WorksheetsAPLLIED MECH
Total questions: 98
Worksheet time: 49mins
Name
Class
Date
1.
The Unit of Moment of Inertia, If area in mm^2 and the length is also in mm ____________
a)
mm^4
b)
mm^2
2.
The turning tendency of a force about a point is called a _____________ of a force.
a)
moment
b)
Torque
3.
The second moment of an area is called___________
a)
Moment of Inertia
b)
moment
4.
The moment of inertia of a circular section ___________
a)
(πd^4)/64
b)
(πd^4)/12
5.
The moment of inertia of a rectangular section __________
a)
bd^3/12
b)
bd^3/64
6.
A beam is carrying ________load
a)
Axial
b)
cross section
7.
A beam which is subjected to more than two supports is called as _________ beams
a)
Continuous
b)
simply
8.
The beam, the ends of which are made to freely rest on supports is known as ___________ beam
a)
Simply supported
b)
Cantilever
9.
The beam, which is fixed at both ends is called as __________ beam
a)
Fixed
b)
Cantilever
10.
The beams, the reactions of which at their supports is determined by the use of equations, is known as Statically ________ beams
a)
determinate
b)
Indeterminate
11.
The beams, the reactions of which at their supports is be determined by the use of equations, is known statically______________ beams
a)
Indeterminate
b)
Determinate
12.
It is a load which generally zero at one point and continuously varying with reference to the spread load on the beam is known as Uniformly ____________ load.
a)
varying
b)
distribution
13.
The resultant force which is in the downward direction and is towards the RHS of the X - section ____________shear force.
a)
Positive
b)
Negative
14.
The resultant moment on the RHS position of the X-section is C.C.W, then it may be considered as _____________ bending moment
a)
Positive
b)
Negative
15.
The ratio between the stress and strain is known as _____
a)
Young's Modulus
b)
Poison's ratio
16.
The ratio of the maximum tensile load of a material can bear without failure, to the original cross-sectional area of the material is known as__________ strength.
a)
Tensile
b)
Compressive
17.
The ratio of the maximum compressive load of a material can withstand without failure, to the original cross-sectional area of the material is known as __________ strength.
a)
Compressive
b)
Tensile
18.
The capacity of a material to resist penetration _________
a)
Hardness
b)
Strength
19.
When a body is subjected to two equal and opposite pushes the stress induced is called as __________ stress.
a)
Compressive
b)
Tensile
20.
The property which allows a metal beam to be bent by hammering is known as __________
a)
malleability
b)
Ductility
21.
Modulus of elasticity is otherwise called as __________ modulus
a)
Young’s
b)
Shear
22.
The unit of Tensile stress is ________________
a)
N/m^2
b)
N/m
23.
The unit of Tensile strain is ________________
a)
No unit
b)
N/m^2
24.
The unit of Modulus of Elasticity is ________________
a)
N/m^2
b)
Nm
25.
1 Pa (Pascal) = ___________ N/m2
a)
1
b)
10
26.
SI-unit of load is ____________
a)
Newton (N)
b)
Ohm
27.
The value of buckling load is ______ for long column
a)
Low
b)
High
28.
The slenderness ratio of a long column is ________
a)
Above 80
b)
Less than 80
29.
A Column is also called a ____________
a)
Stanchion
b)
Strut
30.
A column is a _________ member subjected to an axial compressive load
a)
vertical
b)
inclined
31.
A strut is an __________ subjected to an axial compressive load
a)
inclined member (or) Horizontal
b)
vertical
32.
The critical load of the short columns is relatively _________
a)
High
b)
Low
33.
The load at which the column start buckles is called as ________ load
a)
buckling
b)
bending
34.
The ratio of circumferential stress to longitudinal stress in a thin cylinder __________
a)
2
b)
4
35.
In a thick cylinder pressurized from inside, the hoop stress is maximum at_______________
a)
the inner radius
b)
the outer radius
36.
In the case of thick cylinder subjected to fluid pressure, Longitudinal stress is ___________
a)
Tensile
b)
Compressive
37.
In the case of thick cylinder subjected to fluid pressure, Radial stress is ___________
a)
Compressive
b)
Tensile
38.
The beam, there will be a layer, which is neither shortened nor elongated is known as _________
a)
Neutral layer
b)
Primary layer
39.
The line of intersection of the neutral layer on a cross-section of a beam is known as
a)
neutral axis
b)
Primary axis
40.
All layers below neutral layer are subjected to _______ stress
a)
tensile
b)
Compressive
41.
The shear stress at a point in a shaft subjected to a torque is __________ proportional to the applied torque
a)
Directly
b)
Indirectly
42.
When the shaft is subjected to Torsion, the shear stress is ___________ at the surface
a)
maximum
b)
minimum
43.
Angle of twist of a shaft of diameter ‘d’ is __________ proportional to d^4
a)
Inversely
b)
directly
44.
The stresses introduced by bending moment are known as __________ stresses
a)
bending
b)
Turning
45.
The product of modulus of rigidity(C) and polar moment of inertia (J) is known as __________
a)
Inversely
b)
directly
46.
The load required to produce a unit deflection in a spring is called as ________________
a)
stiffness
b)
Rigidness
47.
When a closely coiled sprig is subjected to an axial load it is said to be under __________
a)
Torsion
b)
Force
48.
Laminated spring or leaf spring are called as __________
a)
Bending spring
b)
Torsion spring
49.
A spring is used to absorb energy due to _____________
a)
Resilience
b)
Resistance
50.
A spring, which is subjected to torsion or twisting moment only is called as ___________
a)
torsion springs
b)
Bending spring
51.
A torsion spring and made up of a wire coiled into a helix is called as _____________
a)
Helical Springs
b)
Laminated springs
52.
Energy stored in the spring is ____________ proportional to the Load.
a)
Directly
b)
Inversely
53.
Energy stored in the spring is ____________ proportional to the Deflection.
a)
Directly
b)
Inversely
54.
If the area of a section is in mm^2 and the distance of the centre of area from a line is in mm, then units of the moment of inertia of the section is expressed in
a)
mm^2
b)
mm^3
c)
mm^4
d)
mm^5
55.
The moment of inertia of a triangular section of base (b) and height (h) about an base is given by the relation
a)
bh^3/12
b)
bh^3/14
c)
bh^3/42
d)
bh^3/48
56.
Moment of inertia of circle is
a)
πd^4/64
b)
πd^4/32
c)
(πD^4- d^4)/64
d)
(πD^4- d^4)/32
57.
A structural member subjected to an axial compressive force is called as
a)
Beam
b)
Column
c)
Frame
d)
Strut
58.
A beam in which one end is fixed and is free at the other end is known as
a)
Cantilever beam
b)
Fixed beams
c)
Continuous beams
d)
Simply supported beams
59.
It is a load act on a point therefore it is known as
a)
Point load
b)
Uniformly distributed load
c)
Uniformly Varying load
d)
Uniform Load
60.
The algebraic sum of the moments about an x-section of all the forces acting on either side of the section is
a)
Shear force
b)
Bending moment
c)
Varying force
d)
Total force
61.
The point of contra flexure is a point where
a)
Shear force changes sign
b)
Bending moment changes sign
c)
Shear force is maximum
d)
Bending moment is maximum
62.
When a cantilever is loaded at its free end, maximum compressive stress shall develop at
a)
Bottom
b)
Top
c)
Neutral
d)
Centre of gravity
63.
This load is spread over certain length of the beam is called as
a)
Uniformly distributed load
b)
Uniformly Varying load
c)
Point Load
d)
Lengh load
64.
If a force acts on a body, it sets up some resistance to the deformation. This resistance is known as
a)
Stress
b)
Strain
c)
Elasticity
d)
Modulus of elasticity
65.
The term deformation per unit length is applied for
a)
Stress
b)
Strain
c)
Modulus of elasticity
d)
Hook's law
66.
The property of a material to recover its original size when the applied force is removed
a)
Elasticity
b)
Elastic Limit
c)
Plasticity
d)
permanent
67.
The limit, which the piece of metal deforms permanently
a)
Plasticity
b)
Elastic Limit
c)
permanent limit
d)
Entry limits
68.
The property which allows a metal rod to be drawn into a wire of smaller cross section
a)
Ductility
b)
Toughness
c)
Hardness
d)
Strength
69.
When a material is loaded within elastic limit stress is proportional to
a)
Strain
b)
Force
c)
Tensile force
d)
Compressive force
70.
The stress-strain relationship is
a)
Linear
b)
Circular
c)
Cross
d)
Parabola
71.
The capacity of a material to resist penetration, abrasion or a cut is known as
a)
hardness
b)
Ductility
c)
Plasticity
d)
Elasticity
72.
When a body is subjected to two equal and opposite pushing forces, the length of the body tends to decrease. These pushing forces are called
a)
Tensile loads
b)
Compressive loads
c)
Linear load
d)
Less load
73.
Due to external loads, the resistance offered by the material is _____________ proportional to the deformation of the material
a)
directly
b)
indirectly
c)
No relationship
d)
corelation
74.
An external force applied on a rigid body is called
a)
load
b)
strain
c)
body
d)
line
75.
Which law states that the stress is directly proportional to strain within the elastic limit
a)
Euler’s
b)
Newton’s
c)
Hook’s
d)
Law of Gearing
76.
The stress which is acting in steel wire of crane is
a)
Tensile stress
b)
Compressive stress
c)
Zero when load is lifting
d)
Negative stress
77.
A structural member subjected to an axial compressive force is called as
a)
Strut
b)
Beam
c)
Bend
d)
Force
78.
Short column fails due to
a)
Crushing load
b)
Buckling load
c)
Crippling load
d)
Critical load
79.
Long column fails due to
a)
Crushing load
b)
Bending stress
c)
Area
d)
Length
80.
Unit of slenderness ratio
a)
mm
b)
m
c)
cm
d)
No unit
81.
The design of thin cylindrical shells is based on
a)
Hoop stress
b)
Longitudinal stress
c)
Volumetric stress
d)
Young modulus
82.
A thin cylinder of diameter and length subjected to an internal pressure the circumferential stress in the shell is
a)
pd/2t
b)
pd/4t
c)
pd/3t
d)
pd/t
83.
From design point of view, spherical pressure vessels are preferred over cylindrical pressure vessels because they
a)
Are cost effective in fabrication
b)
Have uniform higher circumferential stress
c)
Uniform lower circumferential stress
d)
Have a larger volume for the same quantity of material used
84.
Where does the maximum hoop stress in a thick cylinder under external
pressure occur?
a)
At the outer surface
b)
At the inner surface
c)
At the mid-thickness
d)
At the 2/3rd outer radius
85.
The neutral axis of a section is an axis, at which the bending stress is
a)
Minimum
b)
Zero
c)
Maximum
d)
Infinity
86.
The stresses introduced by bending moment are known as
a)
Bending stresses
b)
Linear Stresses
c)
Compressive sresses
d)
Poison's ratio
87.
In the theory of simply bending, the bending stress in the beam section various
a)
Linearly
b)
Parabolically
c)
Elliptically
d)
Involute
88.
The ratio of average shear stress to the maximum shear stress in a beam with a
square cross-section is _________
a)
1
b)
0.6666666666666666
c)
1.5
d)
2
89.
When a solid shaft is subjected to torsion the shear stress induced in the shaft at its centre is
a)
Zero
b)
Minimum
c)
Maximum
d)
Average
90.
A shaft is subjected to torsion when
a)
Torque is applied at its one end
b)
Equal torque is applied at both ends in clockwise direction
c)
Torque is zero
d)
Axial force is applied
91.
Torsional rigidity of a solid circular shaft of diameter‘d’ is proportional to
a)
d
b)
d^2
c)
d^4
d)
d/2
92.
Unit of torque
a)
Nm
b)
N
c)
N/m
d)
N/m2
93.
Spring used in railway wagons, coaches are
a)
Leaf spring
b)
Conical spring
c)
Helical spring
d)
spiral torsion spring
94.
When a closed coiled helical spring subjected to direct axial load, it mainly develops
a)
Shear stress
b)
Direct Stress
c)
Bending stress
d)
Tensile stress
95.
A spring, which is subjected to bending only, and the resilience is also due to it is known as
a)
Bending spring
b)
Torsion spring
c)
Helical spring
d)
spiral torsion spring
96.
Spring stiffness is
a)
Load of spring
b)
Load per unit area
c)
Load per unit deflection
d)
Load per unit cross-sectional area of spring
97.
A spring, a wire coiled into a helix is known as
a)
Leaf spring
b)
Conical spring
c)
Circular spring
d)
Helical spring
98.
Which type of spring is used for a shock absorbtion in bus
a)
Helical spring
b)
Circular spring
c)
Conical spring
d)
Leaf spring
100 %
