Center Of Gravity And Centroid | Engineering Mechanics

Locate the centroid of the shaded area.

Byadmin July 24, 2022

Question: Locate the centroid of the shaded area.
[A].

= 0.667 m, = 2.40 m

[B].

= 0.500 m, = 2.80 m

[C].

= 0.800 m, = 2.00 m

[D].

= 0.600 m, = 2.60 m

Answer: Option C

Explanation:

No answer description available for this question.

Engineering Mechanics | Equilibrium Of A Particle

Determine the force F needed to hold the 4-kg lamp in the position shown.

Question: Determine the force F needed to hold the 4-kg lamp in the position shown.
[A].

F = 39.2 N
[B].
F = 68.0 N
[C].
F = 34.0 N
[D].
F = 19..62 N

Answer: Option A

Explanation:

No answer description available for this question.

Read More Determine the force F needed to hold the 4-kg lamp in the position shown.
Engineering Mechanics | Mechanical Engineering

A lifting machine lifts a load of 1000N through a distance of 0.2 m by means of an effort of 200N through a distance of 1m. This machine is an ideal one.

Question: A lifting machine lifts a load of 1000N through a distance of 0.2 m by means of an effort of 200N through a distance of 1m. This machine is an ideal one.
[A].

Correct
[B].
Incorrect

Answer: Option A

Explanation:

No answer description available for this question.

Read More A lifting machine lifts a load of 1000N through a distance of 0.2 m by means of an effort of 200N through a distance of 1m. This machine is an ideal one.
Engineering Mechanics

Least force required to draw a body up the inclined plane is W sin (plane inclination + friction angle) applied in the direction___________________?

Least force required to draw a body up the inclined plane is W sin (plane inclination + friction angle) applied in the direction___________________?

A. along the plane
B. horizontally
C. vertically
D. at an angle equal to the angle of friction to the inclined plane
E. unpredictable

Read More Least force required to draw a body up the inclined plane is W sin (plane inclination + friction angle) applied in the direction___________________?
Engineering Mechanics | Mechanical Engineering

Moment of inertia of a hollow circular section, as shown in the below figure about X-axis, is

Question: Moment of inertia of a hollow circular section, as shown in the below figure about X-axis, is
[A].

[B].

[C].

[D].

Answer: Option D

Explanation:

No answer description available for this question.

Read More Moment of inertia of a hollow circular section, as shown in the below figure about X-axis, is
Engineering Mechanics | Mechanical Engineering

A spherical body is symmetrical about its perpendicular axis. According to Routh’s rule, the moment of inertia of a body about an axis passing through its centre of gravity is(where, M = Mass of the body, and S = Sum of the squares of the two semi-axes.)

Question: A spherical body is symmetrical about its perpendicular axis. According to Routh’s rule, the moment of inertia of a body about an axis passing through its centre of gravity is(where, M = Mass of the body, and S = Sum of the squares of the two semi-axes.)
[A].

MS/3
[B].
MS/4
[C].
MS/5
[D].
none of these

Answer: Option C

Explanation:

No answer description available for this question.

Read More A spherical body is symmetrical about its perpendicular axis. According to Routh’s rule, the moment of inertia of a body about an axis passing through its centre of gravity is(where, M = Mass of the body, and S = Sum of the squares of the two semi-axes.)
Engineering Mechanics

Two coplanar couples having equal and opposite moments_________________?

Two coplanar couples having equal and opposite moments_________________?

A. balance each other
B. produce a couple and an unbalanced force
C. are equivalent
D. produce a moment of couple
E. can not balance each other

Read More Two coplanar couples having equal and opposite moments_________________?

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