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For venturimeters, the coefficient of discharge range is ______.

This question was previously asked in
NHPC JE Mechanical 6 April 2022 (Shift 2) Official Paper
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  1. 0.93 - 0.94
  2. 0.90 - 0.93
  3. 0.95 - 0.98
  4. 0.85 - 090

Answer (Detailed Solution Below)

Option 3 : 0.95 - 0.98
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Detailed Solution

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Explanation:

The coefficient of discharge is the ratio of actual discharge to theoretical discharge.

Coefficient of discharge

⇒ Venturimeter – 0.95 to 0.98

⇒ Orifice meter – 0.62 to 0.65

⇒ Nozzle meter – 0.93 to 0.98

∴ The coefficient of discharge for the venturi meter lies is higher than the nozzle meter and orifice meter.

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