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 (C)</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 (A)</p> Signup and view all the answers

What type of protection does the induction motor have?

<p>IP 55 protection (C)</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 (A)</p> Signup and view all the answers

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

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

What is another name for a mechanical seal?

<p>Rotary seal (B)</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 (B)</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 (B)</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 (A)</p> Signup and view all the answers

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

<p>False (B)</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 (B)</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 (B)</p> Signup and view all the answers

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

<p>False (B)</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 (B)</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 (B)</p> Signup and view all the answers

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

<p>False (B)</p> Signup and view all the answers

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