Free ASVAB Practice Tests

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Sample Practice Test Questions

Electronics Information

A __________ electric current produces a magnetic field proportional to the amount of current flow.

moving

A moving electric current produces a magnetic field proportional to the amount of current flow. This magnetic field can be made stronger by winding the wire into a coil and further enhanced if done around an iron containing (ferrous) core.

General Science

These clouds grow upward and can develop into cumulonimbus or thunderstorm clouds.

cumulus clouds

Cumulus clouds are large, puffy, mid-altitude clouds with a flat base and a rounded top. These clouds grow upward and can develop into a cumulonimbus or thunderstorm cloud.

Electronics Information

Electrical power is measured in:

watts

Electrical power is measured in watts (W) and is calculated by multiplying the voltage (V) applied to a circuit by the resulting current (I) that flows in the circuit: P = IV. In addition to measuring production capacity, power also measures the rate of energy consumption and many loads are rated for their consumption capacity. For example, a 60W lightbulb utilizes 60W of energy to produce the equivalent of 60W of heat and light energy.

Shop Information

When compared to drilling, boring makes __________ holes.

larger

Drilling is the process of making small holes in wood or metal while boring is the process of making larger holes.

Word Knowledge
Walter's trove of vintage baseball cards was worth thousands of dollars.
cache
Valuable collection.
General Science

Which of the following is not part of the carbon cycle?

precipitation

The carbon cycle represents the ciruit of carbon through Earth's ecosystem. Carbon dioxide (CO2) in the atmosphere is absorbed by plants through photosynthesis. Plants then die and release carbon back into the atmosphere during decomposition or are eaten by animals who breathe (respiration) the carbon into the atmosphere they exhale and produce waste which also releases carbon as it decays.

Word Knowledge
Audrey used her innocent baby brother as a scapegoat for the missing cookies.
dupe
Someone who bears the blame for others.
Electronics Information

The valence shell of a conductor is how full of electrons?

less than half full

Conductors are elements that allow electrons to flow freely. Their valence shell is less than half full of electrons that are able to move easily from one atom to another.

Automotive Information

Waste gases from combustion are removed from the combustion chamber by the:

exhaust valve

The combustion chamber is located in the cylinder head and contains the combustion of the air-fuel mixture. This mixture is delivered by an intake valve and the waste gases from combustion are removed from the combustion chamber by the exhaust valve.

Electronics Information

The valence shell of a semiconductor is how full of electrons?

half full

Semiconductors have valence shells that are exacly half full and can conduct electricity under some conditions but not others. This property makes them useful for the control of electrical current.