ASTB-E ASTB-E Math & Mechanical Reasoning 2

Question 1

A pulley system has one fixed and one movable pulley. Ignoring friction, how much force is needed to lift a 200-pound load?

Accepted Answer

100 pounds

Answer

200 pounds

Answer

50 pounds

Answer

25 pounds

Question 2

Solve for x: 3x + 9 = 30

Accepted Answer

7

Answer

5

Answer

6

Answer

8

Question 3

Water flows through a pipe at 4 gallons per minute. How many gallons flow through in 2.5 hours?

Accepted Answer

600 gallons

Answer

400 gallons

Answer

500 gallons

Answer

700 gallons

Question 4

A spring compressed by 3 inches requires 15 pounds of force. How much force is needed to compress it 5 inches (assuming linear spring)?

Accepted Answer

25 pounds

Answer

20 pounds

Answer

30 pounds

Answer

35 pounds

Question 5

An aircraft travels at 300 knots. Approximately how many miles per hour is this?

Accepted Answer

345 mph

Answer

260 mph

Answer

300 mph

Answer

415 mph

Question 6

Which of the following represents the greatest mechanical advantage for lifting a heavy load?

Accepted Answer

A ramp with a 10-degree incline

Answer

A single fixed pulley

Answer

A ramp with a 30-degree incline

Answer

A lever with equal arm lengths