GATE AE year:2018 PYQs & Answers — Page 3

Questions 21–30 of 65. Imported answers require independent review unless marked reviewed.

Topic practice 65 questionsPage 3 of 7

In an elliptic orbit around any planet, the location at which a spacecraft has the maximum angular velocity is

Your answerChoose one option.

apoapsis.

periapsis.

a point at +45° from periapsis.

a point at −90° from apoapsis.

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The pitching moment of a positively cambered NACA airfoil about its leading edge at zero-lift angle of attack is

Your answerChoose one option.

negative.

positive.

indeterminate.

zero.

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In a low-speed wind tunnel, the angular location(s) from the front stagnation point on a circular cylinder where the static pressure equals the free-stream static pressure, is

Your answerChoose one option.

± 38⁰

± 30⁰

± 60⁰

0⁰

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A thermocouple, mounted flush in an insulated flat surface in a supersonic laminar flow of air measures the

Your answerChoose one option.

static temperature.

temperature greater than static but less than total temperature.

total temperature.

temperature greater than total temperature.

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A shock wave is moving into still air in a shock tube. Which one of the following happens to the air?

Your answerChoose one option.

static temperature increases, total temperature remains constant.

static temperature increases, total temperature increases.

static temperature increases, total temperature decreases.

static pressure increases, total temperature remains constant.

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The highest limit load factor experienced by a civil transport aircraft is in the range

Your answerChoose one option.

0.0 – 2.0

2.0 – 5.0

5.0 – 8.0

8.0 – 10.0

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Determine the correctness or otherwise of the following statements, [a] and [r]:

[a] A closed-section box beam configuration is used in aircraft wings.

[r] Closed-section box beam configuration is capable of resisting torsional loads.

Your answerChoose one option.

Both [a] and [r] are true and [r] is the correct reason for [a].

Both [a] and [r] are true but [r] is not the correct reason for [a].

Both [a] and [r] are false.

[a] is true but [r] is false.

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The first law of thermodynamics is also known as conservation of

Your answerChoose one option.

mass.

momentum.

energy.

species.

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In an ideal gas turbine cycle, the expansion in a turbine is represented by

Your answerChoose one option.

an isenthalpic process.

an isentropic process.

an isobaric process.

an isochoric process.

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The determinant of the matrix

is ______ (accurate to one decimal place).

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GATE AE year:2018 PYQs

Question 11

Question 12

Question 13

Question 14

Question 15

Question 16

Question 17

Question 18

Question 19

Question 20