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Worksheetstechnical quiz for 2nd years
Total questions: 20
Worksheet time: 10mins
A number of forces acting at a point will be in equilibrium,if
both c,d
Sum of all the forces is zero
sum of resolved parts in the vertical direction is zero
sum of resolved parts in the horizontal direction is zero
A couple produces
translatory motion
Rotational motion
combined translatory and rotational motion
None of the above
Moment of inertia is the
second moment of force
second moment of area
second moment of mass
all of these
A spherical body is symmetrical about its perpendicular axis.According to Routh's rule,the moment of inertia of a body about an axis passing through its centre of gravity is
MS/3
MS/4
MS/5
none of the above
when a cantilever beam is loaded with concentrated loads,the bending moment diagram will be a
horizontal straight line
vertical straight line
inclined straight line
parabolic curve
.A continuous beam is one which is
fixed at both ends
fixed at one end and free at the other end
supported on more than two supports
extending beyond the supports
The heat and work are mutually convertible.This statement is called______ law of thermodynamics.
zeroth
first
second
kelvin-plank's law
the behaviour of superheated vapour similar to that of
perfect gas
air
steam
odinary gas
the hardness is the property of a material due to which it
can be drawn into wires
breaks with little permanent distortion
can cut another material
can be rolled or hammered into thin sheets
free carbon in iron makes the metal
soft and gives a coarse grained crystalline structure
soft and gives a fine grained crystalline structure
hard and gives coarse grained crystalline structure
hard and gives a fine grained crystalline structure
A steel alloy containing 36% nickel is called
stainless steel
high speed steel
invar
heat resisting steel
the defect which takes place due to imperfect packing of atom during crystallization is known as
line defect
surface defect
point defect
none of these
specify the sequence correctly
grain growth, recrystallization,stress relief
stress relief,grain growth, recrystallization
stress relief, recrystallization, grain growth
grain growth,stress relief, recrystallization
A steel with 0.8% carbon and 100% pearlite is called
eutectoid steel
hypo-eutectoid steel
hyper-eutectoid steel
none of these
Cementite consist of
13% carbon and 87% ferrite
13% cementite and 87%ferrite
13% ferrite and 87% cementite
6.67% carbon and 93.33% iron
.Monel metal is an alloy of
nickel and copper
nickel and chromium
nickel, chromium and iron
copper and chromium
The heat and mechanical energies are mutually convertible.this statement was established by
boyle
charles
joule
none of these
The sum of internal energy and the product of pressure and volume is known as
work done
entropy
enthalpy
none of these
In a steady flow process,the ratio of
heat transfer is constant
work transfer is constant
mass flow at inlet and outlet is same
all of these
which of the following statement is incorrect?
the liquid fuels consist of hydrocarbons
The liquid fuel have higher calorific value than solid fuels
the solid fuels have higher calorific value than liquid fuels
a good fuel should have low ignition poi
