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.Management Sciences
Category: Applied Mechanics and Graphic Statics
A system of copianar forces is in equilibrium when___________________?
A. force polygon closes
B. funicular polygon closes
C. both force polygon” and funicular polygon close
D. all the forces are concurrent
The pole distance is measured in___________________?
A. distance scale
B. force scale
C. mass scale
D. time scale
A body is dropped from a height of 100 m and at the same time another body is projected vertically upward with a velocity of 10 m/sec. The two particles will____________________?
A. never meet
B. meet after 1 sec
C. meet after 5 sec
D. meet after 10 sec
The time period of a simple pendulum depends on__________________?
1) mass of suspended particle
2) length of the pendulum
3) acceleration due to gravity
The correct answer is
A. only (1)
B. both (2) and (3)
C. both (1) and (3)
D. all are correct
The bending moment in an arch is proportional to___________________?
A. vertical ordinate of funicular polygon
B. vertical ordinate of the arch
C. intercept between the arch axis and the funicular polygon
D. none of these
The following is in unstable equilibrium__________________?
A. a uniform solid cone resting on a generator on a smooth horizontal plane
B. a uniform solid cone resting on its base on a horizontal plane
C. a solid cube resting on one edge
D. a satellite encircling the earth
An ordinate in a funicular polygon represents__________________?
A. shear force
B. resultant force
C. bending moment
D. equilibrium
Cartesian form of the equation of catenary is_________________?
A. y = c cosh x/c
B. y = c sinh x/c
C. y = c tan x/c
D. y = c sin”1 x/c
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