Miscellaneous Materials(Engineering > Engineering Materials ) Questions and answers for exam Preparation

Question 1. What is high-temperature coke used for?

Ironmaking
Production of gas
Fuel briquettes
Fishnets

Explanation:-

Answer: Option A. -> Ironmaking
Answer: (a).Ironmaking

Question 2. ________ is produced due to a chemical reaction between two or more substances.

Synthetic resin
Metallurgical coke
Fiber
Whisker

Explanation:-

Answer: Option A. -> Synthetic resin
Answer: (a).Synthetic resin

Question 3. Which of the following is not an application of synthetic resins?

Textile
Paint
Thermal insulation
Ion exchange

Explanation:-

Answer: Option C. -> Thermal insulation
Answer: (c).Thermal insulation

Question 4. What is Portland cement primarily composed of?

SiO₂
CaO
Fe₂O₃
MgO

Explanation:-

Answer: Option B. -> CaO
Answer: (b).CaO

Question 5. Neoprene was originally known as ________

Phenol formaldehyde
Coumarone-indene
Polychloroprene
Polyvinyl halides

Explanation:-

Answer: Option C. -> Polychloroprene
Answer: (c).Polychloroprene

Question 6. At what temperature is limestone heated to make Portland cement?

950°C
1250°C
1450°C
1750°C

Explanation:-

Answer: Option C. -> 1450°C
Answer: (c).1450°C

Question 7. The hardening process of Portland cement is known as _______

Calcination
Oxidation
Hydration
Deoxidization

Explanation:-

Answer: Option C. -> Hydration
Answer: (c).Hydration

Question 8. Which of the following cement are not used as a cement replacement?

Siliceous fly ash
Calcareous fly ash
Silica fume
Slag cement

Explanation:-

Answer: Option C. -> Silica fume
Answer: (c).Silica fume

Question 9. After burning of raw materials, Portland cement involves blending with ______

3% baryte
3% anhydrite
3% hanksite
3% gypsum

Explanation:-

Answer: Option D. -> 3% gypsum
Answer: (d).3% gypsum

Question 10. What is the specific gravity of Portland cement?

3.15
2.94
2.65
2.22

Explanation:-

Answer: Option A. -> 3.15
Answer: (a).3.15