Aerospace Engineering
GATE AE format:mcq PYQs
Build your understanding with focused practice from past exam papers.
Questions 61–70 of 326. Imported answers require independent review unless marked reviewed.
Question 32
Open questionAEMCQ1 markNeeds review
An ideal two-stage rocket has identical specific impulse and structural coefficient for its two stages. For an optimized rocket, the two stages have identical payload ratio as well. The payload is 2 tons and the initial mass of the rocket is 200 tons. The mass of the second stage of the rocket (including the final payload mass) is ____ tons.
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A gaseous fuel mixture comprising 3 moles of methane and 2 moles of ammonia is combusted in X moles of pure oxygen in stoichiometric amount. Assuming complete combustion, with only CO
, H
O and N
in the product gases, the value of X is ____. The displayed reaction is: 3 CH
+ 2 NH
+ X O
→ Products (CO
, H
O, N
).Your answerChoose one option.
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Open questionAEMCQ2 marksNeeds review
A lifting surface has a spanwise circulation distribution of
(where
) over its span
, and
is the spanwise coordinate. Furthermore, the downwash varies along the span as
, where
is the free stream velocity. Which one of the following options represents total lift (
) and induced drag (
)?Your answerChoose one option.
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Open questionAEMCQ2 marksNeeds review
A 1 m long rod is to be designed to support an axial tensile load
(
weight of the rod). The material for the rod is to be chosen from one of the four provided in the table. Using strength-based failure criterion for design, which material results in the lowest weight of the rod?Properties | Material α | Material β | Material γ | Material δ |
|---|---|---|---|---|
Density (kg/m ) | 2700 | 450 | 780 | 900 |
Young’s modulus (GPa) | 70 | 115 | 200 | 130 |
Yield Strength (MPa) | 270 | 900 | 520 | 540 |
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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 1
Open questionGAMCQ1 markNeeds review
If ‘→’ denotes increasing order of intensity, then the meaning of the words [dry → arid → parched] is analogous to [diet → fast → ______ ]. Which one of the given options is appropriate to fill the blank?
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If two distinct non-zero real variables
and
are such that
is proportional to
then the value of
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Open questionGAMCQ1 markNeeds review
Consider the following sample of numbers:
9, 18, 11, 14, 15, 17, 10, 69, 11, 13
The median of the sample is
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The number of coins of ₹1, ₹5, and ₹10 denominations that a person has are in the ratio 5:3:13. Of the total amount, the percentage of money in ₹5 coins is
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For positive non-zero real variables
and
, if
, then, the value of
isYour answerChoose one option.
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Open questionGAMCQ2 marksNeeds review
In the given text, the blanks are numbered (i)–(iv). Select the best match for all the blanks.
Steve was advised to keep his head (i) ______ before heading (ii) ______ to bat; for, while he had a head (iii) ______ batting, he could only do so with a cool head (iv) ______ his shoulders.
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