Engineering :: Engineering Mechanics
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61. |
The centre of gravity of a right circular solid cone is at a distance of |
Answer: Option C
Explanation:
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62. |
The centre of gravity of a right angled triangle lies at its geometrical centre. |
Answer: Option B
Explanation:
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63. |
The centre of gravity of a quadrant of a circle lies along its central radius (r) at a distance of |
Answer: Option B
Explanation:
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64. |
The centre of gravity a T-section 100 mm x 150 mm x 50 mm from its bottom is |
Answer: Option C
Explanation:
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65. |
Moment of inertia is the |
A. |
second moment of force |
B. |
second moment of area |
C. |
second moment of mass |
D. |
all of these |
Answer: Option D
Explanation:
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66. |
The unit of moment of inertia of an area is |
Answer: Option D
Explanation:
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67. |
The unit of mass moment of intertia in S.I. units is kg - m2 |
Answer: Option A
Explanation:
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68. |
The radius of gyration is the distance where the whole mass (or area) of a body is assumed to be concentrated. |
Answer: Option A
Explanation:
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69. |
Mass moment of inertia of a thin rod about its one end is |
A. |
same as |
B. |
twice |
C. |
thrice |
D. |
four times |
Answer: Option D
Explanation:
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70. |
The moment of inertia of a square of side (a) about an axis through its centre of gravity is |
Answer: Option C
Explanation:
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