Free ASVAB Practice Tests | ASVAB Test Bank

General Science

Which of the following is the formula for power?

\(P = {w \over t}\)

Power is the rate at which work is performed or work per unit time: \(P = {w \over t}\) and is measured in watts (W).

Word Knowledge

Kia straddled the issue, not wanting to say whether James or Tara was right.

waffle

To favor opposing sides.

Word Knowledge

They were ecstatic when their team won the championship game in the last second.

overjoyed

Overwhelmingly emotional.

Math Knowledge

Find the value of b:
5b + x = -1
-2b - 3x = -3

-\(\frac{6}{13}\)

You need to find the value of b so solve the first equation in terms of x:

5b + x = -1
x = -1 - 5b

then substitute the result (-1 - 5b) into the second equation:

-2b - 3(-1 - 5b) = -3
-2b + (-3 x -1) + (-3 x -5b) = -3
-2b + 3 + 15b = -3
-2b + 15b = -3 - 3
13b = -6
b = \( \frac{-6}{13} \)
b = -\(\frac{6}{13}\)

Electronics Information

In electrical wiring, which of the following are proportional?

the diameter of the wire and the amount of the current

Current flow through a wire increases the temperature of the wire. If too small a wire is used, the wire will heat up causing a loss in conductivity and possibly a fire. The thicker in diameter a wire is, the more current it can carry without overheating.

Word Knowledge

Rashid made the untenable statement that George Washington was the second president of the United States.

baseless

Not able to be defended.

Math Knowledge

On this circle, a line segment connecting point A to point D is called:

chord

A circle is a figure in which each point around its perimeter is an equal distance from the center. The radius of a circle is the distance between the center and any point along its perimeter. A chord is a line segment that connects any two points along its perimeter. The diameter of a circle is the length of a chord that passes through the center of the circle and equals twice the circle's radius (2r).

Math Knowledge

Solve for z:
-6z + 9 = -7 + 7z

1\(\frac{3}{13}\)

To solve this equation, repeatedly do the same thing to both sides of the equation until the variable is isolated on one side of the equal sign and the answer on the other.

-6z + 9 = -7 + 7z
-6z = -7 + 7z - 9
-6z - 7z = -7 - 9
-13z = -16
z = \( \frac{-16}{-13} \)
z = 1\(\frac{3}{13}\)

Electronics Information

This circuit component symbol represents a(n):

fuse

Fuses are thin wires that melt when the current in a circuit exceeds a preset amount. They help prevent short circuits from damaging circuit components when an unusually large current is applied to the circuit, either through component failure or spikes in applied voltage.

Shop Information

Which of the following saws would you use for creating a curved cut in wood?

coping saw

Wood saws are categorized by their teeth shape and the number of teeth per inch (TPI). The higher the TPI of a saw the finer the cut it will make. Crosscut saws utilize knife-shaped teeth that cut across the grain of the wood while rip saws cut with the grain using chisel-shaped teeth that rip the wood cells apart as the cut is made. The kerf (slot) made by by a crosscut saw is much smoother than that made by a rip saw but a rip saw cuts much faster. Coping saws are a type of bow saw used to make detailed often curving cuts using replaceable blades with fine small teeth.