20) An isotropic material is one with

different properties in all directions.

same properties in all directions

different properties at different locations

same properties in three directions

Answer is:

same properties in all directions

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

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21) Specific strength is given by

Square root of Young's modulus / density.

Strength / density.

Young's modulus / density

Square root of strength / density.

Answer is:

Strength / density.

22) Amongst the choices given below, high strength applications in the aerospace industry use

Kelvar 49

Kelvar 29

E-Glass

S-Glass

Answer is:

S-Glass

23) A general working definition of stress can be given as

Final length divided by the initial length

Load divided by Area

The change in length divided by the final length.

The change in length divided by the initial length.

Answer is:

Load divided by Area

24) The longitudinal strength of a lamina is significantly dependent on

(a) fiber direction Strength

(b) matrix strength

(A) and (C ) both.

Answer is:

(A) and (C ) both.

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

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20) An isotropic material is one with

same properties in all directions

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

21) Specific strength is given by

Strength / density.

22) Amongst the choices given below, high strength applications in the aerospace industry use

S-Glass

23) A general working definition of stress can be given as

Load divided by Area

24) The longitudinal strength of a lamina is significantly dependent on

(A) and (C ) both.

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