Week 1 - Level 1 Review

Question 1

How many pounds (lbs) in a US gallon?

Answer 1

8.34 lbs

Question 2

What is the sensible heat of air formula?

Answer 2

BTU = 1.08 * CFM * deltaT

Question 3

What is the latent heat of vaporization of water?

Answer 3

970 btu/lb

Question 4

How many Watts is 1 HP?

Answer 4

746 Watts

Question 5

How many btu/hr is 1 HP?

Answer 5

42.42 btu/hr

Question 6

How many ft-lbs/min is 1 horsepower?

Answer 6

33,000 ft-lbs/min

Question 7

How many ft-lbs is 1 BTU?

Answer 7

778 ft-lbs

Question 8

How many feet in a meter?

Answer 8

3.28 feet

Question 9

How much does 1 cubic foot of water weigh?

Answer 9

62.4 lbs

Question 10

How much does 1 cubic foot of air weigh?

Answer 10

0.074 lbs

Question 11

How much is 1 (US) ton?

Answer 11

2000 lbs

Question 12

What is atmospheric pressure in psia?

Answer 12

14.696 psia

Question 13

What is atmospheric pressure in “Hg (inches of mercury)?

Answer 13

29.921

Question 14

What is atmospheric pressure in kPa?

Answer 14

101.325 kPa

Question 15

How many microns is atmospheric pressure?

Answer 15

760,000 microns

Question 16

What is specific gravity?

Answer 16

The ratio of the mass of a certain volume of liquid or gas compared to the mass of an equal volume of water (liquid) or air (gas).

Question 17

What is measurement is an absolute scale and corresponds with Fahrenheit? How many units are they offset?

Answer 17

Rankine and 460

Question 18

What is measurement is an absolute scale and corresponds with Celsius? How many units are they offset?

Answer 18

Kelvin and 273

Question 19

What is the formula for converting atmospheric pressures?

Answer 19

Convert to x reference number
Convert From

Question 20

A substance that is a chemical combination of 2 or more elements is called a ____________

Answer 20

Compound

Question 21

What are the 3 parts of an atom?

Answer 21

1. Proton
2. Neutron
3. Electron

Question 22

What is a substance made of only 1 type of atom called?

Answer 22

Element

Question 23

What is the smallest particle of a compound that retains the identity of the compound called?

Answer 23

Molicule

Question 24

What is the force that binds molecules together?

Answer 24

Molecular Cohesion

Question 25

What is the formula for determining the amount of leverage needed?

Answer 25

F₁ D₁ = F₂ D₂ Where F = Force D = Distance

Question 26

What is the formula for calculating pressure?

Answer 26

Pressure = Force / Area

Question 27

What is adiabatic compression?

Answer 27

The compressing of a gas without gaining heat from or losing heat to its surroundings.

Question 28

What is Pascal’s Law?

Answer 28

Force in gas is equal in all directions.

Question 29

What is Refrigeration?

Answer 29

The achievement of a temperature below that of the immediate surroundings.