ASTB Practice Test

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1/10 Questions

How many kilometers make one nautical mile?
- 2.345 kilometers
- 1.852 kilometers
- 2.156 kilometers
- 2.711 kilometers

About This Quiz

The Aviation Standard Test Battery is an important assessment performed by the United States Navy to select the best brains that will join the service. The performance of an individual in this examination determines if he/she meets the standards for training. This test is in different formats and assesses applicants mathematical, and comprehension abilities as well as aviation knowledge. See more

2.

What enables an aircraft to escape the force of gravity?
- Rudder
- Static lift
- Hot air balloons
- Rotors
Correct Answer

A. Static lift

Explanation

Static lift enables an aircraft to escape the force of gravity. Static lift is the upward force generated by the shape and design of the aircraft's wings, which creates a pressure difference between the upper and lower surfaces of the wings. This pressure difference creates lift, counteracting the force of gravity and allowing the aircraft to stay airborne.

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3.

Which of these is not a criterion for classifying an aircraft?
- Usage
- Brand
- Aircraft propulsion
- Lift type
Correct Answer

A. Usage

Explanation

The criteria for classifying an aircraft include brand, aircraft propulsion, and lift type. However, the usage of an aircraft is not a criterion for classification. Classification is typically based on factors such as the purpose of the aircraft, its design, and its capabilities.

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4.

What is the probability of 2019 being a leap year?
- 0.25
- 0.5
- 1
- 0.75
Correct Answer

A. 0.25

Explanation

The probability of 2019 being a leap year is 0.25 because a leap year occurs every four years, and 2019 is not divisible by 4. Therefore, it is not a leap year.

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5.

What part of an aircraft comprises the main load-bearing equipment?
- Structure of the aircraft
- Propulsion system
- Airlift system
- Avionics system
Correct Answer

A. Structure of the aircraft

Explanation

The main load-bearing equipment of an aircraft is the structure of the aircraft. This includes the fuselage, wings, and other components that support the weight of the aircraft and distribute the forces experienced during flight. The structure is designed to be strong and durable, allowing the aircraft to withstand the stresses and loads it encounters during operation. Without a strong and reliable structure, the aircraft would not be able to safely carry passengers or cargo.

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6.

Which of these is a prime number?
- 6
- 10
- 5
- 12
Correct Answer

A. 5

Explanation

A prime number is a number that is only divisible by 1 and itself. In this case, the number 5 is the only option that fits this criteria. The numbers 6, 10, and 12 are all divisible by numbers other than 1 and themselves, making them composite numbers. Therefore, the correct answer is 5.

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7.

What is the total sum of angles in a triangle?
- 270 degrees
- 180 degrees
- 360 degrees
- 240 degrees
Correct Answer

A. 180 degrees

Explanation

The total sum of angles in a triangle is always 180 degrees. This is a fundamental property of triangles and is derived from the fact that the sum of the angles in any polygon is equal to (n-2) times 180 degrees, where n is the number of sides of the polygon. Since a triangle has 3 sides, the sum of its angles is (3-2) times 180 degrees, which equals 180 degrees.

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8.

What is the square root of 144?
- 12
- 15
- 24
- 6
Correct Answer

A. 12

Explanation

The square root of a number is a value that, when multiplied by itself, gives the original number. In this case, the square root of 144 is 12 because 12 multiplied by itself equals 144.

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9.

What does the empennage of an aircraft refer to?
- Tail of the aircraft
- Propeller of the aircraft
- Communication of the aircraft
- Navigation system of the aircraft
Correct Answer

A. Tail of the aircraft

Explanation

The empennage of an aircraft refers to the tail of the aircraft. It includes the horizontal stabilizer, vertical stabilizer, and control surfaces such as elevators and rudders. The empennage plays a crucial role in stabilizing and controlling the aircraft during flight.

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10.

Which of these operations should be executed first in a math problem?
- Division
- Subtraction
- Multiplication
- Addition
Correct Answer

A. Division

Explanation

In a math problem, the division operation should be executed first before any other operation. This is because division has a higher precedence than subtraction, multiplication, and addition. So, when solving a problem, one should perform division first to get the quotient, and then proceed with the other operations.

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