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1. In S.H.M., acceleration is proportional to?

2. An automotive engine weighing 240 kg is supported on four springs with linear characteristics. Each of the front two springs have a stiffness of 16MN/m while the stiffness of each rear spring is 32MN/m. The engine speed (in rpm), at which resonance is likely to occur, is?

3. A vehicle suspension system consists of a spring and a damper. The stiffness of the spring is 3.6 kN/m and the damping constant of the damper is 400 Ns/m. If the mass is 50 kg, then the damping factor (d ) and damped natural frequency (fn), respectively, are

4. In S.H.M., the velocity vector w.r.t. displacement vector?

5. A body having moment of inertia of 30 kg m2 is rotating at 210 RPM and mashes with another body at rest having M.I. of 40 kg m2. The resultant speed after meshing will be

a) 90 RPM

b) 100 RPM

c) 80 RPM

d) none of the mentioned

6. Inertia force acts?

7. The frequency of oscillation at moon compared to earth will be?

8. Polar moment of inertia(IP) of a circular disc is to be determined by suspending it by a wire and noting the frequency of oscillations(f)?

9. The frequency of oscillation of a bigger diameter cylinder compared to a small cylinder inside a cylinder concave surface will be and explain.

10. he frequency of oscillation of a cylinder inside a cylinder inside a cylindrical concave surface of bigger radius compared to a small radius will be and give an explanation.

11. If the radius of gyration of a compound pendulum about an axis through c.g. is more, then its frequency of oscillation will be?

12. The Bifilar suspension method is used to determine?

13. The natural frequency of a spring-mass system on earth is n. The natural frequency of this system on the moon (gmoon =gearth/6) is?