Engineering Mech - OBJECTIVES Flashcards
Which support has one moment?
A. Frictionless guide
B. Pin connection
C. Fixed support
D. Roller
Fixed Supporr
A build-in, fixed support has how many reactions and moment?
A. 1 reaction and 1 moment
B. 2 reactions and 1 moment
C. 1 reaction and 2 moments
D. 2 reactions and no moment
2 reactions 1 moment
A link or cable support has how many reactions?
A. None
B. 1
C. 2
D. 3
1
A roller support has how many reactions?
A. None
B. 1
C. 2
D. 3
1
When will a three-force member be considered in equilibrium?
A. When the sum of the two forces is equal to the third force.
B. When they are concurrent or parallel.
C. When they are coplanar.
D. All of the above
When they are concurrent or parallel
What is a concurrent force system?
A. All forces act at the same point.
B. All forces have the same line of action.
C. All forces are parallel with one another.
D. All forces are in the same plane.
All forces act at the same point
What refers to a pair of equal, opposite and parallel forces?
A. Couple
B. Moment
C. Torque
D. All of the above
Couple
What refers to the force that holds part of the rigid body together?
A. Natural force
B. External force
C. Internal force
D. Concentrated force
Internal forces
What is the branch of engineering mechanics which refers to the study of rigid body in motion without reference to the force that causes the motion?
A. Statics
B. Kinetics
C. Kinematics
D. Dynamics
Kinematics
What is the branch of engineering mechanics which refers to the study of rigid body in motion under the action of forces?
A. Statics
B. Strenght of materials
C. Kinematics
D. Dynamics
Dynamics
What is the branch of engineering mechanics which refers to the study of stationary rigid body?
A. Statics
B. Kinetics
C. Kinematics
D. Dynamics
Statics
What is the science that describes and predicts the effect on bodies at rest or in motion by forces acting on it?
A. Engineering Mechanics
B. Theory of Structures
C. Mechanics of Materials
D. Strength of Materials
Engineering mechanics
What refers to a negligible body when compared to the distances involved regarding its motion?
A. Particle
B. Atomic substance
C. Element
D. Quarks
Particle
The resulting force of a distributed load is always acting at:
A. the center of the beam subjected to the distributed load
B. the centroid of the area of the loading curve
C. the 1/3 point from the higher intensity side of the loading curve
D. the 2/3 point from the higher intensity side of the loading curve
the centroid of the area of the loading curve
The resultant force of a distributed load is always equal to:
A. twice the area under the loading curve
B. half the area under the loading curve
C. the area under the loading curve
D. one-fourth the area under the loading curve
the area under the loading curve
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
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.
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.
What refers to the branch of mathematics which deals with the dimensions of quantities?
A. Unit analysis
B. Dimensional analysis
C. System analysis
D. Homogeneity analysis
Dimensional analysis
What is a “simple beam”?
A. A beam supported only at its ends.
B. A beam supported with a fixed support at one end and non on the other end.
C. A beam with more than two supports.
D. A beam with only one support at the midspan.
A beam supported only at its ends.
What assumption is used in the analysis of uniform flexible cable?
A. Cable is flexible.
B. Cable is inextensible.
C. The weight of the cable is very small when compared to the loads supported by the cable.
D. All of the above
All of the above
“The sum of individual moments about a point caused by multiple concurrent forces is equal to the moment of the resultant force about the same point”. This statement is known as ____.
A. Pappus proposition
B. D’ Alembert’s principle
C. Varignon’s theorem
D. Newton’s method
Varignon’s theorem
“Two forces acting on a particle may be replaced by a single force called resultant which can be obtained by drawing diagonal of parallelogram, which has the sides equal to the given forces”. This statement is known as _____.
A. Pappus Propositions
B. Principle of Transmissibility
C. Parallelogram Law
D. Varignon’s Theorem
Parallelogram Law
“The condition of equilibrium or motion of a rigid body remains unchanged if a force acting at a given point of the rigid body is replaced by a force of same magnitude and direction, but acting at a different point provided that the two forces have the same line of action”. This statement is known as ______.
A. Pappus Propositions
B. Principle of Transmissibility
C. Parallelogram Law
D. Varignon’s Theorem
Principle of Transmissibility
“If two forces acting simultaneously on a particle can be represented by the two sides of a triangle taken in order that the third side represents the resultant in the opposite order”. This statement is known as ______.
A. Principle of Transmissibility
B. Parallelogram Law
C. Varignon’s Theorem
D. Triangle Law of Forces
Triangle Law of Forces