The bending moment in an arch is proportional to___________________?

Related Mcqs:

1. A flywheel of moment of inertia 20 kg-m” is acted upon by a tangential force of 5 N at 2 m from its axis, for 3 seconds. The increase in angular velocity in radian persecond is__________________?

   A. 1/2
   B. 3/2
   C. 2
   D. 3

2. A disc of mass 4 kg, radius 0.5m and moment of inertia 3 kg-m2 rolls on a horizontal surface so that its center moves with speed 5 m/see. Kinetic energy of the disc is ___________________?

   A. 50 J
   B. 150 J
   C. 200 J
   D. 400 J

3. A symmetrical body is rotating about its axis of symmetry, its moment of inertia about the axis of rotation being 2 kg -m2 and its rate of rotation 2 revolutions/see. The angular momentum of the body in kg-m2/sec is_____________________?

   A. 4
   B. 6 7i
   C. 8TC
   D. 8

4. The angle of projection at which the horizontal range and maximum height of a projectile are equal to___________________?

   A. 45°
   B. tan-1 (2)
   C. tan-‘ (4)
   D. tan”1 (1/4)

5. It is observed that in a certain sinusoidal oscillation, the amplitude is linearly dependent on the frequency f. If the maximum velocity during the oscillation is V, then V must be proportional to_________________?

   A. f
   B. 1/f
   C. 1/f2
   D. f2

6. The potential energy of a particle falling through a straight shaft drilled through the earth (assumed homogenous and spherical) is proportional to____________________?

   A. log r
   B. r
   C. r2
   D. 1/r

   where r is the distance of’the particle from centre of the earth

7. Minimum potential energy of a system will be in the position of________________?

   A. stable equilibrium
   B. unstable equilibrium
   C. neutral equilibrium
   D. all of the above

8. A rope is wrapped twice around a rough pole with a coefficient of friction ‘A . It is subjected to a force Fj at one end and a gradually increasing force F2 is applied at the other end till the rope just starts slip-ping. At this instant the ratio of F2 to Fi is_____________________?

   A. 1
   B. e2*
   C. e4*
   D. e*72

9. In a lifting machine with efficiency 60%, an effort of 200 N is required to raise a load of 6 kN. The velocity ratio of the machine is_____________________?

   A. 30
   B. 50
   C. 60
   D. 80

10. Joule is the unit of__________________?

    A. power
    B. impulse
    C. work
    D. momentum