Strength Of Materials — Part 2 MCQs with Explanations

Angle between normal reaction and the resultant of normal reaction and the limiting friction is the correct answer to “Angle of friction is the”. This question is standard in competitive examination syllabi for Strength Of Materials.

The friction force acting when the body is just about to move is the correct answer to “Limiting force of friction is the”. This question is standard in competitive examination syllabi for Strength Of Materials.

Ratio of limiting friction and normal reaction is the correct answer to “Coefficient of friction is the”. This question is standard in competitive examination syllabi for Strength Of Materials.

Proportional to velocity of sliding is the correct answer to “Pick up wrong statement about friction force for dry surfaces. Friction force is”. This question is standard in competitive examination syllabi for Strength Of Materials.

Wattr is the correct answer to “Which of the following is not the unit of energy”. This question is standard in competitive examination syllabi for Strength Of Materials.

Wtan(a + <|)) is the correct answer to “A body of weight W on inclined plane of a being pulled up by a horizontal force P will be on the point of motion up the plane when P is equal to”. This question is standard in competitive examination syllabi for Strength Of Materials.

Both (B) and (C) is the correct answer to “If a rigid body is in equilibrium under the action of three forces, then”. This question is standard in competitive examination syllabi for Strength Of Materials.

Nature of surface is the correct answer to “The coefficient of friction depends on”. This question is standard in competitive examination syllabi for Strength Of Materials.

4.0 cm is the correct answer to “A trolley wire weighs 1.2 kg per meter length. The ends of the wire are attached to two poles 20 meters apart. If the horizontal tension is 1500 kg find the dip in the middle of the span”. This question is standard in competitive examination syllabi for Strength Of Materials.

W between P and F is the correct answer to “In the lever of third order, load W, effort P and fulcrum F are oriented as follows”. This question is standard in competitive examination syllabi for Strength Of Materials.

Sum of resolved parts in any two perpendicular directions are both zero is the correct answer to “A number of forces acting at a point will be in equilibrium if”. This question is standard in competitive examination syllabi for Strength Of Materials.

Equal to the moment of the couple is the correct answer to “The algebraic sum of moments of the forces forming couple about any point in their plane is”. This question is standard in competitive examination syllabi for Strength Of Materials.

All of the above is the correct answer to “A force acting on a body may”. This question is standard in competitive examination syllabi for Strength Of Materials.

Repose is the correct answer to “The angle which an inclined plane makes with the horizontal when a body placed on it is about to move down is known as angle of”. This question is standard in competitive examination syllabi for Strength Of Materials.

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 is the correct answer to “Which is the correct statement about law of polygon of forces”. This question is standard in competitive examination syllabi for Strength Of Materials.

$${\text{W}}\tan \left( {\alpha + \varphi } \right)$$ is the correct answer to “The effort required to lift a load W on a screw jack with helix angle $$\alpha $$ and angle of friction $$\varphi $$ is equal to”. This question is standard in competitive examination syllabi for Strength Of Materials.

Mechanical advantage is less than velocity ratio is the correct answer to “In actual machines”. This question is standard in competitive examination syllabi for Strength Of Materials.

The floor and wall both are smooth surfaces is the correct answer to “A heavy ladder resting on floor and against a vertical wall may not be in equilibrium, if”. This question is standard in competitive examination syllabi for Strength Of Materials.

$$\frac{{\text{h}}}{4}$$ is the correct answer to “The C.G. of a right circular solid cone of height h lies at the following distance from the base”. This question is standard in competitive examination syllabi for Strength Of Materials.

If a system of coplanar forces is in equilibrium, then the algebraic sum of their moments about any point in their plane is zero is the correct answer to “According to principle of moments”. This question is standard in competitive examination syllabi for Strength Of Materials.

One plane is the correct answer to “Forces are called coplanar when all of them acting on body lie in”. This question is standard in competitive examination syllabi for Strength Of Materials.

Milestone is the correct answer to “Which of the following is not the unit of distance”. This question is standard in competitive examination syllabi for Strength Of Materials.

Newton is the correct answer to “Which of the following is not the unit of pressure”. This question is standard in competitive examination syllabi for Strength Of Materials.

One point is the correct answer to “Forces are called concurrent when their lines of action meet in”. This question is standard in competitive examination syllabi for Strength Of Materials.

0.5 cm is the correct answer to “From a circular plate of diameter 6 cm is cut out a circle whose diameter is a radius of the plate. Find the e.g. of the remainder from the center of circular plate”. This question is standard in competitive examination syllabi for Strength Of Materials.

2n - 3 is the correct answer to “A framed structure is perfect if it contains members equal to (where n = number of joints in a frame)”. This question is standard in competitive examination syllabi for Strength Of Materials.

All of the above is the correct answer to “In the equation of virtual work, following force is neglected”. This question is standard in competitive examination syllabi for Strength Of Materials.

Double is the correct answer to “The M.I. of hollow circular section about a central axis perpendicular to section as compared to its M.I. about horizontal axis is”. This question is standard in competitive examination syllabi for Strength Of Materials.

Constitute a couple is the correct answer to “Two non-collinear parallel equal forces acting in opposite direction”. This question is standard in competitive examination syllabi for Strength Of Materials.

All of the above is the correct answer to “Which of the following is the example of lever of first order”. This question is standard in competitive examination syllabi for Strength Of Materials.

The mid point of its axis is the correct answer to “The center of gravity of a uniform lamina lies at”. This question is standard in competitive examination syllabi for Strength Of Materials.

Concurrence of the medians is the correct answer to “The center of gravity of a triangle lies at the point of”. This question is standard in competitive examination syllabi for Strength Of Materials.

50 is the correct answer to “A flywheel on a motor goes from rest to 1000 rpm in 6 sec. The number of revolutions made is nearly equal to”. This question is standard in competitive examination syllabi for Strength Of Materials.

$$\frac{{3{\text{r}}}}{8}$$ is the correct answer to “A particle inside a hollow sphere of radius r, having coefficient of friction $$\frac{1}{{\sqrt 3 }}$$ can rest upto height of”. This question is standard in competitive examination syllabi for Strength Of Materials.

$$\frac{{2{\text{L}}}}{3}$$ is the correct answer to “The center of percussion of the homogeneous rod of length L suspended at the top will be”. This question is standard in competitive examination syllabi for Strength Of Materials.

Both (A) and (B) above is the correct answer to “The necessary condition for forces to be in equilibrium is that these should be”. This question is standard in competitive examination syllabi for Strength Of Materials.

$$\frac{{3{\text{r}}}}{2}$$ is the correct answer to “The centre of percussion of a solid cylinder of radius r resting on a horizontal plane will be”. This question is standard in competitive examination syllabi for Strength Of Materials.

Less is the correct answer to “Dynamic friction as compared to static friction is”. This question is standard in competitive examination syllabi for Strength Of Materials.

Moment of a force and angular momentum is the correct answer to “Which of the following do not have identical dimensions”. This question is standard in competitive examination syllabi for Strength Of Materials.

Nature of surfaces is the correct answer to “The co-efficient of friction depends upon”. This question is standard in competitive examination syllabi for Strength Of Materials.