Download Aptitude Crack
img not found img not found

Fluid Mechanics

Q1: Capacity of a rotary gear pump can be varied by

A changing the speed of rotation.

B bleeding air into suction.

C bypassing liquid from the suction or discharge line.

D all (a), (6) and (c).

ANS:D - all (a), (6) and (c).

The capacity of a rotary gear pump can indeed be varied by all the methods mentioned:

  1. Changing the Speed of Rotation: Altering the speed of rotation of a rotary gear pump directly affects its capacity. Higher speeds generally increase the flow rate, while lower speeds decrease it.
  2. Bleeding Air into Suction: Introducing air into the suction line can affect the pump's performance by reducing the effective density of the fluid being pumped. This method is less common for varying capacity compared to the others but can have an effect under certain conditions.
  3. Bypassing Liquid from the Suction or Discharge Line: By bypassing a portion of the liquid from either the suction or discharge line, the total flow rate through the pump can be adjusted. This is a common method used in industrial settings to regulate the pump's output without changing the pump's speed.
Therefore, the correct answer is all (a), (b), and (c). These methods provide flexibility in adjusting the capacity of a rotary gear pump to suit varying operational requirements and conditions.



img not found
img

For help Students Orientation
Mcqs Questions

One stop destination for examination, preparation, recruitment, and more. Specially designed online test to solve all your preparation worries. Go wherever you want to and practice whenever you want, using the online test platform.