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EMq1 36-70

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EMq1 36-70
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35 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Moment of inertia of an area about an axis is equal to the sum of moment of inertia about an axis passing through the centroid parallel to the given axis and ____

area and square of the distance between two par-allel axes

area and distance between two parallel axes

square of the area and distance between two par-allel axes

square of the area and square of the distance be-tween two parallel axes

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the unit of mass moment of inertia?

kg-m^4

kg-m^3

kg-m

kg-m^2

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The number of independent degrees of freedom is:

Square root of the square of the difference of total degrees of freedom - number of constrain equations

Square root of the total degrees of freedom - num-ber of constrain equations

Total degrees of freedom - number of constrain equations

Total degrees of freedom - half the number of con-strain equations

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What velocity is normally referred to as the derivative of position vector with respect to time?

Decreasing velocity

Average velocity

Instantaneous velocity

Increasing velocity

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What refers to a force by which work done on a parti-cle as it moves around any closed path is zero?

Natural force

Virtual force

Conservative force

Non-conservative force

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When a force causes a change in mechanical energy when it moves around a closed path, it is said to be ____ force.

natural

virtual

conservative

non-conservative

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The following are quantities that describe motion and uses Newton's law of motion and d'Alembert's princi-ple except one. Which one?

Time

Mass

Acceleration

Force

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