https://www.geekmcq.com/

Engineering :: Engineering Mechanics


61.  The centre of gravity of a right circular solid cone is at a distance of
A. h / 2 B. h / 3
C. h / 4 D. h / 6

62.  The centre of gravity of a right angled triangle lies at its geometrical centre.
A. Correct B. Incorrect

63.  The centre of gravity of a quadrant of a circle lies along its central radius (r) at a distance of
A. 0.5 r B. 0.6 r
C. 0.7 r D. 0.8 r

64.  The centre of gravity a T-section 100 mm x 150 mm x 50 mm from its bottom is
A. 50 mm B. 75 mm
C. 87.5 mm D. 125 mm

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

66.  The unit of moment of inertia of an area is
A. kg-m2 B. kg-m-s2
C. kg/m2 D. m4

67.  The unit of mass moment of intertia in S.I. units is kg - m2
A. True B. False

68.  The radius of gyration is the distance where the whole mass (or area) of a body is assumed to be concentrated.
A. Correct B. Incorrect

69.  Mass moment of inertia of a thin rod about its one end is
A. same as B. twice
C. thrice D. four times

70.  The moment of inertia of a square of side (a) about an axis through its centre of gravity is
A. a4/4 B. a4/8
C. a4/12 D. a4/36




© 2012-2024 by GeekMCQ™ Technologies. All Rights Reserved | Copyright | Terms of Use & Privacy Policy

Contact us: info@geekmcq.com