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Sample Practice Test Questions
"An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force." This describes which of Newton's laws of motion?
first
Also known as the law of inertia, Newton's first law of motion states that An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
Control arms connect a vehicle's suspension to the frame. The connection to the frame uses:
bushings
Control arms (upper and lower) connect a vehicle's suspension to the frame. The connection to the wheels is through ball joints which allow the control arms to turn and move up and down simultaneously. The frame connection uses bushings.
The fuel injector is regulated by the __________ which is the main computer that controls engine and transmission functions.
powertrain control module
The fuel injector sprays fuel into the air stream that's being fed into the cylinder head via the intake valve. The timing and amount of fuel are regulated by the powertrain control module (PCM) which is the main computer that controls engine and transmission functions.
Longer the electrical wires mean _______________ voltage drop.
greater
Electrical wires have a certain amount of resistance per foot. A longer wire means more resistance and a greater voltage drop.
What is \( \frac{28\sqrt{35}}{4\sqrt{5}} \)?
To divide terms with radicals, divide the coefficients and radicands separately:
\( \frac{28\sqrt{35}}{4\sqrt{5}} \)
\( \frac{28}{4} \) \( \sqrt{\frac{35}{5}} \)
7 \( \sqrt{7} \)