Elementary Mechanics and Thermodynamics test 3

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1 point

What is the volume of a solid sphere 5 cm in diameter?

65.45 cm3

26.18 cm3

314.16 cm3

20.83 cm3

1 point

The volume of a circle is

4/3 x side

3.142 x length

side3

.7854 x side2

1 point

The unit of force is

joules

pascals

newtons

kilogram

1 point

How many square feet are there in 25 square meters?

2.31

38.5

270

0.432

1 point

The specific heat of brass is

0.795 kJ/kg K

0.383 kJ/kg K

0.125 kJ/kg K

8.4 kJ/kg K

1 point

How many cubic cm are there in a cubic meter?

100

10,000

1,000,000

1000

1 point

A saturated vapor

contains both liquid and vapor

has very little moisture

is at saturation pressure

is completely dry

1 point

One cubic meter is equal to

one tonne

9810 newtons

1000 liters

1000 gallons

1 point

One psi is equal to

6.895 kpa

2.98 kpa

101.3 kpa

147 kpa

1.61 kpa

10.

1 point

One kilowatt hour equals

1000 J

3,600,000 J

60,000 J

3600 J

11.

1 point

Evaluate 1+25x2=

12.

1 point

A kgm/s2 is call

newton

pascal

kilogram

liter

joule

13.

1 point

A meter/second/second is the unit of

velocity

distance

mass

acceleration

power

14.

1 point

What is the area of a circle with a radius of 5 cm?

19.635 cm2

3.927 cm2

15.71 cm2

78.54 cm2

15.

1 point

Calculate the quantity of heat required to heat ten kilograms of water from 10 degrees C to 110 degrees C

10 kJ

418.3 kJ

18.4 kJ

38.3 kJ

16.

1 point

The prefix milli means

million

millionth

hundredth

thousandth

billionth

17.

1 point

The pressure above the level of mercury, in a mercury thermometer is

constant at 200 kpa gauge

at atmospheric pressure

under a vacuum

always greater them atmospheric pressure

18.

1 point

Calculate the quantity of heat required to heat one kilogram of brass through one degree Celsius

0.383 kJ

18.4 kJ

One kJ

10 kJ

19.

1 point

What is the linear coefficient of expansion for brass?

0.0000184

0.383

18.4

0.000012

20.

1 point

Evaluate: 5m = mm

500

50,000

5000

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