Over a block of weight W, the theory of friction is described. Which of the following describes the surface on which of the following block is located?

Mechanical Engineering : Engineering Mechanics - Quiz(MCQ)

Non-rigid

Coloured red

Having density in negative

The motion of that block is always horizontal

Correct Answer : Option (A) : Non-rigid

Explanation : A deformable surface is a block used to teach the theory of friction. Dry friction occurs when there is no lubricating fluid present between the surfaces in contact, according to the theory of friction. As a result, to demonstrate that the same tests can be performed on a non-rigid/deformable surface.

Recently Updated in Engineering Mechanics Questions

The coefficient of restitution for elastic bodies is one.

Correct

Incorrect

Both (A) and (B)

Neither (A) nor (B)

Correct Answer : Incorrect

Explanation : Coefficient of restitution for elastic bodies is 0 - 1.

Coefficient of restitution for perfect elastic bodies is 1.

Which of the following type of screws is used in the machines?

Round-threaded

Helical-threaded

Square-threaded

Rectangle-threaded

Correct Answer : Square-threaded

Explanation : In the machines, square threaded screws are employed. Because screws are commonly employed as fasteners. The fundamental benefit of screws is that the friction aids in the structure’s retention. Screws also aid in the fast and efficient joining of the structure.

The term 'force' may be defined as an agent which produces or tends to produce, destroys or tends to destroy motion.

Agree

Disagree

Both (A) and (B)

None of the above

Correct Answer : Agree