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CELE LOOKSFAM > Looksfam - Terms > Flashcards

Looksfam - Terms Flashcards

1
Q

Device mounted on a fixed support (permanent signs) or portable support (temporary signs) whereby a specific message is conveyed by means of words or symbols placed or erected for the purpose of regulating, warning, or guiding traffic.

a. Traffic Signs
b. Regulatory Signs
c. Warning Signs
d. Guide Signs

A

a. Traffic Signs

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2
Q

Signs that inform road users of the traffic laws and regulations which is disregarded will constitute an offense.

a. Traffic Signs
b. Regulatory Signs
c. Warning Signs
d. Guide Signs

A

b. Regulatory Signs

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3
Q

Signs that instruct road users to meet certain traffic rule requirements on road condition.

a. Traffic Signs
b. Warning Signs
c. Regulatory Signs
d. Special Instruction Signs

A

d. Special Instruction Signs

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4
Q

Signs which warn road users of condition on or adjacent to the road maybe unexpected or hazardous.

a. Roadwork Signs
b. Warning Signs
c. Regulatory Signs
d. Special Instruction Signs

A

b. Warning Signs

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5
Q

Signs which warn or advise temporary hazardous conditions that could endanger road users, or the men and equipment engaged on roadworks.

a. Roadwork Signs
b. Warning Signs
c. Regulatory Signs
d. Special Instruction Signs

A

a. Roadwork Signs

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6
Q

Signs which provide means of displaying essential traffic information on wide multi-lane roads, where some degree of lane use control is required or where side of road CLEARANCE is insufficient to accommodate a roadside sign.

a. Guide Signs
b. Traffic Signs
c. Chevron Signs
d. Overhead Signs

A

d. Overhead Signs

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7
Q

Signs which inform and advise road users of directions, distances, routes, and the location of services for road users and point of interest.

a. Guide Signs
b. Traffic Signs
c. Chevron Signs
d. Overhead Signs

A

a. Guide Signs

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8
Q

Signs used to guide drivers through a change in HORIZONTAL alignment of the road.

a. Guide Signs
b. Traffic Signs
c. Chevron Signs
d. Crossroad Signs

A

c. Chevron Signs

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9
Q

Signs used for intersections

A

Crossroad Signs

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10
Q

Highway appurtenances designed to prevent vehicular penetration from the travel way to areas behind the barrier such as to minimize damage to impacting vehicles and their occupants, and to reduce the risk of injuries to pedestrians and workers.

A

Barriers

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11
Q

Light retro-reflecting devices mounted at the side of the roadway, in series, to indicate the roadway alignment.

A

Delineators

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12
Q

Warning devices used to supplement other controls and devices necessary to alert motorists of construction and maintenance activities or obstructions in the roadway

A

Flashing Lamps

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13
Q

Roadwork devices consisting of precast concrete sections, sandbag and others which may be used to guide traffic at the construction site

A

Temporary Curbing

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14
Q

Device used in place of rigid cones with a minimum of 450 mm by 50 mm wide with alternate bands of contrasting color as seen by approaching traffic for delineation of traffic.

A

Bollard

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15
Q

Means any traffic control device marked on the surface of the carriageway used to regulate traffic or to warn or guide road users

A

Road Markers

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16
Q

Regulatory Signs

Additional Information (height limit, speed limit)

A

Circle Signs

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17
Q

Give Way

Warning Signs

A

Equilateral Triangle Signs

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18
Q

Directional signs

Roadwork signs

Special purposes signs

Facility Information Signs

Instruction Signs

Guide Signs

Point of Interest Signs

A

Rectangle Signs

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19
Q

Stop signs

A

Octagon Signs

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20
Q

Pedestrian and school crossing signs

A

Pentagon Signs

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21
Q

No. of vehicles per unit distance, occupying a section of roadway at a given instant time

A

Density

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22
Q

The actual number of vehicles observed to pass a given point on the highway at a given time

A

Volume (more accurate than Density)

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23
Q

Rate at which vehicles pass a fixed point (veh/hour)

A

Flow

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24
Q

The maximum sustained 15-minute rate of flow, expressed in passenger cars per hour per lane, which can be accommodated by a uniform freeway segment under prevailing traffic and road conditions in one direction

A

Capacity

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25
Q

No. of vehicle moving in a specified direction on a given lane or roadway that pass a given point during specified unit time.

A

Traffic Volume

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26
Q

Maximum number of vehicles, which have a reasonable expectation of passing over a given section of a lane or a roadway in one direction or in both directions during one hour under prevailing road and traffic conditions.

A

Road Capacity

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27
Q

Ability of a roadway to accommodate traffic volume

Max no. of vehicles in a lane or a road that can pass a given point in unit time,

A

Traffic Capacity

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28
Q

Max no, of passenger that can pass a given point a lane or roadway during one are under the most ideal roadway and traffic conditions, which can possibly be attained

A

Basic Capacity

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29
Q

Max no. of cars that can pass a point during one hour under prevailing roadway & traffic conditions

A

Possible Capacity

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30
Q

Max no. of cars in one hour without traffic density being so great to cause any delay or hazard to the driver

A

Practical Capacity

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31
Q

Vehicle’s instantaneous speed at a specified location

A

Spot Speed

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32
Q

Vehicle’s average speed over a length of roadway at any time

Harmonic mean of speeds passing a point during a period of time;

A

Space Mean Speed

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33
Q

Average of spot speeds of all vehicles passing a point in a highway

A

Average Speed

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34
Q

Speed distribution of vehicles at a point on a roadway

Average of instantaneous speeds of observed vehicles at the spot

A

Time Mean Speed

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35
Q

allow slower travel for large vehicles such as large trucks or semi-trailer trucks, ascending a steep grade.

A

Climbing Lanes

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36
Q

the part of the main road that is used for passing other vehicles and is nearest the center of the road.

A

Overtaking Lane or Passing Lane

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37
Q

used to separate adjacent lines of traffic moving in the same direction.

A

Lane line

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38
Q

is expressed as a K value, which is the length of the vertical curve in meters for 1% change in grade

A

Vertical Curve

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39
Q

Messages are ____ in color.

A

White

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40
Q

Letters or numerals used on roads in urban areas shall be at least ____. On high speed highways, they must be at least ____.

A

2.5 m ; 5 m

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41
Q

Vertical distance or difference in elevation of contour lines

A

Contour Interval

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42
Q

Reaction time used for road safety.

A

2.5 seconds

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43
Q

Ideal capacity of a road

A

2000 veh/hr

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44
Q

Parabolas centered about the point of intersection of the vertical tangents they join

A

Vertical Curve

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45
Q

Primary consideration in the design of geometric cross section of highways, runways and taxiways

A

Drainage

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46
Q

Commonly identified as primary, secondary, and working control on the jobsite

A

Horizontal Control

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47
Q

Rule ____ is the guidelines regarding Personal Protective Equipment (PPE).

A

Rule 1080

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48
Q

Pavement markings shall only be applied or removed by this agency

A

DPWH

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49
Q

Based on the expression on the technical resolution of international water way congress, about how many percent of tide is guaranteed safe for the ships?

A

98 %

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50
Q

The difference between the actual travel time and a given segment of a transportation system and some ideal travel time for that given segment

A

Delay

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51
Q

Messages when painted on pavement should be limited to how many words only?

A

Three words or less

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52
Q

Written instructions detailing how the facility is to be constructed

A

Specifications

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53
Q

Pavement and Curb Markings

those laid in the direction of travel (center line, lane line, double yellow line, etc.)

A

Longitudinal Lines

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54
Q

Pavement and Curb Markings

those laid across the direction of travel (stop line, give way line, pedestrian crossing markings, etc.)

A

Transverse Lines

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55
Q

Pavement and Curb Markings

turn lines, parking bays, painted median islands, and Bus & PUJ Lane Lines

A

Other Lines

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56
Q

Pavement and Curb Markings

approach markings to islands and obstructions, markings on entrance and exit ramps, approach to railroad crossing, messages and symbols, and pavement arrows

A

Other Markings

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57
Q

Made to establish the horizontal and vertical positions of arbitrary points.

A

Control Survey

58
Q

Made to determine the length and direction of land lines and to establish the position of these lines on the ground.

A

Boundary Survey

59
Q

Made to gather data to produce a topographic map showing the configuration of the terrain and the location of natural and man-made objects.

A

Topographic Survey

60
Q

The survey of bodies of water made for the purpose of navigation, water supply, or sub-aqueous construction.

A

Hydrographic Survey

61
Q

Made to control, locate and map underground and surface works related to mining operations.

A

Mining Survey

62
Q

Made to lay out, locate and monitor public and private engineering works

A

Construction Survey

63
Q

Refers to those control, topographic, and construction surveys necessary for the location and construction of highways, railroads, canals, transmission lines, and pipelines.

A

Route Survey

64
Q

Made to utilize the principles of aerial photogrammetry, in which measurements made on photographs are used to determine the positions of photographed objects

A

Photogrammetric Survey

65
Q

generally involves imaging or “mapping” of regions of the sky using telescopes

A

Astronomical survey

66
Q

the correction to be applied to the latitude or departure of any course is to the +total correction in latitude or departure as the length/distance of the course is to the length/perimeter of the traverse.

A

Compass Rule (Bowditch Rule)

67
Q

the correction to be applied to the latitude or departure of any course is to the total correction in latitude or departure as the latitude or departure of that course is to the arithmetical sum of all the latitude or departure in the traverse without regards to sign.

A

Transit Rule

68
Q

Any structure built into the sea but not parallel to the coastline and includes any stage, stair, landing place, or other works connected therewith

A

Pier

69
Q

A place where ships may anchor or tie up for the purpose of shelter, repair, loading or discharge of cargo, or for other such purposes

A

Port

70
Q

A tower, building, or other type of structure designed to emit light from a system of lamps and lenses, and to serve as a navigational aid for maritime pilots at sea or inland waterways

A

Lighthouse

71
Q

A continuous structure built parallel to or along the margin of the sea or alongside riverbanks, canals, or waterways where vessels may lie alongside to receive or discharge cargo, embark or disembark passengers, or lie at rest

A

Wharf

72
Q

a navigable deep channel leading through a harbor or along a shoreline

A

Fairway or Waterway

73
Q

a natural submerged ridge, bank, or bar that consists of, or is covered by, sand or other unconsolidated material, and rises from the bed of a body of water to near the surface

A

Shoal

74
Q

a strait or narrow sea between two close landmasses

A

Channel

75
Q

The average height of the sea for all stages of the tide obtained from systematic observations of sea levels at equal intervals over a long period of time along a given coastline.

A

Mean Sea Level

76
Q

Datum line for design of port facilities in accordance with charts which is being used by Philippine Ports Authority.

A

Mean Lower Low Water (MLLW)

77
Q

Water level that guarantees about water depth for safety of the ships berthing on a certain ports and harbor below the MLLW should be?

A

0.15 – 0.40 m

78
Q

Ratio of wave height to its wavelength

A

Steepness

79
Q

The pressure against a vertical wall due to waves.

A

Clapotis

80
Q

The distance that the wind blows over the sea in generating the waves is known as:

A

Fetch

81
Q

Waves formed by moving ship or boats are called:

A

Wakes

82
Q

Waves under the influence of winds or storms which occur outside area of observation

A

Swells

83
Q

A very long-standing wave on a large but limited body of water generally occurring when a storm dies down after producing a wind tide

A

Seiche

84
Q

An instrument use to measure the intensity of wind.

A

Beufort’s Scale

85
Q

A wave at a point where the depth is equal to ½ of the wavelength or greater to be expressed in terms of the parameters of significant wave.

A

Deep Water Waves

86
Q

Waves which occur in water having a depth less than one half of the wavelength and the
influence of the bottom changes the form or orbital motion from circular to elliptical or near elliptical.

A

Shallow Water Waves

87
Q

A hypothetical wave having a wave height and period equal to average values of the wave height and period of the largest 1/3 of all waves in the train as counted in the order of greater wave height.

A

Significant Waves

88
Q

A maximum wave height and wave period of the maximum wave height in the wave train.

A

Highest Wave

89
Q

Waves which fall forward since the forward velocity of the crest particles exceeds the velocity of propagation of the wavelength L is less than 7 times the wave height (L < 7H)

A

Breaking waves

90
Q

Waves are formed by the frictional drag of wind across the water surface, this is a process of transferring energy from wind to water

A

Gravity Waves

91
Q

The regular periodic rise and fall of the surface of the seas, observable along their shores,

A

Tide

92
Q

When the lines connecting the earth with the sun and the moon form a right angle, that is the moon is in its quarters, then the actions of the moon and sun are subtractive, and the lowest tides of the month occur, this is called:

A

Neap Tides

93
Q

Known as falling tides

A

Ebb Tides

94
Q

In many parts of the world, the high waters reach their greatest height and the low waters at the least height, soon after the time of full moon and new moon. These tides are called:

A

Spring Tides

95
Q

Tides which occur only one high tide a day is called:

A

Diurnal tide

96
Q

The periodic rise and fall of sea level in response to the gravitational attraction of the sun and moon as modified by the earth’s rotation.

A

Astronomical Tide

97
Q

Owing to retardation of the tidal wave in the ocean by frictional force, as the earth revolves daily around its axis and as the tide tends to follow the direction of the moon, the highest tide for each location is not coincident with conjunction and opposition but occurs at some constant time after new and full moon. This interval which may amount to as much as two and a half days is known as;

A

Age of the Tides

98
Q

Layer of pavement which finally carries the load from the road

A

Sub-grade

99
Q

Part of road structure which is immediately above the sub-grade and composed of stone boulders or superior soil

A

Sub-base

100
Q

Component of the road structure which receives the traffic load and transfer it to the sub-grade.

The top surface of a road structure.

A

Base

101
Q

One or more layers of crushed aggregate, which are bonded by bituminous materials and a seal coat laid on top is called:

A

Surface dressing

102
Q

A 20mm thick premix bitumen layer over which is laid a seal coat

A

Water Bound Macadam

103
Q

A layer consisting of properly designed mix of course aggregate, fine aggregate, a filler and a bituminous binder:

A

asphaltic concrete

104
Q

The layer in a road pavement which provides resistance to wear and tear due to traffic

A

wearing course

105
Q

The layered structure placed over a soil sub-grade for forming road.

A

Pavement

106
Q

A mixture of bitumen, fine aggregate and filler in suitable proportion heated to about 200°C in special cookers and laid is called

A

Mastic Asphalt

107
Q

An application of hot bitumen material given to the old surface to provide adhesion to the old and new surface

A

Tack Coat

108
Q

A layer of stone chipping coat laid over a hot bitumen to make the surface water-proof

A

Prime Coat

109
Q

A very thin surface applied over a bituminous pavement to make it impervious.

A

Seal Coat

110
Q

The process of moving soil or rock from one location to another and processing it so that it meets construction requirements of location, elevation, density, and moisture content

A

Earthmoving

111
Q

Ability of a soil to support the weight of vehicles under repeated traffic

A

Trafficability

112
Q

Measure of the difficulty in excavating and loading of soil

A

Loadability

113
Q

Star-shaped figures

A

Polygram

114
Q

Sum of Two Angles = 360

A

Conjugate Angles
Explementary

115
Q

For any cyclic quadrilateral, the product of the diagonals equals the sum of the products of the opposite sides

A

Ptolemy’s Theorem

116
Q

Curves that intersect each curve of the family perpendicularly

A

Orthogonal

117
Q

A set of points together with line segments joining the points in pairs

A

Graph/Network

118
Q

A point is a node if there is at least one path (line) starting from it or reaching it. Nodes are named by capital letters of English alphabet.

A

Nodes in a graph

119
Q

The line segment (path) joining two nodes is an arc

A

Arcs in a graph

120
Q

Line segment joining any two non-adjacent vertices

A

Diagonal

121
Q

Distance between two parallel sides of a quadrilateral

A

Altitude

122
Q

An area bounded by arcs (including outside) is called a region

A

Region

123
Q

This should always be shown on site plans for orientation purposes. Displaying it prominently is the standard practice

A

North direction

124
Q

Line intersecting the curve in at least 2 points

A

Secant Line

125
Q

A line that passes through the centroid, orthocenter, and circumcenter of a triangle

(Dist.CENTROID TO ORTHOCENTER = 2x Dist.CENTROID TO CIRCUMCENTER)

A

Euler’s Line

126
Q

Richter Scale (based on intensity)

A

R = log(I/Io)

127
Q

Amount which a willing buyer will pay to a willing seller for the property where each has equal advantage and is under no compulsion to buy and sell.

A

Market Value

128
Q

A subjective assessment of the expected return on an investment at a given risk

A

Utility Value

129
Q

Asset’s worth when it is deemed no longer usable

A

Junk Value (Salvage, Scrap, Residual, Break-Up Value)

130
Q

It is anything that can cause harm

A

Hazard

131
Q

It is the probability of harm actually being done

A

Risk

132
Q

It is a violation of an accepted safe procedure which could permit the occurrence of an accident.

A

Unsafe Act

133
Q

A hazardous physical condition or circumstance which could directly permit the occurrence of an accident.

Circumstances or deviation from standard condition which could permit an occurrence of accident or incident.

A

Unsafe Condition

134
Q

Refers to the physical or environmental conditions of work or employment, which substantially comply with the provisions of this standard.

A

Safety

134
Q

It is the recognition and control of hazards in the workplace

A

Occupational Safety and Health

135
Q

Looking at the possibility of injury or harm occurring to a person if exposed to a hazard.

A

Risk assessment

136
Q

Recognizing of things which may cause injury or harm to a person.

A

Hazard Identification

137
Q

Introduction of measures which will eliminate or reduce the risk of a person being exposed to a hazard.

A

Risk Control

138
Q

Worst condition which should be considered in coastal engineering

A

Unusually high sea level with severe wave action

139
Q

Single most important environmental factor in the broad field of coastal engineering

A

Coastal erosion

140
Q

Probability of a mechanism that will function satisfactorily. If the mechanism is to operate intermittently and briefly, it also refers to performance on a given occasion. If the mechanism is to operate continuously, it refers to its performance for a specific period of time.

A

Reliability

141
Q

Speed limit appropriate on lower standard expressways.

A

80 or 90 kph

CELE LOOKSFAM (10 decks)

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