题目内容
（请给出正确答案）
A.折射
B.斯涅尔定律
C.色散
D.折射
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更多“deflection（）”相关的问题
![[图]A、向左偏转； Deflection to the left ;B、向右偏转...A、向左偏转](http://static.jiandati.com/9866966-chaoxing2016-1078060.jpeg)
A、向左偏转； Deflection to the left ;
B、向右偏转； Deflection to the right ;
C、不偏转； No deflection;
D、可能向左偏转，也可能向右偏转； It may deflect to the left or to the right;
A.deflection, nonlinear, does not
B.elongation, linear, does not
C.contraction, nonlinear, does
D.deflection, linear, does
A.derail
B.defection
C.departure
D.deflection
For the cantilever beam with length l, the deflection at the free end is
. If the beam length is reduced to one half of its original length, then the deflection at the free end should be
A、
B、
C、
D、
Which condition cannot be used to calculate the integration constants when the integration method is used to determine the deflection curve equation？
A、
B、
C、
D、
The statically indeterminate beam shown in figure Q. 1.13 is under a uniformly distributed transverse loading q. As the span l increases to 2l, the deflection of the mid-point C increases and
= (). (
is the initial deflection of the beam with the span l.)
A、16
B、8
C、4
D、2
A cantilever beam AB is loaded by a couple![A cantilever beam AB is loaded by a couple [图] at.](http://static.jiandati.com/102f3d0-chaoxing2016-893540.png)
at its free end (see fgure). The length of the beamis L=2.0 m , and the longitudinal normal strain at the top surface is![A cantilever beam AB is loaded by a couple [图] at.](http://static.jiandati.com/d795308-chaoxing2016-893541.png)
=0.0010 . The distance from the top surface of the beam to the neutral surface is c =85 mm . (a) Calculate the radius of curvature![A cantilever beam AB is loaded by a couple [图] at.](http://static.jiandati.com/669b68b-chaoxing2016-893542.png)
, the curvature![A cantilever beam AB is loaded by a couple [图] at.](http://static.jiandati.com/664edfe-chaoxing2016-893543.png)
, and the vertical deflection![A cantilever beam AB is loaded by a couple [图] at.](http://static.jiandati.com/4973326-chaoxing2016-893544.png)
at the end of the beam. (b) If allowable strain![A cantilever beam AB is loaded by a couple [图] at.](http://static.jiandati.com/8eb9e76-chaoxing2016-893545.png)
=0.0008 , what is the maximum acceptable depth of the beam？ [Assume that the curvature is unchanged from part(a)]. (c) If allowable strain= 0.0008 , c = 85 mm , and L= 4 m , what is deflection？![A cantilever beam AB is loaded by a couple [图] at.](http://static.jiandati.com/60a7499-chaoxing2016-893546.png)
Deflection involves the transfer of risk by:
A Contracting out to another party
B Developing schedule alternative.
C Establishing functions under the project manager to handle risk events.
D Disaster planning and responses.
E None of the above.
For the cantilever beam with length l, the deflection at the free end is
. If the beam length is reduced to one half of its original length, then the defection at the free end should be
A、
B、
C、
D、
A.worn main bearing journals
B.torsional stress deformation
C.slack thrust bearings
D.bearing shells shim dimensions
A velocity selector for charged particles uses perpendicular electric field E and magnetic field B as shown in the following figure. The critical velocity for a charged particle moving through without deflection is
A、
B、
C、
D、
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