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

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

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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.

25) In a cylindrical pressure vessel under uniform internal pressure the

hoop stress is the same as the longitudinal stress.

hoop stress is twice the longitudinal stress

hoop stress is half the longitudinal stress

hoop stress is 1/4th of the longitudinal stress.

Answer is:

hoop stress is twice the longitudinal stress

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

S-Glass

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

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.

25) In a cylindrical pressure vessel under uniform internal pressure the

hoop stress is twice the longitudinal stress

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