ME202-FinalExam-Answers

Acceleration is the first derivative of which of the following?

Choose one answer.

	a. Time
	b. Distance
	c. Velocity
	d. None of the above

Question 2

Cylindrical coordinates comprise which of the following vectors?

Choose one answer.

	a. Position
	b. Acceleration
	c. Velocity
	d. All of the above

Question 3

Distance is the integral of which of the following?

Choose one answer.

	a. Time
	b. Velocity
	c. Acceleration
	d. None of the above

Question 4

During projectile motion, which of the following statements about acceleration is true?

Choose one answer.

	a. Acceleration is constant.
	b. Acceleration acts vertically downwards.
	c. Acceleration is 9.81 m/s².
	d. All of the above

Question 5

The absolute position of two particles is measured with respect to the origin of which of the following frames of motion?

Choose one answer.

	a. Fixed frame
	b. Moving frame
	c. Both A and B
	d. None of the above

Question 6

Velocity is the integral of which of the following?

Choose one answer.

	a. Time
	b. Distance
	c. Acceleration
	d. None of the above

Question 7

Which of the following components are used to define the position of a particle in one-dimension using polar coordinates?

Choose one answer.

	a. Radial coordinates
	b. Traverse coordinates
	c. Both A and B
	d. None of the above

Question 8

Which of the following statements about ‘n’ axis during curvilinear motion in one-dimension is true?

Choose one answer.

	a. The ‘n’ axis is tangent to‘t’ axis.
	b. The ‘n’ axis is perpendicular to‘t’ axis.
	c. The ‘n’ axis is at an angle of 45 degrees to‘t’ axis.
	d. None of the above

Question 9

Which of the following statements about ‘t’ axis during curvilinear motion in one-dimension is true?

Choose one answer.

	a. The‘t’ axis is tangent to the curve.
	b. The‘t’ axis is perpendicular to the curve.
	c. The‘t’ axis is at an angle of 45 degrees to the curve.
	d. None of the above

Question 10

Velocity is the first derivative of which of the following?

Choose one answer.

	a. Time
	b. Distance
	c. Acceleration
	d. None of the above

Question 11

A force displacing a particle produces work. The work is positive if which of the following is true?

Choose one answer.

	a. Force and displacement are in the same direction.
	b. Force and displacement are in the opposite direction.
	c. Force and displacement are normal to each other.
	d. None of the above

Question 12

A force displacing a particle produces work. The work is negative if which of the following is true?

Choose one answer.

	a. Force and displacement are in the same direction.
	b. Force and displacement are in the opposite direction.
	c. Force and displacement are normal to each other.
	d. None of the above

Question 13

A force displacing a particle produces work. The work is zero if which of the following is true?

Choose one answer.

	a. Force and displacement are in the same direction.
	b. Force and displacement are in the opposite direction.
	c. Force and displacement are normal to each other.
	d. None of the above

Question 14

Acceleration in cylindrical coordinates involves which of the following directions?

Choose one answer.

	a. Radial
	b. Z
	c. Traverse
	d. All of the above

Question 15

Angular Momentum is also known as which of the following?

Choose one answer.

	a. Couple of a couple
	b. Force of a force
	c. Moment of a momentum
	d. Force of a momentum

Question 16

Centripetal acceleration acts in which of the following directions?

Choose one answer.

	a. Tangential
	b. Parallel
	c. Normal
	d. All of the above

Question 17

Efficiency of a machine is generally defined by which of the following?

Choose one answer.

	a. Power Output divided by Power Input.
	b. Power Input divided by Power Output.
	c. Energy Input divided by Energy Output.
	d. None of the above

Question 18

Energy of motion is also known as which of the following?

Choose one answer.

	a. Kinetic energy
	b. Potential energy
	c. Both A and B
	d. None of the above

Question 19

Energy of position is also known as which of the following?

Choose one answer.

	a. Kinetic energy
	b. Potential energy
	c. Both A and B
	d. None of the above

Question 20

Equations of motion in cylindrical coordinates involve how many components?

Choose one answer.

	a. 1
	b. 2
	c. 3
	d. 4

Question 21

Fill in the blank. Efficiency of a machine in the real world is generally _______________.

Choose one answer.

	a. More than 1
	b. Less than 1
	c. Equal to 1
	d. Undefined

Question 22

Fill in the blank. The coefficient of restitution during impact ranges from ___________ to ____________.

Choose one answer.

	a. 0, 2
	b. 0, 1
	c. 1, 2
	d. 0, 3

Question 23

In FPS units, what is the standard unit of force?

Choose one answer.

	a. Newton
	b. Pound
	c. Kilogram
	d. Slugs

Question 24

In SI units, what is the standard unit of force?

Choose one answer.

	a. Newton
	b. Pound
	c. Kilogram
	d. Slugs

Question 25

In SI units, what is the standard unit of impulse?

Choose one answer.

	a. (1 J) (1 s)
	b. (1 ft.lb) (1 s)
	c. (1 N) (1 s)
	d. (1 slug) (1 m/s²)

Question 26

In SI units, what is the standard unit of Kinetic energy?

Choose one answer.

	a. Newton
	b. Pound
	c. Joule
	d. ft-lb

Question 27

In SI units, what is the standard unit of power?

Choose one answer.

	a. Newton
	b. Dyne
	c. Watt
	d. Horsepower

Question 28

In SI units, what is the standard unit of work?

Choose one answer.

	a. Newton
	b. Pound
	c. Joule
	d. ft-lb

Question 29

In US customary units, what is the standard unit of work?

Choose one answer.

	a. Newton
	b. Pound
	c. Joule
	d. ft-lb

Question 30

In US customary units, what is the standard unit of power?

Choose one answer.

	a. Newton
	b. Dyne
	c. Watt
	d. Horsepower

Question 31

In US customary units, what is the standard unit of impulse?

Choose one answer.

	a. (1 J) (1 s)
	b. (1 lb) (1 s)
	c. (1 N) (1 s)
	d. (1 slug) (1 m/s²)

Question 32

Newton’s “Second” law is also known as which of the following?

Choose one answer.

	a. Law of inertia
	b. Law of force
	c. Law of action-reaction
	d. Law of gravitational attraction

Question 33

Newton’s “Third” law is also known as which of the following?

Choose one answer.

	a. Law of inertia
	b. Law of force
	c. Law of action-reaction
	d. Law of gravitational attraction

Question 34

The capacity of electric plants is given by which of the following?

Choose one answer.

	a. Force
	b. Displacement
	c. Work
	d. Power

Question 35

What is the coefficient of restitution for perfectly elastic impact?

Choose one answer.

	a. 0
	b. 1
	c. 2
	d. 0.5

Question 36

What is the coefficient of restitution for perfectly plastic impact?

Choose one answer.

	a. 0
	b. 1
	c. 2
	d. 0.5

Question 37

Which of the following best describes what Newton’s 3rd law states?

Choose one answer.

	a. Newton’s 3rd law states that each action has a reaction equal in magnitude.
	b. Newton’s 3rd law states that each action has a reaction opposite in direction.
	c. Both A and B
	d. None of the above

Question 38

Which of the following is equivalent to 1 dyne (dyn)?

Choose one answer.

	a. (1 kg) (1 m/s²)
	b. (1 slug) (1 ft/sec²)
	c. (1 g) (1 cm/sec²)
	d. (1 slug) (1 m/s²)

Question 39

Which of the following is equivalent to 1 horsepower (hp)?

Choose one answer.

	a. 100 (1 J) /(1 s)
	b. 550 (1 ft.lb)/ (1 s)
	c. 200 (1 N) /(1 m)
	d. 100 (1 slug) /(1 m/s²)

Question 40

Which of the following is equivalent to 1 Joule (J)?

Choose one answer.

	a. (1 kg) (1 m)
	b. (1 lb) (1 ft)
	c. (1 N) (1 m)
	d. (1 slug) (1 m/s²)

Question 41

Which of the following is equivalent to 1 Newton (N)?

Choose one answer.

	a. (1 kg) (1 m/s²)
	b. (1 slug) (1 ft/sec²)
	c. (1 kg) (1 ft/sec²)
	d. (1 slug) (1 m/s²)

Question 42

Which of the following is equivalent to 1 Pound (lb)?

Choose one answer.

	a. (1 kg) (1 m/s²)
	b. (1 slug) (1 ft/sec²)
	c. (1 kg) (1 ft/sec²)
	d. (1 slug) (1 m/s²)

Question 43

Which of the following is equivalent to 1 watt (W)?

Choose one answer.

	a. (1 J) /(1 s)
	b. (1 ft.lb)/ (1 s)
	c. (1 N) /(1 m)
	d. (1 slug)/ (1 m/s²)

Question 44

Which of the following statements about impact is false?

Choose one answer.

	a. Impact occurs when two bodies collide.
	b. The time of impact is very small.
	c. The forces are very small.
	d. The forces are large.

Question 45

Which of the following statements about Kinetic energy is false?

Choose one answer.

	a. Kinetic Energy is always positive.
	b. Kinetic Energy has the same unit as work.
	c. Kinetic energy is independent of mass of the particle.
	d. Kinetic energy is dependent on the velocity of the particle.

Question 46

Which of the following statements about oblique impact is false?

Choose one answer.

	a. The particles after impact move with known velocities.
	b. The particles after impact move in unknown directions.
	c. The particles after impact move with unknown velocities.
	d. In the case of planar oblique collision, there are four unknown quantities.

Question 47

Which of the following statements about potential function is true?

Choose one answer.

	a. Potential function involves gravitational forces.
	b. Potential function involves elastic forces.
	c. Both A and B
	d. None of the above

Question 48

Which of the following statements is true of a force, when the work done by the force is not dependent on the path?

Choose one answer.

	a. The force is a conservative force.
	b. The force is a non conservative force.
	c. Both A and B
	d. None of the above

Question 49

Which of the following statements is true of the conservation of energy principle?

Choose one answer.

	a. It involves potential energy.
	b. It involves kinetic energy.
	c. Both A and B
	d. None of the above

Question 50

Work done by a force is negative if which of the following is true?

Choose one answer.

	a. Weight moves upwards.
	b. Weight moves downwards.
	c. Both A and B
	d. None of the above

Question 51

Work done by a variable force generally requires which mathematical formulation?

Choose one answer.

	a. Integration
	b. Differentiation
	c. Both A and B
	d. None of the above

Question 52

Work done by a weight is positive if which of the following is true?

Choose one answer.

	a. Weight moves upwards.
	b. Weight moves downwards.
	c. Both A and B
	d. None of the above

Question 53

Work done by a weight is positive if which of the following is true?

Choose one answer.

	a. Weight moves upwards.
	b. Weight moves downwards.
	c. Both A and B
	d. None of the above

Question 54

Newton’s “First” law is also known as which of the following?

Choose one answer.

	a. Law of inertia
	b. Law of force
	c. Law of action-reaction
	d. Law of gravitational attraction

Question 55

Under which of the following conditions should coriolis acceleration be considered?

Choose one answer.

	a. When translating reference frames are used
	b. When rotating reference frames are used
	c. Both A and B.
	d. None of the above

Question 56

When there is no slip between two bodies which move along different paths, which of the following is true about tangential acceleration?

Choose one answer.

	a. Tangential acceleration of both particles is the same.
	b. Tangential acceleration of both particles is different.
	c. Both A and B.
	d. None of the above

Question 57

When there is no slip between two bodies which move along different paths, which of the following is true about normal acceleration?

Choose one answer.

	a. Tangential acceleration of both particles is the same.
	b. Tangential acceleration of both particles is different.
	c. Both A and B.
	d. None of the above

Question 58

Which of the following exemplifies when coriolis acceleration should be considered?

Choose one answer.

	a. During rocket motion
	b. During projectile motion
	c. When bodies affected by rotation of earth
	d. All of the above

Question 59

Which of the following statements about relative tangential acceleration is true?

Choose one answer.

	a. Relative tangential acceleration is perpendicular to relative position.
	b. Relative tangential acceleration is parallel to relative position.
	c. Relative tangential acceleration is at 45 degrees to relative position.
	d. None of the above

Question 60

Which of the following statements about instantaneous center (IC) is true?

Choose one answer.

	a. IC is perpendicular to the velocity.
	b. IC is parallel to the velocity.
	c. IC is perpendicular to the angular velocity.
	d. None of the above.

Question 61

Angular acceleration of a two-dimensional rigid body can be which of the following?

Choose one answer.

	a. Constant
	b. Variable
	c. Both A and B
	d. None of the above

Question 62

Choose the best answer to fill in the blank. Impulses caused at the connections of system of rigid particles are ________________.

Choose one answer.

	a. Internal
	b. External
	c. Both internal and external
	d. Neither internal nor external

Question 63

Fill in the blank. Moment of Inertia (I) generally involves ______________ integral.

Choose one answer.

	a. Single
	b. Double
	c. Triple
	d. Quadruple

Question 64

Fill in the blank. Principle of linear momentum states that for connected system of particles the algebraic sum of linear impulse is __________.

Choose one answer.

	a. 1
	b. 0
	c. 0.5
	d. 2

Question 65

Fill in the blank. Radius of gyration is the square root of ________________.

Choose one answer.

	a. Moment of Inertia (I) divided by mass (m).
	b. Moment of Inertia (I) divided by force (N).
	c. Moment of Inertia (I) divided by displacement.
	d. None of the above

Question 66

In SI units, what is the standard unit of Moment of Inertia (I)?

Choose one answer.

	a. (Kg) (m²)
	b. (Slug) (ft²)
	c. (N) (m²)
	d. (lb) (ft²)

Question 67

In solids of revolution which of the following is true?

Choose one answer.

	a. x-y plane rotates about x axis.
	b. x-y plane rotates about z axis.
	c. y-z plane rotates about z axis.
	d. y-z plane rotates about y axis.

Question 68

In US customary units, what is the standard unit Moment of Inertia (I)?

Choose one answer.

	a. (Kg) (m²)
	b. (Slug) (ft²)
	c. (N) (m²)
	d. (lb) (ft²)

Question 69

Kinetic energy of a two-dimensional rigid body is zero under which circumstance?

Choose one answer.

	a. Body rotating about a pin support
	b. Wheel rotating without slipping
	c. Force acts perpendicular in direction of displacement
	d. All of the above

Question 70

Moment of Inertia (I) is equivalent to which of the following in linear motion?

Choose one answer.

	a. Acceleration
	b. Momentum
	c. Impulse
	d. Mass

Question 71

Moment of Inertia (I) is integral for which of the following?

Choose one answer.

	a. First moment of mass
	b. Second moment of mass
	c. Both A and B
	d. None of the above

Question 72

The center of mass generally describes which of the following?

Choose one answer.

	a. Circular path
	b. Linear path
	c. Both A and B
	d. None of the above

Question 73

The equation of motion for two-dimensional rigid body is applied to which of the following?

Choose one answer.

	a. Center of gravity
	b. Center of mass
	c. Origin
	d. None of the above

Question 74

Which of the following best characterizes kinetic energy of a two-dimensional rigid body during translation?

Choose one answer.

	a. Purely translation kinetic energy
	b. A combination of translation and rotational kinetic energy
	c. Purely rotational kinetic energy
	d. None of the above

Question 75

Which of the following best characterizes kinetic energy of a two-dimensional rigid body during rotation?

Choose one answer.

	a. Purely translation kinetic energy
	b. A combination of translation and rotational kinetic energy
	c. Purely rotational kinetic energy
	d. None of the above

Question 76

Which of the following is true of Moment of Inertia (I)?

Choose one answer.

	a. It is a positive quantity.
	b. It is a negative quantity.
	c. Both A and B
	d. None of the above

Question 77

Which of the following methods can be used to compute Moment of Inertia (I)?

Choose one answer.

	a. Shell method
	b. Disk method
	c. Volume method
	d. All of the above

Question 78

Which of the following statements about direct impact is true?

Choose one answer.

	a. The center of mass of the colliding bodies coincides with the line of impact.
	b. The center of mass of the colliding bodies does not coincide with the line of impact.
	c. Both A and B
	d. None of the above

Question 79

Which of the following statements about eccentric impact is true?

Choose one answer.

	a. The center of mass of the colliding bodies coincides with the line of impact.
	b. The center of mass of the colliding bodies does not coincide with the line of impact.
	c. Both A and B
	d. None of the above

Question 80

Moment of Inertia (I) is applied to bodies undergoing which type of acceleration?

Choose one answer.

	a. Linear acceleration
	b. Angular acceleration
	c. Both A and B
	d. None of the above

Question 81

In three-dimension, internal force and moments have which the following effects on energy?

Choose one answer.

	a. Change it
	b. Will not change it
	c. Both A and B
	d. None of the above

Question 82

In three-dimensions, internal force and moments have which the following effects on angular momentum?

Choose one answer.

	a. Internal force and moments change angular momentum.
	b. Internal force and moments do not change angular momentum.
	c. Both A and B
	d. None of the above

Question 83

In three-dimensions, which of the following is true of angular velocity and angular momentum?

Choose one answer.

	a. Angular velocity and angular momentum is parallel.
	b. Angular velocity and angular momentum is not parallel.
	c. Both A and B
	d. None of the above

Question 84

In three-dimensions, which of the following is true of the product of inertia?

Choose one answer.

	a. The product of inertia can be a negative quantity.
	b. The product of inertia can be a positive quantity.
	c. The product of inertia can be zero.
	d. All of the above

Question 85

The position of a body in three-dimensions is comprised of how many components?

Choose one answer.

	a. 1
	b. 3
	c. 6
	d. 9

Question 86

What is the total angular velocity of two bodies in three-dimensions?

Choose one answer.

	a. The sum of angular velocity of both bodies
	b. The difference of angular velocity of both bodies
	c. The product of angular velocity of both bodies
	d. None of the above

Question 87

Which of the following are examples of space curves in three-dimensions?

Choose one answer.

	a. Body cone
	b. Space cone
	c. Both A and B
	d. None of the above

Question 88

Which of the following is true of angular velocity in three-dimensions?

Choose one answer.

	a. Angular velocity may change magnitude.
	b. Angular velocity may change direction.
	c. Both A and B
	d. None of the above

Question 89

For a critically damped case, the ratio of the damping coefficient to critical damping coefficient has which of the following values?

Choose one answer.

	a. 1
	b. 0
	c. 2
	d. 0.5

Question 90

Forced vibration is generally caused by which of the following?

Choose one answer.

	a. Gravitational force
	b. Elastic force
	c. Intermittent force
	d. None of the above

Question 91

If the ratio of natural frequency to forcing frequency in forced undamped vibration is approximately 0, which of the following is the magnification factor?

Choose one answer.

	a. 1
	b. 0
	c. Infinity
	d. None of the above

Question 92

If the ratio of natural frequency to forcing frequency in forced undamped vibration is approximately 1, which of the following is the magnification factor?

Choose one answer.

	a. 1
	b. 0
	c. Infinity
	d. None of the above

Question 93

If the ratio of natural frequency to forcing frequency in forced undamped vibration is approximately infinity, which of the following is the magnification factor?

Choose one answer.

	a. 1
	b. 0
	c. Infinity
	d. None of the above

Question 94

Natural frequency of vibration has which of the following units?

Choose one answer.

	a. m/s
	b. rad
	c. rad/s
	d. N/s

Question 95

The damping coefficient has which of the following units?

Choose one answer.

	a. N.s/m
	b. lb.s/ft
	c. Both A and B
	d. None of the above

Question 96

The damping force in damped forced vibrations is proportional to which of the following?

Choose one answer.

	a. Momentum
	b. Displacement
	c. Weight
	d. Velocity

Question 97

Undamped vibration has which of the following characteristics?

Choose one answer.

	a. It is definite.
	b. It is indefinite.
	c. Both A and B
	d. None of the above

Question 98

Vibrations in a real world application has which of the following characteristics?

Choose one answer.

	a. They are damped.
	b. They are undamped.
	c. Both A and B
	d. None of the above

Question 99

Which of the following is a characteristic of differential equations describing forced undamped vibration?

Choose one answer.

	a. Non-homgenous
	b. Linear
	c. Ordinary
	d. All of the above

Question 100

Free vibration is generally caused by which of the following?

Choose one answer.

	a. Gravitational force
	b. Elastic force
	c. Both A and B
	d. None of the above