Aircraft Design Mock Test 1

10%

Question 1 of 10

1. An Aircraft has following mission profiles with their respective mission weight fraction. There is 10% allowance of reserved fuel. Now, due to some reason loiter weight fraction has changed to 0.90. Now, with same amount of fuel as initial, will aircraft be able to perform loiter?

Mission	Weight fraction
Engine start-up	0.975
Taxi	0.98
Climb	0.970
Cruise	0.989
Loiter	0.96
Landing	0.975

Yes, loiter can be performed

12% less fuel will require

Will not depend on change

No, loiter cannot be performed

Question 1 of 10

Question 2 of 10

2. A symmetric airfoil is operating with flow velocity of 350m/s. The lift produced by the airfoil is 21 N at 0.008 rad AOA. If chord is c m then, what will be the pressure difference across the airfoil?

21c/2 N

21/c Pa

21 Pa

21c N

Question 2 of 10

Question 3 of 10

3. The empty weight fraction of a jet transport with fixed sweep is given by ______

1.02*(W_o^-0.06)*1.04

1.5*(W_o^-0.16)*1.0

1.02*(W_o^-0.06)*1.0

1.09*(W_o^-0.06)*1.12

Question 3 of 10

Question 4 of 10

4. Which of the following is a correct pair?

Testing major parts for fabrication - Initial Design

Testing major parts for fabrication - Conceptual Design

Testing major parts for fabrication - Preliminary Design

Testing major parts for fabrication - Detail Design

Question 4 of 10

Question 5 of 10

5. According to FAA, general aviation aircraft requires reserved fuel in terms of _____

no provision is mentioned in FAA

additional climb fuel

additional taxi-way fuel of three hours

additional cruise fuel of half hour

Question 5 of 10

Question 6 of 10

6. The main objective of the Preliminary stage is ______

first order sizing

fabrication

manufacture

lofting

Question 6 of 10

Question 7 of 10

7. Which of the following is true?

Empty weight fraction will be different for different type of aircrafts

F-35 aircraft has the highest possible empty weight fraction

Empty weight fraction is always same for each aircraft

Lowest possible empty weight fraction in practice is zero

Question 7 of 10

Question 8 of 10

8. The typical method for determining fuel weight used is called as _____

fuel interpolation

fuel fraction mining

fuel-fraction method

fuel-invert method

Question 8 of 10

Question 9 of 10

9. Which of the following is part of take-off weight estimation?

Lofting

Manufacturing part is first step

Drafting

Initial guess of take-off gross weight based on mission specifications

Question 9 of 10

Question 10 of 10

10. What is represented by ‘?’ in following diagram of an airfoil?

Thickness

Chord

Trailing edge

Leading edge

Question 10 of 10