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MCQs

Total Questions : 53 | Page 1 of 6 pages
Question 1. How much SiO₂ does Pyrex contain?
  1.    70.3%
  2.    73%
  3.    80.5%
  4.    91%
 Discuss Question
Answer: Option C. -> 80.5%
Answer: (c).80.5%
Question 2. How does the addition of magnesia and alumina affect soda lime glass?
  1.    Enhances mechanical strength
  2.    Reduces porosity
  3.    Increases softening temperature
  4.    Improves chemical durability
 Discuss Question
Answer: Option D. -> Improves chemical durability
Answer: (d).Improves chemical durability
Question 3. What is the melting temperature of fused quartz?
  1.    1112°C
  2.    1328°C
  3.    1525°C
  4.    1723°C
 Discuss Question
Answer: Option D. -> 1723°C
Answer: (d).1723°C
Question 4. What is the maximum usable temperature of soda like glass?
  1.    860 F
  2.    941 F
  3.    1084 F
  4.    1324 F
 Discuss Question
Answer: Option A. -> 860 F
Answer: (a).860 F
Question 5. What is the Kovar type of glass?
  1.    Low expansion type
  2.    Low electrical loss type
  3.    Sealing type
  4.    Ultraviolet transmitting type
 Discuss Question
Answer: Option C. -> Sealing type
Answer: (c).Sealing type
Question 6. Animal glue, epoxy, and polyurethane are examples of ________
  1.    Spray adhesives
  2.    Fabric adhesives
  3.    Super Glue
  4.    Wood glues
 Discuss Question
Answer: Option D. -> Wood glues
Answer: (d).Wood glues
Question 7. ________ is defined as the amount of time that any product can be used once it has been opened.
  1.    Aging
  2.    Permeation
  3.    Shelf life
  4.    Transmission rate
 Discuss Question
Answer: Option C. -> Shelf life
Answer: (c).Shelf life
Question 8. How is the shelf life of cyanoacrylate when unopened?
  1.    10 days
  2.    One month
  3.    One year
  4.    Lifetime
 Discuss Question
Answer: Option C. -> One year
Answer: (c).One year
Question 9. Which forming operation does the below figure represent?Which Forming Operation Does The Below Figure Represent?
  1.    Drawing
  2.    Pressing
  3.    Floating
  4.    Rolling
 Discuss Question
Answer: Option A. -> Drawing
Answer: (a).Drawing
Question 10. Which operation does the below figure represent?Which Operation Does The Below Figure Represent?
  1.    Drawing
  2.    Pressing
  3.    Blowing
  4.    Rolling
 Discuss Question
Answer: Option C. -> Blowing
Answer: (c).Blowing

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