ASVAB Electronics Information Practice Test 23316 Results

Your Results Global Average
Questions 5 5
Correct 0 3.04
Score 0% 61%

Review

1 How would you connect 8 [6V 25A] batteries to achieve a combined power output of 6V 200A?
51% Answer Correctly
series
orthogonal
series-parallel
parallel

Solution

Connecting the 8 batteries in series multiplies their voltage while keeping their current the same yielding a 48V 25A configuration. Connecting the 8 batteries in parallel multiplies their current while keeping their voltage the same yieleding a 6V 200A configuration. Using a series-parallel connection, 4 batteries can be connected in series and 4 can be connected in parallel resulting in a 24V 100A configuration.


2

This circuit diagram represents a(n):

69% Answer Correctly

open circuit

series-parallel circuit

series circuit

parallel circuit


Solution

A series circuit has only one path for current to flow. In a series circuit, current (I) is the same throughout the circuit and is equal to the total voltage (V) applied to the circuit divided by the total resistance (R) of the loads in the circuit. The sum of the voltage drops across each resistor in the circuit will equal the total voltage applied to the circuit.


3

Which of the following is not an advantage of semiconductors over conductors?

49% Answer Correctly

materials to produce semiconductors are cheap and abundant

a semiconductor conducts current better than a conductor

a semiconductor's conductivity can be varied under an external electrical field

a semiconductor exhibits increased conductivity with increased temperatures


Solution

A semiconductor is a material that has a limited ability to conduct electrical current with conductivity between that of an insulator and that of a conductor. Silicon, a cheap and abundant material, is the most used semiconductor material although other materials are used in the electronics components made from semiconductors. The primary advantages of a semiconductor over a conductor is that the conductivity of a semiconductor can be varied under an external electrical field giving engineers precise control over complex circuits and, unlike conductors like metals, a semiconductor's conductivity increases with increased temperatures.


4

Resistance and current are __________ proportional.

68% Answer Correctly

not

directly

exponentially

inversely


Solution

Resistance is opposition to the flow of current and is measured in ohms (Ω). One ohm is defined as the amount of resistance that will allow one ampere of current to flow if one volt of voltage is applied. As resistance increases, current decreases as resistance and current are inversely proportional.


5

An engineer who wants to document an electric circuit would create which of the following?

67% Answer Correctly

a layout

a schematic

a blueprint

a matrix


Solution

A schematic is the proper name for a drawing of an electric or electronic circuit.