PD and Process Control

Question 1

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

Answer 1

stiffness

Question 2

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

Answer 2

that different types of glue are used

Question 3

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

Answer 3

stress grade lumber

Question 4

The Brinell Number of a material measures

Answer 4

hardness

Question 5

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

Answer 5

are non-magnetic

Question 6

The ultimate strength divided by the allowable stress is

Answer 6

factor of safety

Question 7

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

Answer 7

Ultimate strength

Question 7

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

Answer 7

Ultimate strength

Question 8

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

Answer 8

Yield point

Question 9

In boiler calculations, the rivet is assumed to

Answer 9

Fill the hole after driving

Question 10

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

Answer 10

double vee

Question 11

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

A. aluminum
B. Stainless steel
C. Brass
D. Monel

Answer 11

Brass

Question 12

Bracket supports are most suitable for

Answer 12

Thick walled vertical vessels

Question 13

Skirt support is most suitable for

Answer 13

Tall horizontal vessel

Question 14

Design based on conditions giving least cost per unit time and max profit per unit production

Answer 14

Optimum economic design

Question 15

A flow diagram, indicating the flow of materials, unit operations involved, equipment necessary and special information on operating temp and pressure is

Answer 15

Qualitative flow diagram

Question 16

In a plant design implementation, soil testing is done to determine

Answer 16

load bearing capacity

Question 17

This involves all engineering aspects in the development of either a new, modified, or expanded industrial plant

Answer 17

plant design

Question 18

A chemical engineering specializing in the economic aspects of design

Answer 18

cost engineer

Question 19

Actual design of the equipment and facilities necessary for carrying out the process

Answer 19

process design

Question 20

The final step before developing construction plans for the plant and includes complete specifications for all components of the plant and accurate costs based on quoted prices

Answer 20

firm process design

Question 21

A thorough systematic analysis of all factors that affect the possibility of success of a proposed undertaking usually with the market, technical, financial, socio-economic and management aspects

Answer 21

project feasibility study

Question 22

Discusses the nature of the product line, the technology necessary for production, its availability, the proper mix of production resources and the optimum production volume

Answer 22

Technical feasibility

Question 23

Discusses the nature of the unsatisfied demand which the project seeks to meet, its growth and the manner in which it is to be met

Answer 23

market feasibility

Question 24

Simplest mode of control characterized by a two-position control commonly utilized in a thermostat for controlling the temperature of heaters, air conditioners, ref, etc.

Answer 24

On-off control

Question 25

Control system in which the control action is independent of the output

Answer 25

Open loop system

Question 26

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

Answer 26

Control system

Question 27

Control system in which the control action is somehow dependent on the output

Answer 27

Closed loop system

Question 28

Property of a closed-loop system which permits the output to be compared with the input to the system so that the appropriate control action may be formed

Answer 28

Feedback control system

Question 29

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

Answer 29

bandwidth

Question 30

A signal defined at, or of interest at, only discrete instants of the variable

Answer 30

Digital signal

Question 31

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

Answer 31

analog to digital converter

Question 32

Convert one signal or energy form into another

Answer 32

Transducer

Question 33

Part of the deviation of the response which approaches zero as time approaches infinity

Answer 33

steady state response

Question 34

Integral of a unit step function

Answer 34

ramp function

Question 35

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

Answer 35

thermistor

Question 36

Integral of a Dirac function is a

Answer 36

Step function

Question 37

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