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6 Month 5 > Tpc 106 Non-metals In The Plant > Flashcards

Tpc 106 Non-metals In The Plant Flashcards

1
Q

A liquid has a _______ shape and a _____ volume

Changeable; changeable
Changeable; Fixed
Fixed; changeable
Fixed; fixed

A

Changeable; fixed

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2
Q

Kilograms per cubic meter (kg/m3) is the unit of metric measurement for

Density
Mass
Specific gravity
Weight

A

Density

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3
Q

The temperature of a liquid decreases as it

Boils
Condenses
Evaporates
Freezes

A

Evaporates

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4
Q

During laminar flow, the fluid in a pipe

Causes excessive wear
Moves in parallel layers
Slows down
Speeds up

A

Moves in parallel layers

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5
Q

The solubility of a gas in a liquid is usually ______ at the liquids boiling point

Highest
Lowest
Measured
Impossible to measure

A

Lowest

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6
Q

Plastic that can be reheated and reshaped many times are called

Polymers
Thermoplastics
Thermosets
Thixotropic formulations

A

Thermoplastics

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7
Q

What method of molding produces intricate parts at high speed and low cost?

Blow molding
Injection molding
Thermoforming
Transfer molding

A

Injection molding 

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8
Q

In filament winding, glass fiber is wound around a form, called a(n)

Insert
Mandrel
Patch
Plate

A

Mandrel

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9
Q

When drilling most plastics, you should reduce the feed rate just before the drill point ______ the work

Enters
Penetrates the far side of
Reaches the middle of
Reacts from

A

Penetrates the far side of

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10
Q

When preparing an area of corroded surface to be patched, which side of the material should be cleaned?

Inside
Outside
Both sides
Neither side

A

Both sides 

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11
Q

If stretched to twice it’s normal length and released, an elastomer will

Break
Remain greatly deformed
Remain somewhat deformed
Return to its original shape

A

Return to its original shape

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12
Q

Class T rubber compounds resist damage from

Extreme pressure
Extreme temperature
Ozone
Petroleum products

A

Extreme temperature

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13
Q

Most rubber compounds are

Flammable
Good conductors of electricity
Permeable
Resistant to Ozone

A

Flammable

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14
Q

In vulcanization, the more sulfur, that is added, the _______ the rubber becomes

Harder
Less usable
More unstable
Softer

A

Harder

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15
Q

What characteristic is most important in the rubber coating of wire in extension cords?

Flexibility
Heat resistance
Permanent set
Thickness

A

Flexibility

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16
Q

Cutting a log lengthwise through or near its centerline produces a ________ cut

Cross
radial
Tangential
Traverse

A

Radial

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17
Q

The actual length of a board is stated in ______ feet. Lumber is sold in ______ feet

Board; running
Bored; square
Running; board
Running; square

A

Running; board

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18
Q

The best Veneer in softwood plywood is graded

A
B
C
N

A

N

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19
Q

What with many knots should not be used for structural support because it is

Difficult to cut
Too expensive
Unsightly
Weak

A

Weak

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20
Q

How deep should the pilot hole for a screw be drilled in softwood?

1/8 in.
Half the screw length
The full screw length
Clear through the word

A

Half the screw length

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21
Q

Air-entrained concrete is commonly used for

Interior structures
Loadbearing structures
Structures exposed to severe cold
Structures that must set quickly

A

Structures exposed to severe cold

22
Q

Cinder block is commonly used for construction

Above ground
Below ground
Of backing tiers for walls
Of fire walls

A

Above ground

23
Q

Type N mortar is a ______-strength mortar used for _______-bearing clay tile construction.

High; load
Medium; load
Low; load
Low; nonload

A

Medium; load

24
Q

Which type of plaster sets very quickly and should be used only for small patching jobs?

Cement plaster
Hard finish plaster
Plaster of Paris
Special plaster

A

Plaster of Paris

25
23 7/8” x 26 7/8” 24” x 27” 27” x 30” 30” x 33”
23 7/8” x 26 7/8”
26
Convection heat is the Flow of heat from molecule to molecule Heat that comes directly from a fire Transfer of heat by fluids Transmission of heat through space by invisible waves
Transfer of heat by fluids
27
What type of insulation can withstand both high and low temperatures, is chemically inert and may use be used in ovens and freezers? Asbestos Cellular rubber Cork Mineral wool
Mineral wool
28
You can use lead sheet or plastic film for Absorbing sound at high frequencies Protection in x-ray machines Reducing vibration of pipes or ducts Reflecting sound
Reducing vibration of pipes or ducts
29
An asphalt coating serves as a(n)_______ on the outside of underground walls Electrical insulator Insulation adhesive Moisture barrier Vibration isolator
Moisture barrier
30
Which of the following materials has the highest dielectric strength? Air Mica Porcelain Rubber
Mica
31
The part of a paint that binds solid particles into a uniform film is called the Pigment Primer Substrate Vehicle
Vehicle
32
The single most important factor for success in painting a structure is Method of application Paint quality Primer additives Surface preparation
Surface preparation
33
In sandblasting, the intensity that produces the best anchor pattern for paint is called______ blasting Commercial Feather Sand brushoff White
White 
34
The color specified by a ANSI to indicate first-aid stations and safety equipment in a plant is Blue Green Orange Yellow
Green
35
The process of melting zinc with an oxyacetylene flame and spraying it onto a metal surface for protection is called Electrogalvanizing Electrostatic air spraying Metalizing Priming
Metalizing
36
Which pH value below indicates an acid solution? 5 7 9 11
5
37
The solvent, _______, should not be used for cleaning because it’s highly flammable and irritates the skin Gasoline Kerosene Perchlor Tricolor
Gasoline
38
You should use ________ acid to dissolve hard water deposits in heating and cooling systems Muriatic Nitric Phosphoric Sulfamic
Sulfamic
39
Chemicals used to prevent the formation of scale in piping systems and boilers are called Glycols Phosphates Polyelectrolytes Sequestrants
Sequestrants
40
Fires involving electrical equipment and wiring are designated Class A Class B Class C Clase D
Class C 
41
The completion of all chemical and physical reactions that affect adhesive bonding is called  Assembly time Curing Drying Working time
Curing
42
An adhesive made of water soluble gums, and starches is called Casein glue Hot melt Mucilage Resin glue
Mucilage
43
The strongest adhesive joint is the____ joint Bevel lap Butt Lap Scarf
Bevel lap
44
Good electrical insulation is provided by_______tape Double coated Fibrous paper Pressure sensitive Rubber
Rubber
45
Tapes coated with fluorescent adhesive are used where service conditions include Excess moisture High temperatures Low temperatures Slippery surfaces, 
High temperatures
46
Activated carbon is widely used for Absorbing impurities Absorbing sound Insulating electrical equipment Protecting surfaces from corrosion
Absorbing impurities
47
At room temperature carbon is chemically Active Reactive Inert Volatile
Inert
48
Excessive noise in electric hand tools often indicates I need for lubrication Carbon brush problems Lose bits or blades Worn gears
Carbon brush problems
49
Nonporous carbon seals are used in applications where Controlled leakage is desirable Even a tiny leak would be harmful Liquid pressure do not exceed 35 psi Liquid pressures do not exceed 50 psi
Even a tiny leak would be harmful 
50
In shaft seals that have two individual packing rings the joints should be positioned._______• apart 90 120 180 240
180

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