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PAES > PNS/BAFS PABES 270:2019 > Flashcards

PNS/BAFS PABES 270:2019 Flashcards

(54 cards)

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1
Q

PNS/BAFS PABES 270:2019

A

Agricultural Infrastructures – Silo

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2
Q

movement of air through stored grains for purposes other than drying

A

aeration

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3
Q

provides access inside the silo which may be located at the roof or at the wall

A

access door

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4
Q

angle of the material when the grains held starts to move

A

angle of friction

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5
Q

floor located at the basement of flat bottom silos

A

base flooring

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6
Q

panel where all the controls are located, with or without mimic board

A

control panel

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7
Q

height of the vertical-walled segment of silo

A

eave height

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8
Q

mechanism that facilitates vertical movement of grains

A

elevator

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9
Q

equipment for receiving grains at the bottom of a bucket elevator

A

elevator boot

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10
Q

height of grains at level condition

A

equivalent height

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11
Q

action of releasing a toxic chemical in the gaseous state to control a targeted pest

A

fumigation

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12
Q

milled or unmilled, seeds or fruits of various food plants more specifically the cereal grasses

A

grain

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13
Q

grain receiving area which may consist of elevator and other accessories such as weighing and cleaning machines

A

headhouse
dumping house
intake house

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14
Q

sloping, walled structure for discharging grains

A

hopper

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15
Q

structure above the silo bins that houses conveyor systems for grain distribution

A

load distribution system

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16
Q

board where the flow of grains at different points of the system at any time will be
reflected

A

mimic board

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17
Q

distance between the horizontal supporting plane surface and the horizontal plane
touching the uppermost part of the silo structure

A

overall height

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18
Q

distance between the vertical planes at the right angles to the median plane of the silo
structure and touching its front and rear extremities

A

overall length

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19
Q

distance between the vertical planes parallel to the median plane of the machine, each
plane touching the outermost point of the silo structure on its respective side

A

overall width

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20
Q

overall height of the silo structure from the topmost structure of the roof to the ground

A

peak height

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21
Q

unit consisting of upright containers used for storage and handling of grains in bulk
and provided with necessary equipment and accessories

A

silo

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22
Q

inside diameter of the largest inscribed circle within the silo cross-section

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A

silo diameter

23
Q

surface at the bottom of the silo where the grains lie

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A

silo flooring

24
Q

aspect ratio
ratio of the equivalent height (h) to the silo diameter (d), (h:d)

25
passageway of grains to be loaded into the silo
spout
26
vertical frame fastened to the silo walls which carries the loads
stiffener
27
portion of the silo where grains are stored
storage block
28
intersection of the hopper and the vertical wall, for hopper bottom type silos
transition
29
structure below or at ground level that houses the collection equipment
unloading system
30
volume contained in the cylindrical portion only of the silo or the volume contained in both the cylindrical portion and the conical section within the roof space
volumetric capacity
31
one level of the storage block of silo
wall ring
32
process of sealing the connections between sheets and other parts such as caulking
weather proofing
33
connected to the sidewall stiffeners to provide continuous circular reinforcement around the silo
wind rings
34
Classification
A. Slenderness 1. Retaining 2. Squat 3. Intermediate B. Other Classifications 1. Wall Material / Corrugated, Plain 2. Discharge Mechanism / Mechanical, Gravitational 3. Silo Bottom / Flat bottom, Hopper bottom 4. Control / Manual, Automatic 5. Cross-section / Round, Square, Rectangular
35
A silo that has an aspect ratio greater than 0.4 and less than or equal to 1 (0.4 < h/d ≤ 1.0). If the silo has an aspect ratio less than or equal to 0.4 (h/d ≤ 0.4) and has a hopper, it is also classified as ???.
squat
36
A silo that has an aspect ratio greater than 1.0 and less than 2.0. (1.0 < h/d < 2.0)
Intermediate
37
A silo that has an aspect ratio greater than or equal to 2.0 (h/d ≥ 2.0)
Slender
38
General All metal materials for construction shall be ???. All silo parts shall be ???. All parts in contact with the grains shall ???. The minimum design earthquake load shall be according to ???
corrosion resistant hot-dipped galvanized not be painted Section 8 Earthquake Loads of the National Structural Code of the Philippines (NSCP)
39
Base flooring It shall be made of ???. Side walls in the basement shall also be ???.
reinforced waterproofed concrete waterproofed
40
Silo flooring ??? The net area of perforations shall be at least ??? of the gross floor area. The perforations may be round or slatted. ??? The slope shall be designed to be suitable for easy gravity flow of the intended grains to be stored. Angle of the sloping sides shall be at least ??? greater than the grain’s angle of friction.
Flat bottom 15 percent Hopper bottom 10 degrees
41
??? shall be used to join wall materials.
Rivets or bolts and nuts
42
??? shall be done to prevent leaks.
Weather proofing
43
Walls should be installed with ???. Ladders shall be installed ???.
stiffeners inside and outside of the wall
44
The ladder shall conform to the requirements of ???
OSHS Rule 1067 ASAE S412.1:1997
45
Equipment and Accessories
1. Conveyors 2. Control Panel 3. Temperature and Relative Humidity (RH) Measurement 4. Grain Moisture Content Measurement 5. Aeration Equipment 6. Fumigation Equipment 7. Other Equipment and Accessories
46
Equipment and Accessories Conveyors Classification
1. Belt 2. Screw 3. Chain 4. Pneumatic 5. Bucket Elevator
47
??? consist of a flat continuous belt in tension that is positioned between rollers driven by pulleys with intermittently spaced idlers for support.
Belt conveyors
48
A ??? is made up of a continuous helix that is mounted on a pipe in a fixed trough. Movement of the material is facilitated by the rotation of the screw. The conveyor may have multiple feed points as long as the designed allowable loading is not exceeded. The conveyor may also have multiple discharge points.
screw conveyor
49
??? consist of a continuous loop of chains between two sprockets. A take-up device which is connected to the sprocket opposite to the drive sprocket is responsible for proper tensioning of the chain. The materials are conveyed using some type of attachment such as pans.
Chain conveyors
50
??? use high pressure air to transport grains in a totally enclosed system. It consists of the high pressure air source, a feed device, a conveying pipeline, and a receptacle for release of transported material and carrier gas.
Pneumatic conveyors
51
??? are ideally used for the vertical conveyance of loose grains. It consists of several buckets that are carried by either belt or chain elevators.
Bucket elevators
52
If bucket elevator is more than 6m, a ??? shall be provided.
support tower
53
The temperature and RH throughout the silo shall be measured using ???, placed at different locations inside the silo.
calibrated temp and RH sensors
54
A silo that has an aspect ratio less than or equal to 0.4 (h/d ≤ 0.4) with a flat bottom
Retaining

PAES (19 decks)

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