IS I 2492 - 1976 Members Directorate of Military Farms Quiz
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Questions and Answers

What is the recommended speed for the mechanical agitator to run at?

  • 18 rpm
  • 32 rpm (correct)
  • 42 rpm
  • 25 rpm
  • What material is the agitator shaft made of?

  • Iron
  • Copper
  • Stainless steel (correct)
  • Aluminum
  • How long should it take for the agitator to mix the milk sufficiently?

  • 20 minutes
  • 10 minutes (correct)
  • 5 minutes
  • 15 minutes
  • What type of motor drives the side agitator?

    <p>Induction motor</p> Signup and view all the answers

    What is the minimum diameter of the toughened glass in the light and sight glass assemblies?

    <p>140 mm</p> Signup and view all the answers

    What type of protection does the induction motor have?

    <p>IP 55 protection</p> Signup and view all the answers

    Where should the step bearing at the bottom of the vertical shaft agitator be located?

    <p>Not interfering with drainage</p> Signup and view all the answers

    What is used to protect the opening for the agitator shaft from external matter?

    <p>Plastic cover</p> Signup and view all the answers

    What is another name for a mechanical seal?

    <p>Rotary seal</p> Signup and view all the answers

    The mechanical agitator typically runs at 42 rpm to ensure proper mixing of milk in the tank within 10 min.

    <p>False</p> Signup and view all the answers

    The agitator shaft is made of a single piece solid rod of stainless steel with a diameter of 40 mm.

    <p>False</p> Signup and view all the answers

    The step bearing at the bottom of the vertical shaft agitator should not interfere with the drainage of milk from the tank.

    <p>True</p> Signup and view all the answers

    The light glass assembly should be provided with a lamp holder made of stainless steel.

    <p>False</p> Signup and view all the answers

    The stainless steel sight glass assembly must be positioned in a way that provides a partial view of the inside of the tank.

    <p>False</p> Signup and view all the answers

    The side agitator consists of a stainless steel shaft and is driven by a 6 pole TEFC squirrel cage flanged induction motor.

    <p>False</p> Signup and view all the answers

    The agitator assembly should be mounted on an aluminum supporting structure.

    <p>False</p> Signup and view all the answers

    The opening for the agitator shaft is protected against entrance of external matter by providing permanently fixed fittings.

    <p>False</p> Signup and view all the answers

    The lamp used for the light glass assembly must operate on a 12 V dc system.

    <p>False</p> Signup and view all the answers

    The mechanical seal provided for the side agitator ensures airtightness within the tank.

    <p>False</p> Signup and view all the answers

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