GATE XE 2022 Paper 1 — page 43

Questions 127–129 of 175. Imported answers require review unless explicitly marked reviewed.

For a polymer sample with a viscosity of

poise, if the apparent plateau modulus of

dyne cm

drops to zero above a certain temperature, the relaxation time of the polymer is ________ days (rounded off to one decimal place).

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The thermal conductivity values of glass fiber and epoxy resin are 1.05 W m

and 0.25 W m

, respectively. The thermal conductivity of a glass fiber reinforced epoxy composite with a fiber content of 60% by volume along the fiber direction is ________ W m

(rounded off to two decimal places).

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The tensile modulus of a thermosetting polyester resin and glass fiber are 3 GPa and 80 GPa, respectively. If a tensile stress of 110 MPa is applied along the fiber direction on a continuous uniaxially aligned glass fiber reinforced thermosetting polyester composite with a fiber content of 60% by volume, the resulting strain will be ________ ×

(rounded off to one decimal place).

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2022 · Paper 1

Question 127

Question 128

Question 129