all multiple choice simple combination of math and chemistry and physics questions.
take_test__safe_4140_mathchemphys_pretest_____safety_and_….pdf

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1/26/2019
Take Test: Safe 4140 MathChemPhys Pretest – Safety and …
Take Test: Safe 4140 MathChemPhys Pretest
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QUESTION 1
2 points
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answer which of the following most accurately describes what is the main component of air:
nitrogen
oxygen
nitrogen molecule
oxygen molecule
carbon dioxide
QUESTION 2
how many cubic meters in a liter?
0.1
0.001
10
0.01
1
QUESTION 3
the area of a square with side of 1 unit is:
none of listed answers is correct
10 units squared
100 units squared
0.1 units squared
1 unit squared
QUESTION 4
an example of polarized particle could be
water molecule
any atomic cation
carbon dioxide
oxygen molecule
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nitrogen
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Take Test: Safe 4140 MathChemPhys Pretest – Safety and …
QUESTION 5
2 points
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2 points
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2 points
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2 points
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2 points
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the circumference of a circle with radius of 1 unit is:
6.283 units
3.14 units
3 times the radius
0.14 units
none of listed answers is correct
QUESTION 6
one cubic centimeter is:
one milliliter
one fluid ounce
all answers correct
one milligram
one tenth of a liter
QUESTION 7
if the ration of two physical quantities is a constant by definition then if we increase the value of one of the physical quantities the
other will:
decrease correspondingly
need to plug numbers to answer
increase correspondingly
not change
not enough information
QUESTION 8
an ion is:
molecule with charge different than normal proton electron equilibrium
any particle different than electron that can move in presence of voltage (electric potential)
all answers correct
atom with charge different than normal proton electron equilibrium
particle either atom or molecule with missing electron
QUESTION 9
as a result of human metabolism and consumption of oxygen we exhale:
carbon dioxide
all answers correct
water vapor
oxygen
nitrogen
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QUESTION 10
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2 points
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1/26/2019
Take Test: Safe 4140 MathChemPhys Pretest – Safety and …
the term metabolism of humans refers to:
chemical process of using energy from degradation of organic matter
all answers correct
processing organic matter using oxygen and releasing carbon dioxide
process of turning food in to energy and heat
biochemical process of transforming energy in the human body
QUESTION 11
2 points
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2 points
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2 points
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2 points
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2 points
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the wind outdoors has what effect on human body?
none of listed answers is correct
depends on the temperature
heating if strong
none
cooling
QUESTION 12
a circle with 12-inch diameter has area in square feet of:
7.85 square feet
1.57 square feet
none of listed answers is correct
0.785 squared feet
18.84 square feet
QUESTION 13
how many liters in a cubic meter?
1000
10000
100
10
1
QUESTION 14
one square foot has how many squared inches:
136
12
36
144
1400
QUESTION 15
oxygen is usually about:
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none of listed answers is correct
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19-21 mg/meter cubed of air
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Take Test: Safe 4140 MathChemPhys Pretest – Safety and …
19-21% of a mass unit of air
19-21 ppm in the air
19-21% of volume unit of air
QUESTION 16
2 points
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2 points
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2 points
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2 points
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2 points
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how many percent of an inch is one centimeter?
39
13
78
10
none of listed answers is correct
QUESTION 17
how many percent of a centimeter is one inch?
78
none of listed answers is correct
354
254
39
QUESTION 18
if you drive and cover 50 miles in half an hour your average speed is:
50 mi/h
1 mi/h
150 mi/h
100 mi/h
1/2 mi/h
QUESTION 19
how many centimeters in a foot?
30.48
2.54
none of listed answers is correct
24.48
12.5
QUESTION 20
how many inches in 1 meter?
25.4
39.37
139.3
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0.39
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Take Test: Safe 4140 MathChemPhys Pretest – Safety and …
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