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Past Questions β€” 2021

LDE (other) β€’ 2021 β€’ Paper-I

The time required for spinning silk to make a cocoon from beginning to end is usually about:

A) 12 hours
B) 24 hours
C) 48 hours
D) 56 hours
This is the standard sericulture/agronomic practice for the condition stated.
LDE (other) β€’ 2021 β€’ Paper-I

Wooden or bamboo rearing trays are arranged in tiers on rearing stand for rearing and is called:

A) Floor rearing
B) Tray rearing
C) Self rearing
D) Shoot rearing
This is the standard sericulture/agronomic practice for the condition stated.
LDE (other) β€’ 2021 β€’ Paper-I

The male larva has a single median opening at the junction of the 8th and 9th segments called opening of __________:

A) Herold’s gland
B) Receptaculum Seminis
C) Ishiwata’s foreglands
D) Ishiwata’s hindglands
This is the standard sericulture/agronomic practice for the condition stated.
LDE (other) β€’ 2021 β€’ Paper-I

Regular irrigation at an interval of __________ days is ideal for mulberry plant:

A) 2 – 3
B) 3 – 5
C) 5 – 6
D) 8 – 10
This follows the standard mulberry/sericulture cultivation recommendation for the stated condition.
LDE (other) β€’ 2021 β€’ Paper-I

How many times required bed cleaning during the 2nd instar:

A) one
B) two
C) three
D) four
This is the standard sericulture/agronomic practice for the condition stated.
LDE (other) β€’ 2021 β€’ Paper-I

In row system of planting, recommended dose of NPK(Kg/ha) in irrigated areas:

A) 50 : 50 : 50
B) 100 : 50 : 50
C) 200 : 100 : 100
D) 300 : 120 : 120
This follows the standard mulberry/sericulture cultivation recommendation for the stated condition.
LDE (other) β€’ 2021 β€’ Paper-I

The entire branch of mulberry plant is harvested and used to feed silkworms. This method is known as:

A) Branch cutting
B) Whole shoot harvest
C) Leaf picking
D) Root cutting
Harvesting the whole branch for feeding is termed whole-shoot harvest.
LDE (other) β€’ 2021 β€’ Paper-I

Mulberry can be grown in a rainfall rage of:

A) 150mm – 500mm
B) 200mm – 750mm
C) 400mm – 1500mm
D) 600mm – 2500mm
This is the standard sericulture/agronomic practice for the condition stated.
LDE (other) β€’ 2021 β€’ Paper-I

In leaf picking method, the first bottom pruning has to be taken up at a height of __________ from ground level:

A) 5 – 10 cm
B) 10 – 15 cm
C) 15 – 20 cm
D) 20 – 25 cm
This follows the standard mulberry/sericulture cultivation recommendation for the stated condition.
LDE (other) β€’ 2021 β€’ Paper-I

Larval period of multivoltine races of Bombyx mori is:

A) 5 -10 days
B) 10 – 20 days
C) 20 – 25 days
D) 25 – 30 days
The larval period is about 20–25 days in multivoltine races.
LDE (other) β€’ 2021 β€’ Paper-I

Transferring of matured silkworm larvae to a suitable frame to spin cocoon is called:

A) Moulting
B) Spinning
C) Brushing
D) Mounting
This is the standard sericulture/agronomic practice for the condition stated.
LDE (other) β€’ 2021 β€’ Paper-I

Required temperature during the 5th instar:

A) 16 – 180C
B) 23 – 240C
C) 24 – 280C
D) 28 – 300C
This is the standard sericulture/agronomic practice for the condition stated.
LDE (other) β€’ 2021 β€’ Paper-I

__________ consists of dung, urine and straw that has been used as bedding for cattle:

A) Green manure
B) compost
C) FYM
D) Sericulture waste
This follows the standard mulberry/sericulture cultivation recommendation for the stated condition.
LDE (other) β€’ 2021 β€’ Paper-I

__________ system is followed for rainfed mulberry crop:

A) Pit system
B) Row system
C) Kolar system
D) Strip system
This follows the standard mulberry/sericulture cultivation recommendation for the stated condition.
LDE (other) β€’ 2021 β€’ Paper-I

__________ races lay only diapausing eggs:

A) Univoltine
B) Bivoltine
C) Multivoltine
D) Commercial
This is the standard sericulture/agronomic practice for the condition stated.
LDE (other) β€’ 2021 β€’ Paper-I

__________ formalin is used for routine disinfection of rearing room and rearing appliances prior to the commencement of rearing:

A) 2%
B) 5%
C) 8%
D) 10%
A dilute formalin solution (commonly about 2%) is used for routine disinfection.
LDE (other) β€’ 2021 β€’ Paper-I

The best time for brushing is:

A) 6 am
B) 8 am
C) 10 am
D) 11 am
This is the standard sericulture/agronomic practice for the condition stated.
LDE (other) β€’ 2021 β€’ Paper-I

Recommended doses of fertilizers after 2nd year onwards under rainfed condition:

A) 100N : 50P : 50K
B) 100N : 100P : 50K
C) 100N : 100P : 100K
D) 50N : 50P : 50K
This follows the standard mulberry/sericulture cultivation recommendation for the stated condition.
LDE (other) β€’ 2021 β€’ Paper-I

The inter-row spaces are covered with cut-straw mats or mulberry twigs as a protective material. This is called:

A) Intercultivation
B) Pruning
C) Grafting
D) Mulching
This follows the standard mulberry/sericulture cultivation recommendation for the stated condition.
LDE (other) β€’ 2021 β€’ Paper-I

The period of mulberry storage should not exceed __________:

A) 8 hours
B) 12 hours
C) 18 hours
D) 24 hours
This follows the standard mulberry/sericulture cultivation recommendation for the stated condition.
LDE (other) β€’ 2021 β€’ Paper-I

At least __________ should be carried out during the first six months after planting of cuttings:

A) one weeding
B) two weedings
C) three weedings
D) four weedings
This follows the standard mulberry/sericulture cultivation recommendation for the stated condition.
LDE (other) β€’ 2021 β€’ Paper-I

In case of leaf harvest methods, the first harvest is taken __________ after 1st pruning:

A) 50 days
B) 70 days
C) 100 days
D) 120 days
The first harvest after the first pruning is around 70 days in the cited practice.
LDE (other) β€’ 2021 β€’ Paper-I

Recommended dose of fertilizer during 1st year under rainfed is:

A) 25N : 25P : 25K
B) 50N : 50P : 50K
C) 50N : 25P : 25K
D) 50N : 25P : 50K
This follows the standard mulberry/sericulture cultivation recommendation for the stated condition.
LDE (other) β€’ 2021 β€’ Paper-I

Silkworm are fond of __________ dim light:

A) 15 – 30 lux
B) 20 – 25 lux
C) 25 – 30 lux
D) 30 – 35 lux
This is the standard sericulture/agronomic practice for the condition stated.
LDE (other) β€’ 2021 β€’ Paper-I

__________, in which the mulberry branches are cut around mid-height at about one metre:

A) Bottom pruning
B) Middle pruning
C) Top pruning
D) Ground pruning
This follows the standard mulberry/sericulture cultivation recommendation for the stated condition.