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GATE CE: Solid Mechanics Champion Quiz 3
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Question 1
The total area under the stress-strain curve of a mild steel specimen tested up to failure under tension is a measure of
Question 2
In a bi-axial stress problem, the stresses in x and y directions are 
and 
The maximum principal stress in MPa is
and The maximum principal stress in MPa is Question 3
The maximum and minimum shear stresses in a hollow circular shaft of outer diameter 20mm and thickness 2mm. Subjected to a torque of 92.7 N.m will be
Question 4
What is the maximum torque transmitted by a hollow shaft of external radius R and internal radius r?
( where fs is shear stress of material)
( where fs is shear stress of material)
Question 5
A 40 mm diameter shaft is subjected to a twisting moment Mt. If shear stress developed in shaft is 5 N/mm2, what is the value of the twisting moment?
Question 6
A torque T is applied at the free end of a stepped rod of circular cross-sections as shown in the figure. The shear modulus of the material of the rod is G. The expression for d to produce an angular twist 
at the free end is
at the free end is Question 7
The diameter of a solid shaft is D. the inside and outside diameters of a hollow shaft of same material and length are 
and
respectively. What is the ration of the weight of the hollow shaft to the solid shaft?
and respectively. What is the ration of the weight of the hollow shaft to the solid shaft? Question 8
In a plane stress condition, the components of stress at a point are σx= 20 MPa, σy = 80 MPa and τxy = 40 MPa the maximum shear stress (in MPa) at the point is
Question 9
If E = elasticity modulus, I = moment of inertia about the neutral axis and M = bending moment in pure bending under the symmetric loading of a beam, the radius of curvature of the beam:
1). Increases with E
2). Increases with M
3). Decreases with I
4). Decreases with M
Which of these are correct ___________?
1). Increases with E
2). Increases with M
3). Decreases with I
4). Decreases with M
Which of these are correct ___________?
Question 10
A solid circular shaft of diameter 100 mm is subjected to an axial stress of 50 MPa. It is further subjected to a torque of 10 kNm. The maximum principal stress experienced on the shaft is closest to
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Jul 8ESE & GATE CE
