Entc 281 Study guides, Class notes & Summaries
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ENTC 281 test 2 question n answers graded A+ 2023
- Exam (elaborations) • 23 pages • 2023
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ENTC 281 test 2A highly toxic, colorless, odorless gas is named - correct answer CO Carbon monoxide. 
 
Combustible liquids are those with flash points at or above - correct answer 38C 
 
Name three natural materials that may be more toxic than plastics. - correct answer Cobalt, nickel, silica. 
 Silk, wood, wool. 
 
Name three broad categories of hazards in 
working with industrial materials. - correct answer Biomechanical Hazards 
Chemical Hazards 
Physical Hazards 
 
The overheating of ? pl...
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ENTC 281 test 2 Question and answers already passed 2023/2024
- Exam (elaborations) • 23 pages • 2023
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ENTC 281 test 2 Question and answers already passed 2023/2024 
A highly toxic, colorless, odorless gas is named - correct answer CO Carbon monoxide. 
 
Combustible liquids are those with flash points at or above - correct answer 38C 
 
Name three natural materials that may be more toxic than plastics. - correct answer Cobalt, nickel, silica. 
 Silk, wood, wool. 
 
Name three broad categories of hazards in 
working with i
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ENTC 281 Exam 2 2023 with 100% correct answers
- Exam (elaborations) • 20 pages • 2023
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A highly toxic, colorless, odorless gas is named ______. - correct answer Carbon Monoxide 
 
Combustible liquids are those with flash points at or above ________ degree celsius. - correct answer 38 
 
Name three natural materials that may be more toxic than plastics. - correct answer Silk, wood and wool 
 
Name three broad categories of hazards in working with industrial materials. - correct answer Physical, biomedical and chemical 
 
The overheating of ______ plastics may cause polymer-fume fev...
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ENTC 281 exam 2 questions n answers 2023 already passed
- Exam (elaborations) • 16 pages • 2023
- Available in package deal
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ENTC 281 exam 2additives - correct answer use to improve of extend the properties of plastics 
 
antistatic agents - correct answer static charges may be dissipated by the addition of ? 
 
four types of colorants - correct answer dyes, organic pigments, inorganic pigments, special-effects pigments 
 
dyes - correct answer which colorant dissolves into the plastics material? 
 
organic dyes - correct answer poor thermal and light stability is a major disadvantage of this 
 
flexibility - correct ...
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ENTC 281 exam 2023 with 100% correct answers
- Exam (elaborations) • 16 pages • 2023
- Available in package deal
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- $16.49
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Why was machine manufacture of horn combs often unsuccessful? - correct answer -Pieces of horn were not flat or uniform in thickness. 
 
Why weren't daguerreotype cases made from horn or horn powders? - correct answer -Horn does not flow easily and consequently it does not pick up fine details in a mold 
 
Casein comes from - correct answer -Milk curd 
 
Moderately nitrated nitrocellulose is called - correct answer -Pyroxylin 
 
What is the difference between collodion and 
moderately nitrated ...
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ENTC 281 Question and answers already passed 2023/2024
- Exam (elaborations) • 16 pages • 2023
- Available in package deal
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- $13.99
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ENTC 281 Question and answers already passed 2023/2024 
 
Why was machine manufacture of horn combs often unsuccessful? - correct answer Pieces of horn were not flat or uniform in thickness. 
 
Why weren't daguerreotype cases made from horn or horn powders? - correct answer Horn does not flow easily and consequently it does not pick up fine details in a mold 
 
Casein comes from - correct answer Milk curd 
 
Moderately nitrated
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ENTC 281 exam 2 2023 with 100% correct answers
- Exam (elaborations) • 16 pages • 2023
- Available in package deal
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- $15.49
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additives - correct answer -use to improve of extend the properties of plastics 
 
antistatic agents - correct answer -static charges may be dissipated by the addition of ? 
 
four types of colorants - correct answer -dyes, organic pigments, inorganic pigments, special-effects pigments 
 
dyes - correct answer -which colorant dissolves into the plastics material? 
 
organic dyes - correct answer -poor thermal and light stability is a major disadvantage of this 
 
flexibility - correct answer -pl...
-
ENTC 281 exam 2 Question and answers 2023/2024 verified to pass
- Exam (elaborations) • 16 pages • 2023
- Available in package deal
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- $13.49
- + learn more
ENTC 281 exam 2 Question and answers 2023/2024 verified to pass 
additives - correct answer use to improve of extend the properties of plastics 
 
antistatic agents - correct answer static charges may be dissipated by the addition of ? 
 
four types of colorants - correct answer dyes, organic pigments, inorganic pigments, special-effects pigments 
 
dyes - correct answer which colorant dissolves into the plastics material?
-
ENTC 281 Exam 2 2023 with 100% correct answers
- Exam (elaborations) • 20 pages • 2023
- Available in package deal
-
- $17.49
- + learn more
A highly toxic, colorless, odorless gas is named ______. - correct answer Carbon Monoxide 
 
Combustible liquids are those with flash points at or above ________ degree celsius. - correct answer 38 
 
Name three natural materials that may be more toxic than plastics. - correct answer Silk, wood and wool 
 
Name three broad categories of hazards in working with industrial materials. - correct answer Physical, biomedical and chemical 
 
The overheating of ______ plastics may cause polymer-fume fev...
-
ENTC 281 question n answers graded A+ 2023
- Exam (elaborations) • 16 pages • 2023
- Available in package deal
-
- $19.99
- + learn more
ENTC 281Why was machine manufacture of horn combs often unsuccessful? - correct answer Pieces of horn were not flat or uniform in thickness. 
 
Why weren't daguerreotype cases made from horn or horn powders? - correct answer Horn does not flow easily and consequently it does not pick up fine details in a mold 
 
Casein comes from - correct answer Milk curd 
 
Moderately nitrated nitrocellulose is called - correct answer Pyroxylin 
 
What is the difference between collodion and 
moderately nitra...
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