A. friction
B. limiting friction
C. repose
D. kinematic friction
✅ The correct answer is option C.
Strength of Materials MCQs
The resolved part of the resultant of two forces inclined at an angle 9 in a given direction is equal to__________________?
A. the algebraic sum of the resolved parts of the forces in the given direction
B. the sum of the resolved parts of the forces in the given direction
C. the difference of the forces multiplied by the cosine of 9
D. the sum of the forces multiplied by the sine of 9
✅ The correct answer is option A.
A heavy string attached at two ends at same horizontal level and when central dip is very small approaches the following curve___________________?
A. catenary
B. parabola
C. hyperbola
D. elliptical
✅ The correct answer is option B.
The units of moment of inertia of mass are_____________________?
A. kg m2
B. m4
C. kg/m2
D. kg/m
✅ The correct answer is option A.
Which of the following is the locus of a point that moves in such a manner that its distance from a fixed point is equal to its distance from a fixed line multiplied by a constant greater than one________________?
A. ellipse
B. hyperbola
C. parabola
D. circle
✅ The correct answer is option B.
The resultant of the following three couples 20 kg force, 0.5 m arm, $ ve sense 30 kg force, 1 m arm, – ve sense 40 kg force, 0.25 m arm, + ve sense having arm of 0.5 m will be_________________?
A. 20 kg, – ve sense
B. 20 kg, + ve sense
C. 10 kg, + ve sense
D. 10 kg, – ve sense
✅ The correct answer is option A.
The forces, which meet at one point, but their lines of action do not lie in a plane, are called______________?
A. coplanar non-concurrent forces
B. non-coplanar concurrent forces
C. non-coplanar non-concurrent forces
D. intersecting forces
✅ The correct answer is option B.
Forces are called concurrent when their lines of action meet in_______________?
A. one point
B. two points
C. plane
D. perpendicular planes
✅ The correct answer is option A.
The units of moment of inertia of an area are_______________?
A. kg m2
B. m4
C. kg/m2
D. m3
✅ The correct answer is option B.
In ideal machines________________?
A. mechanical advantage is greater than velocity ratio
B. mechanical advantage is equal to velocity ratio
C. mechanical advantage is less than velocity ratio
D. mechanical advantage is unity
✅ The correct answer is option B.