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)
+1
-0.3
Maximum shear stress developed on the surface of a solid circular shaft under pure torsion is 240 MPa. If the shaft diameter is doubled then the maximum shear stress developed corresponding to the same torque will be
A
120 MPa
B
60 MPa
C
30 MPa
D
15 MPa
3
GATE ME 2003
MCQ (Single Correct Answer)
+1
-0.3
The beams, one having square cross section and another circular cross-section,are subjected to the same amount of bending moment. If the cross sectional area as well as the material of both the beams are the same then
A
Maximum bending stress developed in both the beams is the same
B
The circular beam experiences more bending stress that the square one
C
The square beam experiences more bending stress than the circular one
D
As the material is same both the beams will experience same deformation
4
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
$${{\pi {D^4}} \over 64}$$
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