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.Management Sciences
Category: Applied Mechanics and Graphic Statics
Free body diagram is an____________________?
0
A. isolated joint with only body forces acting on it
B. isolated joint with internal forces acting on it
C. isolated joint with all the forces, internal as well as external, acting on it
D. none of the above
A block in the shape of a parallelopiped of sides lm x 2m x 3m lies on the surface. Which of the faces gives maximum stable block ?
A. 1 m x 2 m
B. 2 m x 3 m
C. 1 m x 3m
D. equally stable on all faces
A quantity whose dimensions are M2L2 T3 could be the product of_________________?
A. force and pressure
B. mass and power
C. energy and velocity
D. force and velocity
In a lifting machine a weight of 5 kN is lifted through 200 mm by an effort of 0.1 kN moving through 15 m. The mechanical advantage and velocity ratio of the machine are respectively_____________________?
A. 50 and 75
B. 75 and 50
C. 75 and 75
D. 50 and 50
If y is force and x is velocity, then dimensions of —=r are dx2__________________?
A. M’^T’
B. M’L-‘T0
C. M’L-‘T1
D. M2L’T3
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
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