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.Management Sciences
Category: Applied Mechanics and Graphic Statics
The graphical method of determining the forces in the members of a truss is based on________________?
A. method of joint
B. method of section
C. either method
D. none of the two methods
Which of the following represents the state of neutral equilibrium ?
A. a cube resting on one edge
B. a smooth cylinder lying on a curved surface
C. a smooth cylinder lying on a convex surface
D. none of the above
If a flywheel increases its speed from 10 rpm to 20 rpm in 10 seconds, then its angular acceleration is_____________________?
A. —rad/sec 10
B. —rad/sec 20
C. —rad/sec 30
D. none of the above
The condition of equilibrium for any system of forces in a plane is____________________?
A. that polygon of forces must close
B. that resultant couple must be zero
C. both (A) and (B)
D. none of the above
Minimum potential energy of a system will be in the position of________________?
A. stable equilibrium
B. unstable equilibrium
C. neutral equilibrium
D. all of the above
When a body slides down an inclined surface, the acceleration of the body is given by__________________?
A. g
B. gsinG
C. g cos 6
D. g tan 6
where ‘g’ is acceleration due to gravity and 9 is the angle of inclination of surface with the horizontal
A particle is executing simple harmonic motion in a line 1.0 m long. If the time of one complete vibration is 1 sec, then the maximum velocity of the particle is___________________?
A. 1.00 m/sec
B. 1.57 m/sec
C. 3.14 m/sec
D. 6.28 m/sec
A rigid body is in a stable equilibrium if the application of any force__________________?
A. can raise the CG of the body but can not lower it
B. tends to lower the CG of the body
C. neither raises nor lowers the CG of the body
D. none of above
The dimensions of centrifugal force are__________________?
A. M1 L2 T2
B. M’L’T1
C. M’L’T2
D. M’L-‘T2
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