UPSC 2006 › Science & Technology › Materials & Engineering

2 questions · 2006 · answers as per the UPSC key

Take test Free Study this topic: Science and Technology
All years of Materials & Engineering · Full UPSC 2006 paper
UPSC 2006 · Q19 · Science & Technology › Materials & Engineering · Save

Assertion (A): Cellulose is used in making shatter-proof glass.

Reason (R): Polysaccharides are not soluble in water.

(a) Both A and R are true and R is the correct explanation of A
(b) Both A and R are true but R is not a correct explanation of A
(c) A is true but R is false
(d) A is false but R is true
Show answer
Answer: (a) Both A and R are true and R is the correct explanation of A
UPSC 2006 · Q128 · Science & Technology › Materials & Engineering · Save

Which are the materials generally employed as solder in soldering operation in electronics?

(a) Iron and tin
(b) Lead and tin
(c) Aluminum and lead
(d) Aluminum and iron
Show answer
Answer: (b) Lead and tin