1
GATE ME 2003
MCQ (Single Correct Answer)
+2
-0.6
A simply supported laterally loaded beam was found to deflect more than a specified value. Which of the following measures will reduce the deflection?
A
Increase the area moment of inertia
B
Increase the span of the beam
C
Select a different material having lesser modulus of elasticity
D
Magnitude of the load to be increased
2
GATE ME 2003
MCQ (Single Correct Answer)
+2
-0.6
The state of stress at a point P in a two dimensional loading is such that the Mohr's circle is a point located at 175 MPa on the positive normal stress axis.

The distance of maximum and minimum principal stresses at the point ''P'' from the Mohr's circle are

A
0, 90o
B
90o, 0
C
45o, 135o
D
all directions
3
GATE ME 2003
MCQ (Single Correct Answer)
+1
-0.3
The second moment of a circular area about the diameter is given by (D is the diameter)
A
$${{\pi {D^4}} \over 4}$$
B
$${{\pi {D^4}} \over 16}$$
C
$${{\pi {D^4}} \over 32}$$
D
$${{\pi {D^4}} \over 64}$$
4
GATE ME 2003
MCQ (Single Correct Answer)
+2
-0.6
A shaft subjected to torsion experiences a pure shear stress $$\tau $$ on the surface. The maximum principal stress on the surface which is at $$45$$0 to the axis will have a value
A
$$\tau \,\cos \,\,{45^ \circ }$$
B
$$2\tau \,\cos \,\,{45^ \circ }$$
C
$$\tau \,{\cos ^2}\,\,{45^ \circ }$$
D
$$2\tau \,si{n^2}\,\,{45^ \circ }\,\,\cos \,{45^ \circ }$$