Sericulture Extension Officer • 2018 • Paper-II
When the temperature is _____________ the spinning process is slow.
A)
Lower than 20°C
B)
Below 30°C
C)
Between 25°-27°C
D)
Lower than 25°C
The answer follows standard sericulture practice, silkworm biology, reeling technology or seed-production principles for the stated item.
Sericulture Extension Officer • 2018 • Paper-II
Colchicine is a
A)
Pesticides
B)
Chemical mutagens
C)
Fungicide
D)
Nematicide
The answer follows standard sericulture practice, silkworm biology, reeling technology or seed-production principles for the stated item.
Sericulture Extension Officer • 2018 • Paper-II
In India, there is a three tiers silkworm seed/egg multiplication system
A)
P3, P 2, P1
B)
P2, P1, P3
C)
P1, P2, P3
D)
P3, P1, P2
The answer follows standard sericulture practice, silkworm biology, reeling technology or seed-production principles for the stated item.
Sericulture Extension Officer • 2018 • Paper-II
Tubercles colour of 3rd instar Muga silkworm is
A)
Blue
B)
Pale yellow
C)
Violet
D)
Brick-red
The answer follows standard sericulture practice, silkworm biology, reeling technology or seed-production principles for the stated item.
Sericulture Extension Officer • 2018 • Paper-II
Muga silkworm belongs to the genus
A)
Antheraea
B)
Philosomia
C)
Eriogyna
D)
None of these
The answer follows standard sericulture practice, silkworm biology, reeling technology or seed-production principles for the stated item.
Sericulture Extension Officer • 2018 • Paper-II
The diapausing stage in the life cycle of Bombyx mori is
A)
Egg
B)
Pupa
C)
Larva
D)
Moth
The answer follows standard sericulture practice, silkworm biology, reeling technology or seed-production principles for the stated item.
Sericulture Extension Officer • 2018 • Paper-II
Which of the followings is a bivoltine pure race
A)
Nistari, NB4D2, Pure Mysore
B)
Kalimpong-A, NB18, NB4D2
C)
Pure Mysore, NB18, CSR2
D)
CSR2, Kalimpong-A, Nistari
The answer follows standard sericulture practice, silkworm biology, reeling technology or seed-production principles for the stated item.
Sericulture Extension Officer • 2018 • Paper-II
Filament length of bivoltine cocoon is
A)
300-500
B)
700-1500
C)
500-700
D)
2000-2500
The answer follows standard sericulture practice, silkworm biology, reeling technology or seed-production principles for the stated item.
Sericulture Extension Officer • 2018 • Paper-II
Given below is a sequence of steps in the processing of reeling. Fill in the blank the missing sequence steps.
Stifling _________ reeling_________
A)
Cooking, re-reeling
B)
Lacing, cooking
C)
Sorting, brushing
D)
Lacing, skeining
The answer follows standard sericulture practice, silkworm biology, reeling technology or seed-production principles for the stated item.
Sericulture Extension Officer • 2018 • Paper-II
Silk are divided into three categories according to their size and their grades expressed in order of
A)
A,B,2A,3A,4A
B)
4A,3A,2A,A,B
C)
B,A,2A,3A,4A
D)
B,4A,3A,2A,A
The answer follows standard sericulture practice, silkworm biology, reeling technology or seed-production principles for the stated item.
Sericulture Extension Officer • 2018 • Paper-II
Where do you find diapausing eggs of silkworm?
A)
Tasar
B)
Muga
C)
Eri
D)
Mulberry
The answer follows standard sericulture practice, silkworm biology, reeling technology or seed-production principles for the stated item.
Sericulture Extension Officer • 2018 • Paper-II
Silkworms are fond of dim light
A)
15-20 lux
B)
15-30 lux
C)
10-30 lux
D)
20-30 lux
The answer follows standard sericulture practice, silkworm biology, reeling technology or seed-production principles for the stated item.
Sericulture Extension Officer • 2018 • Paper-II
The frequency of feeding of silkworm is
A)
3 feeding/day
B)
5 feeding/day
C)
4 feeding/day
D)
6 feeding/day
The answer follows standard sericulture practice, silkworm biology, reeling technology or seed-production principles for the stated item.
Sericulture Extension Officer • 2018 • Paper-II
Young silkworms are more resistant to
A)
High temperature, high humidity and bad ventilation
B)
High temperature, low humidity and bad ventilation
C)
Low temperature, low humidity and good ventilation
D)
Low temperature, high humidity and good ventilation
The answer follows standard sericulture practice, silkworm biology, reeling technology or seed-production principles for the stated item.
Sericulture Extension Officer • 2018 • Paper-II
In which year Indian Silk is first published?
A)
1953
B)
1962
C)
1964
D)
1949
The answer follows standard sericulture practice, silkworm biology, reeling technology or seed-production principles for the stated item.
Sericulture Extension Officer • 2018 • Paper-II
Voltinism referred on the basis of
A)
Geographical distribution
B)
Number of larval moulting
C)
Number of generation per year
D)
None of these
The answer follows standard sericulture practice, silkworm biology, reeling technology or seed-production principles for the stated item.
Sericulture Extension Officer • 2018 • Paper-II
When moths are allowed to emerge in a natural way a kind of digestive fluid secreted is known as
A)
Scricin
B)
Morin
C)
Proline
D)
Cocoonase
The answer follows standard sericulture practice, silkworm biology, reeling technology or seed-production principles for the stated item.
Sericulture Extension Officer • 2018 • Paper-II
In weaving the longitudinal threads are called
A)
Weft
B)
Bave
C)
Warp
D)
Braid
The answer follows standard sericulture practice, silkworm biology, reeling technology or seed-production principles for the stated item.
Sericulture Extension Officer • 2018 • Paper-II
In Mizoram the basic seed farm was located at
A)
Zemabawk
B)
Zobawk
C)
Lengpui
D)
Rangvamual
The answer follows standard sericulture practice, silkworm biology, reeling technology or seed-production principles for the stated item.
Sericulture Extension Officer • 2018 • Paper-II
Process of separation of cocoon according to their size is called
A)
Stifling
B)
Deflossing
C)
Riddling
D)
Skeining
The answer follows standard sericulture practice, silkworm biology, reeling technology or seed-production principles for the stated item.
Sericulture Extension Officer • 2018 • Paper-II
Requirement of temperature and relative humidity conditions for Chawki rearing are
A)
25oC and 60-70%RH
B)
26-28oC and 80-85%RH
C)
25-26oC and 85-95%RH
D)
25-30oC and 80-85%RH
The answer follows standard sericulture practice, silkworm biology, reeling technology or seed-production principles for the stated item.
Sericulture Extension Officer • 2018 • Paper-II
Types of Croissure in multi-end reeling machine is
A)
Chambon type
B)
Tavellette type
C)
Standard type
D)
All of these
The answer follows standard sericulture practice, silkworm biology, reeling technology or seed-production principles for the stated item.
Sericulture Extension Officer • 2018 • Paper-II
The scientific name of Oak Tasar silkworm is
A)
Antheraea proylei
B)
Antheraea assama
C)
Bombyx mori
D)
Quercus acutissima
The answer follows standard sericulture practice, silkworm biology, reeling technology or seed-production principles for the stated item.
Sericulture Extension Officer • 2018 • Paper-II
Highest ripening day of mature worms in Muga Rearing is
A)
Bhorpak
B)
Jhali
C)
Kharika
D)
Chaloni
The answer follows standard sericulture practice, silkworm biology, reeling technology or seed-production principles for the stated item.
Sericulture Extension Officer • 2018 • Paper-II
Ideal temperature and humidity required for preservation of seed cocoon is
A)
25oC and 70-80%RH
B)
20oC and 90%RH
C)
14±1oC and 60%RH
D)
10±2oC and 65%RH
The answer follows standard sericulture practice, silkworm biology, reeling technology or seed-production principles for the stated item.
