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LOOKS FAM (RANDOM) [wag aaralin] > MATH AND ESAS > Flashcards

MATH AND ESAS Flashcards

1
Q

Circle with same center but unequal radii

A

Concentric

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2
Q

Cylinder with elliptical cross section

A

Cylindroid

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3
Q

Line segment joining two point

A

Chord

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4
Q

Cylinder Container: Open Top

A

Radius = Height

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5
Q

Cylindrical Container: Closed

A

2Radius = Height

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6
Q

Limacon

A

r = a+bcosθ

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7
Q

Cardioid

A

r = a±cosθ

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8
Q

Lemniscate

A

r² = a²cosθ

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9
Q

Rose

A

r = a sin nθ and r = a cos nθ

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10
Q

Special Rule of Addition of Probability: P (A ∪ B) = P(A) + P(B)

A

Mutually Exclusive Event

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11
Q

Special Rule of Multiplication: P (A ∩ B) = P(A) ∙ P(B)

A

Independent Events

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12
Q

General Rule of Distribution

A

Bayesian Event

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13
Q

Normal Distribution

A

Empirical

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14
Q

Bell Shaped Distribution: P(1) - P(-1)

A

68% of Data

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15
Q

Bell Shaped Distribution: P(2) - P(-2)

A

95% of Data

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16
Q

Bell Shaped Distribution: P(3) - P(-3)

A

99.7% of Data

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17
Q

Distance of Point from Y-Axis

A

Abscissa

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18
Q

Distance of Point From x-axis

A

ordinate

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19
Q

Iceberg with density of 917 kg/m3: at what volume will it be visible

A

8.3%

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20
Q

Iceberg with density of 917 kg/m3: at what volume will it submerge

A

91.7%

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21
Q

Human Body in freshwater with density of 980 kg/m3: at what % of body will it float?

A

2%

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22
Q

Human Body in freshwater with density of 980 kg/m3: at what % of body will it submerge?

A

98%

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23
Q

A bar of uniform cross section is subject to a uniaxial tension and develops a strain in the direction of the force of 1/800. Calculate the change of volume per unit volume. Assume μ = 1/3

A

1/2400 inc

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24
Q

A bar of uniform cross section is subject to a uniaxial compression and develops a strain in the direction of the force of 1/800. Calculate the change of volume per unit volume. Assume μ = 1/3

A

1/2400 dec

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25
Q

In a spreadsheet (EXCEL), the number in cell A2 is set to 2. Then cell B2 is set to A2*4/$A$2, where $ indicates the absolute cell address. This formula is copied into cells C2 and D2. What is the value shown in cell D2?

A

16

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26
Q

Spreadsheet Excel: A3 set to 3

A

24

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27
Q

Not a method of truss analysis

A

Maxwell

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28
Q

Fluid velocity measurement

A

Pitot Tube

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29
Q

Air pressure measuring instrument

A

Barometer

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30
Q

Measure Pressure

A

Manometer

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31
Q

Measure Density

A

Pycnometer

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32
Q

Pressure of head of a liquid

A

PIezometer

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33
Q

Flow rate through a pipe

A

Venturi meter

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34
Q

Measure relative humidity

A

Hygrometer

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35
Q

Measure specific gravity

A

Hydrometer

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36
Q

Pressure measuring device today

A

Bourdon Tube Gauge

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37
Q

Straight Line Path

A

Laminar Flow

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38
Q

Random Path

A

Turbulent Flow

39
Q

Combination of Laminar and Turbulent

A

Critical

40
Q

Laminar FLow, Vave Fraction of Vmax in a Pipe

A

1/2

41
Q

Laminar FLow, Vave Fraction of Vmax in a Parallel Plate

A

2/3

42
Q

Moment Diagram: No external load

A

Linear

43
Q

Moment Diagram: Uniform Distributed Load

A

Parabolic

44
Q

Moment Diagram: Concentrated load at midpoint

A

Triangle

45
Q

Maximum bending moment for simply supported beam with udl over entire length of beam if W = weight of beam and L = length of beam, is:

A

WL/8

46
Q

Maximum bending moment for simply supported beam with udl over concentrated load of beam if W = weight of beam and L = length of beam, is:

A

WL/4

47
Q

Maximum bending moment for simply supported beam with udl over uniform distributed load of beam if W = weight of beam and L = length of beam, is:

A

WL^2/8

48
Q

Waves: Bending and spreading around corners

A

Diffraction

49
Q

Waves: one medium to another

A

Refraction

50
Q

Waves: wave bounces back after hitting a surface/boundary

A

Reflection

51
Q

Waves: Overlapping of two or more waves

A

Interference

52
Q

Heat absorbed

A

Endo

53
Q

Heat Released

A

Exo

54
Q

Transferring of Electrons

A

Ionic

55
Q

Sharing of Electrons

A

Covalent

56
Q

Sharing of free electrons

A

Metallic

57
Q

Weak type of chemical bond

A

Van Der Waals

58
Q

Available for Service but is not in operation

A

Cold Reserve

59
Q

Operation but is not in service

A

Hot Reserve

60
Q

Connected to bus and is ready to take a load

A

Spinning Reserve

61
Q

Alerts: Low Contingency

A

Yellow

62
Q

Alerts: Contingency reserve is zero

A

Red

63
Q

Alerts: Tropical Disturbance 24hours

A

Blue

64
Q

Alerts: Peace and Order

A

Security

65
Q

Alerts: Load shedding in the next 30 minutes

A

Demand Control Immense Warning

66
Q

Strengths: Highest ordinate

A

Ultimate

67
Q

Strengths: Rupture Ordinate

A

Rupture

68
Q

Strengths: Withstand without permanent deformation

A

Yield

69
Q

Strengths: Maximum Strength

A

Tensile

70
Q

Steel Used for drills, cutting tools

A

High Carbon Steel

71
Q

Steel Used for gears, axles

A

Medium Carbon Steel

72
Q

Steel used for structural shapes, wires, screw machine parts

A

Low carbon steel

73
Q

Rules in Designing (Significant Changes)

A

Wiring Rule, Installation Rule and Manufacturing Rule

74
Q

Big Persons in EE Industry: Qualified to become PRC Commissioner

A

PEE

75
Q

Big Persons in EE Industry: Qualified to become ERC Commissioner

A

Lawyer

76
Q

Big Persons in EE Industry: Current PRC Commissioner

A

Charito A. Zamora

77
Q

Big Persons in EE Industry: Current Chairman of BEE

A

Francis Mapile

78
Q

PRBEE - RESOLUTION NO. ___________________ SERIES OF 2017

A

18

79
Q

PRC - Created Under

A

PD 223

80
Q

PEP - PERSUANT TO

A

RA 7683

81
Q

CPD POINTS

A

15

82
Q

Continuous Load, Max current continue for

A

3 hours or more

83
Q

Minimum Size of Conductor for lighting

A

2.0mm2

84
Q

Minimum Size Connected to 40A CKT

A

5.5mm2

85
Q

PEC 2009 IS BASED ON

A

NEC 2005

86
Q

PEC 2017 IS BASED ON

A

NEC 2017

87
Q

Longer Axis of Ellipse is called

A

PROLATE

88
Q

Shorter Axis of Ellipse is called

A

OBLATE

89
Q

Find the values of z such that e^4z = i

A

(π/8 )i+(kπ/2) i

90
Q

e^iz is equal to

A

e^-3√3

91
Q

Sine Angles at maximum ratio of sides

A

1:1:1

92
Q

What is log(3-2i)

A

0.5570 - j0.2554

93
Q

Tetrahedron Volume is

A

√2/12 b^3

94
Q

Tetrahedron Area is

A

√3 b^2

LOOKS FAM (RANDOM) [wag aaralin] (1 decks)

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