Engineering Mechanics | Mechanical Engineering

A ladder is resting on a rough ground and leaning against a smooth vertical wall. The force of friction will act

Byadmin September 14, 2022

Question: A ladder is resting on a rough ground and leaning against a smooth vertical wall. The force of friction will act
[A].

downward at its upper end

[B].

upward at its upper end

[C].

zero at its upper end

[D].

perpendicular to the wall at its upper end

Answer: Option C

Explanation:

No answer description available for this question.

Heat Transfer | Mechanical Engineering | Refrigeration and Air Conditioning

Which of the following refrigerant has the maximum ozone depletion potential in the stratophere?

Question: Which of the following refrigerant has the maximum ozone depletion potential in the stratophere?
[A].

Ammonia
[B].
Carbon dioxide
[C].
Sulphur dioxide
[D].
Flourine

Answer: Option D

Explanation:

No answer description available for this question.

Read More Which of the following refrigerant has the maximum ozone depletion potential in the stratophere?
Heat Transfer | Mechanical Engineering | Refrigeration and Air Conditioning

During sensible cooling of air __________ decreases.

Question: During sensible cooling of air __________ decreases.
[A].

wet bulb temperature
[B].
relative humidity
[C].
dry bulb temperature
[D].
specific humidity

Answer: Option C

Explanation:

No answer description available for this question.

Read More During sensible cooling of air __________ decreases.
Engineering Mechanics | Mechanical Engineering

The cartesian equation of trajectory is(where u = Velocity of projection, α = Angle of projection, and x, y = Co-ordinates of any point on the trajectory after t seconds.)

Question: The cartesian equation of trajectory is(where u = Velocity of projection, α = Angle of projection, and x, y = Co-ordinates of any point on the trajectory after t seconds.)
[A].

[B].

[C].

[D].

Answer: Option C

Explanation:

No answer description available for this question.

Read More The cartesian equation of trajectory is(where u = Velocity of projection, α = Angle of projection, and x, y = Co-ordinates of any point on the trajectory after t seconds.)
Center Of Gravity And Centroid | Engineering Mechanics

Locate the center of gravity of the volume generated by revolving the shaded area about the z axis. The material is homogeneous.

Question: Locate the center of gravity of the volume generated by revolving the shaded area about the z axis. The material is homogeneous.
[A].

= 2.80 ft
[B].
= 2.50 ft
[C].
= 2.67 ft
[D].
= 3.00 ft

Answer: Option C

Explanation:

No answer description available for this question.

Read More Locate the center of gravity of the volume generated by revolving the shaded area about the z axis. The material is homogeneous.
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

If the resultant of two equal forces has the same magnitude as either of the forces, then the angle between the two forces is

Question: If the resultant of two equal forces has the same magnitude as either of the forces, then the angle between the two forces is
[A].

30°
[B].
60°
[C].
90°
[D].
120°

Answer: Option D

Explanation:

No answer description available for this question.

Read More If the resultant of two equal forces has the same magnitude as either of the forces, then the angle between the two forces is

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