Engineering Sciences
GATE XE year:2025 PYQs
Build your understanding with focused practice from past exam papers.
Questions 131–140 of 175. Imported answers require independent review unless marked reviewed.
Question 131
Open questionXE-FNAT2 marksNeeds review
A rubber contains 70 wt% butadiene (molar mass = 54 g/mol), 20 wt% isoprene (molar mass = 68 g/mol), 5 wt% sulfur and 5 wt% carbon black. Assume that all the sulfur is present in crosslinks.
If each sulfide crosslink contains an average of two sulfur atoms, the percentage of possible crosslinks that are joined by vulcanization is ________%. (Round off to one decimal place)
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 132
Open questionXE-GMCQ1 markNeeds review
Which of the following contains the phytonutrient allicin?
Your answerChoose one option.
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 133
Open questionXE-GMCQ1 markNeeds review
Which mold is responsible for the characteristic blue marbling in blue-veined cheese?
Your answerChoose one option.
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 134
Open questionXE-GMCQ1 markNeeds review
Which genus of bacteria does NOT have cell wall?
Your answerChoose one option.
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 135
Open questionXE-GMCQ1 markNeeds review
Which of the following pigment does NOT have pro-vitamin A activity?
Your answerChoose one option.
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 136
Open questionXE-GMCQ1 markNeeds review
Identify the analysis that must be performed FIRST to judge ‘cleanliness’ of spice/herb powders.
Your answerChoose one option.
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 137
Open questionXE-GMCQ1 markNeeds review
If there is a delay in oil extraction after bran is separated from the brown rice, the quality of rice bran oil deteriorates. Identify the suitable CAUSE and EFFECT for the deterioration in oil quality.
Your answerChoose one option.
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 138
Open questionXE-GMSQ1 markNeeds review
Among the following, which is/are the process(es) that lead to generation of new fats from existing ones?
Your answerSelect all correct options. You can choose more than one.
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 139
Open questionXE-GNAT1 markNeeds review
The true density and bulk density of wheat grains are 1280 kg/m³ and 740 kg/m³, respectively. The porosity of the grains is _____. (rounded off to 2 decimal places)
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 140
Open questionXE-GNAT1 markNeeds review
Potato slices weighing 50 kg is dried from 60% moisture content (wet basis) to 5% moisture content (dry basis). The amount of dried potato slices obtained (in kg) is _____. (Answer in integer)
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