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
Which of the motors for the devices listed below is fitted with an instantaneous overload relay?（）
A
Fan
B
Pump
C
Winch
D
Machine tool
参考答案
参考解析
解析：
暂无解析
更多 “单选题Which of the motors for the devices listed below is fitted with an instantaneous overload relay?（）A FanB PumpC WinchD Machine tool” 相关考题
考题
Of the items listed below, which one(s) should be saved into the process control block?Ⅰ.Process name and process numberⅡ.Process running informationⅢ.Current opened file informationA．Ⅰ and ⅡB．Ⅰ and ⅢC．Ⅱ and ⅢD．Ⅰ、Ⅱ and Ⅲ
考题
Which of the processes listed would be the most satisfactory method to use to lower the humidity of the air being circulated by an air conditioning system?A.Cooling the air to a temperature just above dew pointB.Heating the air to a point at which moisture will boil off ,then re-cooling itC.Cooling the air to a point below dew point, then reheating itD.Heating the air and then cooling it to a point below dew point
考题
Of all the extingushing agents listed below, which one has the greatest capacity for heat absorption?______.A.Water fogB.Carbon dioxideC.Dry chemicalD.Solid stream of water
考题
Which of the listed devices may be used as a digital device?A.variable resistorB.diodeC.strain gaugeD.thermistor
考题
Which of the listed devices is used to measure pressure and convert it to an electrical signal?A.TransducerB.ReducerC.TransformerD.Rectifier
考题
Which of the listed problems could produce a high absolute pressure within a flash type evaporator?A.production of high salinity distillateB.seawater feed temperature below 165℃C.a leak in the first stage demisterD.a cracked distillate pump vent line
考题
According to Regulations, a power driven auxiliary steering gear for a vessel capable of a 12 knot service speed, must be able to meet the rudder movement requirements at which of the minimum vessel speeds listed below?A.6 knotsB.7 knotsC.9 knotsD.12 knots
考题
You have done a partial migration from 802.1D STP to 802.1w STP. Which of the following is true？（）A、802.1D and 802.1w interoperate only when the 802.1D STP domain supports rapid convergence.B、Ports leading to 802.1D devices will run in compatibility mode， while the rest of the ports will run in 802.1w mode.C、This is an invalid configuration and a partial migration cannot be done.D、The bridge timers will be set to match the 802.1D devices.E、A secondary root bridge will always be populated within the 802.1D domain.F、If the root bridge is selected within the 802.1D domain， the whole STP domain will run in 802.1D compatibility mode.G、In partially migrated 802.1w networks， it is recommended to keep the STP diameter below 4.
考题
In which cases listed below, the class would not being suspended or withdrawn（）A、Annual/Intermediate Surveys not complete within three months of due dateB、Repairs made are not acceptable to classC、Accommodation common toilet flushing device isn’t workingD、Not complying with regulations
考题
If a vessel subject to PSC inspection, PSC Officer shall give the inspection to the Captain, the given timeframe for rectification of each deficiency is commonly given in a coded form which called “action code”, which code listed below is used for indication of detention of the vessel?（）A、10B、30C、17D、16
考题
单选题If a vessel subject to PSC inspection, PSC Officer shall give the inspection to the Captain, the given timeframe for rectification of each deficiency is commonly given in a coded form which called “action code”, which code listed below is used for indication of detention of the vessel?（）A
10B
30C
17D
16
考题
单选题Several people, （） I listed below, have not submitted their reports.A
thatB
whomC
whichD
who
考题
单选题Which of the listed devices is used to measure pressure and convert it to an electrical signal?（）A
TransducerB
ReducerC
TransformerD
Rectifier
考题
单选题Which of the listed devices could be used as a substitute for a ring grooving tool?（）A
Steel brushB
Fine emery cloth or steel woolC
A section of the removed compression ringD
A case hardened scraper
考题
单选题Which of the terms listed below represents the operational speed at which excessive engine vibration is created?（）A
Non-harmonic speedB
Critical speedC
Maximum speedD
Design maximum speed
考题
单选题In an internal combustion engine, which of the devices listed will force the compression rings to seal the compression gases in the space above the piston?（）A
Used of bimetallic piston ringsB
Ring gap pre-tensioningC
Thermal increase in ring-end clearanceD
Gas pressure acting against the back of the ring
考题
单选题All of the following operating characteristics are listed on the name-plates of motors used aboard ship except the（）A
temperature riseB
input kilowattsC
horsepowerD
operating voltage
考题
单选题According to Regulations, a power driven auxiliary steering gear for a vessel capable of a 20 knot service speed, must be capable of producing a rudder movement at which of the minimum speeds listed below?（）A
7 knotsB
10 knotsC
15 knotsD
20 knots
考题
单选题In which cases listed below, the class would not being suspended or withdrawn（）A
Annual/Intermediate Surveys not complete within three months of due dateB
Repairs made are not acceptable to classC
Accommodation common toilet flushing device isn’t workingD
Not complying with regulations
考题
单选题Which of the devices listed, when used on an electro-hydraulic steering gear, keeps the movement of the redder closely in step with the steering wheel?（）A
The follow-up gearB
The rudder angle indicatorC
The synchronous electric transmitterD
A rudder angle limit switch
考题
单选题0f all the extinguishing agents listed below, which one has the greatest capacity for heat adsorption?（）.A
Water fogB
Carbon dioxideC
Dry chemicalD
Solid stream of water
考题
单选题Which of the listed devices could be used as a ring groove tool during preparation for the installation of new rings?（）A
Steel brushB
Fine emery cloth or steel woolC
A section of the removed compression ringD
A case hardened scraper
考题
单选题Which of the devices listed is common to all types of pumps?（）A
A power end and fluid endB
A propeller and educatorC
A volute and impellerD
A turbine and piston
考题
单选题Which of the processes listed would be the most satisfactory method to use to lower the humidity of the air being circulated by an air conditioning system?（）A
Cooling the air to a temperature just above dew pointB
Heating the air to a point at which moisture will boil off ,then re-cooling itC
Cooling the air to a point below dew point, then reheating itD
Heating the air and then cooling it to a point below dew point
考题
单选题Which of the listed devices would be installed at a control system air pressure reducing station?（）A
Moisture separatorB
Vacuum breakerC
LubricatorD
Non-return valve
考题
单选题Which one listed below is most dangerous to elephants?A
A disgruntled farmer with a rifle.B
Poachers.C
Mice.D
Bees.
热门标签
最新试卷
