Mathematics in Aviation Maintenance Chapter 3 Exam Solution Manual Already Passed
When working with fractions, the common denominator can be found by multiplying all of the denominators together. - Answers True
An aircraft bolt has an overall length of 1-1/2 inches, a shank length of 1-3/16 inch...
When working with fractions, the common denominator can be found by multiplying all of the
denominators together. - Answers True
An aircraft bolt has an overall length of 1-1/2 inches, a shank length of 1-3/16 inches, and a threaded
portion length of 5/8 inch. What is the grip length? - Answers 0.5625 inch
When dividing fractions, it is best to invert the second fraction and multiply the resulting numbers. -
Answers True
Select the fractional equivalent for a 0.0625 inch thick sheet of aluminum. - Answers 1/16
Which decimal is most nearly equal to a bend radius of 31/64? - Answers 0.4844
A blueprint shows a hole of 0.17187 to be drilled. Which fraction size drill bit is most nearly equal? -
Answers 11/64
An airplane flying a distance of 750 miles used 60 gallons of gasoline. How many gallons will it need to
travel 2,500 miles? - Answers 200
What is the speed ratio of an input gear with 36 teeth meshed to a gear with 20 teeth? - Answers 1: 1.8
What is the ratio of a gasoline fuel load of 200 gallons to one of 1,680 pounds? - Answers 5: 7
A pinion gear with 14 teeth is driving a spur gear with 42 teeth at 140 RPM. Determine the speed of the
pinion gear. - Answers 420 RPM
What is the speed of a spur gear with 42 teeth driven by a pinion gear with 14 teeth turning 420 RPM? -
Answers 140 RPM
What is the definition of proportion? - Answers A statement of equality between two or more ratios
A pilot flies .81 of the way to her destination before she stops and refuels. How much is left of her trip? -
Answers 19%
An engine of 98 horsepower maximum is running at 75 percent power. What is the horsepower being
developed? - Answers 73.50
An airplane is flying at 22,000 feet above sea level. The current temperature at sea level is -4 degrees
and the temperature at 22,000 feet above sea level is 25 degrees cooler. If the ratio of temperature
change remains constant as altitude is increased, what is the temperature at 30,000 feet? - Answers -38
degrees
If an engine is turning 1,965 rpm at 65 percent power, what is its maximum rpm? - Answers 3,023
The battery of an unmanned aircraft is 21% discharged. The capacity of the battery is 2,400 amps. How
many amps remain in the battery? - Answers 1,896 amps
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