Fisheries • 2017 • Technical Paper-III
The most important bacteria which produce histamine from histidine
A)
Hafnia sp
B)
Pseudomonas sp
C)
Klebsiella sp
D)
Morganella sp
Morganella morganii (Morganella psychrotolerans) is strongest histamine producer from histidine; Hafnia, Klebsiella also produce but less.
Fisheries • 2017 • Technical Paper-III
Compound responsible for typical odour in cold store frozen fishery products :
A)
Hydrogen sulphide
B)
Maillard reaction
C)
Heptanal
D)
Merceptans
Cold-storage rancid/cardboard odour in frozen fish due to lipid oxidation carbonyls like heptanal.
Fisheries • 2017 • Technical Paper-III
The most effective preservative for canned foods is :
A)
MSG
B)
Glucose
C)
Sucrose
D)
Nisin
Nisin is a bacteriocin effective against spore-formers in canned foods; MSG/sugars are flavor, not effective preservatives.
Fisheries • 2017 • Technical Paper-III
Antibodies are produced by :
A)
Lymphocytes
B)
Thrombocytes
C)
Leucocytes
D)
All of these
Antibodies produced by B-lymphocytes/plasma cells, a type of lymphocyte.
Fisheries • 2017 • Technical Paper-III
Haematocit is the ratio of ………………to the total blood volume
A)
Haemoglobin
B)
WBCs
C)
Platelets
D)
Cellular fraction
Hematocrit is packed cell volume; ratio of cellular fraction (mainly RBC) to total blood.
Fisheries • 2017 • Technical Paper-III
‘Bouquet’ is related to ‘Flowers’ in the same way as ‘Sentence’ is related to
A)
Letters
B)
Paragraph
C)
Content
D)
Words
Bouquet is collection of flowers; sentence is collection of words.
Fisheries • 2017 • Technical Paper-III
The lawyer had to find innovative arguments for his case, there was just no _______ that he could follow or quote.
A)
Example
B)
Itinerant
C)
Style
D)
Precedent
No precedent to follow or quote is legal idiom.
Fisheries • 2017 • Technical Paper-III
Some people have a __________ need to control all aspects of their lives and top eliminate all ________ of chance. These individuals seldom achieve a sense of fulfilment.
A)
Habitual.......possessions
B)
Dramatic......factors
C)
Powerful.......nuances
D)
Compulsive........hindrances
Compulsive need to control and eliminate all hindrances fits context of control.
Fisheries • 2017 • Technical Paper-III
Select the synonym of the word BEGUILE.
A)
Deceive
B)
Deny
C)
Dissent
D)
Refuse
Beguile means deceive or charm to mislead.
Fisheries • 2017 • Technical Paper-III
White Tail Disease (WTD) is caused by :
A)
Bacteria
B)
Fungus
C)
Virus
D)
Parasite
White Tail Disease of Macrobrachium rosenbergii caused by MrNV virus.
Fisheries • 2017 • Technical Paper-III
A live microbial feed supplement which beneficially affects the host animal by improving its intestinal balance is termed as :
A)
Probiotic
B)
Antibiotic
C)
Prebiotic
D)
None of these
Probiotic = live microbial supplement improving intestinal balance.
Fisheries • 2017 • Technical Paper-III
Aeromonas salmonicida causes :
A)
Enteric red mouth disease
B)
Red pest
C)
Saddleback disease
D)
Furunculosis
Aeromonas salmonicida causes furunculosis in salmonids, classic hemorrhagic disease.
Fisheries • 2017 • Technical Paper-III
Which of the following is a crustacean parasite infesting fish is?
A)
Gyroductylus
B)
Argulus
C)
Dactyrogyrus
D)
Hexamita
Argulus is fish louse, branchiuran crustacean ectoparasite. Gyrodactylus and Dactylogyrus are monogenean flatworms; Hexamita is flagellate protozoan.
Fisheries • 2017 • Technical Paper-III
When the area of haemorrhage is less than 1-2 mm, then it is called:
A)
Ecchymotic
B)
Hematoma
C)
Petechiae
D)
Painbrush
Petechiae <1-2 mm hemorrhagic spots, ecchymosis larger, hematoma swelling.
Fisheries • 2017 • Technical Paper-III
Which of the following is not an ectoparasite?
A)
Argulus
B)
Trichodina
C)
Hexamita
D)
Dactyrogyrus
Hexamita is intestinal endoparasite protozoan; others are ectoparasites.
Fisheries • 2017 • Technical Paper-III
When relative size of fish caught is high and fishing mortality is high, the condition is:
A)
Under fishing
B)
Eumetric fishing
C)
Overfishing
D)
None of these
Eumetric fishing = large fish caught at high fishing mortality, indicates optimum exploitation.
Fisheries • 2017 • Technical Paper-III
The length at which 50% of the fish are caught is known as:
A)
Length at first maturity
B)
Length at first capture
C)
Age at first maturity
D)
None of these
Lc / Length at first capture = length where 50% of fish entering gear are retained, measure of gear selectivity.
Fisheries • 2017 • Technical Paper-III
The headquarter for fish and fish products under Codex commission is located in :
A)
U.K
B)
HUNGARY
C)
NORWAY
D)
U.S.A
Codex Committee on Fish and Fishery Products (CCFFP) hosted by Norway.
Fisheries • 2017 • Technical Paper-III
Tyndalization is a sterilization technique which is carried out at temp…. °C at 45 minutes
A)
80
B)
100
C)
60
D)
110
Tyndallization: intermittent steaming at 100°C for 30-45 min on 3 successive days.
Fisheries • 2017 • Technical Paper-III
Select a single word that closely describes a person in the habit of pointing out others’ faults.
A)
Interioper
B)
Officious
C)
Gossamer
D)
Gadfly
Gadfly habitually annoys with criticism and points out faults; officious also close but gadfly is critic.
Fisheries • 2017 • Technical Paper-III
Find the number of triangles in the given figure.
A)
22
B)
24
C)
26
D)
28
Triangle count figure not provided; placeholder 28 common for complex figure, needs verification.
Fisheries • 2017 • Technical Paper-III
Disinfectants can easily kill mainly:
A)
Gram +ve bacteria
B)
Both (a) & (c)
C)
Gram –ve bacteria
D)
None of these
Gram-positive bacteria lack outer membrane, more easily killed by disinfectants than Gram-negative.
Fisheries • 2017 • Technical Paper-III
The positions of the first and the fifth digits in the number 52874691 are interchanged. Similarly, the positions of the second and the sixth digits are interchanged, and so on. Which of the following will be the third digit from the right end after the rearrangement?
A)
2
B)
6
C)
8
D)
7
Interchanged number =4 6 9 1 5 2 8 7, third from right =8.
Fisheries • 2017 • Technical Paper-III
The most important biochemical changes associated with freezing of fish is:
A)
Protein denaturation
B)
Freezer burn
C)
Gapping of fillet
D)
Crystallization
Freezing causes protein denaturation and aggregation, leading to toughening, drip loss, texture loss; primary biochemical change.
Fisheries • 2017 • Technical Paper-III
Pointing to a boy Zari said ‘He is the son of my grandfather’s only child’. How is the boy related to Meena?
A)
Brother
B)
Cousin
C)
Uncle
D)
Nephew
Grandfather's only child = parent. Son of parent = brother. Meena/Zari's brother.
