Questions 851–860 of 1772. Imported answers require independent review unless marked reviewed.

Topic practice 1772 questionsPage 86 of 178

Question 129

Open question
XE-FNAT2 marksNeeds review
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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Question 130

Open question
XE-FNAT2 marksNeeds review
The amount of low molecular weight plasticizer with a

of -60 °C that must be added to nylon 6 to reduce its

from 50 °C to 30 °C is ________ % (round off to nearest integer).

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Question 131

Open question
XE-FNAT2 marksNeeds review
The enthalpy of fusion for a polymer is found to decrease from 135.6 J g

to 120 J g

after five years of use. If the enthalpy of fusion of the same polymer with 100% crystallinity is 290 J g

, then the loss in crystallinity after five years is ______ % (rounded off to one decimal place).

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Question 132

Open question
XE-GMCQ1 markNeeds review
Which among the given options truly depict the lines 1 and 2 in the figure below with respect to the effect of heat processing on food?
Diagram for Engineering Sciences question 132

Your answerChoose one option.

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Question 133

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XE-GMCQ1 markNeeds review
Homogenization of milk leads to disintegration of fat globules by
Your answerChoose one option.

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Question 134

Open question
XE-GMCQ1 markNeeds review
The lowest water activity (a

) supporting the growth of Staphylococcus aureus in food under aerobic condition is
Your answerChoose one option.

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Question 135

Open question
XE-GMSQ1 markNeeds review
Cultures used in industrial production of yogurt are
Your answerSelect all correct options. You can choose more than one.

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Question 136

Open question
XE-GMSQ1 markNeeds review
In a dairy plant, spray drying technology is used to produce whey powder. The rate of spray drying depends on
Your answerSelect all correct options. You can choose more than one.

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Question 137

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XE-GMSQ1 markNeeds review
The parboiling of paddy results into
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Question 138

Open question
XE-GNAT1 markNeeds review
One hundred kg paddy is dried from 18% wet basis to 13% wet basis moisture content. The amount of water removed (in kg) from the paddy is ________ (round off to one decimal place).

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