1
GATE CE 2008
MCQ (Single Correct Answer)
+2
-0.6
The maximum shear stress in a solid shaft of circular cross-section having diameter subjected to a torque $$T$$ is $$\tau $$ . If the torque is increased by four times and the diameter of the shaft is increased by two times, the maximum shear stress in the shaft will be
A
$$2\pi $$
B
$$\tau $$
C
$$\tau /2$$
D
$$\tau /4$$
2
GATE CE 2007
MCQ (Single Correct Answer)
+2
-0.6
The maximum and minimum shear stresses in a hollow circular shaft of outer diameter $$20$$ $$mm$$ and thickness $$2$$ $$mm,$$ subjected to a torque of $$92.7$$ $$N.m$$ will be
A
$$59$$ $$MPa$$ and $$47.2$$ $$MPa$$
B
$$100$$ $$MPa$$ and $$80$$ $$MPa$$
C
$$118$$ $$MPa$$ and $$160$$ $$MPa$$
D
$$200$$ $$MPa$$ and $$160$$ $$MPa$$
3
GATE CE 2005
MCQ (Single Correct Answer)
+2
-0.6
A circular shaft shown in the figure is subject to torsion $$T$$ at two points $$A$$ and $$B.$$ The torsional rigidity of portions $$CA$$ and $$BD$$ is $$G{J_1}$$ and that portion $$AB$$ is $$G{J_2}$$. The rotations of shaft at points $$A$$ and $$B$$ are $${\theta _1}$$ and $${\theta _2}$$. The rotation $${\theta _1}$$ is GATE CE 2005 Strength of Materials Or Solid Mechanics - Torsion Question 11 English
A
$${{TL} \over {G{J_1} + G{J_2}}}$$
B
$${{TL} \over {G{J_1}}}$$
C
$${{TL} \over {G{J_2}}}$$
D
$${{TL} \over {G{J_1} - G{J_2}}}$$
4
GATE CE 2004
MCQ (Single Correct Answer)
+2
-0.6
A circular solid shaft of span $$L=5m$$ is fixed at one end and free at the other end. A twisting moment $$T=100$$ $$kN$$-$$m$$ is applied at the free end. The torsional rigidity $$GJ$$ per unit angular twist is $$50000$$ $$kN$$-$${m^2}/rad.$$ Following statements are made for this shaft:

$$1.$$ The maximum rotation is $$0.01$$ radius
$$2.$$ The torsional strain energy is $$1$$ $$kN$$-$$m.$$

With reference to the above statements, which of the following applies?

A
Both statements are true
B
Statement $$1$$ is true but $$2$$ is false
C
Statement $$2$$ is true but $$1$$ is false
D
Both the statements are false
GATE CE Subjects
EXAM MAP