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Sample Practice Test Questions
The dimensions of this cube are height (h) = 5, length (l) = 1, and width (w) = 4. What is the volume?
The volume of a cube is height x length x width:
v = h x l x w
v = 5 x 1 x 4
v = 20
The angle of reflection is equal to which the following?
angle of incidence
The law of reflection specifies how waves, including light waves, bounce off of surfaces. Specifically, the angle of incidence of the approaching wave is equal to the angle of reflection of the reflected wave as measured from a line perpendicular (90°) to the surface.
Which of the following is not a base unit in the metric system?
degree Fahrenheit
The Fahrenheit scale is used for measuring temperature in the British system. The metric system uses the Celsius scale.
Gases from combustion are pushed out through the exhaust valve as the piston travels up the cylinder to top dead center. This describes which engine stroke?
exhaust
During the exhaust stroke, just before the piston reaches bottom dead center the exhaust valve opens. The resulting gases from combustion are then pushed out through the exhaust valve as the piston travels up the cylinder to top dead center, completing stroke four of the four-stroke piston cycle.
In taxonomy, domains are the broadest classification of life. How many domains are there?
3
The broadest classification of life splits all organisms into three groups called domains. The three domains of life are bacteria, archaea and eukaryota.
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.
Which of these is matter than cannot be separated into different types of matter by ordinary chemical methods?
element
An element is matter than cannot be separated into different types of matter by ordinary chemical methods.
Which of the following is not true about a line drop?
it is addressed by raising current and lowering voltage across the ransmission line
Electricity is delivered from power stations to customers as AC because it provides a more efficient way to transport electricity over long distances. A line drop is a decrease in voltage between two points on an electrical transmission line due to resistance in the line. A lower current and higher voltage across the line will help compensate for the line drop.
Which of the following regulates the flow of coolant through the radiator?
thermostat
The thermostat controls coolant (and, through it, engine) temperature by regulating the flow of coolant through the radiator. A bypass tube allows coolant to bypass the radiator and flow back into the water pump when its temperature is low enough that the thermostat is closed.
The joule is a unit of measurement for:
energy
The joule is a unit of measurement for energy.