(PAES 419:2015) WAREHOUSE FOR BAG TYPE STORAGE OF GRAINS

Question 1

In this type, six blocks are formed to make standard stack of 9.14m x 6m size. Each block is
of the size 6m x 1.5m. In the block, one layer is put lengthwise and other breath-wise.

Answer 1

Block stacking

Question 2

Bagged grains with 14% moisture content or lower could be piled in Chinese method. Sacks
are piled side by side and one on top of the other for appropriate pest control measures

Answer 2

Chinese method

Question 3

Bagged grains with moisture content 14.1% to 15% are to be piled in this method. This
system of stacking provides ventilation space between bags and allows circulation of
convective air currents that provide a medium for heat dissipation

Answer 3

Japanese method

Question 4

In this type bags are laid in complete length-wise or breath-wise tiers in alternate layers
systematically

Answer 4

Criss-cross stacking

Question 5

The height of stacks shall not exceed the height of the walls and a space of at
least __ shall be allowed between the tops of the stacks and roof frames.

Answer 5

1 m

Question 6

Sacks made of woven polypropylene have a tendency to slide on each other,
and therefore shall not be stacked more than __ high.

Answer 6

3m

Question 7

Jute sacks bind together better, and
maybe stacked up to __ above the floor

Answer 7

6 m

Question 8

Recommended stack heights in layers for wheat, barley and corn

Answer 8

18

Question 9

Maximum stack height inlayers for paddy

Answer 9

16

Question 10

Maximum stack height inlayers for rice

Answer 10

16

Question 11

Recommended stack heights for wheat,barley, and corn

Answer 11

4.57m

Question 12

Recommended stack heights for paddy

Answer 12

6m

Question 13

Recommended stack heights for rice

Answer 13

5.5m

Question 14

Number of bags for paddy

Answer 14

10

Question 15

Number of bags for rice

Answer 15

15

Question 16

Number of bags for corn

Answer 16

12

Question 17

A central pathway should be __ wide or not less than ___ wider than the
width of the widest forklift trucks that are being used simultaneously during warehouse
operation.

Answer 17

2 m, 1m

Question 18

Space between piles shall be __ wide.

Answer 18

1m

Question 19

Warehouse dimensions for 10,000bags

Answer 19

10mx30m

Question 20

Warehouse dimensions for 30,000bags

Answer 20

16mx48m

Question 21

Warehouse dimensions for 50,000bags

Answer 21

20mx60m

Question 22

Warehouse dimensions for 100,000bags

Answer 22

25mx78m

Question 23

Warehouse dimensions for 500,000bags

Answer 23

75mx142m

Question 24

The recommended height between the eaves line and the floor is __ and __ between the
eaves line and the apex.

Answer 24

7 m,2.5 m

Question 25

A standard roof truss of __ span
(or larger) should be used

Answer 25

14.5m

Question 26

If there is a forklift or mechanical handling equipment to be used, the central
pathway should be designed with a width of not less than ___ wider than the width of the
widest vehicle loaded.

Answer 26

0.6m

Question 27

The long axes of the warehouses should be oriented __ or sited across the
prevailing wind.

Answer 27

East-West

Question 28

wooden or plastic (food grade) frames used on concrete floors for stacking bags to prevent
direct contact between the grains and the floor

Answer 28

dunnage
pallet
“tarima”

Question 29

process of using chemicals to control insects in grains in a form of fumes

Answer 29

fumigation

Question 30

moving of air through stored grains at low airflow rates between 0.05 – 2.28 cubic meter per
minute per ton for purposes other than drying, to maintain or improve its quality

Answer 30

aeration