The torque transmitted by a hollow shaft of outer diameter (d1) and inner diameter (d2) is (where, $$\tau $$ = Maximum allowable shear stress)
A. $$\frac{\pi }{4} \times \tau \times \frac{{{\text{d}}_1^4 - {\text{d}}_2^4}}{{{{\text{d}}_1}}}$$
B. $$\frac{\pi }{{16}} \times \tau \times \frac{{{\text{d}}_1^4 - {\text{d}}_2^4}}{{{{\text{d}}_1}}}$$
C. $$\frac{\pi }{{32}} \times \tau \times \frac{{{\text{d}}_1^4 - {\text{d}}_2^4}}{{{{\text{d}}_1}}}$$
D. $$\frac{\pi }{{64}} \times \tau \times \frac{{{\text{d}}_1^4 - {\text{d}}_2^4}}{{{{\text{d}}_1}}}$$
Answer: Option B
This Question Belongs to Mechanical Engineering >> Strength Of Materials In ME
A. Equal to
B. Less than
C. Greater than
D. None of these
A. $$\frac{{{\text{w}}l}}{6}$$
B. $$\frac{{{\text{w}}l}}{3}$$
C. $${\text{w}}l$$
D. $$\frac{{2{\text{w}}l}}{3}$$
The columns whose slenderness ratio is less than 80, are known as
A. Short columns
B. Long columns
C. Weak columns
D. Medium columns
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