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LALE > Technology and Materials > Flashcards

Technology and Materials Flashcards

1
Q

Engineering instrument used to measure vertical and horizontal angles

A

Theodolite

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2
Q

Picket fence material

A

Plank

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3
Q

Post that supports / maintain wooden post

A

Sister post

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4
Q

material not suitable for tennis court

A

Grass

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5
Q

Types of welding

A

Fusion and pressure welding

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6
Q

Lighting fixtures that turn on/off based on the ambient of light

A

Photoelectric control (photocell)

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7
Q

% of shade covered by tree canopy

A

Canopy cover

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8
Q

Triangular UV treated shade fabric

A

Shade sail

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9
Q

Mountable curbs primarily cater

A

Vehicles

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10
Q

Process used in steel production

A

Bessemer process

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11
Q

Minimum archery range

A

50 yards / 45.7 mts

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12
Q

Standard depth for wet play area

A

300mm

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13
Q

Used to drill holes for posts, commonly attached to tractors

A

Post Hole Auger

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14
Q

Purpose of Allen Key Machine Screw

A

Against theft

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15
Q

Instrument used to measure angle of slope

A

(In)clinometer

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16
Q

Joint that resembles back/ rear of animal

A

Dovetail joint

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17
Q

Retaining wall failure

A

Sliding, overturning

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18
Q

Lamp used for roadways;
Produces yellow color

A

Sodium-vapor

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19
Q

Good characteristics of incandescent lamp

A

Good color rendition

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20
Q

Lifespan of flourescent lamp

A

10,000-15,000 hrs

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21
Q

Metal alloys of bronze

A

Copper and tin

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22
Q

Greenish layer that naturally forms on copper when exposed to air

A

Patina

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23
Q

Medium used to outline tennis court borders and other markings

A

Paint

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24
Q

Added to ponds/ lakes in golf courses to enhance visual quality of water

A

Blue dye

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25
Q

Filter used in koi ponds

A

Biofilter

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26
Q

Material NOT advisable for posts reaching up to 5 mts

A

Plastic

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27
Q

Most expensive material for wood deck

A

Real wood
(Not composite, reconstituted or plastic)

28
Q

Tempered glass characteristic

A

Shatters into small pieces

29
Q

Low concrete post

A

Bollard

30
Q

Metal used to draw intricate patterns on fences

A

Wrought iron

31
Q

Multi-purpose growing medium made out of coconut husk

A

Coco peat

32
Q

Bamboo/ tiki torch

A

Sulo torch

33
Q

Unsuitable material not advisable near seaside

A

Uncoated steel
(Not wood, galvanized steel)

34
Q

Edge restraint commonly used in the PH

A

Concrete

35
Q

material manufactured from thin layers (plies) of wood veneer that are glued together

A

Plywood

36
Q

Integral concrete characteristic

A

Color lasts longer

37
Q

Location of pump to pool

A

As near as possible

38
Q

Measure of luminous flux (quantity of light energy emitted per second in all directions)

A

Lumens

39
Q

Unit of light INTENSITY

A

Candela (Candlepower CP)

40
Q

Measure of Luminance

A

Footcandle (1 sq ft) / Lux (1 sqm)

41
Q

Types of fusion welding

A

Gas Flame
Electric-arc

42
Q
  • Weakest method of joining metals
  • Uses solders (alloys of tin and lead)
A

Soldering

43
Q

Type of soldering that uses higher temperatures and stronger + higher melting alloys

A

Brazing

44
Q
  • Alloy of copper (Cu) and tin (Sn)
  • Rizal Monument and other statues
A

Bronze

45
Q
  • Alloy of copper (Cu) and zinc (Zn)
  • Reacts with other metals
A

Brass

46
Q

Used as a protective coating (galvanizing)

A

Zinc

47
Q

Impure form of iron; commercial form in which iron is first prepared

A

Crude / Pig Iron

48
Q

Galvanizing method
- chemical treatment with electrochemical reaction
- allows steel to bond with zinc

A

Hot-dip Galvanizing

49
Q

Gneiss
Marble
Quartzite
Slate

A

Metamorphic

50
Q

Shale
Coal
Limestone
Sandstone

A

Sedimentary

51
Q

Granite
Quartz
Obsidian
Pumice
Obsidian

A

Igneous

52
Q

Water content of the soil when the remainder of water has been removed by gravity

A

Field Capacity

53
Q

The minimum amount of water in the soil that the plant requires not to wilt; exceeding will kill the plant

A

Permanent wilting point

54
Q

Refers to the amount of clay particles in a soil sample

A

Colloidal Content

55
Q

Moisture content at which a soil changes from a liquid to a plastic state

A

Liquid Limit (LL)

56
Q

Moisture content at which a fine-grained soil can no longer be remolded without cracking (crumble)

A

Plastic Limit (PL)

57
Q

Water content at which further loss of moisture will not cause a decrease in volume

A

Shrinkage Limit

58
Q

The study of the origin and formation of soil (from bedrock to horizons)

A

Pedogenesis

59
Q

Combination of geosynthetic components; has a
- core (void space for water)
- geotextile filter (prevents soil from entering voids)

A

Geocomposites

60
Q

3D prefabricated polymeric system; voids are filled for stabilization

A

Geocells

61
Q

Impermeable polymeric sheets used for pond lining and waterproofing

A

Geomembranes

62
Q

Woven or nonwoven fabric used for reinforcement, separation, filtration, and in-plane drainage (permeable to water and gases)

A

Geotextiles

63
Q
  • Main horizonal support (beam) that supports smaller beams
  • Carries the floor joist and flooring
A

Girder (Suleras)

64
Q
  • Recently formed soils that lack well-developed horizons
  • Recently deposited sediments that will develop into another soil type
A

Entisol

65
Q

Heavy clay soils that expand and contract due to moisture

A

Vertisol

66
Q

Added to slow setting time of concrete

A

Gypsum

67
Q

Added to improve concrete plasticity and workability; faster curing time

A

Lime

LALE (9 decks)

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