Mathematics (1)

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 ) a. 66.6 b. 75 c. 45

What is the square root of 4 raised to the 5th power? a. 32 b. 64 c. 20

Which if the figure is using scientific notation? • 3.47x 104 = 34, 700 • 2(4^10) 2,097,152 a. 1 b. 2 c. Both 1 and 2

Select the fractional equivalent for a 0.0625-inchthick sheet of aluminum. a. 1/16 b. 3/64 c. 1/32

Which decimal is most nearly equal to a bend radius of 31/64? a. 0.2065 b. 0.4844 c. 0.3164

What is the speed ratio of an input gear with 36 teeth meshed to a gear with 20 teeth? a. 9:5 b. 1:0.56. c. 1:1.8

The result of 7 raised to the third power plus the square root of 39 is equal to a. 349.24 b. 34924 c. 34324

A blueprint shows a hole of 0.171787 to be drilled. Which fraction size drill bit is most nearly equal? a. 11/64 b. 9/32 c. 11/32

Express 7/8 as a percent. a. 8.75 percent b. 875 percent c. 87.5 percent

Which alternative answer is equal to 16,300? a. 1.63x10 to the fourth power. b. 1.63x10 to the negative third power c. 163x10 to the negative second power.

A four cylinder aircraft engine has a cylinder bore of 3.78 inches and is 8.5 inches deep. With the piston on bottom center, the top of the piston measures 4.0 inches from the bottom of the cylinder. What is he approximate piston displacement of this engine? a. 200 cubic inches b. 360 cubic inches c. 235 cubic inches

An engine develops 108 horse power at 87 percent power. What horsepower would be developed at 65 percent power? a. 81 b. 70 c. 61

1.21875 is equal to a. 83/64 b. 19/16 c. 39/32

What size of sheet metal is required to fabricate a cylinder 20 inches long and 8 inches in diameter? (note C= pi x D) a. 20 inches x25-5/32 inches. b. 20 inches x24-9/64 inches. c. 20 inches x25-9/64 inches.

Solve the equation. 4- 3[-6(2+3) + 4] = a. 82 b. -25 c. -71

Solve the equation √31 2 + √43 2 (divided by) (17)^2 = a. .0297 b. .1680 c. .0419

Solve the equation. -6[-9(-8+4)-2(7+3)] = a. -332 b. 216 c. -96

What is the ratio of 10 feet to 30 inches? a. 4:1 b. 1:3 c. 3:1

Find the value of 10 raised to the negative sixth power. a. 0.000001 b. 0.000010 c. 0.0001

Maximum life for a certain part is 1100 hours. ** , 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? a. 75.9 percent b. 76.9 percent c. 75.0 percent

Find the area of the triangle shown. 3” 7.5” 4” a. 12 square inches b. 6 square inches c. 15 square inches

The total piston displacement of a specific engine is a. Dependent on the compression ratio. b. The volume displaced by all the pistons during one revolution of the crankshaft. c. The total volume of all the cylinders.

Select the fraction which is equal to 0.0250. a. ¼ b. 1/40 c. 1/400

Find the square root of 1824 a. 42.708x10 to the negative second power b. 32708 c. .42708x10 to the second power