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RRB Junior Engineer / DMS / CMA 2019 · Question 3495 of 3719

The ratio of actual discharge of a jet of water to its theoretical discharge is known as-

  1. ACoefficient of velocity
  2. BCoefficient of dischargeCorrect
  3. CCoefficient of viscosity
  4. DCoefficient of contraction

Answer: B. Coefficient of discharge

Explanation

Explanation: Coefficient of discharge is the ratio of actual discharge to the 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 Important Points The coefficient of discharge for the venturimeter lies is higher than the nozzle meter and orifice meter.

Source: RRB JE 2019 (CBT 2) (ME) Previous Year Paper (31 Aug 2019) — prepp.in solved-paper PDF (answer key with explanations) · reliable-secondary

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