单选题jumbo boom（）A重吊杆B吊杆C桅杆D桅梯
单选题
jumbo boom（）
A
重吊杆
B
吊杆
C
桅杆
D
桅梯
参考解析
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相关考题：
________ is used for heaving up and slacking away the anchor and chainA.A winchB.A windlassC.A craneD.A jumbo boom
On a crane, the boom indicator tells the operator what angle the boom angle is compared to the ______.A.vertical positionB.horizontal positionC.boom stop angleD.minimum radius angle
The boom stops are installed on an offshore crane to ______.A.prevent the boom from being raised too highB.prevent the boom from swingingC.support the boom when not in useD.prevent the boom from being lowered
With a given load on the cargo hook，tension in a single span topping lift ______.A.increases as the boom's angle to the horizontal increasesB.is at a maximum when the boom is at a 45° angle to the horizontalC.increases as the boom's angle to the horizontal decreasesD.decreases as the boom's angle to the horizontal decreases
With a given load on the cargo hook，the thrust on a cargo boom ______.A.increases as the angle to the horizontal increasesB.increases as the angle to the horizontal decreasesC.is greatest at an angle of 45° and decreases as the boom is raised or loweredD.is least at an angle of 45° and increases as the boom is raised or lowered
汉译英：“集装袋；塑料袋；塑编袋”，正确的翻译为（ ）。A.jumbo bag；plastic woven bag；plastic bagB.jumbo bag；plastic bag；plastic woven bagC.plastic bag；jumbo bag；plastic woven bagD.plastic woven bag；plastic bag；jumbo bag
The jumbo boom can lift heavy cargo, the gantry crane can hoist containers.（）A、重吊杆吊重货和集装箱货。B、龙门吊能起吊重件货，重吊杆能起吊集装箱。C、重吊杆能起吊重件货，龙门吊能起吊集装箱。D、龙门吊吊重货和集装箱货。
ASP（音频控制面板）的正常位置是（）A、MASK／BOOM开关在BOOM位；ALT／NORM开关在NORM位B、MASK／BOOM开关在MASK位；ALT／NORM开关在NORM位C、MASK／BOOM开关在MASK位；ALT／NORM开关在ALT位D、MASK／BOOM开关在BOOM位；ALT／NORM开关在ALT位
What is required for proper implementation of jumbo frame support on a Cisco Nexus 2000 Series Fabric Extender？（） A、 The interface configured as FEX fabric requires the MTU to be set to jumbo.B、 The service policy must be applied to the system QoS.C、 The device defaults to jumbo frame support； no changes are required.D、 The switchport in the FEX interface must be set to MTU 9216.
单选题The （）(笨重货) must be handled by jumbo boom or shore crane.Aawkward cargoBdrummed cargoCcased cargoDheavy cargo
单选题The jumbo boom can lift heavy cargo, the gantry crane can hoist containers.（）A重吊杆吊重货和集装箱货。B龙门吊能起吊重件货，重吊杆能起吊集装箱。C重吊杆能起吊重件货，龙门吊能起吊集装箱。D龙门吊吊重货和集装箱货。
单选题What is meant by the term TOPPING THE BOOM?（）ALowering the boomBRaising the boomCSpotting the boom over the deckDSwinging the boom athwartships
单选题The boom stops on a pedestal crane prevent the boom from（）.Abeing raised too highBswinging at seaCoverloading when not in useDbeing lowered too low
单选题What is meant by the term“luffing the boom”of a crane（）．AStopping the boomBTopping or lowering the boomCMoving the boom left or rightDAll of the above
单选题The boom stops are installed on an offshore crane to（）.Aprevent the boom from being raised too highBprevent the boom from swingingCsupport the boom when not in useDprevent the boom from being lowered
单选题What is required for proper implementation of jumbo frame support on a Cisco Nexus 2000 Series Fabric Extender？（）A The interface configured as FEX fabric requires the MTU to be set to jumbo.B The service policy must be applied to the system QoS.C The device defaults to jumbo frame support； no changes are required.D The switchport in the FEX interface must be set to MTU 9216.
单选题For a given weight of cargo，the stress on the heel block of a cargo boom（）.Aincreases as the cargo closes the head while hoistingBincreases if the cargo runner is doubled upCdecreases as the boom is topped to a greater angleDis determined by the thrust stresses on the boom
单选题我们每航次拆卸一次吊杆。（）AWe dismantle the jumbo boom twice a voyage.BWe dismantle the derricks once a voyage.CWe examine the derricks once a voyage.DWe dismantle the heavy derricks once a voyage.
单选题A boom vang（）.Aholds the boom down and flattens the main sailBdraws the head of the sail to windwardCtautens the standing riggingDdouses the gaff topsail
单选题With a given load on the cargo hook，the thrust on a cargo boom（）.Aincreases as the angle to the horizontal increasesBincreases as the angle to the horizontal decreasesCis greatest at an angle of 45° and decreases as the boom is raised or loweredDis least at an angle of 45° and increases as the boom is raised or lowered
单选题With a given load on the cargo hook，tension in a single span topping lift（）.Aincreases as the boom's angle to the horizontal increasesBis at a maximum when the boom is at a 45° angle to the horizontalCincreases as the boom's angle to the horizontal decreasesDdecreases as the boom's angle to the horizontal decreases
单选题The jumbo boom can （）.Alift heavy cargoBload and unloadCjoin ropes togetherDlift light cargo
单选题The boom indicator on a crane will indicate the（）.Alength of the boomBangle of the boomClifting capacity of the boomDdirection of the boom