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

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

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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

31) Pot life' of a resin matrix means

Duration of time resin mix can be used for processing after mixing

Duration of time resin mix can be stored under prescribed conditions

Duration of time required for curing

Duration of time required for gelation

Answer is:

Duration of time resin mix can be used for processing after mixing

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

Lower Co-efficient of thermal expansion

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

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

31) Pot life' of a resin matrix means

Duration of time resin mix can be used for processing after mixing

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