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The start or completion of task is called
a duration
NONE OF THESE
an activity
an event
The motion of a shaft in a circular hole is an example of
completely constrained motion
successfully constrained motion
NONE OF THESE
incompletely constrained motion
Carburising flame is used to weld
steel, cast iron, copper, aluminium etc
All of These
hard surfacing materials such as stellite
brass and bronze
Strain energy is the
proof resilience per unit volume of a material
maximum strain energy which can be stored in a body
energy stored in a body when strained upto the breaking of a specimen
energy stored in a body when strained within elastic limits
The motion of a wheel of a car is
combined translation and rotational
purely translation
NONE OF THESE
purely rotational
The process of heat transfer from one particle of the fluid to another by the actual movement of the fluid particles due to difference of density caused by temperature of the particle is known as
free convection
Conduction
forced convection
Radiation
The effect of setting a boring tool above centre height leads to
increase in the effective rake angle and a decrease in the effective clearance angle
decrease in the effective rake angle and an increase in the effective clearance angle
decrease in both effective rake angle and effective clearance angle
increase in both effective rake angle and effective clearance angle
A moderator, apart from its high neutron slowing power, and low non-productive neutron, should be
good thermal conductor
stable under nuclear radiation
corrossion resistant
All of These
A flow in which the quantity of liquid flowing per second is not constant, is called
turbulent flow
unsteady flow
steady flow
Streamline Flow
The draught produced by a steam jet issuing from a nozzle placed in the ashpit under the fire grate of the furnace is called
induced steam jet draught
NONE OF THESE
chimney draught
forced steam jet draught
The buckling load for a given column depends upon
length and least radius of gyration of the column
All of the above
area of cross-section of the column
modulus of elasticity for the material of the column
The largest diameter of an external or internal screw thread is known as
NONE OF THESE
Major diameter
minor diameter
pitch diameter
The velocity ratio for the first system of pulleys is(where n is the number ofpulleys.
)
n
2n
2n - 1
N2
The acceleration of a particle at any instant has two components
i.e. radial component and tangentialcomponent.
These two components will be
parallel to each other
inclined at 45°
opposite to each other
perpendicular to each other
For harder alloy steel, the point angle of the drill is kept
less than 118°
more than 118°
equal to 118°
any one of these
For 450 m head of water, __________ shallbeused
Francis turbine
Pelton wheel
NONE OF THESE
Kaplan turbine
Fouling factor is used
in heat exchanger design as a safety factor
None of the above
when a liquid exchanges heat with a gas
in case of Newtonian fluids
Moment of inertia of a triangular section of base
(b) and height (h) about an axis passing through its
C.G. and parallel to the base, is
bh3/4
bh3/36
bh3/12
bh3/8
The length of a second's pendulum is
101cm
94.9cm
99.4cm
100cm
Tool life is measured by the
time the tool is in contact with the job
number of pieces machined between tool sharpenings
All of the above
volume of material removed between tool sharpenings
1
2
86
171
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