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
Electric cargo winches have an overload safety device which normally cuts the current to the winch motor（）.
A
after torque causes line pull to exceed the rated capacity of the winch
B
before the line pull reaches the rated capacity of the winch
C
when the line pull reaches the breaking strength of the fall
D
before the safe working load of the fall is reached
参考答案
参考解析
解析：
暂无解析
更多 “单选题Electric cargo winches have an overload safety device which normally cuts the current to the winch motor（）.A after torque causes line pull to exceed the rated capacity of the winchB before the line pull reaches the rated capacity of the winchC when the line pull reaches the breaking strength of the fallD before the safe working load of the fall is reached” 相关考题
考题
Which protocol can cause overload on a CPU of a managed device?()
A. NetflowB. WCCPC. IP SLAD. SNMP
考题
Which certificate is always issued by the China Classification Society？ ______.A.Loadline certificateB.Safety equipment certificateC.Safety construction certificateD.Safety cargo gear certificate
考题
A vessel used for international service shall possess ______ valid for duration of charter party showing winches and derricks in order．A.International Cargo Gear CertificateB.International Loadline CertificateC.International Safety Construction CertificateD.International Seaman Identification
考题
______ is issued under the provision of International Convention for the Prevention of Pollution from Ships，1973，as modified by the Protocol of 1978 relating thereto.A.INTERNATIONAL OIL POLLUTION PREVENTION CERTIFICATEB.CARGO SHIP SAFETY CONSTRUCTION CERTIFICATEC.CARGO SHIP SAFETY EQUIPMENT CERTIFICATED.CARGO SHIP SAFETY RADIOTELEPHONY CERTIFICATE
考题
Which statement(s) is/are TRUE concerning crane cargo operations?A.Do not exceed rated load capacity of crane and container spreader or slingsB.During any cargo handling operation，the safety of personnel is paramountC.Cargo handlers must be outfitted with adequate protection from personal injuryD.All the above
考题
Which device is designed to automatically hold the load if power should fail to an electric winch?A.Pneumatic brakeB.Electromagnetic brakeC.Hand brakeD.Motor controller
考题
If an attempt is made to hoist a load that exceeds the capacity of an electric winch，an overload safety device causes a circuit breaker to cut off the current to the winch motor ______．A.when the line pull reaches the rated winch capacityB.after the line pull exceeds the rated winch capacityC.after a short build-up of torqueD.immediately
考题
Which instrument is suitable for determining the presence of explosive concentrations of fuel oil vapors in tanks ________．A.A flame safety lampB.A combustible gas indicatorC.A liquid cargo meterD.All of the above
考题
The moisture equilibrium chart can be used to determine the ______．A.Absolute moisture content of the air surrounding a hygroscopic cargo when moisture equilibrium existsB.Dew point temperature that the air surrounding a hygroscopic commodity will have when in moisture equilibrium with that commodityC.Enthalpy of the air surrounding a hydroscopic cargo which is in moisture equilibrium with the cargoD.Temperature at which moisture equilibrium will occur in a cargo hold containing a hygroscopic cargo
考题
很多船上在每个舱口处都有两个吊杆及两台起货机。（）A、Many ships have two derricks at each hatch.B、Many ships have two winches at each hatch.C、Many ships have two derricks and two winches at each hatch.D、Many ships have two derricks and two winches at each hatch cover.
考题
An Intermediate System experiencing memory problems indicates that it may have incomplete data by setting which bit in its LSP?（）A、more bitB、partition bitC、attached bitD、overload bit
考题
We have received your letter of September 12，（）we are glad to know that you are interested in our electric heaters.A、whichB、at whichC、from whichD、in which
考题
Which protocol can cause overload on a CPU of a managed device?（）A、NetflowB、WCCPC、IP SLAD、SNMP
考题
单选题Which item may be substituted for，in the fireman’s outfit，on a cargo vessel?（）A
fire axB
flashlightC
rigid helmetD
flame safety lamp
考题
单选题You are cleaning the tanks after carrying a cargo of crude oil. Which statement is TRUE? （）A
Washing water should be recirculated if possible because it has the same electric potential as the cargo tank being cleanedB
The hoses to portable cleaning machines should be disconnected before the machines are removed from the tankC
The principal hazard with steaming cargo tanks is raising the ambient temperature above the flame point of the cargo residueD
Steam cleaning and water washing are both capable of generating electrostatic charges within a tank
考题
单选题The proper safety guidelines for handling any device specific consumables can be found in which of the following documentation？（）A
Material Safety Data SheetsB
Installation GuidesC
Consumer ReportsD
Devices Parts Catalog
考题
单选题A carburetor is required to have a safety device called a(n)（）.A
pressure releaseB
backfire flame arrestorC
automatic shut offD
flow valve
考题
单选题Entries should be made in a Ro-Ro vessel’s cargo-securing device record book for（）.A
procedures for accepting cargo securing devicesB
procedures for maintaining and repairing cargo-securing devicesC
record of cargo securing device inspectionsD
All of the above
考题
单选题Which statement(s) is/are TRUE concerning crane cargo operations? （）A
Do not exceed rated load capacity of crane and container spreader or slingsB
During any cargo handling operation，the safety of personnel is paramountC
Cargo handlers must be outfitted with adequate protection from personal injuryD
All the above
考题
单选题Which of the actions listed and instituted on your part will have the greatest lasting effect on the crew with respect to safety?（）A
Posting posters illustrating practicesB
Showing video tapes of actual accidentsC
Incorporating safety practices in daily routineD
Publishing comprehensive safety rules
考题
单选题The cargo gear includes（）.A
derrick, winches, cargo ropes and wiresB
derricks, windlass, capstanC
hatch covers, derricks, windlassD
cranes, hatches, lashing wires
考题
单选题Roll-on／roll-off ships are equipped with（）.A
cargo elevatorsB
conveyor beltsC
rampsD
derricks and winches for cargo handling
考题
单选题A vessel used for international service shall possess （）valid for duration of charter party showing winches and derricks in order.A
International Cargo Gear CertificateB
International Loadline CertificateC
International Safety Construction CertificateD
International Seaman Identification
考题
单选题If an attempt is made to hoist a load that exceeds the capacity of an electric winch，an overload safety device causes a circuit breaker to cut off the current to the winch motor（）.A
when the line pull reaches the rated winch capacityB
after the line pull exceeds the rated winch capacityC
after a short build-up of torqueD
immediately
考题
单选题The moisture equilibrium chart can be used to determine the（）.A
Absolute moisture content of the air surrounding a hygroscopic cargo when moisture equilibrium existsB
Dew point temperature that the air surrounding a hygroscopic commodity will have when in moisture equilibrium with that commodityC
Enthalpy of the air surrounding a hydroscopic cargo which is in moisture equilibrium with the cargoD
Temperature at which moisture equilibrium will occur in a cargo hold containing a hygroscopic cargo
考题
单选题Vessel shall possess（）valid for duration of charter Party showing winches and derricks in order.A
International Cargo Gear CertificateB
International Loadline CertificateC
International Safety Construction CertificateD
International Seaman Identification
考题
单选题Which device is designed to automatically hold the load if power should fail to an electric winch?（）A
Pneumatic brakeB
Electromagnetic brakeC
Hand brakeD
Motor controller
热门标签
最新试卷
