Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Apprentice 1-1 through 1-3 > 1-3 > Flashcards

1-3 Flashcards

1
Q

What is the sum of any number and its opposite?

A

Zero

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is absolute value?

A

The distance or number of units from zero

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is the result of addition?

A

Sum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is the result of subtraction?

A

Difference

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the result of multiplication?

A

Product

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the result of division?

A

Quotient

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the top number of a fraction called?

A

Numerator
And tells the portion of the bottom number being discussed

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the bottom number of a fraction called?

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

How do you simplify a fraction?

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

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

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

How do you multiply fractions?

A

Multiply both numerators and then both denominators
Then simplify

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

How do you divide fractions?

A

Multiply by its reciprocal
Cross multiply
Then simplify

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

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

A

Convert mixed numbers to improper fractions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

When do you place the decimal point for multiplication?

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

When do you place the decimal point when dividing?

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

How do you add or subtract decimals?

A

Line up the decimal points then add or subtract

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

How do you convert decimals to fractions?

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

How do you convert a decimal to a percent?

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

How do you convert a percent to a fraction?

A

Convert percent to decimal and decimal to fraction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

How do you convert a percent to a decimal?

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What is the simplest form of any matter called?

A

Element

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What are the parts of an atom?

A

Electron
Proton
Neutron

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What makes up the nucleus of an atom?

A

Protons and neutrons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

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

A

Quarks

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

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

A

1,836 times greater

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

What are valence electrons?

A

The electrons in the outer most orbit or shell of atoms

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

How many valence electrons does a conductor generally have?

A

One or two

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

How is the atomic number of an element derived from?

A

The number of protons in the nucleus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

What is the primary source of electrical power?

A

The flow of electrons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

How many electrons can the valence ring hold?

A

8 electrons

31
Q

What happens when a conductor is heated?

A

The resistance goes up

32
Q

What causes the flow of electrons?

A

Potential difference
External forces applied
Friction
Chemical
Heat
Pressure
Light
Magnetism

33
Q

What is electromotive force?

A

EMF
voltage-E
A potential difference in electron charges

34
Q

What is current?

A

Ampere
I
Intensity of Electrical flow

35
Q

What is voltage?

A

E
Electromotive force
Electrical pressure

36
Q

What is resistance?

A

R
Ohms
Opposition to the current flow

37
Q

What is power?

A

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

38
Q

What is coulombs?

A

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

39
Q

How many feet in a mile?

A

5280 ft

40
Q

What does the prefix kilo mean?

A

1000
One thousand

41
Q

What is ohms law?

A

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

42
Q

What system of measurement does most of the world use?

A

Metric

43
Q

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

A

Thermocouple

44
Q

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

A

Neon, argon, mercury vapor

45
Q

What is the thermoelectricity process?

A

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

46
Q

What happens when you tie a knot in fiber rope?

A

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

47
Q

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

A

Splice
85-95% efficiency

48
Q

How much does a bowline knot reduce rope strength?

A

25%

49
Q

How much does a hitch reduce the WLL of rope?

A

25-35%

50
Q

How do you identify the lay of a wire rope?

A

The direction the rope strands are twisted

51
Q

What are the 4 common lays for wire rope?

A

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

52
Q

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

A

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

53
Q

What makes wire rope more flexible?

A

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

54
Q

What is the advantage of seal stranded wire rope?

A

It is the least susceptible to wear

55
Q

When does wire rope need to be replaced?

A

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

56
Q

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

A

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

57
Q

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

A

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

58
Q

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

A

Electrostatic charge and potential difference between the tower and body

59
Q

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

A

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

60
Q

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

A

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

61
Q

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

A

Operator’s manual

62
Q

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

A

Centered over the trailer axles

63
Q

What is the term for a potentially hazardous situation?

A

Warning

64
Q

What is the term for an imminent hazardous situation?

A

Danger

65
Q

Who should conduct a job briefing?

A

The employee in charge of the work to be done

66
Q

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

A

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

67
Q

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

A

No

68
Q

What information must be on the MSDS?

A

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

69
Q

What is the purpose of hazard communication standard?

A

To control chemical exposure on the job
Issued by OSHA

70
Q

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

A

Carcinogens cause cancer
Exposure to hazardous chemicals

71
Q

What class of hard hat is used by electrical workers?

A

Class E

72
Q

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

A

6 months

73
Q

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

A

600 volts

Apprentice 1-1 through 1-3 (3 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions