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An oil of specific gravity 0.9 has viscosity of 0.28 Strokes at 380C.What will be its viscosity in Ns/m2?
- a)0.2520
- b)0.0311
- c)0.0252
- d)0.0206
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
An oil of specific gravity 0.9 has viscosity of 0.28 Strokes at 380C.W...
Ans. (c) Specific Gravity = 0.9 therefore Density = 0.9 × 1000 =900 kg/m3
One Stoke = 10-4 m2/s
Viscosity (μ) = ρν
= 900 × 0.28 × 10-4 = 0.0252 Ns/m2
One Stoke = 10-4 m2/s
Viscosity (μ) = ρν
= 900 × 0.28 × 10-4 = 0.0252 Ns/m2
Most Upvoted Answer
An oil of specific gravity 0.9 has viscosity of 0.28 Strokes at 380C.W...
Given data:
Specific gravity of oil, S = 0.9
Viscosity of oil at 38°C, μ = 0.28 Strokes
Density of oil, ρ = S × ρw (where ρw is the density of water at 4°C)
Calculation:
Density of water at 4°C, ρw = 1000 kg/m³
Density of oil, ρ = 0.9 × 1000 = 900 kg/m³
Dynamic viscosity of oil, μ = 0.28 Strokes = 0.028 Pa.s
Kinematic viscosity of oil, ν = μ/ρ = 0.028/900 = 3.11 × 10^-5 m²/s
Viscosity in Ns/m², η = ρ × ν = 900 × 3.11 × 10^-5 = 0.0252 Ns/m²
Therefore, the viscosity of the oil in Ns/m² is 0.0252 Ns/m², which is option C.
Specific gravity of oil, S = 0.9
Viscosity of oil at 38°C, μ = 0.28 Strokes
Density of oil, ρ = S × ρw (where ρw is the density of water at 4°C)
Calculation:
Density of water at 4°C, ρw = 1000 kg/m³
Density of oil, ρ = 0.9 × 1000 = 900 kg/m³
Dynamic viscosity of oil, μ = 0.28 Strokes = 0.028 Pa.s
Kinematic viscosity of oil, ν = μ/ρ = 0.028/900 = 3.11 × 10^-5 m²/s
Viscosity in Ns/m², η = ρ × ν = 900 × 3.11 × 10^-5 = 0.0252 Ns/m²
Therefore, the viscosity of the oil in Ns/m² is 0.0252 Ns/m², which is option C.
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An oil of specific gravity 0.9 has viscosity of 0.28 Strokes at 380C.What will be its viscosity in Ns/m2?a)0.2520b)0.0311c)0.0252d)0.0206Correct answer is option 'C'. Can you explain this answer? for Mechanical Engineering 2025 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about An oil of specific gravity 0.9 has viscosity of 0.28 Strokes at 380C.What will be its viscosity in Ns/m2?a)0.2520b)0.0311c)0.0252d)0.0206Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An oil of specific gravity 0.9 has viscosity of 0.28 Strokes at 380C.What will be its viscosity in Ns/m2?a)0.2520b)0.0311c)0.0252d)0.0206Correct answer is option 'C'. Can you explain this answer?.
An oil of specific gravity 0.9 has viscosity of 0.28 Strokes at 380C.What will be its viscosity in Ns/m2?a)0.2520b)0.0311c)0.0252d)0.0206Correct answer is option 'C'. Can you explain this answer? for Mechanical Engineering 2025 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about An oil of specific gravity 0.9 has viscosity of 0.28 Strokes at 380C.What will be its viscosity in Ns/m2?a)0.2520b)0.0311c)0.0252d)0.0206Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An oil of specific gravity 0.9 has viscosity of 0.28 Strokes at 380C.What will be its viscosity in Ns/m2?a)0.2520b)0.0311c)0.0252d)0.0206Correct answer is option 'C'. Can you explain this answer?.
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