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Second Day > CPI, Process, PD AND ED > Flashcards

CPI, Process, PD AND ED Flashcards

1
Q

Manufacture of paper pulp from pulp employing the Foudrinier machine

A

Kraft Process

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2
Q

Method of recovering hydrogen from water gas, carbon monoxide is reacted with steam at 500C in the presence of catalyst to form carbon monoxide and hydrogen

A

Bosch Process

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3
Q

Extraction of aluminum from bauxite

A

Hall’s Process

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4
Q

Process of recovering sulfur from the buried porous cap rock of a salt done and delivering it above ground as a product of suitable purity and condition for use

A

Frasch process

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5
Q

Production of ammonia by direct combination of nitrogen and hydrogen at 600C and under 200-300 atmospheric pressure in the presence of catalyst.

A

Haber-Bosch Process

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6
Q

Soda ash manufacture

A

Solvay process

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7
Q

Sulfonation and extraction process in the manufacture of phenol

A

Dennis Bull Process

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8
Q

Rubber reclaiming process in vulcanized scraps are introduced into a mixer (Banbury) where in the presence of air it is worked under pressure and at high temperature fpor a very short time

A

Babbyry Process

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9
Q

Method of recovering gold and silver from their ores into a soluble from by treatment with cyanides

A

Cyanidation Process

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10
Q

Process for reduction of lead ores; small charge is roasted slowly at low temperature, the lead being collected outside the furnace by means of heat

A

Carinthian process

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11
Q

Formation a rust resistant coating on iron, base metal by oxidation with superheated steam

A

Barff process

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12
Q

Copper or iron sulfides fused and blown with air to burn out the sulfur content

A

Holloway Process

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13
Q

Recovering copper from its sulfide ores by leaching with cupric and sodium or calcium chloride solution and electrolyzing the resulting cuprous chloride liquor in cells with impure copper anodes

A

Hoepener Peocess

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14
Q

Catalysts used in the manufacture of sulfuric acid y chamber and contact processes are respectively

A

Oxides of nitrogen and V2O5 on a porous carrier

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15
Q

In contact process, SO3 is absorbed in 97% H2SO4 and not in water because

A

Water forms an acid mist which is difficult to absorb

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16
Q

Contact process

A

Yields acid of higher concentration than chamber process

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17
Q

20%Oleum means that in 100lb, there are 20lb of

A

So3 and 80% H2SO4

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18
Q

producer gas contains mainly of

A

CO, CO2, N2, H2

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19
Q

Oxygen is produced by fraction of air using

A

Both Lindes and Claudes process

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20
Q

Raw materials for Solvay process for manufacture of the soda ash are

A

Salt, limestone , ammonia and coke oven gas

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21
Q

Economics of SOLVAY PROCESS DEPENDS upon the efficiency of

A

Ammonia recovery and size of plant

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22
Q

Cement mainly contains

A

CaO, SiO2, Al2O3

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23
Q

Gypsum is

A

Calcium Sulfate

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24
Q

Glaubers salt is

A

Sodium sulfate decahydrate

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25
Q

Permanent hardness of water is due to the presence of calcium and magnesium

A

Sulfates and chlorides

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26
Q

Widely used method for conditioning of boiler feed water is

A

Hot-lime soda process

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27
Q

Hydrazine is largely used in

A

As rocket fuel

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28
Q

Trinitro-toluene is

A

Explosive

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29
Q

Oil is

A

A mixture of glycerides of fatty acids

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30
Q

Wax is

A

A mixture of fatty esters of polyhydric alcohols except glycerin.

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31
Q

Unsaturated oils compared to satd oils have

A

Lower melting point and higher reactivity to oxygen

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32
Q

Rancidity if oil can be reduced by

A

Hydrogenation

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33
Q

Solvent used for extraction of oil is

A

Methyl-Ethyl Ketone

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34
Q

Catalyst used in hydrogenation if oil is

A

Nickel

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35
Q

SO2 is bubbled through a hot sugar cane juice to

A

Act as an acidfying agent

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36
Q

Essential oils ate usually obtained using

A

Steam distillation

37
Q

Plasticizers are added to paints to

A

Give elasticity and prevent cracking of the film

38
Q

Which oil is preferred for paint maunfacture

A

Drying oil

39
Q

Function of thinner in paint is

A

Suspend pigments and dissolve film forming materials

40
Q

Varnish does not contain

A

Pigment

41
Q

Enamels

A

Give good glossy finish

42
Q

Metallic soap is

A

Aluminum or calcium salt of fatty acids

43
Q

Fat splitting catalyst is

A

ZnO

44
Q

Free alkali in toilet soap is

A

Less than in laundry soap

45
Q

Soap cannot be used in hard water beacause

A

They form insoluble calcium soaps which precipitate

46
Q

Builders are added in soap to

A

Boost cleaning power

47
Q

Bio degradable detergents

A

Can be readily oxidized

48
Q 
Which of the following is a detergent
a. Fatty alcohol
B. Alkyl benzene sulfonate
C. Fatty acids
D. Methyl Chloride
A

Alkyl benzene sulfonate

49
Q

Yellow glycerin is made into white, using

A

At activated carbon

50
Q

The only strength of stress grade lumber that can be precisely determined without breaking the piece is

A

Stiffness

51
Q

The chief difference between exterior grade plywood and interior grade plywood is

A

That different types of glue are used

52
Q

Warp, wane and checks are all factors to help determine the quality of

A

Stress grade lumber

53
Q

Brinell number is a measure of

A

Hardness

54
Q

A major classification group of stainless steels 6% to 22% nickel in addition to 16% to 26% chromium. This group differs from the other two major groupings in that its steels

A

Are non-magnetic

55
Q

The ultimate strength divided by the allowable stress is

A

Factor of safety

56
Q

If an engineering structure is to be designed against rupture of any of its members under steady load, the factor of safety is ratio based on working stress and

A

Ultimate strength

57
Q

The unit lateral deformation of a body under stress divided by unit longitudinal deformation is

A

Poissons ratio

58
Q

A thin wire is subject to a tensile stress. If the temperature is constant, the electric resistance of the stressed wire with respect to the electric resistance of the unstressed wire is

A

Increased

59
Q

The offset method is used to find a property of metals that do not have a well-defined stress-strain curve such as steel. This property is called

A

Yield point

60
Q

The stress in an elastic material is

A

Proportional to the displacement of the material acted in by the force

61
Q

Normally, the diameter of a rivet is 1/16 inches less than that of the hole in which it is to fit. This is to ensure easy entrance of a hot rivet. In boiler calculations, the rivet is assumed to

A

Fill the hole after driving

62
Q

The intermittent welds generally used to hold material in place temporarily are called

A

Double vee

63
Q

In the construction of a vinegar container tank, one of these is not recommended

A

Brass

64
Q

Bracket supports are most suitable for

A

Thick walled vertical vessels

65
Q

Skirt support is most suitable for

A

Tall horizontal vessel

66
Q

Circular cylindrical cans of volume Vo are to be manufactured with both ends closed. The ratio of the diameter and height that will require minimum amount of metal to make each can is

A

D/H =1.0

67
Q

The simplest mode of control which is characteristic of a two position control commonly utilized in a thermostat for controlling the temperature of heaters, air con, refrigerators, etc.

A

On-off control

68
Q

It is a control system in which the control action is independent of the output

A

Open-loop system

69
Q

An arrangement pf physical components connected or related in such a manner as to command, direct or regulate itself or another system.

A

Control system

70
Q

It is the actual response obtained from the control system. It may or may not be equal to the specified response by the input

A

Output

71
Q

A control system in which the control action is somehow dependent on the output.

A

Closed-loop control system

72
Q

A property of a closed loop system which permits the output o be compared with the input to the system so that the appropriate control action may be formed as some fraction of the output and the input

A

Feedback control system

73
Q

A frequency response measure of how well the system responds to variations in the input signal.

A

Bandwidth

74
Q

A signal defined at, or of interest at, only discrete instants of the variable (upon which it depends)

A

A digital signal

75
Q

A device that converts an analog or continuous signal into a discrete or digital signal

A

Analog-to digital (A/D) converter

76
Q

It is used to convert one signal or energy form into another

A

Transducer

77
Q

The part of the response which approaches zero as time approaches infinity

A

Steady state response

78
Q

The integral of a unit step function is also known as

A

Unit ramp function

79
Q

When the total number of variables in a process is greater than the number of independent equations that can be set up, the process is said to be

A

Under specified

80
Q

A control structure with two feedback controllers with the output of the primary controller changing the set point of the secondary controller whose output goes to the final controller.

A

Cascade controller

81
Q

A type of advanced control system that identifies continuously online the parameters of the process as they change and returns the controller appropriately.

A

Adaptive control

82
Q

A sensor usually made of a semiconductor that utilizes the effect of temperature on the resistance to current is called a

A

Thermistor

83
Q

A PI controller of a first order process is subjected to a unit step input . If the integral constant is fixed, increasing the proportional gain will

A

Decrease the overshoot

84
Q

A PID controlled process has a highly oscillating response. The process can be stabilized by

A

The decreasing proportional gain

85
Q

The integral of a DiRac function is

A

Step function

86
Q

In the control of pressure in a distillation column, there is no need to include

A

Derivative control

87
Q

A PI controller of a first order process is subjected to a init step input. If the integral constant is fixed, decreasing the proportional gain will

A

Increase overshoot

88
Q

A proportional controller exhibits a large offset. This offset can be eliminated without altering the proportional constant Kc by

A

Adding an integral control

Second Day (1 decks)

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