Strength of Materials

A. angstrom
B. light year
C. micron
D. millimeter
E. milestone

A. the algebraic sum of the resolved parts of the forces in the given direction
B. the sum of the resolved parts of the forces in the given direction
C. the difference of the forces multiplied by the cosine of 9
D. the sum of the forces multiplied by the sine of 9
E. the sum of the forces multiplied by the tangent of 9

A. if any number of forces acting at a point can be represented by the sides
of a polygon taken in order, then the forces are in equilibrium
B. if any number of forces acting at a point can be represented in direction and magnitude by the sides of a polygon, then the forces are in equilibrium
C. if a polygon representing forces acting at a point is closed then forces are in equilibrium
D. if any number of forces acting at a point can be represented in direction and magnitude by the sides of a polygon taken in order, then the forces are in equilibrium
E. none of the above

A. not a replace them by a single force
B. to replace them by a single force
C. to replace them by a single force through C.G.
D. to replace them by a couple
E. to replace them by a couple and a force

A. introduce internal stresses
B. balance the other forces acting on it
C. retard its motion
D. change its motion
E. all of the above

A. one point
B. two points
C. plane
D. perpendicular planes
E. different planes

A. kilogram
B. newton
C. watt
D. dyne
E. joule

A. magnitude
B. direction
C. point of application
D. all of the above
E. none of the above

A. magnitude
B. direction
C. position or line of action
D. all of the above
E. none of the above

A. one point
B. one plane
C. different planes
D. perpendicular planes
E. different points