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PBE > RANDOM > Flashcards

RANDOM Flashcards

1
Q

In the code of Ethics for the Practice of Chemical Engineering relation with peers, we shall NOT:

A

Engage in the significant use of the ideas or written work of another chemical engineer without giving due credit to the person concerned

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2
Q

Which of these does NOT pertain to value engineering?

A

Focused solely on the functions of various components and materials, rather than their physical attributes

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3
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 the 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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4
Q

What is this law that aims to regulate, restrict, or prohibit the importation, manufacture, processing, sale, distribution, use and disposal of chemical substances and mixtures that present unreasonable risk to human health? It likewise prohibits the entry, even in transit, of hazardous and nuclear waste and their disposal into the Philippine territorial limits for whatever purpose; and to provide advancement and facilitate research and studies on toxic chemicals.

A

RA 6969 Toxic Substances, Hazardous and Nuclear Waste Control Act of 1990

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5
Q

The curves that can be obtained as intersections of a cone with a plane are called conics or conic sections. Which does not belong to this group?

A

Sphere

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6
Q

The annuity which refers to a debt payment for recovering the initial amount or capital in equal periodical payments, is known as;

A

Capital recovery annuity

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7
Q

It takes much longer to cook food in the hills than in the plains, because

A

in the hills the atmospheric pressure is lower than that in the plains and therefore water boils at a temperature lower than 100oC causing an increase in cooking time

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8
Q

Moment of inertia is

A

Tensor

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9
Q

A liquid is poured into a pan and heated over a flame. The hot liquid begins rising to the top. This type of heat transfer is called

A

Convection

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10
Q

Which of the following does not belong to the Intellectual Property Rights?

A

Software programming

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11
Q

It is a petty patent for new and industrially applicable technical solution of a problem.

A

utility model

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12
Q

The following needs to be submitted to obtain a filing date:

A

Claims

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13
Q

Patent infringement consists of

A

importation of patented product without the authorization of the owner

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14
Q

Which of the following is patentable?

A

non-evasive and non-surgical belly fat removal

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15
Q

Who can apply for a patent?

A

inventors or authorized representatives

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16
Q

When will the patent become effective?

A

From the date of publication of the grant of the patent

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17
Q

Of the following properties of a wave, the one that is independent of the other is its

A

Amplitude

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18
Q

Minimum number of unequal vectors which can give zero resultant are

A

3

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19
Q

The formation of a rainbow occurs as a result of

A

dispersion

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20
Q

Light year is a unit of

A

Distance

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21
Q

Nuclear sizes are expressed in a unit named

A

Fermi

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22
Q

Mercury is commonly used as a thermometric fluid rather than water because

A

mercury has greater visibility than water

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23
Q

The absorption of ink by blotting paper involves

A

capillary action phenomenon

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24
Q

Out of the following pairs, which one does not have identical dimension?

A

Moment of inertia and moment of a force

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25
Q

Each of the following waves travels at the speed of light except

A

ultrasonic waves

26
Q

Refers to the altering of transverse waves so that vibrations occur in one direction perpendicular to the direction of propagation?

A

Polarization

27
Q

On a cold morning, a metal floor feels colder to your feet than a wood floor because

A

metal conducts heat more easily than wood

28
Q

A unit operation is exemplified by the process of

A

Desorption

29
Q

Zirconia probe is used for the continuous measurement of ________ flue gases going out of the furnace.

A

Oxygen in

30
Q

Typical specifications for design stipulate the gain margin and phase margin to be respectively

A

> 1.7 and > 30°

31
Q

Higher efficiency in the combustion of solid fuel cannot be achieved by

A

keeping the flue gas exhaust temperature very high.

32
Q

In flue gas analysis by Orsat’s apparatus, carbon monoxide is absorbed by

A

Cuprous Chloride

33
Q

The minimum baffle height should be

A

twice the impeller diameter

34
Q

Which of the following temperature measuring instruments need not touch the object whose temperature is being measured?

A

Radiation/infrared pyrometer

35
Q

The normal range of velocity of water in pipes is ______ m/sec.

A

1-2

36
Q

Removable connection of tubes to tube sheet is called

A

Ferrule

37
Q

What is the slope of the operating line in the rectifying section of a distillation column?

A

Infinity

38
Q

For a given design of bubble cap, the number of bubble caps to be used per tray is set by the

A

allowable gas velocity through the slots.

39
Q

The shell side pressure drop in a shell and tube heat exchanger is maximum for baffle

A

orifice

40
Q

________ closure is the weakest enclosure for cylindrical vessels.

A

conical or flat plates

41
Q

Log mean temperature difference in case of multi-pass shell and tube heat exchanger is always

A

less than arithmetic mean value

42
Q

Which of the following reactions occurring during coal gasification is called the Neumann reversal reaction?

A

2CO = C + CO2

43
Q

Maximum work that could be secured by expanding the gas over a given pressure range is the _______ work

A

Isothermal

44
Q

High _______ is an undesirable property for a good refrigerant.

A

Viscosity

45
Q

The ratio of volumes of the mixed reactor to the plug flow reactor (for identical feed composition, flow rate, conversion, and for all positive reaction orders) is always

A

> 1

46
Q

Pick out the wrong statement.

A

Diameter of randomly packed tower is normally more than 1.2 meters

47
Q

In turbulent flow, the

A

shear stresses are generally larger than in a similar laminar flow

48
Q

_________ flow means the flow of incompressible fluid with no shear.

A

potential

49
Q

A negative gain margin expressed in decibels means a/an ________ system

A

unstable

50
Q

Power number is the ratio of

A

drag stress to inertial stress

51
Q

Which of the following is used to set the diameter of the distillation column?

A

Allowable vapor velocity.

52
Q

The function of a transducer is to

A

convert the primary signal into a more useful quantity, usually an electric impulse

53
Q

Which of the following thermocouples will give the highest output for the same value of hot and cold junction temperature?

A

Chromel-constantan

54
Q

Select the correct statement from the following:

A

The amplitude ratio of a pure capacity process is inversely proportional to frequency.

55
Q

Bakelite is

A

same as thermosetting phenol-formaldehyde.

56
Q

________ paper is used in the manufacture of newsprint paper.

A

groundwood

57
Q

Response of a linear control system for a change in set point is called

A

servo problem

58
Q

Hot wire anemometer is used for the measurement of

A

flow rates of fluid

59
Q

Flooding in a vapor-liquid contacting equipment occurs in a tray, when the pressure drop through a tray is _______ the liquid head available in the downcomer.

A

more than

60
Q

Which of the following is an undesirable dynamic characteristic of an instrument ?

A

Time lag

PBE (2 decks)

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