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PBE > MATH > Flashcards

MATH Flashcards

1
Q

Which is NOT one of the provisions of the Code of Ethics for the Practice of the Chemical Engineering Profession where we shall at all times strive to serve he public interest?

A

We shall always make ourselves ready and available and be willing to render professional service, even without
compensation, in cases of accidents and other exigencies

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2
Q

Process of anti derivative

A

Integration

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3
Q

By equating the external work done by applied loads as they deform an
elastic body to the internal strain energy stored in the body, we obtain
a method of determining deflections that
is based on the principle of energy conservation. Which of these is Nor based on this principle?
A. Dynamic loading
C. Axial loading
B. Torsional loading
D. Plexural loading

A

A

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4
Q

What theorem states that if g is differentiable at point x and f is
differentiable at point g(x), then the
composition f g is differentiable at point x?
A. Rolle’s
B. Cramer’s rule
C. chain rule
D. Euler’s

A

C

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5
Q

This analysis is to determine the point at which revenue received equals
the costs associated with receiving the revenue: As a supply-side analysis, it only analyzes the costs of the sales and does NOT analyze how demand may be affected
at different price levels. What is this?
A. Value Analysis
C. Cost-benefit analysis
B. Break even analysis
D. Financial analysis

A

B

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6
Q

An elastomer is a polymer with viscoelasticity and very weak inter-molecular forces, generally having low Young’s modulus and high failure strain compared to other materials. Which of the following is NOT an elastomer?
A. Neoprene
B. Polyurethane
C. Silicone
D. Chloroprene

A

D

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7
Q

What is this state of a body in mechanics that moves freely in any manner on the presence of gravity?
A. Free fall
C. Acceleration
B. Momentum
D. Inertia

A

A

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8
Q

What is the process of recording, summarizing and reporting business
transactions to provide an accurate financial position and performance?
A. Management accounting
B. General accounting
C. Financial accounting
D. Cost accounting

A

C

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9
Q

What is a set of exclusive rights granted by a sovereign state or intergovernmental organization to an invenzor or assignee for a limited period of time in exchange for a detaiLed Public discLosure OF an invention? An invention a solution to a specific technological problem and is a product or a process.
C. Trademark
A. Patent
B. Copyright
D. Technology right

A

A

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10
Q

How do you call the value that appears most often in a set of data?
A. Mean
C. Median
B. Maximum
D. Mode

A

D

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11
Q

Which of these numbers can NOT be a probability?
A. 0.98
C.1. 01
B. 0.33
D. 0.01

A

C

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12
Q

What is the frequency of vibrations per second of a 200 Hz wave?
A. 400 times per second
C. 100 times per second
B. 200 times per second
D. 300 times per second

A

B

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13
Q

Ceramics can be defined as inorganic, non-metallic materials. They are typically crystalline in nature and are compounds formed between metallic and non-metaLlic elements, Which of these is NoT a ceramic?
A. Alumina
C. Neoprene
B. Calcia
D. Silicon Nitride

A

C

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14
Q

In solids, what is this that pertains to an irreversible change in the internal molecular structure of an object? This change may be due to either (or both) an applied force or a change in temperature.
A. Stress deformation
C. Plastic deformation
B. Elastic deformation
D. Strain deformation

A

B

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15
Q

Which of these does NOT pertain to value engineering?
A. Promotes the substitution of materiais and methods with less expensive alternatives, without sacrificing functionality
B. Focused solely on the functions of various components and materials, rather than their physical attributes
C. A systematic and organized approach to provide the necessary functions in a project at the lowest cost
D. A process by which projects are outlined and sequenced for the most favorable outcome

A

D

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16
Q

Which is NOT a product or service of the Bureau of Patents?
A. Certificate of Registration of Utility Model
B. Certificate of Registration of Layout Design
C. Certificate of Registration of Trademarks
D. Certificate of Registration of Industrial Design

A

C

17
Q

Two lines are perpendicular if and only if slopes are what?

A

M1M2=-1

18
Q

Where shall the proper diameter for the steel shaft be based on?
A. Minimum allowable to-cue
B. Maximum allowable angle of twist
C. Maximum allowable compressive stress
D. Maximum allowable shearing stress

A

B

19
Q

What are poor conductors of heat and delays the transfer of heat?
A. Conductors
B. Metals
C. Insulators
D. Superconductors

A

C

20
Q

In the code of Ethics for the Practice of Chemical Engineering in our relations with employer or client, we shall:
A. Make every Effort to bring tö immediate attention of our employer/client any dangerous defect in equipment or
structor dangerous conditions of operation which come into our knowledge for remedial action
B. Hesitate to advise our employer/client to engage the services of other experts or specialists on problems on
which information or experience is inadequate
C. Take undue advantage nor engage in activities that would be unfair to any of the parties concerned
D. Use unfair or improper means in obtaining professional work

A

A

21
Q

To solve joint with no more completely for the forces acting on the joint, we must select a with a joint than two unknown forces involved. This can be started
been determine, acted on by only two ambers. Once forces in one joint have
their effects on adjacent joints are known and then continue solving successive joints until all members have been Found. What is this?
A. Method of members
B. Method of sections
C. Mathod of joints
D. Free body diagrams

A

D

22
Q

Which of these is not that of ceramics?

A

Often pliable in nature

23
Q

What is a set of all points in the plane, the sume of whose distances from two fixed points is a given positive constant that is greater than the distance between the fixed points?

A

Ellipse

24
Q

What is the smallest probability of an event?

A

O

25
Q

which of the statements below pertains to Foreign Reciprocity in RA 9297?

A

No foreign chemical engineer shall be granted any of the right or privelege …

26
Q

What is the frictional force exerted the mass by the surrounding medium (air, water, oil, etc) ?
A. Normal force
B. Tension force
C. gravitational Force
D. Damping force

A

C?

27
Q

External failure costs are incurred : remedy defects discovered by customers. These costs occur when products or services that fail to reach design -quality standards are NOT detected until after transfer to the customer. Which of these does not pertain to external failure costs?

A

Supplier raiting assessment

28
Q

Which of these is NoT a characteristics of a contract?

A

Non consensuality

29
Q

The object and cause of these contract
are illegal, contrary to law, inexistent or considered simulated. These are contracts which are not subject to ratification.
The right to bring an action to declare a
contract as such does not prescribe,
we right to raise the defense of
illegality cannot be waived and this type of contract has no force or effect-whatsoever.

A

Void contract

30
Q

What problems are concerned with finding the best way to perform a tasks and making use of mathematical tools for solving such problems?

A

Investment analysis analysis

31
Q

A body is accelerating if velocity is increasing with this

A

Time

32
Q

What theory pertains to the numeric convertion of Toughness, of material
in the case of crack existence?

A

Fracture mechanics

33
Q

Which of these is not one of the functions,
powers, and responsibilities of DENR?

A

To monitor and allow the entry or transit of hazardous wastes

34
Q

Where would the light source be in parabolic reflector if the reflected
rays will form a beam parallel to the axis?

A

Focus

35
Q

What is the quantity of matter that
in an object which is a measure of the inertia exhibits in response to any effort effort made to start it, stop it, or otherwise change its state motion ?

A

Friction

36
Q

Velocity and acceleration
are positive when directed
towards a positive displacement
and are negative when pointing to
the opposite direction. A body is
accelerating if its velocity is
increasing with this and it is
decelerating if its velocity is
decreasing with this. What is
this?
A. momentum
B. inertia
C. distance
D. time

A

D

37
Q

At a temperature of 75°C,
a steel tire 12 mm thick and
100 mm wide that is to be
shrunk onto a locomotive
driving wheel 2 m in diameter
just fits over the wheel,
which is at a temperature
of 25°C. Determine the contact
pressure between the tire and
wheel after the assembly cools
to 25°C. Neglect the
deformation of the wheel
caused by the pressure of the
tire. Assume a= 11.7
um/ (m-°C) and E = 200 GPa.
A. 1.474MPa
B. 1.404MPa
C. 1.544MPa
D. 1. 439MPa

A

B

38
Q

A certain businessman,
who is always in a hurry,
walks up an ongoing escalator
at the rate of one step per
second. Twenty steps bring him
to the top. Next day he goes
up at two steps per second,
reaching the top in 32 steps.
How many steps are there in
the escalator?

A

80

PBE (4 decks)

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