Free ASVAB Practice Tests

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Sample Practice Test Questions

Electronics Information

A capacitor is often used for which of the following purposes?

to maintain power in a circuit when the primary power source is disconnected

Capacitors store electricity and are used in circuits as temporary batteries. Capacitors are charged by DC current (AC current passes through a capacitor) and that stored charge can later be dissipated into the circuit as needed. Capacitors are often used to maintain power within a system when it is disconnected from its primary power source or to smooth out or filter voltage within a circuit.

Word Knowledge
Regale most nearly means:
entertain
To amuse.
Automotive Information

Another name for a reciprocating engine is a(n):

piston engine

A reciprocating engine is an engine whose crankshaft is turned by pistons moving up and down in a cylinder.

Math Knowledge

The formula for the area of a circle is which of the following?

a = π r2

The circumference of a circle is the distance around its perimeter and equals π (approx. 3.14159) x diameter: c = π d. The area of a circle is π x (radius)2 : a = π r2.

Word Knowledge
The arrogant writer did not hide his disdain for his uneducated dinner companion.
scorn
Feeling of contempt.
General Science

Velocity and displacement are fully described by both a magnitude and a direction.  Velocity and displacement are which of the following?

vector quantities

Velocity and displacement are vector quantities which means each is fully described by both a magnitude and a direction.  In contrast, scalar quantities are quantities that are fully described by a magnitude only.  A variable indicating a vector quantity will often be shown with an arrow symbol:  \(\vec{v}\)

Mechanical Comprehension

The science that deals with motion and the forces that produce motion is called which of the following?

mechanics

Mechanics deals with motion and the forces that produce motion.

Word Knowledge
Camaraderie most nearly means:
sociability
Spirit of friendship.
Word Knowledge
Appalling most nearly means:
dreadful
Inspiring dismay or disgust.
General Science

Menstruation occurs when:

the ovum fails to become fertilized

If the ovum fails to become fertilized, the lining of the uterus sloughs off during menstruation. From puberty to menopause, this cycle of menstruation repeats monthly (except during pregnancy).