ENVIRONMENTAL ENGINEERING MIDTERM EXAM QUESTIONS AND ANSWERS

ENVIRONMENTAL ENGINEERING MIDTERM
EXAM QUESTIONS AND ANSWERS


State a common misperception about clouds and fog. - Correct Answers -They are
water vapor.

The density of ice is _______than the density of water, and an example is that ice
_______. - Correct Answers -Less; floats

Which of the following is NOT associated with water?
A. Freezing
B. Precipitation
C. Condensation
D. Boiling
E. Change of inner structure of water
F. Melting of ice
G. Evaporation - Correct Answers -E. Change of the inner structure of water.

Which of the following is not considered a natural water reservoir?
A. Ocean
B. Lake
C. River
D. Air
E. Cloud
F. Glacier - Correct Answers -D. Air.

T or f: if the density of ice was greater than the density of water, then the mass of ice
would be greater than the mass of water. - Correct Answers -False.

T or f: Evaporation involves a physical change. - Correct Answers -True.

T or F? All forms or states of water naturally exist in nature and all states are necessary
to survival. - Correct Answers -True

When water freezes, it's volume __________ unlike other liquids. - Correct Answers -
Expands unlike other liquids.

How many steps are involved in measuring a liquid sample? - Correct Answers -3 steps.

To measure the mass of a liquid sample, you must: calibrate the scale, measure the
mass of the dry glassware, and measure the mass of the glassware with the liquid
inside. - Correct Answers -True