Q.1:
In the lever of third order, load W, effort P and fulcrum F are oriented as follows_________________?e
A.
W between P and F
B.
F between W and P
C.P between W and F
D.
W, P and F all on one side
Q.2:
The stress developed in a material at breaking point in extension is called__________?V
A.Breaking stress
B.
Fracture stress
C.
Yield point stress
D.
Proof stress
Q.3:
Hookes law holds good up to____________________?3
A.
yield point
B.limit of proportionality
C.
breaking point
D.
elastic limit
Q.4:
The unit of Youngs modulus is__________________?3
A.
mm/mm
B.
kg/cm
C.
kg
D.kg/cm2
Q.5:
It equal and opposite forces applied to a body tend to elongate it, the stress so produced is called______________________?{
A.
internal resistanpe
B.tensile stress
C.
transverse stress
D.
compressive stress
Q.6:
Modulus of rigidity is defined as the ratio of_________________?@
A.
longitudinal stress and longitudinal strain+
B.
volumetric stress and volumetric strain'
C.
lateral stress and lateral strain!
D.shear stress and shear strain
Q.7:
The ultimate tensile stress of mild steel compared to ultimate compressive stress is__________________?g
A.
same
B.more
C.
less
D.
more or less depending on other factors'
Q.8:
A thin mild steel wire is loaded by adding loads in equal increments till it breaks. The extensions noted with increasing loads will behave as under_________________?
A.
uniform throughout
B.
increase uniformly
C.
first increase and then decrease
D.increase uniformly first and then increase rapidly2
Q.9:
If the radius of wire stretched by a load is doubled, then its Youngs modulus will be_______________?h
A.
doubled
B.
halved
C.
become four times
D.
become one-fourth
Q.10:
Tensile strength of a material is obtained by dividing the maximum load during the test by the_________________?p