60) Most commercial elastomers are filled with _____ to improve their strength or abrasion resistance while maintaining their extensibility.

carbon-black or silica

Carbon

Boron

Alumina

Answer is:

carbon-black or silica

ISRO Technician-B Fiber Reinforced Plastics Question Paper - 2019 (Set - 1) with Answer Key

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61) When the fibers are laid parallel to one-another and saturated or impregnated with resin, a _____ is formed.

Prepreg

Fabric

Pultruded rod

Gas bottle

Answer is:

Prepreg

62) Which are produced from aromatic polyamides by dry-jet wet spinning process.

Carbon fibre

Glass fibre

Boron fibre

Aramid fibre (Kevlar)

Answer is:

Aramid fibre (Kevlar)

63) Service temperature of Polyimides are about

250-300 degree centigrade

50-100 degree centigrade

800-1000 degree centigrade

20-35 degree centigrade

Answer is:

250-300 degree centigrade

64) In a 6-harness satin weave fabric

Each pick passes over six and under one end

Each end and pick passes over two crossing threads

Each pick passes over five and under one end

Each pick passes over seven and under one end

Answer is:

Each pick passes over five and under one end

ISRO Technician-B Fiber Reinforced Plastics Question Paper - 2019 (Set - 1) with Answer Key

For more MCQ's Click Here

60) Most commercial elastomers are filled with _____ to improve their strength or abrasion resistance while maintaining their extensibility.

carbon-black or silica

ISRO Technician-B Fiber Reinforced Plastics Question Paper - 2019 (Set - 1) with Answer Key

Related ISRO Technician-B Fiber Reinforced Plastics Question Paper - 2019 (Set - 1) with Answer Key

61) When the fibers are laid parallel to one-another and saturated or impregnated with resin, a _____ is formed.

Prepreg

62) Which are produced from aromatic polyamides by dry-jet wet spinning process.

Aramid fibre (Kevlar)

63) Service temperature of Polyimides are about

250-300 degree centigrade

64) In a 6-harness satin weave fabric

Each pick passes over five and under one end

ISRO Technician-B Fiber Reinforced Plastics Question Paper - 2019 (Set - 1) with Answer Key