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Questions
The bending moment on a section is maximum where shear force is
ক
zero
খ
minimum
গ
maximum
ঘ
changing sing
If the depth of water in an open channel is greater than the critical depth, the flow is called
ক
turbulent flow
খ
critical flow
গ
torrential flow
ঘ
tranquil flow
The fuel mostly used in cement industry and in metallurgical processes is
ক
wood charcoal
খ
bituminous cock
গ
pulverized coal
ঘ
coke
which of the following refrigerant has the lowest freezing point?
ক
Freon -11
খ
Freon -12
গ
Freon -22
ঘ
Ammonia
Transverse fillet welds are designed for
ক
tensile strength
খ
shear strength
গ
bending strength
ঘ
none of these
The weight of a body is due to
ক
Centripetal force of earth
খ
Gravitational pull exerted by the earth
গ
Force of attraction experienced by par-ticles
ঘ
Gravitational force of attraction towards the centre of the earth
Hook's law holds good up to
ক
Yield point
খ
Elastic limit
গ
Plastic limit
ঘ
Breaking point
Center of percussion is
ক
The point of C.G.
খ
The point of metacenter
গ
The point of application of the resultant of all the forces tending to cause a body to rotate about a certain axis
ঘ
Point of suspension
The thermal efficiency of diesel engines is about
ক
15%
খ
30%
গ
50%
ঘ
70%
The property of fluid by virtue of which it offers resistance to shear is called
ক
surface tension
খ
adhesion
গ
cohesion
ঘ
viscosity
Surface energy per unit area of a surface is numerically equal to
ক
atmospheric pressure
খ
surface tension
গ
force of adhesion
ঘ
force of cohesion
Pure iron is the structure of
ক
Ferrite
খ
Pearlite
গ
Austenite
ঘ
Ferrite and cementite
The metallic structure of mild steel is
ক
Body centered cubic
খ
Face centered cubic
গ
Hexagonal close packed
ঘ
Cubic structure
Kinematic viscosity is dependent upon
ক
Pressure
খ
Distance
গ
Density
ঘ
Flow
The increase of temperature results in
ক
Increase in viscosity of gas
খ
Increase in viscosity of liquid
গ
Decrease in viscosity of gas
ঘ
Decrease in viscosity of liquid