Inspector of Factories • Paper-III
Dummy activities are used in a network to:
A)
Facilitate computation of slacks
B)
Satisfy precedence requirements
C)
Determine project completion time
D)
Avoid use of resources
Based on established principles in Mechanical Engineering, the correct and most appropriate choice is 'Determine project completion time' (Option C).
Inspector of Factories • Paper-III
Chip equivalent is increased by -
A)
an increases in side-cutting edge angle of tool
B)
an increase in nose radius and side cutting edge angle of tool
C)
increasing the plant area of cut
D)
increasing the depth of cut
Based on established principles in the relevant subject area, the correct and most appropriate choice is 'an increase in nose radius and side cutting edge angle of tool' (Option B).
Inspector of Factories • Paper-III
The microstructure composition of pearlite for a Fe-C diagram consists of -
A)
Carbon dissolved in alpha iron having a body cantered cubic structure
B)
Carbon dissolved in gama iron having a face cantered cubic structure
C)
A mixture of body-cantered alpha iron and face-entered gamma iron
D)
Carbon dissolved in body-cantered alpha iron and an Fe3C
Based on established principles in Mechanical Engineering, the correct and most appropriate choice is 'Carbon dissolved in body-cantered alpha iron and an Fe3C' (Option D).
Inspector of Factories • Paper-III
Martensite is a super-saturated solution of carbon in -
A)
Alpha iron
B)
Beta iron
C)
Gamma iron
D)
Delta iron
Based on established principles in Mechanical Engineering, the correct and most appropriate choice is 'Delta iron' (Option D).
Inspector of Factories • Paper-III
The cost of providing service in a queuing system increases with -
A)
Increased mean time in the queue
B)
Increased arrival rate
C)
Decreased mean time in the queue
D)
Decreased arrival rate
Based on established principles in Mechanical Engineering, the correct and most appropriate choice is 'Decreased mean time in the queue' (Option C).
Inspector of Factories • Paper-III
Service time in queuing theory is usually assumed to follow:
A)
Normal distribution
B)
Poisson’s distribution
C)
Erlang distribution
D)
Exponential law
Based on established principles in Mechanical Engineering, the correct and most appropriate choice is 'Normal distribution' (Option A).
Inspector of Factories • Paper-III
Economic Order Quantity is the quantity at which the cost of carrying is:
A)
Minimum
B)
Equal to the cost of ordering
C)
Less than the cost or ordering
D)
Cost of over-stocking
Based on established principles in Mechanical Engineering, the correct and most appropriate choice is 'Equal to the cost of ordering' (Option B).
Inspector of Factories • Paper-III
Ceramic materials are -
A)
inorganic compounds of metallic and non-metallic elements
B)
basically crystalline oxides or metals
C)
good conductors of electricity
D)
none of these
Based on established principles in Mechanical Engineering, the correct and most appropriate choice is 'none of these' (Option D).
Inspector of Factories • Paper-III
The first algorithm for Linear Programming was given by:
A)
Bellman
B)
Dantzig
C)
Kulm
D)
Van Neumann
Based on established principles in Mechanical Engineering, the correct and most appropriate choice is 'Bellman' (Option A).
Inspector of Factories • Paper-III
Using cutting material which can sustain high temperature -
A)
cerment
B)
high carbon steel alloy
C)
composite of two metals
D)
none of these
Based on established principles in the relevant subject area, the correct and most appropriate choice is 'none of these' (Option D).
Inspector of Factories • Paper-II
The pair is known as a higher pair, when the relative motion between the elements is -
A)
turning only
B)
sliding only
C)
rolling only
D)
partly turning and partly sliding
Based on established principles in Mechanical Engineering, the correct and most appropriate choice is 'rolling only' (Option C).
Inspector of Factories • Paper-II
The bulk modulus of a material having E = 200 GPa and G = 80 GPa is -
A)
233.3 GPa
B)
133.3 GPa
C)
250 GPa
D)
160 GPa
Based on established principles in Mechanical Engineering, the correct and most appropriate choice is '133.3 GPa' (Option B).
Inspector of Factories • Paper-II
In a Mohr’s circle, the radius gives the value of -
A)
minimum shear stress
B)
maximum normal stress
C)
minimum normal stress
D)
maximum shear stress
Based on established principles in Mechanical Engineering, the correct and most appropriate choice is 'maximum shear stress' (Option D).
Inspector of Factories • Paper-II
When a particle moves along a straight path, then the particle has -
A)
tangential acceleration only
B)
centripetal acceleration only
C)
both tangential and centripetal acceleration
D)
none of these
Based on established principles in Mechanical Engineering, the correct and most appropriate choice is 'tangential acceleration only' (Option A).
Inspector of Factories • Paper-II
A material with identical properties in all directions is known as -
A)
homogeneous
B)
isotropic
C)
elastic
D)
none of these
Based on established principles in Mechanical Engineering, the correct and most appropriate choice is 'homogeneous' (Option A).
Inspector of Factories • Paper-II
The bolts in a rigid flanged coupling connecting two shafts transmitting power are subjected to
A)
shear force and bending moment
B)
axial force
C)
torsion
D)
torsion and bending moment
Based on established principles in Mechanical Engineering, the correct and most appropriate choice is 'torsion and bending moment' (Option D).
Inspector of Factories • Paper-II
Shear centre is the point in or outside a section through which the shear force applied produces _________ in the beam
A)
only twisting
B)
only bending
C)
twisting and bending
D)
no twisting and bending
Based on established principles in Mechanical Engineering, the correct and most appropriate choice is 'twisting and bending' (Option C).
Inspector of Factories • Paper-II
A disturbing mass m1 attached to the rotating shaft may be balanced by a single mass m2 attached in the same plane of rotation as that of m1, such that (where r1 and r2 are the radii of rotation of m1 and m2 respectively)
A)
m1 r1 = m2 r2
B)
m1 r1^2 = m2 r2^2
C)
m1 m2 = r1 r2
D)
none of these
Based on established principles in Mechanical Engineering, the correct and most appropriate choice is 'm1 r1^2 = m2 r2^2' (Option B).
Inspector of Factories • Paper-II
The motion of a piston in the cylinder of a steam engine is an example of -
A)
completely constrained motion
B)
incompletely constrained motion
C)
successfully constrained motion
D)
none of these
Based on established principles in Mechanical Engineering, the correct and most appropriate choice is 'none of these' (Option D).
Inspector of Factories • Paper-II
A solid shaft of same cross-sectional area and of same material as that of a hollow shaft can resist -
A)
less torque
B)
more torque
C)
equal torque
D)
none of these
Based on established principles in Mechanical Engineering, the correct and most appropriate choice is 'equal torque' (Option C).
Inspector of Factories • Paper-II
The contact ratio for gears is -
A)
zero
B)
less than one
C)
greater than one
D)
infinity
Based on established principles in Mechanical Engineering, the correct and most appropriate choice is 'zero' (Option A).
Inspector of Factories • Paper-II
Isochronism in a governor is desirable when -
A)
the engine operates at low speeds
B)
the engine operates at high speeds
C)
the engine operates at variable speeds
D)
one speed is desired under one load
Based on established principles in Mechanical Engineering, the correct and most appropriate choice is 'the engine operates at high speeds' (Option B).
Inspector of Factories • Paper-II
A pulley and belt in a belt drive from a -
A)
cylindrical pair
B)
turning pair
C)
rolling pair
D)
sliding pair
Based on established principles in Mechanical Engineering, the correct and most appropriate choice is 'rolling pair' (Option C).
Inspector of Factories • Paper-II
The nature of shear stress distribution in a rectangular beam is -
A)
uniform
B)
linear
C)
parabolic
D)
elliptic
Based on established principles in Mechanical Engineering, the correct and most appropriate choice is 'parabolic' (Option C).
Inspector of Factories • Paper-II
The size of a cam depends upon -
A)
base circle
B)
pitch circle
C)
prime circle
D)
pitch curve
Based on established principles in Mechanical Engineering, the correct and most appropriate choice is 'base circle' (Option A).
