Deflection of a Beam

What does the slope (dy/dx) of a beam represent?

• The change in deflection with respect to position along the beam.

• The maximum bending moment.

• The shear force distribution.

• The axial load.

Which boundary condition corresponds to a cantilever beam?

• Both ends fixed.

• One end fixed, one end free.

• Both ends free.

• One end fixed, one end simply supported.

What type of support allows rotation about any axis but prevents movement in the horizontal and vertical directions?

• Pin or hinge support

• Roller support

• Fixed support

• Cantilever support

A beam supported on more than two supports is called

• simply supported beam

• 
  fixed beam

• overhanging beam

• 
  

  continuous beam

A rectangular beam of length l supported at its two ends carries a central point load W. The maximum deflection occurs

• at the ends

• 
  at l/3 from both ends

• 
  at the centre

• 
  none of these

What does the Modulus of Elasticity describe?

• An objects stiffness based on its shape

• An objects stiffness based on its chemical properties

• An objects rotation because of inertia

• 
  

  An objects rotation because of force

At the fixed end of cantilever beam, deflection is __________ and slope is ___________.

• Maximum, Maximum

• Zero, Maximum

• Maximum, Zero

• 
  Zero, Zero

The product of Modulus of Elasticity (E) and Moment of Inertia (I) is called as

• Polar moment

• Flexural Stiffness/Rigidity

• Stiffness

• Modulus of rigidity

A roller support allows rotation about any axis and translation (horizontal movement) in which direction?

• Parallel to the surface on which it rests

• Perpendicular to the motion of the roller

• Diagonal to the surface

• None of the above

Principle of superposition is applicable when

• Deflections are small

• When deflections are not linear and large

• When load is dynamic

• none of the above