MECHANICS ENGINEERING TEST BANK QUESTIONS
WITH 100% CORRECT ANSWERS 2025 LATEST UPDATE.
⫸ The __________ transfers the moment of inertia of a section or area from its own centroidal axis
to another parallel axis.
A. moment of axis theorem
B. transfer formula
C. parallel axis theorem
D. B or C. Answer: D. B or C
⫸ The mass moment of inertia of a solid sphere about its diameter is
A. 1/5 mr2
B. 2/5 mr2
C. 3/5 mr2
D. 4/5 mr2. Answer: B. 2/5 mr2
⫸ The mass moment of inertia of a thin spherical shell about its diameter is
A. 1/6 mr2
B. 1/3 mr2
C. 1/2 mr2
D. 2/3 mr2. Answer: D. 2/3 mr2
⫸ It is a mathematical property of a section concerned with a surface area and how that area is
distributed about the reference axis.
A. moment of area
B. second moment of area
C. third moment of area
D. fourth moment of area. Answer: B. second moment of area
⫸ It is the material's ability to resist twisting
,A. mass moment of inertia
B. moment of area
C. second moment of area
D. polar moment of area. Answer: D. polar moment of area
⫸ "Any object, wholly or partly immersed in a fluid, is buoyed up by a force equal to the weight
of the fluid displaced by the object". This is known as the ____________.
A. Bernoulli's Principle
B. Torricelli's Principle
C. Archimedes' Principle
D. Pascal's Principle. Answer: C. Archimedes' Principle
⫸ It is the upward force on an object produced by the surrounding fluid in which it is fully or
partially immersed.
A. Archimedes' force
B. fluid pressure
C. buoyancy
D. weight reaction. Answer: C. buoyancy
⫸ A rock of weight 10 N suspended by a string is lowered into water, displacing water of weight
3 N. Determine the tension in the string.
A. 13 N
B. 7 N
C. 10 N
D. 3 N. Answer: B. 7 N
⫸ If the buoyancy of an object exceeds its weight, the object __________.
A. tends to rise
B. tends to sink
C. A or B
D. none of the above. Answer: A. tends to rise
⫸ It is the rate of change of velocity
,A. displacement
B. acceleration
C. momentum
D. impulse. Answer: B. acceleration
⫸ Impulse is equal to ________.
A. force x time
B. change in momentum
C. A or B
D. none of the above. Answer: C. A or B
⫸ Collisions in which objects rebound with the same speed as they had prior to the collision are
known as __________.
A. elastic collisions
B. inelastic collisions
C. static collisions
D. plastic collisions. Answer: A. elastic collisions
⫸ If a 10-kg object experiences a 20-N force for a duration of 0.05-second, then what is the
momentum change of the object?
A. 1 N-s
B. 400 N-s
C. 0.5 N-s
D. 200 N-s. Answer: A. 1 N-s
⫸ When hit, the velocity of a 0.2 kg baseball changes from +25 m/s to -25 m/s. What is the
magnitude of the impulse delivered by the bat to the ball?
A. 1 N-s
B. 5 N-s
C. 10 N-s
D. 20 N-s. Answer: C. 10 N-s
⫸ It is defined as the integral of force with respect to time.
, A. momentum
B. impulse
C. velocity
D. acceleration. Answer: B. impulse
⫸ The SI unit for angular velocity is
A. degrees per second
B. revolutions per second
C. mils per second
D. radians per second. Answer: D. radians per second
⫸ The angular momentum of a rotating object can be calculated by the formula
A. mass moment of inertia x linear velocity
B. mass x linear velocity
C. mass moment of inertia x angular velocity
D. mass x angular velocity. Answer: C. mass moment of inertia x angular velocity
⫸ When a body has more supports than are necessary to maintain equilibrium, the body is said to
be _____.
A. in static equilibrium
B. in dynamic equilibrium
C. statically determine
D. statically indeterminate. Answer: A. in static equilibrium
⫸ When does an equation be considered "dimensionally homogeneous"?
A. When it is unitless
B. When the dimensions of the various terms on the left side of the equation is not the same as the
dimensions of the various terms on the right side.
C. When the degree of the left side of the equation is the same as the right side.
D. When the dimensions of various terms on the left side of the equation is the same as the
dimensions of the various terms on the right side.. Answer: D. When the dimensions of various terms
on the left side of the equation is the same as the dimensions of the various terms on the right side.
WITH 100% CORRECT ANSWERS 2025 LATEST UPDATE.
⫸ The __________ transfers the moment of inertia of a section or area from its own centroidal axis
to another parallel axis.
A. moment of axis theorem
B. transfer formula
C. parallel axis theorem
D. B or C. Answer: D. B or C
⫸ The mass moment of inertia of a solid sphere about its diameter is
A. 1/5 mr2
B. 2/5 mr2
C. 3/5 mr2
D. 4/5 mr2. Answer: B. 2/5 mr2
⫸ The mass moment of inertia of a thin spherical shell about its diameter is
A. 1/6 mr2
B. 1/3 mr2
C. 1/2 mr2
D. 2/3 mr2. Answer: D. 2/3 mr2
⫸ It is a mathematical property of a section concerned with a surface area and how that area is
distributed about the reference axis.
A. moment of area
B. second moment of area
C. third moment of area
D. fourth moment of area. Answer: B. second moment of area
⫸ It is the material's ability to resist twisting
,A. mass moment of inertia
B. moment of area
C. second moment of area
D. polar moment of area. Answer: D. polar moment of area
⫸ "Any object, wholly or partly immersed in a fluid, is buoyed up by a force equal to the weight
of the fluid displaced by the object". This is known as the ____________.
A. Bernoulli's Principle
B. Torricelli's Principle
C. Archimedes' Principle
D. Pascal's Principle. Answer: C. Archimedes' Principle
⫸ It is the upward force on an object produced by the surrounding fluid in which it is fully or
partially immersed.
A. Archimedes' force
B. fluid pressure
C. buoyancy
D. weight reaction. Answer: C. buoyancy
⫸ A rock of weight 10 N suspended by a string is lowered into water, displacing water of weight
3 N. Determine the tension in the string.
A. 13 N
B. 7 N
C. 10 N
D. 3 N. Answer: B. 7 N
⫸ If the buoyancy of an object exceeds its weight, the object __________.
A. tends to rise
B. tends to sink
C. A or B
D. none of the above. Answer: A. tends to rise
⫸ It is the rate of change of velocity
,A. displacement
B. acceleration
C. momentum
D. impulse. Answer: B. acceleration
⫸ Impulse is equal to ________.
A. force x time
B. change in momentum
C. A or B
D. none of the above. Answer: C. A or B
⫸ Collisions in which objects rebound with the same speed as they had prior to the collision are
known as __________.
A. elastic collisions
B. inelastic collisions
C. static collisions
D. plastic collisions. Answer: A. elastic collisions
⫸ If a 10-kg object experiences a 20-N force for a duration of 0.05-second, then what is the
momentum change of the object?
A. 1 N-s
B. 400 N-s
C. 0.5 N-s
D. 200 N-s. Answer: A. 1 N-s
⫸ When hit, the velocity of a 0.2 kg baseball changes from +25 m/s to -25 m/s. What is the
magnitude of the impulse delivered by the bat to the ball?
A. 1 N-s
B. 5 N-s
C. 10 N-s
D. 20 N-s. Answer: C. 10 N-s
⫸ It is defined as the integral of force with respect to time.
, A. momentum
B. impulse
C. velocity
D. acceleration. Answer: B. impulse
⫸ The SI unit for angular velocity is
A. degrees per second
B. revolutions per second
C. mils per second
D. radians per second. Answer: D. radians per second
⫸ The angular momentum of a rotating object can be calculated by the formula
A. mass moment of inertia x linear velocity
B. mass x linear velocity
C. mass moment of inertia x angular velocity
D. mass x angular velocity. Answer: C. mass moment of inertia x angular velocity
⫸ When a body has more supports than are necessary to maintain equilibrium, the body is said to
be _____.
A. in static equilibrium
B. in dynamic equilibrium
C. statically determine
D. statically indeterminate. Answer: A. in static equilibrium
⫸ When does an equation be considered "dimensionally homogeneous"?
A. When it is unitless
B. When the dimensions of the various terms on the left side of the equation is not the same as the
dimensions of the various terms on the right side.
C. When the degree of the left side of the equation is the same as the right side.
D. When the dimensions of various terms on the left side of the equation is the same as the
dimensions of the various terms on the right side.. Answer: D. When the dimensions of various terms
on the left side of the equation is the same as the dimensions of the various terms on the right side.
