The unit of force in S.I. units is________________?
The unit of force in S.I. units is________________?
A. kilogram
B. newton
C. watt
D. dyne
E. joule
Engineering Mechanics
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A force acting on a body may_________________?
A force acting on a body may_________________?A. introduce internal stresses
B. balance the other forces acting on it
C. retard its motion
D. change its motion
E. all of the above -
Effect of a force on a body depends upon ________________?
Effect of a force on a body depends upon ________________?A. magnitude
B. direction
C. position or line of action
D. all of the above
E. none of the above -
A force is completely defined when we specify_______________?
A force is completely defined when we specify_______________?A. magnitude
B. direction
C. point of application
D. all of the above
E. none of the above -
If a number of forces act simultaneously on a particle, it is possible _____________________?
If a number of forces act simultaneously on a particle, it is possible _____________________?A. not a replace them by a single force
B. to replace them by a single force
C. to replace them by a single force through C.G.
D. to replace them by a couple
E. to replace them by a couple and a force -
Which is the correct statement about law of polygon of forces ?
Which is the correct statement about law of polygon of forces ?A. if any number of forces acting at a point can be represented by the sides
of a polygon taken in order, then the forces are in equilibrium
B. if any number of forces acting at a point can be represented in direction and magnitude by the sides of a polygon, then the forces are in equilibrium
C. if a polygon representing forces acting at a point is closed then forces are in equilibrium
D. if any number of forces acting at a point can be represented in direction and magnitude by the sides of a polygon taken in order, then the forces are in equilibrium
E. none of the above. -
Forces are called concurrent when their lines of action meet in________________?
Forces are called concurrent when their lines of action meet in________________?A. one point
B. two points
C. plane
D. perpendicular planes
E. different planes -
The unit of work or energy in S.I. units is_______________?
The unit of work or energy in S.I. units is_______________?A. newton
B. pascal
C. kilogram meter
D. watt
E. joule -
Which of the following is not the unit of pressure ?
Which of the following is not the unit of pressure ?A. kg/cm
B. ata
C. atmosphere
D. mm of wcl
E. newton -
A pair of smith’s tongs is an example of the lever of__________________?
A pair of smith’s tongs is an example of the lever of__________________?A. zeioth order
B. first order
C. second order
D. third order
E. fourth order