STRENGTH OF MATERIALS QUIZ

D Alembert’s principle is used for

stability of floating bodies

designing safe structures

reducing the problem of kinetics to equivalent statics problem

determining stresses in the truss

TRUE ANSWER : ?
YOUR ANSWER : ?

Coulomb friction is the friction between

two lubricated surfaces

two dry surfaces

solids and liquids

bodies having relative motion

TRUE ANSWER : ?
YOUR ANSWER : ?

A flywheel on a motor goes from rest to 1000 rpm in 6 sec. The number of revolutions made is nearly equal to

25

250

100

50

TRUE ANSWER : ?
YOUR ANSWER : ?

A heavy ladder resting on floor and against a vertical wall may not be in equilibrium, if

the floor is rough, the wall is smooth

the floor and wall both are smooth surfaces

the floor is smooth, the wall is rough

the floor and wall both are rough sur-faces

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is not a scalar quantity

density

mass

acceleration

volume

TRUE ANSWER : ?
YOUR ANSWER : ?

A particle inside a hollow sphere of radius r, having coefficient of friction -rr can rest upto height of

r/A

r/2

r/%

0.134 r

TRUE ANSWER : ?
YOUR ANSWER : ?

If n = number of members andy = number of joints, then for a perfect frame, n =

2/-3

j-2

(b)2j-l

(d)3/-2

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is not the unit of work, energy and heat ?

kg m

hp

kWhr

kcal

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is the example of lever of first order?

Pair of scissors

Arm of man

All of the listed here

Pair of clinical tongs

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is not the unit of pressure ?

newton.

atmosphere

kg/cm

mm of wcl

TRUE ANSWER : ?
YOUR ANSWER : ?

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