NEW
Font size
WorksheetsModule 4 and Module 5
Total questions: 10
Worksheet time: 5mins
Moment of inertia of a circular section about an axis perpendicular to the section is
πd^3/16
πd^3/32
πd^4/32
πd^4/64
Moment of inertia of a triangular section of base (b) and height (h) about an axis passing through its C.G.
bh^3/4
bh^3/8
bh^3/12
bh^3/36
The point, through which the whole weight of the body acts, irrespective of its position, is known as
moment of inertia
centre of gravity
centre of percussion
centre of mass
The centre of gravity of a semi-circle lies at a distance of __________ from its base measured along the vertical radius.
3r/ 8
4r/ 3π
8r/3
3r/4π
The radius of gyration is the distance where the whole mass (or area) of a body is assumed to be concentrated.
True
False
none
none
Which of the following is an equation of linear motion?(where, u and v = Initial and final velocity of the body, a = Acceleration of the body, and s = Displacement of the body in time t seconds.)
v = u + a.t
s = u.t + 1/2 a.t^2
v^2 = u^2+2a.s
All of these
The total time taken by a projectile to reach maximum height and to return back to the ground, is known as time of flight.
True
False
None
None
The skidding away of the vehicle on a level circular path can be avoided if the force of friction between the wheels and the ground is __________ the centrifugal force.
less than
greater than
equal
None
Find centroid base b height h for the figure shown
x=b/3 & y=2h/3
x=2b/3 & y=h/3
x=b/2 , & y=h/2
None
What is the centroid x,y for the semicircle radius r
x=3r,y=8r
x=2r/3π,y=32/4π
x=r & y=r-4r/3π
None
