2021 NABTEB GCE Agric Practical Answers [10th November]

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NABTEB NOV/DEC GCE 2021 FREE AGRICULTURAL PRACTICAL (AGRIC) QUESTION AND ANSWER ROOM

Wednesday 10th November, 2021
Paper II: Practical – Agricultural Science
09:00am – 11:00am

NABTEB NOV/DEC GCE AGRIC PRACTICAL ANSWERS 2021:


(1a)
Specimen I - Mango Fruit
Specimen J - Orange Fruit
Specimen K - Maize Grain

(1b)
a - Epicarp
b - Mesocarp
c - Cotyledon
d - Seed

(1c)
I - Sexual Propagation (seed)
J - Sexual Propagation (seed)
K - Sexual Propagation (seed)

(1d)
Pest - Aphids
Disease - Gummosis

(1e)
(i) It is used for animal feed
(ii) It is a source of carbohydrate
(iii) It serves as raw materials for industries
===========================

(2a)
Soil profile

(2b)
A - Crops
B - Organic materials
C - Topsoil
D - Subsoil
E - Parent materials
F - Bedrock

(2c)
Topsoil

(2d)
Topsoil

(2e)
Bedrock

(2f)
Subsoil
===========================

(3a)
Incubator

(3bi)
(i) Heat source
(ii) Control unit
(iii) Insulator
(iv) Thermometer

(3bii)
(i) Heat source: It provides heat
(ii) Control unit: It regulates the temperature of the incubator
(iii) Insulator: To prevent heat loss
(iv) Thermometer: To detect the degree of hotness and coldness of a machine

(3c)
(i) Setting eggs uniformly in the tray
(ii) Timely and regular turning of eggs
(iii) Proper handling of the eggs
(iv) Setting of eggs at the same time
(v) Select eggs of the same sizes

(3d)
(i) Temperature range of 37°C - 39°C
(ii) Relative humidity of 50-70%, an optimum level being 60%
===========================

(4a)
Disc plough

(4b)
A - Top link connection
B - Coupling point
C - Disc scraper
D - Disc
E - Furrow wheel
F - Beam cap
G - Beam

(4c)
A - It connects all the discs
C - It helps to remove soil or mud that cling to the disc
D - It inverts the soil
E - It provides a balancing effect for the plough as it supports both the vertical and side thrust

(4d)
It is used for tilling and moulding heavy soil

(4e)
(i) Replace worn out parts
(ii) Keep the implement clean and store in a cool, dry place.


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