Question 1

A tune-up increases a car’s fuel efficiency by 5%.

If a car averaged 20 miles per gallon before the tune-up, how many miles per gallon will it average after the

tune-up?

Options :

A : 25

B : 22

C :

201⁄2

D :

21

Answer: D

Question 2

The ___________ of an isotope is the time in which it takes half of an initial amount of an isotope to decay into something else.

Options :

A : decay period

B : half-life

C : covalence coefficient

D : midlife decay point

Answer: B

Question 3

What effect does a speaker wire’s gauge have on speaker sound quality?

Options :

A : higher gauge wires are thicker with better sound quality

B : lower gauge wires are thicker with better sound quality

C : lower gauge wires are thicker with lesser sound quality

D : hire gauge wires are thicker with lesser sound quality

Answer: B

Question 4

If you want to visit the deepest lake in the United States, you’ll need to go to the southwestern part of Oregon. Since its establishment in 1902, Crater Lake has occupied 183,000 acres there and is 1,958 feet deep. This makes it one of the world’s deepest lakes. It all began when the Mount Mazama volcano erupted over 7,000 years ago. There were glaciers around the eruption site and clear blue water from them filled the volcano basin, or caldera. When you visit the Crater Lake National Park to see this wonder of nature, you will also find 680 species of plants, 158 types of birds, and 74 different animals. Based on the above passage, the author would agree that __________.

Options :

A : Crater Lake is considered one of the deepest lakes in both the United States and the world

B : Crater Lake is a man-made lake

C : Crater Lake National Park has very few plant species

D : Crater Lake is the only tourist attraction at Crater Lake National Park

Answer: A

Question 5

A resistor marked 2.5K ohms has the value of __________.

Options :

A : 2.5 ohms

B : 250 watts

C : 2,500 ohms

D : 25,000 ohms

Answer: C

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