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.Management Sciences
Category: Engineering Mechanics
If a rigid body is in equilibrium under the action of three forces, then _____________________?
A. these forces are equal
B. the lines of action of these forces meet in a point
C. the lines of action of these forces are parallel
D. B. and C. above
E. none of the above
A cable with a uniformly distributed load per horizontal meter run will take the following shape________________?
A. straight line
B. parabola
C. hyperbola
D. elliptical
E. part of a circle
Which of the following is not a vector quantity __________________?
A. weight
B. velocity
C. acceleration
D. force
E. moment
Center of gravity of a thin hollow cone lies on the axis at a height of ___________________?
A. one-fourth of the total height above base
B. one-third of the total height above base
C. one-half of the total height above base
D. three-eighth of the total height above the base
E. none of the above
Two coplanar couples having equal and opposite moments_________________?
A. balance each other
B. produce a couple and an unbalanced force
C. are equivalent
D. produce a moment of couple
E. can not balance each other
The units of moment of inertia of an area are__________________?
A. kg m2
B. m4
C. kg/m2
D. m3
E. kg/m4
Which of the following is not the unit of energy_________________?
A. kg m
B. kcal
C. wattr
D. watt hours
E. kg m x (m/sec)2
The coefficient of friction depends on________________?
A. area of contact
B. shape of surfaces
C. strength of surfaces
D. nature of surface
E. all of the above
If three forces acting in different planes can be represented by a triangle, these will be in________________?
A. non-equilibrium
B. partial equilibrium
C. full equilibrium
D. unpredictable
E. none of the above
The forces, which meet at one point, but their lines of action do not lie in a plane, are called_________________?
A. coplanar non-concurrent forces
B. non-coplanar concurrent forces
C. non-coplanar non-concurrent forces
D. intersecting forces
E. none of the above
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