Q. Which of the following is the higher pair? A. Belt and pulley B. Turning pair C. Screw pair D. Sliding pair Answer & Explanation Belt and pulley is the higher pair. Thus correct option is: A. Similar Questions
Q. Static balancing is satisfactory for low speed rotors but with increasing speeds, dynamic balancing becomes necessary. This is because, A. The unbalanced couples are cause only at higher speeds B. The unbalanced forces are dangerous at higher speeds C. The effects of unbalances are proportional to the square of the speed D. The effects of unbalances are directly proportional to the speed Answer & Explanation
Q. Introduction of the flywheel in a rotating system smoothens A. The bending moment on the rotating shaft B. The twisting moment on the shaft C. The bending stress on the shaft D. The axial force along the shaft Answer & Explanation
Q. A flywheel of moment of inertia 9.8 kg·m2 fluctuates by 30 rpm for a fluctuation in energy of 1936 Joules. The mean speed of the flywheel is (rpm) A. 600 B. 900 C. 968 D. 2940 Answer & Explanation
Q. The radius of gyration of a solid disc type flywheel of diameter D is A. d B. d/√2 C. d/2 D. d/(2√2) Answer & Explanation