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WorksheetsSTRENGTH OF MATERIALS II
Total questions: 45
Worksheet time: 45mins
1. Most of the real world structures are statically determinate.
State whether the above statement is true or false.
True
False
3. in most cases, for a given loading, maximum stress and deflection of an indeterminate structure are __________ than that of a determinate one.
Larger
Smaller
Larger for small load
Smaller for larger load
4. Which structure will perform better during earthquake?
Statically determinate
Statically indeterminate
Both
Depends upon magnitude of earthquake
There are two beams of equal length,L and a distributed load, W is acting on centre of both beams. One of them is simply supported at both ends while the other one is fixed at both ends. Deflection of centre of simply supported beam will be __________ times that of defection of centre of fixed beam.
1
3
5
7
Fabrication errors don’t cause additional stresses in statically indeterminate structures.
State whether the above statement is true or false.
True
False
The beam with more than two support is called
Simply Supported beam
Continuous beam
Cantilever Beam
Fixed beam
When the both ends of beam is fixed , the beam is
Simply supported beam
Cantilever beam
Fixed beam
Continuous beam
The number of support reaction for fixed support
1
2
3
4
The moment is zero at which type of support
Roller support
Hinged support
Fixed support
Both Roller & hinged support
The slope is zero at which support
Roller support
Pinned support
Fixed support
None of the above
Which of the following are statically determinate beams?
Only simply supported beams
Cantilever, overhanging and simply supported
Fixed beams
Continuous beams
For any part of the beam, between two concentrated load Shear force diagram is a
Horizontal straight line
Vertical straight line
Line inclined to x-axis
Parabola
one end fixed and other end roller/hinged is called as _______beam
cantilever
propped cantilever
overhanging
none of the above
Degree of indeterminacy of a propped cantilever beam is....
1
3
2
0
What is the formula for a fixed beam subjected to UDL throughtout.....
+/- wl2/8
+/- wl/8
+/- wl2/12
+/- wl2/24
What is the formula for a fixed beam subjected to point Load
+/- wl2/8
+/- wl/8
+/- wl2/12
+/- wl2/24
What is the formula for a fixed beam subjected to point load at A from right support
Wab^2/L
Wa^2b^2/L
Wa^2b/L
Wab/L
A and B are fixed supports.
If support B settles by 1mm downward, what is direction of rotation at point A?
+ve
-ve
Can’t say
Depends upon loading at point
A and B are fixed supports.
If support A settles by 1mm downward, what is direction of rotation at point A?
+ve
-ve
Can’t say
Depends upon loading at point
IF BEAM AB span FIXED THEN MFAB direction is
clock wise
anticlockwise
both
nothing above
Where is the total located in case of Uniformly distributed load?
at mid point
at two third distance from left corner of the load
at end point
none of the above
The maximum negative bending moment in fixed beam carrying udl occurs at
Mid span
1/3 of the span
Supports
Half of the span
A propped cantilever beam carrying total load “W” distributed evenly over its entire length calculate the vertical force required in the prop.
3/4 W
W
5/8 W
3/8 W
Prop reduces ___________ in the beam.
Deflection
Slope
Shear
Torsion
In cantilever beams, the extra support is known as ____________
Hinch
Prop
Cripple
Indeterminate end
____________ is used to produce due to temperature variation in indeterminate structures.
Stresses
Strains
Deflections
Moment
In fixed beams, the maximum deflection at __________ is reduced.
Centre
Supports
At point of loading
Through out
Calculate the maximum bending moment in fixed beam for the following figure.
17 kN-m
12.5 kN-m
15.625 kN-m
18 kN-m
Which of the following is indeterminate structure?
Singly rereinforced beam
Propped cantilever beam
Over hanging beam
Simply supported beam
The upward deflection caused by the prop is _____________
Pl3/2EI
Pl2/3EI
Pl3/3EI
Pl4/3EI
_______ changes induce large stresses in a fixed beam
Lateral
Deflection
Temperature
Slope
A beam 6 metres long is fixed at it ends. It carries a udl of 5 kN/m. Find the maximum bending moment in the beam.
15 kNm
20 kNm
35 kNm
40 kNm
Calculate the maximum deflection of a fixed beam carrying udl of 5 kN/m. The span of beam is 6 m. Take E = 200kN/m2 and I = 5×107 mm4.
1.865 mm
2.235 mm
1.6875 mm
2.5 mm
Calculate the load intensity of fixed beam if the maximum deflection shall not exceed 1/ 400 of the span. Take EI as 1010 kN mm2. Assume point load at centre
40 kN
35 kN
45 kN
60 kN
Bending moment and slope at the end of fixed support of a fixed beam loaded by UDL is _____ and _____ respectively
Minimum, zero
Maximum, Zero
Zero, Maximum
Zero, minimum
In a two span continuous beam loaded by UDL, point of contraflexure exist
At mid support
in both spans near middle support
Near end support
At the end support
A fixed beam is subjected to a couple of moment M0
at the centre. The corresponding fixed moment at each end is equal to
M0
M0/2
M0/4
M0/8
The three moments equation is applicable only when
The beam is prismatic
There is no settlement of supports
There is no discontinuity such as hinges within the span
The spans are equal
While using three moments equation, a fixed end of a continuous beam is replaced by an additional span of
Zero length
Infinite length
Zero moment of inertia
None of the above
What is the formula for fixed end moment of a fixed beam subjected to point load at B from right support
Wab^2/L
Wa^2b^2/L
Wa^2b/L
Wab/L
What is the formula for a Fixed end moment of a fixed beam when the support sinks by 1mm
6EI/(L*L)
4EI/(L*L)
8EI/(L*L)
3EI/(L*L)
What is the formula for a Fixed end moment of a fixed beam when subjected to two equal Loads at equal distance in a beam
4WL/8
7WL/9
2WL/9
6WL/9
What is the formula for a Fixed end moment of a fixed beam At A when subjected to triangular load the maximum intensity acting at A
WL^2/20
WL^2/10
WL^2/30
WL^2/40+
What is the formula for a Fixed end moment of a fixed beam At B when subjected to triangular load the maximum intensity acting at A
WL^2/20
WL^2/10
WL^2/30
WL^2/40+
