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Engineering-mechanics Questions Set 18:

Quiz Mode

A single pin, single bearing, and single hinge can resist

Couple moments

Force

Inertia

Both force and couple moments

Solution:

The distance between the centre of suspension and the centre of percussion of a body is equal to

h / kG

h.kG

h^2/kG

kG^2/h

Solution:

In a collapsed plane truss system, the number of joints (j) and the number of members (m) are related by

m < 2j - 4

m < 2j - 5

m < 2j - 3

m < 2j - 2

Solution:

A truss consists of 10 joints, 12 members, and 6 reaction components. What type of truss is it?

deficient truss

redundant truss

cantilever truss

none of the above

Solution:

In projectile motion, which of the following factors affecting the actual path of motion are typically neglected?

Wind resistance

All of the above

Curvature of Earth

Rotation of Earth

Solution:

What is the change in moment in the shear stress diagram equal to?

It is equal to the total weight.

It is equal to the bending moment.

It is equal to the rotational moment.

It is equal to the area under the shear diagram.

Solution:

A weight of 1000 N can be lifted by an effort of 100 N. If the velocity ratio is 20, then find the Mechanical Advantage and Efficiency.

MA = 20, Efficiency = 50%

MA = 10, Efficiency = 50%

MA = 10, Efficiency = 60%

MA = 20, Efficiency = 60%

Solution:

If a system is in equilibrium and its position depends on many independent variables, the principle of virtual work states that the partial derivatives of its total potential energy with respect to each independent variable must be

-1

infinity

Solution:

A helical spring has N turns of coil with diameter D, and a second spring, made of the same wire and material, has N/2 turns of coil with diameter 2D. If the stiffness of the first spring is k, then the stiffness of the second spring will be:

k/2

k/4

k/3

3k/2

Solution:

If an external force is also applied on the distributed loading, then what happens?

The net load will not be formed as all the forces will be cancelled

The net force will act at the centroid of the structure only

The net force will act on the base of the loading horizontally

The net force will not be ignored, there would be a net force of the distribution, in addition to the external forces

Engineering-mechanics Questions Set 18:

A single pin, single bearing, and single hinge can resist

Solution:

The distance between the centre of suspension and the centre of percussion of a body is equal to

Solution:

In a collapsed plane truss system, the number of joints (j) and the number of members (m) are related by

Solution:

A truss consists of 10 joints, 12 members, and 6 reaction components. What type of truss is it?

Solution:

In projectile motion, which of the following factors affecting the actual path of motion are typically neglected?

Solution:

What is the change in moment in the shear stress diagram equal to?

Solution:

A weight of 1000 N can be lifted by an effort of 100 N. If the velocity ratio is 20, then find the Mechanical Advantage and Efficiency.

Solution:

If a system is in equilibrium and its position depends on many independent variables, the principle of virtual work states that the partial derivatives of its total potential energy with respect to each independent variable must be

Solution:

A helical spring has N turns of coil with diameter D, and a second spring, made of the same wire and material, has N/2 turns of coil with diameter 2D. If the stiffness of the first spring is k, then the stiffness of the second spring will be:

Solution:

If an external force is also applied on the distributed loading, then what happens?

Solution:

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