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）
A band or collar on top end of a boom to which the topping lift, midships guy, and outboard guys are secured, is called the ______.
A.collar band
B.guy band
C.pad eye collar
D.spider band
参考答案
更多 “ A band or collar on top end of a boom to which the topping lift, midships guy, and outboard guys are secured, is called the ______.A.collar bandB.guy bandC.pad eye collarD.spider band ” 相关考题
考题
In cold, damp weather, the buildup of ice on airplane wings can pose significant aerodynamic problems. Which of the following effects would you expect?A.As ice builds up on the top of the wing, drag increases.B.As ice builds up on the top of the wing, lift increases.C.As ice builds up on bottom of the wing, lift decreases.D.All of the above
考题
Stress on the topping lift of a swinging boom can be reduced by ______.A.rigging a back stayB.raising the boomC.increasing the mechanical advantage of the cargo purchaseD.taking all slack out of the preventer
考题
A band or collar on the top end of a boom to which the topping lift，midships guy，and outboard guys are secured，is called the ______.A.collar bandB.guy bandC.pad eye collarD.spider band
考题
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
考题
In a married falls rig at the after end of a hatch，a boom is rigged in a fore and aft line through its heel．Stresses on the outboard guy will be LEAST if the guy is made fast at a point ______．A.Abreast the heelB.At right angles to the boom when viewed from aboveC.Aft of the heelD.Forward of the spiderband
考题
What is meant by the term“luffing the boom”of a crane ________．A.Stopping the boomB.Topping or lowering the boomC.Moving the boom left or rightD.All of the above
考题
Which part of a conventional cargo gear rig provides for vertical control and positioning of a boom ________．A.Cargo whipB.Gooseneck fittingC.Spider bandD.Topping lift
考题
Which part provides for transverse control and positioning of a boom in a conventional yard and stay system ________．A.GuyB.ShroudC.SpiderD.Topping lift
考题
The jumbo boom can （）.A、lift heavy cargoB、load and unloadC、join ropes togetherD、lift light cargo
考题
The （）(千斤滑车) can run the gooseneck.A、heavy derrickB、pulley blockC、topping lift blockD、guy tackle
考题
单选题Which part of a conventional cargo gear rig provides for vertical control and positioning of a boom（）.A
Cargo whipB
Gooseneck fittingC
Spider bandD
Topping lift
考题
单选题A flounder plate，on a topping lift，is（）.A
a fairlead blockB
a swivel pin for the topping lift blockC
a triangular steel plate with a hole at each cornerD
the lower block of a multiple part topping lift
考题
单选题The parts of the derrick are: derrick boom rest, gooseneck, center guy, stay, topping lift, topping lift block and so on.（）A
吊杆的部件有：吊杆支架、鹅颈头、中心稳索、支索、千斤索和千斤索滑车组等。B
吊杆的部件有：鹅颈头、中心稳索、千斤索、侧稳索、千斤索滑车组和支索等。C
吊杆的部件有：中心稳索、侧稳索、吊杆支架、鹅颈头、千斤索、和千斤索滑车组等。D
吊杆的部件有：侧稳索、中心稳索、鹅颈头、吊杆支架、千斤索、和千斤索滑车组等。
考题
单选题What is meant by the term TOPPING THE BOOM?（）A
Lowering the boomB
Raising the boomC
Spotting the boom over the deckD
Swinging the boom athwartships
考题
单选题Stress on the topping lift of a swinging boom can be reduced by（）.A
rigging a back stayB
raising the boomC
increasing the mechanical advantage of the cargo purchaseD
taking all slack out of the preventer
考题
单选题he heel block is located（）.A
at the base of the boomB
at the cargo hookC
near the midships guyD
near the spider band
考题
单选题A vessel has an amidships superstructure. Which location would be most suitable for ondeck stowage of automobiles?（）.A
On top of No.1 hatchB
Beside the hatches, forward of the midships houseC
On top of the hatch immediately forward of the midships houseD
On top of the hatch immediately aft of the midships house
考题
单选题A band or collar on the top end of a boom which the topping lift, midships guy, and outboard guys are secured, is called the（）.A
collar bandB
guy bandC
pad eye collarD
spider band
考题
单选题A warp end may be fitted for operating the derrick topping wire which adjusts the derrick （）.A
lengthB
slackC
heightD
rotation direction
考题
单选题A vessel has an amidships superstructure. Which location would be most suitable for on-deck stowage of automobiles?（）.A
On top of No.1 hatchB
Beside the hatches，forward of the midships houseC
On top of the hatch immediately forward of the midships houseD
On top of the hatch immediately aft of the midships house
考题
单选题A tackle by which the outer end of a boom is raised and lowered is the topping（）.A
boomB
liftC
raiseD
tackle
考题
单选题（） may be fitted for operating the derrick topping lift (the wire which adjusts the derrick height).A
A capstanB
A holdC
A warp endD
A mooring drum
考题
单选题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
考题
单选题When viewed from above，the best position for the guy in relation to the boom is（）.A
At a 45° angleB
At right anglesC
4 feet aft of the heel of the boomD
Parallel to the boom
考题
单选题A single heavy wire made up for the topping lift is called a（）.A
baleB
spanner wireC
bull lineD
working guy
考题
单选题In a married falls rig at the after end of a hatch，a boom is rigged in a fore and aft line through its heel.Stresses on the outboard guy will be LEAST if the guy is made fast at a point（）.A
Abreast the heelB
At right angles to the boom when viewed from aboveC
Aft of the heelD
Forward of the spiderband
考题
单选题In a married falls rig at the after end of a hatch , a boom is rigged in a fore and aft line through its heel . Stresses on the outboard guy will be least if the guy is made fast at a point（）.A
abreast the heelB
at right angles to the boom when viewed from aboveC
aft of the heelD
forward of the spiderband
考题
单选题Which part provides for transverse control and positioning of a boom in a conventional yard and stay system（）.A
GuyB
ShroudC
SpiderD
Topping lift
热门标签
最新试卷