Explore topic-wise MCQs in Aircraft Performance.

This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Aircraft Performance knowledge and support exam preparation. Choose a topic below to get started.

1.

What is the value that maintains minimum power speed of the aircraft?

A. u/ ( sqrt[4]{3} )
B. u/ ( sqrt[3]{3} )
C. u<sup>2</sup>/ ( sqrt[4]{3} )
D. u<sup>2</sup>/ ( sqrt[3]{3} )
Answer» B. u/ ( sqrt[3]{3} )
Discussion
2.

What is the benefit of flying at minimum power speed?

A. Increases gliding flight time
B. Decreases gliding flight time
C. Does not change the gliding flight time
D. Decreases the aircraft performance
Answer» B. Decreases gliding flight time
Discussion
3.

The minimum sink rate is attained by flying at a relative airspeed of u/ ( sqrt[4]{3} ).

A. True
B. False
Answer» B. False
Discussion
4.

What is the correct formula for dimensionless rate of climb?

A. = ( frac{dH/dt}{V_{md}} )
B. v= ( frac{V_{md}}{dH/dt} )
C. v= ( frac{-V_{md}}{dH/dt} )
D. v= ( frac{-dH/dt}{V_{md}} )
Answer» B. v= ( frac{V_{md}}{dH/dt} )
Discussion
5.

Which of the following is the correct rate of climb equation?

A. u- ( frac{1}{2} )[u<sup>3</sup>+u<sup>-1</sup>]=E<sub>max</sub>v
B. - ( frac{1}{2} )[u<sup>2</sup>+u<sup>-2</sup>]=E<sub>max</sub>sin <sub>2</sub>
C. + ( frac{1}{2} )[u<sup>2</sup>+u<sup>-2</sup>]=E<sub>max</sub>sin <sub>2</sub>
D. u- ( frac{1}{2} )[u<sup>3</sup>+u<sup>-1</sup>]=E<sub>max</sub>v
Answer» E.
Discussion
6.

At what airspeed does maximum gradient of climb occurs?

A. 1
B. 2
C. 3
D. 4
Answer» B. 2
Discussion
7.

Which of the following is the correct climb gradient equation?

A. - ( frac{1}{2} )[u<sup>2</sup>+u<sup>-2</sup>]=E<sub>max</sub>sin <sub>2</sub>
B. + ( frac{1}{2} )[u<sup>2</sup>+u<sup>-2</sup>]=E<sub>max</sub>sin <sub>2</sub>
C. + ( frac{1}{2} )[u<sup>2</sup>+u<sup>-2</sup>]=E<sub>max</sub>
D. - ( frac{1}{2} )[u<sup>2</sup>+u<sup>-2</sup>]=E<sub>max</sub>
Answer» B. + ( frac{1}{2} )[u<sup>2</sup>+u<sup>-2</sup>]=E<sub>max</sub>sin <sub>2</sub>
Discussion
8.

In which of the following the maximum rate of climb occurs?

A. It occurs when difference in thrust power and drag power is minimum
B. It occurs when difference in thrust power and drag power is maximum
C. It occurs when difference in thrust power is minimum
D. It occurs when difference in drag power is minimum
Answer» C. It occurs when difference in thrust power is minimum
Discussion
9.

What is the relation between thrust power and true airspeed?

A. Thrust power increases with increase in true airspeed
B. Thrust power decreases with increase in true airspeed
C. Thrust power increases with decrease in true airspeed
D. Thrust power is independent of true airspeed
Answer» B. Thrust power decreases with increase in true airspeed
Discussion
10.

The best gradient of climb is predicted to be at an airspeed greater than minimum drag speed.

A. True
B. False
Answer» B. False
Discussion
11.

The best rate of climb occurs when the excess thrust power is minimum than drag power.

A. True
B. False
Answer» C.
Discussion
12.

The best gradient of climb is attained at the time of maximum drag speed of the aircraft.

A. True
B. False
Answer» C.
Discussion
13.

What should be the value of thrust- to-weight ratio for a normal take-off so that the acceleration associated with the rate of climb is neglected?

A. 0.1
B. 0.2
C. 0.3
D. 0.4
Answer» D. 0.4
Discussion
14.

Which of the following is the correct lift balancing equation for thrust producing engines?

A. L=Wcos <sub>2</sub>
B. L=Wsin <sub>2</sub>
C. L= ( frac{cos gamma _2}{W} )
D. L= ( frac{sin gamma_2}{W} )
Answer» B. L=Wsin <sub>2</sub>
Discussion
15.

Which of the following is the correct thrust balancing equation for thrust producing engines?

A. F<sub>N</sub>+D=Wsin <sub>2</sub>+mV
B. F<sub>N</sub>-D=Wsin <sub>2</sub>+mV
C. F<sub>N</sub>-D=Wsin <sub>2</sub>-mV
D. F<sub>N</sub>+D=Wsin <sub>2</sub>-mV
Answer» C. F<sub>N</sub>-D=Wsin <sub>2</sub>-mV
Discussion