In a fishing vessel propulsion train, the marine reduction-reverse gearbox is installed between the main diesel engine and the propeller shaft.
Primary Purpose:
Directional Control: Engages multi-plate clutches to allow forward, reverse, and neutral propeller shaft rotation while the engine runs continuously in one direction.
Speed Reduction: Steps down high engine crankshaft RPM ($1500-2000\text{ rpm}$) to efficient low propeller speeds ($300-500\text{ rpm}$).
Correct Option: Option 3 (Keeping the forward, reverse and neutral positions).
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8
ICAR JRF Fisheries Technology And Engineering 29 Jun 2024Shift 1
MCQ (Single Correct)+4−1
The concentration of iodine solution required in smoked fish plant for hand and equipment sterlization respectively are
Iodophors are complexes of elemental iodine bound to non-ionic surfactants, providing broad-spectrum bactericidal, fungicidal, and virucidal activity.
Prescribed Concentrations:
Hand Dips / Hand Washing: $12.5 - 15\text{ ppm}$ available titratable iodine (safe for frequent skin contact without causing dermatitis).
Equipment and Utensil Sanitation: $25\text{ ppm}$ available iodine (effective sanitizer on cleaned stainless steel and food contact surfaces without requiring a subsequent potable water rinse).
Correct Option: Option 3 (15 and 25 ppm).
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9
ICAR JRF Fisheries Technology And Engineering 29 Jun 2024Shift 1
Nobashi Ebi (Stretched / Elongated Shrimp): A traditional Japanese-style value-added frozen shrimp product prepared from peeled, tail-on (PTO) marine or vannamei shrimp.
Small diagonal incisions (typically 4–5 cuts) are made along the ventral muscle grooves, and the shrimp is gently pressed and stretched straight manually.
This prevents muscle contraction and curling during cooking, making it ideal for breaded/battered shrimp and Tempura preparation.
Correct Option: Option 1 (Nobashi).
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10
ICAR JRF Fisheries Technology And Engineering 29 Jun 2024Shift 1
Japanese Surimi-Based Paste Products (Kamaboko Varieties):
Satsuma-age (Age-kamaboko): A deep-fried surimi-based fish cake product popular in Kagoshima (Satsuma province), Japan, characterized by a golden-brown fried crust and elastic interior.
Chikuwa: Bamboo-shaped surimi product grilled / broiled on rotating metal or bamboo skewers.
Hampen: Fluffy, marshmallow-like boiled fish cake prepared by whipping surimi with grated yam and egg white.
Tempura: Lightly battered, deep-fried seafood and vegetables.
Correct Option: Option 4 (Satsumaage).
Explanation not matching this question?क्या व्याख्या इस प्रश्न से मेल नहीं खा रही?Report
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