单选题Beams are cambered to（）.Aincrease their strengthBprovide drainage from the decksCrelieve deck stressDAll of the above
单选题
Beams are cambered to（）.
A
increase their strength
B
provide drainage from the decks
C
relieve deck stress
D
All of the above
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相关考题：
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第二十二篇 RealWld Robots When you think of a robot, do you envision ashiny, metallic device having the same general shape as a human being,perfming humanlike functions, responding to your questions in a monotonevoice accentuated by high-pitched tones beeps? This is the way many of usimagine a robot, but in the real wld, a robot is not humanoid at all. Insteada robot often is a voiceless, box-shaped machine that efficiently carries outrepetitive dangerous functions usually perfmed by humans. Today’s robot is me than an automatic machine that perfms one taskagain again. A modern robot is programmed with varying degrees ofartificial intelligence—that is, a robot contains acomputer program that tells it how to perfm tasks associated with human intelligence,such as reasoning, drawing conclusions, learning from past experience. A robot does not possess a human shape fthe simple reason that a two-legged robot has great difficulty remainingbalanced. A robot does, however, move from place to place on wheels axlesthat roll rotate. A robot even has limbs that swivel move incombination with ts mots. To find its way in its surroundings1, arobot utilizes various built-in senss. Antennae attached to the robot’s base detect anything they bump into. If the robot starts to teeteras it moves on an incline, a gyroscope a pendulum inside it senses thevertical differential. To determine its distance from an object how quicklyit will reach the object，the robot bounces beams oflaser light ultrasonic sound waves off obstructions in its path2. These other senss constantly feed infmation to the computer, which then analyzesthe infmation crects adjusts the robot’sactions. As science technology advance, the robot too will progress in itsfunctions use of artificial-intelligence programs. 词汇： envision v. 想象，预想 device n. 装置 accentuate v. 强调，重读 artificial intelligence n. 人工智能 limb n. 臂 antennae n. 天线 incline v. 倾斜 pendulum n. 钟摆 ultrasonic adj. 超声的 metallic adj. 金属的 monotone n. 单调的 humanoid adj. 像人的 axle n. 轮轴 rotate v. 旋转 swivel n. 旋转 teeter v. 摇晃 gyroscope n. 陀螺仪，回转仪 vertical n. 直立的 注释： 1.To find its way in its surroundings...：为了在周围找到路…… 2.the robot bounces beams of laser light ultrasonic sound waves off obstructions in its path：机器人发射激光束和超声波，反射到障碍物上(以此来探知路径)。 练习：3.The last paragraph suggests that futurerobots will beA me humanlike inbehavi actions.B me like automaticmachines.C better able to moveon inclines.D better equippedwith laser light senss.
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单选题Floors aboard ship are（）.Aalso called decksBvertical transverse plates connecting the vertical keel with the margin platesClarge beams fitted in various parts of the vessel for additional strengthDfound in passenger and berthing spaces only
单选题Floors aboard ship are（）.Aframes to which the tank top and bottom shell are fastened on a double bottomed shipBtransverse members of the ships frame which support the decksClongitudinal beams in the extreme bottom of a ship from which the ships ribs startDlongitudinal angle bars fastened to a surface for strength
单选题Floors aboard ship are（）.Aframes to which the tank top and bottom shell are fastened on a double bottomed shipBtransverse members of the ships frame which support the decksClongitudinal beams in the extreme bottom of a ship from which the ship's ribs startDlongitudinal angle bars fastened to a surface for strength
单选题Between the side frames on a vessel，support for the deck beams is provided by（）.AstanchionsBbracketsCweb framesDdeck stringers
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单选题Signs of racking stresses generally appear at the（）.Abow and stern shell frames and platingBjunction of the frames with the beams and floorsCgarboard strake，at each side of the keelDthrust bearing of the main shaft
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单选题The deck loads on a ship are distributed through the deck beams to the（）.AframesBhullCstringersDplates
单选题Beams are cambered to（）.Aincrease their strengthBprovide drainage from the decksCrelieve deck stressDAll of the above
单选题The purpose of cant frames in steel vessel is（）.ATo support the overhang of the sternBTo strength the plating against the pounding of the seaCTo add srength to the deck beams which support the weather deckDTo support the plating of a cylindrical tank
单选题What is the purpose of cant frames in steel vessels? （）ATo support the overhang of the sternBTo provide strength to shell plating at the sternCTo add strength to the deck beams which support the weather decksDTo support the plating of a cylindrical tank
单选题The fore and aft run of deck plating which strengthens the connection between the beams and the frames and keeps the beams square to the shell is called the（）.Agarboard strakeBlimber strakeCsheer strakeDstringer strake
单选题The floors in a vessel’s hull structure are kept from tripping，or folding over，by（）.Aface platesBbottom longitudinalsClongitudinal deck beamsDtransverse deck beams
单选题The athwartship hull structural members of a ship are（）.AstringersBgirdersCbreasthooksDdeck beams