formation, than high pressure evaporators is （）.A
evaporation is accomplished in a vacuumB
due to the higher temperature of the incoming feedC
due to the latent heat of evaporation principleD
evaporation in a submerged medium produces more distillate
考题
单选题A vacuum is initially created in a flash type distilling plant by（）.A
the flashing of the feed waterB
the condensation of the saltwater feedC
air ejectors, eductors, or a separate vacuum pumpD
condensation of the distillate
热门标签
最新试卷
