Force method of analysis of a structure is particularly preferred when
1. The degrees of freedom of the structure become large
2. The structure has less number of static, and more number of kinematic, indeterminacies
3. The structure has more numbers of static, and less numbers of kinematic,
indeterminacies
Consider the following statements for a beam based on theory of bending
1. Strain developed in any fibre is directly proportional to the distance of fibre from neutral surface
2. For flexural loading and linearly elastic action the neutral axis passes through the centroid of cross section
3. The assumption of the plane cross sections remaining plane will not hold good during inelastic action
4. Instances in which the neutral axis does not pass through the centroid of a cross section include a homogenous
symmetrical beam (with respect to neutral axis) and subjected to inelastic action.
Which of the statements given above are correct?
Match List I with List II and select the correct answer using the codes given below the lists:
|
A |
Moment of inertia |
1 |
Tensile stress |
|
B |
Elongation |
2 |
Modulus of rupture |
|
C |
Neutral axis |
3 |
Zero shear stress |
|
D |
Top fibre stress |
4 |
Zero longitudinal stress |
Codes:
A B C D
Consider the following statements -
If there is a state of pure shear t at a point then
1. The Mohr's circle is tangential to the y-axis.
2. The centre of the Mohr's circle coincides with the origin.
3. Unlike principal stresses are each numerically equal to t.
4. Principal stresses are alike
Which of the above statements is/are correct
Consider the following statements:
Moment Area Method proves advantageous in analysing
1. cantilever beams.
2. symmetrically loaded simply supported beams.
3. fixed beams.
4. continuous beams.
Which of the above statements are correct?
I1= the moment of inertia of the column cross- section
I2= the moment of inertia of the beam cross- sectionConsider the following statements regarding a beam of uniform cross-section simply supported at its
ends and carrying a
concentrated load at one of its third points.
1. Its deflection under the load will be maximum.
2. The bending moment under the load will be maximum.
3. The deflection at the mid-point of the span will be maximum.
4. The slope at the nearer support will be maximum.
Of these statements.
Consider the following statements with reference to a continuous beam supported at A, C and E for
which shear force
diagram is shown in the above figure.
There is:
1. A concentrated load acting at point B.
2. A concentrated load acting at point D.
3. A uniformly distributed load acting on the portion CE.
Which of these statements are correct?Which of the following statements are correct?
1. All load carrying members transmit load through basic modes of tension, compression, torsion and shear
only.
2. Beams carry transverse loads.
3. Combined loading is a complicated loading.
4. Nature of internal forces decides the aspect of combined loading.
Assertion (A): Bending moment in a beam is maximum at a section where shear force is zero
Reason (R): Shear force at a section is given by the rate of change of bending moment.What is the correct sequence of the following metals in the decreasing order of their Poisson's ratio?
1. Aluminium
2. Cast iron
3. Steel
Select the correct answer using the code given below:
Assertion (A): A mild steel tension specimen subjected to an axial load fails along a surface
at 45° to its axis.
Reason (R): Mild steel is weaker in shear than in tension and the place of maximum shear is at 45° to its axis.Assertion (A): In tensile test on a specimen, true stress in the specimen is more than the
nominal stress
Reason (R): Grip of universal testing machine introduces stress concentrations.
Consider the following statements about flitched beams:
1. A flitched beam has a composite section made of two or more materials joined together
in such a manner that they behave as a unit piece and each material bends to the same
radius of curvature.
2. The total moment of resistance of a flitched beam is equal to the sum of the moments of
resistances of individual sections.
3. Flitched beams are used when a beam of one material, if used alone would require
quite a large cross- sectional area.
Of these statementsIf the depth of a rectangular beam is reduced to its half, what will be the change in the strain energy of the beam?
(Assume the width of the beam as constant)
Which strain is known as dilatation strain?
Consider the following statements:
1.On planes having maximum and minimum principal stresses, there will be no tangential stress.
2.Shear stresses on mutually perpendi-cular planes are numerically equal.
3.Maximum shear stress is equal to half the sum of the maximum and minimum principal stresses.
Which of these statements is/are correct?
Match List-I with List-II and select the correct answer using the codes given below the list.
|
List-I |
List-II |
||||
|
A |
Impulse |
1 |
Shear centre |
|
|
|
B |
Torsion |
2 |
Plane motion |
|
|
|
C |
Plane of loading |
3 |
Modulus of rigidity |
|
|
|
D |
Instantaneous centre of rotation |
4 |
Time effect of a force
|
|
|
Codes:
A B C D
.The ratio of torques on shafts i.e., 
.
would beAssertion (A): To a cantilever beam of circular cross-section, if a moment is applied
with its axis perpendicular to the axis of beam, no shear stress will be induced in the
beam.
Reason (R): To the above beam, if moment is applied with its axis along the axis of
the beam, no bending stress will be induced in the beam.
Consider the following statements:
Williot-Mohr diagram is used to determine the deflection in
1. an arch
2. a truss
3. a rigid frame
Which of these statements is/are correct?Consider the following statement:
A beam of channel cross-section with vertical web loaded with a concentrated vertical load
at midspan in a plane perpendicular to the plane of symmetry passing through the centroid
is subjected to
1. Bending moment
2. Twisting moment
3. Shear force
4. Axial thrust
Of these statements :
For a given figure determine degree of freedom. When members are inextensible.
