单选题A(n) () is a mechanical attack on the metal surface which may be due to a disturbance in the flow of the water over the blade of the propeller.AerosionBcorrosionCpittingDdezincification

单选题
A(n) () is a mechanical attack on the metal surface which may be due to a disturbance in the flow of the water over the blade of the propeller.
A

erosion

B

corrosion

C

pitting

D

dezincification


参考解析

解析: 暂无解析

相关考题:

有如下定义:class MA{int value;public:MA(int n=0):value(n){}};MA*ta,tb;其中MA类的对象名标识符是【 】。

A bare metal backup requires which of the following backup methodologies?() A. FullB. DifferentialC. IncrementalD. Database

Which of the following security threats involves making phone calls?() A.PhishingB.VishingC.DDoSD.Xmas attack

Which type of davit is not considered to be a mechanical davit ________.A.Sheath-screw boomB.RadialC.CrescentD.Quadrantal

航空器第一次接触着陆道面的那一点。()A、The point at which an aircraft first touch the surface of runway.B、The point at which an aircraft first touch down the surface of runway.C、The fix at which an aircraft first touch down the surface of runway.D、The fix at which an aircraft first touch the surface of runway.

The first coat to a bare metal surface is the().A、primerB、undercoatC、topcoatD、thinner

()are the three different coatings which can protect metal from corrosion.A、Cement wash, bitumen and paintB、Metal primers, undercoats and topcoatsC、Varnishes, heat-resistant paints and anti-fouling paintsD、Cement wash, primer and undercoat

Primer coats are applied to a bare metal surface to ()protection against rust.A、letB、giveC、preventD、take

A bare metal backup requires which of the following backup method ologies?()A、 FullB、 DifferentialC、 IncrementalD、 Database

Which of the following security threats involves making phone calls?()A、PhishingB、VishingC、DDoSD、Xmas attack

A bare metal backup requires which of the following backup methodologies?()A、FullB、DifferentialC、IncrementalD、Database

单选题As compared to carbon dioxide,dry chemical has which advantage?().ACleanerBEffective on metal firesCGreater rangeDMore cooling effect

单选题Primer coats are applied to a bare metal surface to give protection against ().ArustBdirtCdustDair

单选题A (n) () is a chemical or electro-chemical attack on the metal surface which may be further increased if the sea-water is polluted.AerosionBcorrosionCcavityDscouring

单选题Which is a disadvantage of Halon as a fire extinguishing medium?()AConducts electricityBDifficult to storeCLarge volume necessary to be effectiveDIneffective in powdered metal fires

单选题A bare metal surface should be applied with the ()(防腐漆).Aanti-corrosive paintBanti-fouling paintCheat-resistant paintDnon-slip paint

单选题The first coat to a bare metal surface is the ()(底漆).AundercoatBprimerCtopcoatDthinner

单选题A technician wants to decrease the overall attack surface of the servers in a data center through decreasing the number of open network ports on each server. Which of the following could the technician implement to increase security?()AHost based intrusion detection softwareBSoftware firewallCNTFSDACL

单选题Many vessels are provided with flume tanks,which also have a dump tank located under the flume tanks. In the event the ship is damaged,you could dump the flume tanks into the dump tank which would().Areduce the free surface effect and raise the KGBnot have any effect on free surface and raise the KGCreduce the free surface effect and lower the KGDnot have any effect on free surface and lower the KG

单选题The main bearing shells are made of steel with a lining of bearing metal which may be white metal, copper-lead or aluminum-tin alloy What is the meaning of “which” in the sentence above?()Amain bearing shellsBmain bearingCsteelDbearing metal

单选题In many installations basket strainers consist of a cylindrical container in which a perforated metal or wire basket is suspendedThe bold and italic word “which” means ().AinstallationsBbasket strainersCa cylindrical containerDa metal or wire basket

单选题Which of the general advantages listed does the electrical pyrometer have over the mechanical pyrometer?()AWhen heated, it will move proportional to the amount the metal has lengthened or expandedBThe pointer associated with the pyrometer scale can be made to also measure engine RPMCIt can be utilized in exhaust manifolds and heat exchangers interchangeablyDIt can indicate temperature at a distant point from the source heat

单选题Which of the listed types of files is the best for producing a fine finish on metal?()AMillBFloatCWardingDSecond cut

单选题Let H () the quantity of heat which has been converted into mechanical work.ArepresentBrepresentsCrepresentingDbeing represented

单选题Where do you configure SCREEN options?()Azones on which an attack might arriveBzones you want to protect from attackCinterfaces on which an attack might arriveDinterfaces you want to protect from attack

单选题A metal ring on the bottom of a block,to which the standing part of a tackle is spliced,is known as a(n)().AbecketBloopCswivelDeye

单选题Which tackle arrangement has the LEAST mechanical advantage().ASingle whipBGun tackleCLuff tackleDTwofold purchase