Free ASVAB Practice Tests

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Sample Practice Test Questions

General Science

Which of the following is the correct order for types of radiation from lowest to highest frequency?

radio waves → visible light → gamma rays

The electromagnetic spectrum covers all possible wavelengths and frequencies of radiation.  From lowest frequency (longest wavelength) to highest frequency (shortest wavelength) radiation: radio waves → microwaves → infrared waves → visible light → ultraviolet light → X-rays → gamma rays.

Word Knowledge
Bob's immoderate appetite shocked the guests at the wedding banquet.
excessive
Beyond usual or proper limits.
Electronics Information
inductor

This circuit component symbol represents a(n):

inductor

An inductor is coiled wire that stores electric energy in the form of magnetic energy and resists changes in the electric current flowing through it. If current is increasing, the inductor produces a voltage that slows the increase and, if current is decreasing, the magnetic energy in the coil opposes the decrease to keep the current flowing longer. In contrast to capacitors, inductors allow DC to pass easily but resist the flow of AC.

General Science

Which of the following would be used in eye glasses to correct nearsightedness?

concave lens

Unlike curved mirrors that operate on the principle of reflection, lenses utilize refraction. A convex lens is thicker in the middle than on the edges and converges light while a concave lens is thicker on the edges than in the middle and diffuses light. A common use for curved lenses is in eye glasses where a convex lens is used to correct farsightedness and a concave lens is used to correct nearsightedness.

Math Knowledge
19

If a = 4, b = 2, c = 9, and d = 4, what is the perimeter of this quadrilateral?

19

Perimeter is equal to the sum of the four sides:

p = a + b + c + d
p = 4 + 2 + 9 + 4
p = 19

Word Knowledge
Diffident most nearly means:
timid
Lacking self–confidence.
Word Knowledge
Paula negated Tiffany's argument by proving that her main premise was false.
neutralize
To make invalid.
Electronics Information

A diode to an electronic circuit is like a _______________ to a city?

one-way street

A diode allows current to pass easily in one direction and blocks current in the other direction.

Word Knowledge
The drab winter scene made Keisha long for the vibrant colors of spring.
dreary
Dull, monotonous.
Word Knowledge
Parity most nearly means:
sameness
Equality.