1-3

Question 1

What is the sum of any number and its opposite?

Answer 1

Zero

Question 2

What is absolute value?

Answer 2

The distance or number of units from zero

Question 3

What is the result of addition?

Answer 3

Sum

Question 4

What is the result of subtraction?

Answer 4

Difference

Question 5

What is the result of multiplication?

Answer 5

Product

Question 6

What is the result of division?

Answer 6

Quotient

Question 7

What is the top number of a fraction called?

Answer 7

Numerator
And tells the portion of the bottom number being discussed

Question 8

What is the bottom number of a fraction called?

Answer 8

Denominator
And tells how many parts there are to the whole number

Question 9

How do you simplify a fraction?

Answer 9

Divide both the numerator and the denominator by the same non zero whole number until 1 is the only whole number that will divide into both terms of the fraction evenly

Question 10

What do you have to have in order to add or subtract fractions?

Answer 10

The denominator has to be the same.
Either multiply or divide both the numerator and denominator by the same whole number to get the same denominator
Always simplify at the end

Question 11

How do you multiply fractions?

Answer 11

Multiply both numerators and then both denominators
Then simplify

Question 12

How do you divide fractions?

Answer 12

Multiply by its reciprocal
Cross multiply
Then simplify

Question 13

What do you have to do with mixed numbers before adding subtraction multiplication or division?

Answer 13

Convert mixed numbers to improper fractions

Question 14

When do you place the decimal point for multiplication?

Answer 14

After multiplying count the decimal places from both numbers and place it that many spots in the answer

Question 15

When do you place the decimal point when dividing?

Answer 15

Before dividing. Move the decimal point in the divisor to make it a whole number then move the decimal point the same number of spots in the dividend and place the decimal for the quotient above the decimal point of the dividend

Question 16

How do you add or subtract decimals?

Answer 16

Line up the decimal points then add or subtract

Question 17

How do you convert decimals to fractions?

Answer 17

Digits to the right of the decimal point are the numerator and the place value as the denominator
.127 = 127/1000
.2 = 2/10

Question 18

How do you convert a decimal to a percent?

Answer 18

Move the decimal two places to the right and add % sign

Question 19

How do you convert a percent to a fraction?

Answer 19

Convert percent to decimal and decimal to fraction

Question 20

How do you convert a percent to a decimal?

Answer 20

Move the decimal two places to the left and drop the %

Question 21

What is the simplest form of any matter called?

Answer 21

Element

Question 22

What are the parts of an atom?

Answer 22

Electron
Proton
Neutron

Question 23

What makes up the nucleus of an atom?

Answer 23

Protons and neutrons

Question 24

What are the smaller sub-particles of the proton and neutron called?

Answer 24

Quarks

Question 25

How many times greater is the mass of a proton than the mass of an electron?

Answer 25

1,836 times greater

Question 26

What are valence electrons?

Answer 26

The electrons in the outer most orbit or shell of atoms

Question 27

How many valence electrons does a conductor generally have?

Answer 27

One or two

Question 28

How is the atomic number of an element derived from?

Answer 28

The number of protons in the nucleus

Question 29

What is the primary source of electrical power?

Answer 29

The flow of electrons

Question 30

How many electrons can the valence ring hold?

Answer 30

8 electrons

Question 31

What happens when a conductor is heated?

Answer 31

The resistance goes up

Question 32

What causes the flow of electrons?

Answer 32

Potential difference External forces applied Friction Chemical Heat Pressure Light Magnetism

Question 33

What is electromotive force?

Answer 33

EMF voltage-E A potential difference in electron charges

Question 34

What is current?

Answer 34

Ampere I Intensity of Electrical flow

Question 35

What is voltage?

Answer 35

E Electromotive force Electrical pressure

Question 36

What is resistance?

Answer 36

R Ohms Opposition to the current flow

Question 37

What is power?

Answer 37

P Watts Amount of work being done per unit of time Power is consumed when voltage is applied to a circuit and current flows through the load

Question 38

What is coulombs?

Answer 38

A fixed quantity of electrons The number of electrons is measured by the number of coulombs per second that move past a fixed point Used to measure amps 1 coulomb per second or 1 amp

Question 39

How many feet in a mile?

Answer 39

5280 ft

Question 40

What does the prefix kilo mean?

Answer 40

1000 One thousand

Question 41

What is ohms law?

Answer 41

I=E/R E=IxR R=E/I

Question 42

What system of measurement does most of the world use?

Answer 42

Metric

Question 43

Name the device that uses the heating of two different metals to produce an electrical potential?

Answer 43

Thermocouple

Question 44

What type of gas gives off light when current passes through it?

Answer 44

Neon, argon, mercury vapor

Question 45

What is the thermoelectricity process?

Answer 45

A transfer of electrons when two dissimilar metals are joined together at a junction and then heated Increase the temperature causes greater transfer of electrons

Question 46

What happens when you tie a knot in fiber rope?

Answer 46

The knot will derate the WLL of the rope by as much as 45-55% depending on the knot used

Question 47

What is the most effective way to join two ropes together?

Answer 47

Splice 85-95% efficiency

Question 48

How much does a bowline knot reduce rope strength?

Answer 48

25%

Question 49

How much does a hitch reduce the WLL of rope?

Answer 49

25-35%

Question 50

How do you identify the lay of a wire rope?

Answer 50

The direction the rope strands are twisted

Question 51

What are the 4 common lays for wire rope?

Answer 51

Right-hand regular-lay Left-hand regular-lay Right-hand lang-lay Left-hand lang-lay

Question 52

What’s the difference between regular lay and lang lay?

Answer 52

Regular lay the wires in the strand are twisted opposite to the lay of the strands Lang lay the wires in the strand are twisted the same direction as the lay of the strands

Question 53

What makes wire rope more flexible?

Answer 53

The make-up of the core Fiber core is most flexible

Question 54

What is the advantage of seal stranded wire rope?

Answer 54

It is the least susceptible to wear

Question 55

When does wire rope need to be replaced?

Answer 55

A loss of diameter of more than 10% Signs of crushing Excessive number of broken wires

Question 56

When setting up a ladder what is the ratio of height vs distance for proper angle?

Answer 56

1/4 one ft out for every 4 ft up About 75 degrees Must have 3ft of ladder past top of structure

Question 57

When working from a ladder on overhead lines what should a worker do?

Answer 57

Always tie off to ladder and tie ladder off to structure Use bare steel wrench or other tool to slap structure on first and last contact to prevent electrostatic shock

Question 58

Why is a worker subject to static shock when transferring from a ladder to the tower?

Answer 58

Electrostatic charge and potential difference between the tower and body

Question 59

How many tie downs do you need when hauling equipment on a trailer?

Answer 59

At least 4 points of tie down Plus tie down for movable attachments such as bucket or arm

Question 60

How far away should personal be from excavation equipment while in operation?

Answer 60

6 ft from trencher Keep a clear zone around equipment Stay far enough away that any part of the equipment cannot strike anyone

Question 61

Where can you find specific information for a piece of equipment?

Answer 61

Operator’s manual

Question 62

To properly place a piece of equipment on a trailer where should the weight of the machine be centered?

Answer 62

Centered over the trailer axles

Question 63

What is the term for a potentially hazardous situation?

Answer 63

Warning

Question 64

What is the term for an imminent hazardous situation?

Answer 64

Danger

Question 65

Who should conduct a job briefing?

Answer 65

The employee in charge of the work to be done

Question 66

How should you park a piece of equipment on the road?

Answer 66

Park on the right hand side facing the direction of traffic flow

Question 67

When a load is suspended, can you get off the equipment?

Answer 67

No

Question 68

What information must be on the MSDS?

Answer 68

Identity of the chemical The chemical and common names Physical and chemical characteristics Physical hazards Health hazards Primary route of entry into the body Permissible exposure limits Listing for known carcinogens Any known handling precautions Any know control measures Emergency and first aid procedures Date msds was prepared and revised Chemical manufacturer info

Question 69

What is the purpose of hazard communication standard?

Answer 69

To control chemical exposure on the job Issued by OSHA

Question 70

Carcinogenicity is an example of a health hazard related to chemical use

Answer 70

Carcinogens cause cancer Exposure to hazardous chemicals

Question 71

What class of hard hat is used by electrical workers?

Answer 71

Class E

Question 72

How long is the test date good for on rubber gloves?

Answer 72

6 months

Question 73

Electrical hazard shoes are good for how many volts in dry conditions?

Answer 73

600 volts