AMT General Prep. ----- Mathmatics

8408: A six cylinder engine with a bore of 3.5 inches, a cylinder height of 7 inches and a stroke of 4.5 inches will have a total piston displacement of

259.77 cubic inches

8384: Find the cube of 64.

262,144

8432: Solve the equation. [(4x3)+(-9x2)]/2=

-15

8393: Find the square root of 1,824.

.42708*10 to the second power

8415: A certain aircraft bolt has an overall length of 1-1/2 inches, with a shank length of 1-3/16 inches, and a thread portion length of 5/8 inches. What is the grip length?

.5625 inch

8385: Find the value of to raised to the negative sixth power.

0.000001

8393-3: (Refer to Figure 67) Solve the Equation.

0.42

8428: The radius of a piece of round stock is 7/32. Select the decimal which is most nearly equal to the diameter.

0.4375

8399: A rectangular-shaped fuel tank measures 60 inches in length, 30 inches in width, and 12 inches in depth. How many cubic feet are within the tank?

12.5

8437: (Refer to Figure 58) Solve the equation.

14.002

8431: How much current does a 30-volt, 1/2 horsepower motor that is 85 percent efficient draw from the bus? (Note: 1 horsepower = 746 watts

14.6 amperes

8413: What is the speed of a spur gear with 42 teeth driven by a pinon gear with 14 teeth turning 420 RPM?

140 RPM

8379-2: Convert the binary number 1111 to decimal form.

15

8420: What is the speed ratio of an input gear with 36 teeth meshed to a gear with 20 teeth?

1:1.8

8393-4: (Refer to Figure 68) Which results in the largest number?

2

8441: Solve the equation. ( -3+2)(-12 - 4) + (-4 +6) x 3

22

8393-2: (Refer to Figure 70) Which alternative answer is equal to 5.59?

1

8390: What is the square root of 16 raised to the fourth power?

256

8434: Solve the equation. (32 x 3/8) / 16=

72

8398: What force is exerted on the piston in a hydraulic cylinder if the area of the piston is 1.2 square inches and the fluid pressure is 850 PSI?

1,020 pounds

8389: Find the square root of 124.9924.

1,118*10 to the negative second power

8418: Select the decimal which is most nearly equal to 77/64

1.2031

8388: Which alternative answer is equal to 16,300?

1.63*10 to the fourth power

8394: The total piston displacement of a specific engine is

The volume displaced by all the pistons during one revolution of the crankshaft

8416-1: Example of units used in the conventional (U.S. or English) measurement include

inch, feet, and yard

8391: (Refer to Figure 53) Solve the equation.

0.0419

8426: Which decimal is most nearly equal to a bend radius of 31/64?

0.4844

8401: (Refer to Figure 56) Compute the area of the trapezoid.

10 square feet

8379: What power of 10 is equal to 1,000,000,000?

10 to the ninth power

8396: What size sheet of metal is required to fabricate a cylinder 20 inches long and 8 inches in diameter?

20 inches x 25-9/64 inches

8419: An airplane flying a distance of 750 miles used 60 gallons of gasoline. How many gallons will it need to travel 2,500 miles?

200

8411: If the volume of a cylinder with the piston at bottom center is 84 cubic and the piston displacement is 70 cubic inches, then the compression ratio is

6:1

8403: What is the piston displacement of a master cylinder with a 1.5-inch diameter bore and a piston stroke of 4 inches?

7.0686 cubic inches

8424: An engine of 98 horsepower maximum is running at 75 percent power. What is the horsepower being developed?

73.5

8404: How many gallons of fuel will be contained in a rectangular-shaped tank which measures 2 feet in width, 3 feet in length, and 1 foot 8 inches in depth? (7.5 gal= 1 cu ft.)

75

8429: Maximum life for a certain part is 1100 hours. Recently, 15 of these parts were removed from different aircraft with an average life of 835.3 hours. What percent of the maximum part life has been achieved?

75.9 percent

8379-1: What is defined as a group of bits representing a complete piece of information?

Byte

8387: The number 3.47*10 to the negative fourth power is equal to

0.000347

8406: A four-cylinder aircraft engine has a cylinder bore of 3.75 inches and is 8.5 inches deep. With the piston on BC, the top of the piston measures 4.0 inches from the bottom of the cylinder. What is the approximate piston displacement of this engine?

200 cubic inches

8423: If an engine is turning 1,965 RPM at 65 percent power, what is the maximum RPM?

3,023

8436: Solve the equation. 1/2 (-30 + 34) 5 =

10

8410: 1.21875 is equal to

39/32

8383-1: (Refer to Figure 69) Solve the equation

12

8422: The parts department's profit is 12 percent on a new part. How much does the part cost if the selling price is $145.60?

$130.00

8438:(Refer to Figure 59) Solve the equation.

-5.20

8440: Solve the equation. -6[-9(-8+4) - 2(7+3)] =

-96

8393-1: (Refer to Figure 65) Which of the figures is using scientific notation?

1

8416: Select the fractional equivalent for a 0.0625 inch thick sheet of aluminum.

1/16

8409: Select the fraction which is equal to 0.0250.

1/40

8442: (Refer to Figure 60) Solve the equation.

11.9

8425: A blueprint shows a hole of 0.17187 to be drilled. Which fraction size drill bit is most nearly equal?

11/64

8379-3: Convert 7 to binary form.

111

8383: Which of the following is equal to the square root of (-1776)/(-2)-632?

16

8392: The result of 7 raised to the third power plus the square root of 39 equals to

349.24

8394-1: What is the surface area of a cube where a side (edge) measures 7.25 inches?

315.375 sq. in.

8386: What is the square root of 4 raised to the fifth power?

32

8433: Solve the equation. (64x 3/8) / 3/4

32

8442-1: (Refer to Figure 66) Solve the equation

36,002

8395-1: (Refer to Figure 71) What is the volume of a sphere with a radius of 4.5 inches?

381.7 cubic inches

8407: A rectangular-shaped fuel tank measures 37-1/2 inches in length, 14 inches in width, and 8-1/4 inches in depth. How many cubic inches are within the tank?

4,331.25

8395: (Refer to Figure 54) Compute the area of the trapezoid.

52.5 square ft.

8380: Find the square root of 1,746.

41.7852

8421: A pinon gear with 14 teeth is driving a spur gear with 42 teeth at 140 RPM. Determine the speed of the pinion gear.

420 RPM

8430: What is the ratio of 10 feet to 30 inches?

4:1

8381: (Refer to Figure 52) Solve the equation.

5

8435: What is the ratio of a gasoline fuel load of 200 gallons to one of 1,680 pounds?

5:7

8397: (Refer to Figure 55) Find the area of the triangle shown.

6 square inches

8382: Find the square root of 3,722.1835.

61.0097

8417: Express 5/8 as a percent

62.5 percent

8402: (Refer to Figure 57) Determine the area of the triangle formed by points A, B, and C.

63 square in.

8400: Select the container size that will be equal in volume to 60 gallons of fuel.

8.0 cubic feet

8405: A rectangular shaped fuel tank measures 27-1/2 inches in length, 3/4 foot in width, and 8-1/4 inches in depth. How many gallons will the tank contain? (231 cu in= 1 gal)

8.83

8414: An engine develops 108 horsepower at 87 percent power. What horse power would be developed at 65 percent horsepower?

81

8427: Sixty-five engines are what percent of 80 engines?

81 percent

8439: Solve the equation. 4 - 3[-6(2+3) + 4] =

82

8412: Express 7/8 as a percent

87.5 percent