A. towards the wall at its upper end
B. away from the wall at its upper end
C. upwards at its upper end
D. downwards at its upper end
E. none of the above
A. coefficient of friction
B. angle of friction
C. angle of repose
D. sliding friction
E. friction resistance
A. 2n-3
B. n-l
C. ‘2n-l
D. n – 2
E. 3n-2.
where n = number of joints in a frame
A. two members with unknown forces of the frame
B. three members with unknown forces of the frame
C. four members with unknown forces of the frame
D. three members with known forces of the frame
E. four members with two known forces
A. concurrence of the medians
B. intersection of its altitudes
C. intersection of bisector of angles
D. intersection of diagonals
E. all of the above
A. compression or tension
B. buckling or shear
C. shear or tension
D. all of the above
E. bending
A. angle between normal reaction and the resultant of normal reaction and the limiting friction
B. ratio of limiting friction and normal reaction
C. the ratio of minimum friction force to the friction force acting when the body is just about to move
D. the ratio of minimum friction force to friction force acting when the body is in motion
E. ratio of static and dynamic friction
A. maximum
B. minimum
C. zero
D. infinity
E. same as the force applied
A. area of contact
B. shape of surfaces
C. strength of surfaces
D. nature of surface
E. all of the above
A. 20 kg, – ve sense
B. 20 kg, + ve sense
C. 10 kg, + ve sense
D. 10 kg, – ve sense
E. 45 kg, + ve sense