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Sample Practice Test Questions

General Science

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.

Automotive Information

A constant velocity (CV) joint is closely related to which of the following?

universal joint

Like CV joints, universal joints (U-joints) are located at each end of a drive shaft and allow the shaft to operate at a variable angle with the item it is driving. Universal joints perform the same basic function as CV joints but CV joints have a wider range of operation.

General Science

The asteroids in the Kuiper belt are composed of which of the following?

frozen methane, ammonia, and water

The Kuiper Belt is similar to the asteroid belt but much larger. Extending beyond the orbit of Neptune, it contains objects composed mostly of frozen methane, ammonia, and water. Most notably, the Kuiper Belt is home to Pluto, a dwarf planet that, until a 2006 reclassification, was considered the ninth planet of the solar system.

Automotive Information

The radiator is responsible for tranferring heat from the coolant to:

outside air

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.

General Science

In the food chain, omnivores may be which of the following?

secondary or tertiary consumers

Secondary or tertiary consumers may be omnivores.

Word Knowledge
Compulsion most nearly means:
urge
An irresistible impulse.
General Science

Water freezing or boiling is an example of which of the following?

phase transition

A substance undergoes a phase transition when it moves from one state of matter to another, for example, when water freezes or boils.

Word Knowledge
Lurid most nearly means:
gruesome
Causing horror, shocking.
Electronics Information

A transistor works by allowing a small amount of current to control general current flow. Where is the small amount of current applied?

base

The transistor is the foundation of modern electronic devices. It is made entirely from semiconductor material (making it a solid state device) and can serve many different functions in a circuit including acting as a switch, amplifier, or current regulator. A transistor works by allowing a small amount of current applied at the base to control general current flow from collector to emitter through the transistor.

Automotive Information

Which of the following is not a part of the oil pump?

oil galleries

The oil pump is driven by the camshaft and is responsible for pumping oil through the oil galleries (passages) that run throughout the engine. It also contains the oil filter and a pressure relief valve which prevents excessive pressure from building up in the lubrication system.