STRENGTH OF MATERIALS QUIZ

r/2

0.134 r

r/%

r/A

joule

newton

pascal

watt

mechanical advantage is greater than velocity ratio

mechanical advantage is less than velocity ratio

mechanical advantage is equal to velocity ratio

mechanical advantage is unity

the mid point of its axis

the bottom surface

All of these

the center of heavy portion

Wtan(a-<)>)

Wcos(a + )

Wsin(a + <(>)

Wtan(a + <)>)

100

50

250

25

produce moment of a couple

cannot balance each other

are equivalent

balance each other

angstrom

light year

millimeter

milestone

dependent on the materials of contact surface

independent of the area of contact surfaces

proportional to velocity of sliding

proportional to normal load between the surfaces

the angle of repose is equal to angle of friction

the sine of the angle of repose is equal to coefficient to friction

the tangent of the angle of friction is equal to coefficient of friction

the tangent of the angle of repose is equal to coefficient of friction