26) Post curing of composite is done to

increase its modulus

relieve the thermal stress

increase its glass transition temperature

increase its strength

Answer is:

increase its glass transition temperature

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

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27) Tooling for composite material should have

Higher Co-efficient of thermal expansion

Lower Co-efficient of moisture expansion

Higher Co-efficient of moisture expansion

Lower Co-efficient of thermal expansion

Answer is:

Lower Co-efficient of thermal expansion

28) What is the radiation type used in radiography non-destructive test?

X-rays

Radio waves

Microwaves

None of the above

Answer is:

X-rays

29) Milling tool used for getting a good finish on composite is

High Speed Steel tool

High Carbon Steel tool

Low Carbon Steel tool

Carbide Tipped tool

Answer is:

Carbide Tipped tool

30) If at any point the properties are a function of orientation (i.e, Properties are different in different directions), they are called

isotropic

orthotropic

Homogeneous

Anisotropic

Answer is:

Anisotropic

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

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26) Post curing of composite is done to

increase its glass transition temperature

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

27) Tooling for composite material should have

Lower Co-efficient of thermal expansion

28) What is the radiation type used in radiography non-destructive test?

X-rays

29) Milling tool used for getting a good finish on composite is

Carbide Tipped tool

30) If at any point the properties are a function of orientation (i.e, Properties are different in different directions), they are called

Anisotropic

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