Maximum efficiency of a screw jack for the angle of friction φ, is

More Questions from Applied Mechanics

• Pick up the correct statement from the following :
• The C.G. of a right circular cone lies on its axis of symmetry at a height of
• Joule is the unit of
• The c.g. of the shaded area of the below figure whose curve OM is a parabola from y-axis, is
• When a body in equilibrium undergoes an infinitely small displacement, work imagined to be done, is known as
• The equation of motion of a particle starting from rest along a straight line is x = t3 - 3t2 + 5. The ratio of the accelerations after 5 sec and 3 sec will be
• If the gravitational accelerational at any place is doubled, the weight of a body, will
• The locus of the instantaneous centre of a moving rigid body, is
• A load of 500 kg was lifted through a distance of 13 cm. by an effort of 25 kg which moved through a distance of 650 cm. The efficiency of the lifting machine is
• Two forces act an angle of 120°. If the greater force is 50 kg and their resultant is perpendicular to the smaller force, the smaller force is

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