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Sample Practice Test Questions
Which of the following is the correct order for the engine stroke cycle?
intake, compression, power, exhaust
The stroke cycle order is intake stroke, compression stroke, power stroke, exhaust stroke.
The ohm is a unit of measurement for:
resistance
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.
Which of the following is not a terrestrial planet?
Jupiter
The four planets closest to the Sun (Mercury, Venus, Earth, and Mars) are called terrestrial (Earth-like) planets because, like the Earth, they're solid with inner metal cores covered by rocky surfaces.
In the metric system, what prefix represents 103?
kilo
Kilo is the metric system prefix for 103.
A subatomic particle found in the nucleus of an atom. It carries no electric charge. This desribes which of the following?
neutron
A neutron is a subatomic particle found in the nucleus of an atom. It is neutral as it carries no electric charge.
Convert 5C° to F°.
41
To convert from C° to F° use:
\(F° = {9 \over 5}C° + 32\)
\(F° = {9 \over 5}(5) + 32\)
\(F° = {45 \over 5} + 32\)
\(F° = 9 + 32 = 41\)
Which of the following is not a type of simple machine?
gear
The six types of simple machines are the lever, wheel and axle, pulley, inclined plane, wedge, and screw.
Which of the following maintains pressure in the cooling system?
radiator cap
The radiator is responsible for tranferring heat from the coolant to the outside air. Radiator hoses transfer coolant to and from the engine to the radiator and a radiator cap maintains pressure in the cooling system to increase the boiling point of the coolant mixture and thus allow it to absorb more heat.