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Sample Practice Test Questions

Math Knowledge

Solve for y:
y2 - 5y - 6 = 0

-1 or 6

The first step to solve a quadratic equation that's set to zero is to factor the quadratic equation:

y2 - 5y - 6 = 0
(y + 1)(y - 6) = 0

For this expression to be true, the left side of the expression must equal zero. Therefore, either (y + 1) or (y - 6) must equal zero:

If (y + 1) = 0, y must equal -1
If (y - 6) = 0, y must equal 6

So the solution is that y = -1 or 6

Automotive Information

Which of the following is a relay that connects the battery to the starter motor when the ignition key is turned?

solenoid

The cylindrical solenoid is a relay that safely connects the high amperage battery to the starter motor when the ignition key is turned. This current then allows the engine to turn at a high enough speed to start.

Word Knowledge
The soldiers cherished the kindly Nurse Nightingale for her pathos.
compassion
Sympathetic pity.
General Science

Which of the following substances gives up negatively charged hydroxide ions (OH-) when dissolved in water?

base

An acid is a substance that gives up positively charged hydrogen ions (H+) when dissolved in water. A base (alkaline) gives up negatively charged hydroxide ions (OH-) when dissolved in water. pH is a scale that measures of how basic or acidic a solution is. Numbered from 0 to 14, solutions with a pH of 7 are neutral, less than 7 are acidic, more than 7 are alkaline.

Mechanical Comprehension

A a seesaw / teeter-totter is an example of which of the following?

first-class lever

A first-class lever is used to increase force or distance while changing the direction of the force. The lever pivots on a fulcrum and, when a force is applied to the lever at one side of the fulcrum, the other end moves in the opposite direction. The position of the fulcrum also defines the mechanical advantage of the lever. If the fulcrum is closer to the force being applied, the load can be moved a greater distance at the expense of requiring a greater input force. If the fulcrum is closer to the load, less force is required but the force must be applied over a longer distance. An example of a first-class lever is a seesaw / teeter-totter.

Word Knowledge
After shouting to his players through the long game, the coach's voice was raspy.
harsh
rough, grating.
Automotive Information

Coolant is circulated through the engine by the:

water pump

The water pump is driven by a belt connected to the crankshaft and ensures that coolant moves through the engine and radiator.

Word Knowledge
The gargantuan monster towered over the ten–story bulding.
enormous
Gigantic.
Mechanical Comprehension

Power is the rate at which:

work is done

Power is the rate at which work is done, P = w/t, or work per unit time. The watt (W) is the unit for power and is equal to 1 joule (or newton-meter) per second. Horsepower (hp) is another familiar unit of power used primarily for rating internal combustion engines. 1 hp equals 746 watts.

Automotive Information

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.