Q1. Frozen Foods Have A Higher Transfer Co-Efficient Hence They Lose Heat Faster Than Other Food Items When Exposed To The Outside Environment.

A) True
B) False

Answer – A) True

• Frozen Foods Have A Higher Transfer Co-Efficient Hence They Lose Heat Faster Than Other Food Items When Exposed To The Outside Environment.

READ MORE – FOOD TECHNOLOGY (10/03/2021)

Q2. For A Copper Pipe, K = 0.3534, Temperature Difference = 60, B = 0.0125 And A = 850. What Is The Value Of Q?

A) 1442 W
B) 1442 KW
C) 1565 W
D) 1565 KW

Answer – B) 1442 KW

• Q=KA ∆T/B. Hence, The Answer Is 1442kw

READ MORE – Food Science & Technology Quiz (30-12-2021)

Q3. __________ Is When Nucleate Boiling Transforms To Film Boiling?

A) Critical Temperature
B) Leiden Frost Point
C) All The Above
D) None Of The Mentioned

Answer – B) Leiden Frost Point

• The Leidenfrost Effect Is A Physical Phenomenon In Which A Liquid, Close To A Surface That Is Significantly Hotter Than The Liquid’s Boiling Point, Produces An Insulating Vapor Layer That Keeps The Liquid From Boiling Rapidly.

READ MORE – FOOD TECHNOLOGY (25/03/2021)

Q4. The Reciprocal Of The Heat Transfer Co-Efficient Is _____?

A) Conductance
B) Resistance
C) Density
D) Temperature Difference

Answer – B) Resistance

• The Reciprocal Of Heat Transfer Coefficient Is Resistance. Resistance Is A Measure Of The Opposition To Current Flow In An Electrical Circuit. Resistance Is Measured In Ohms.

READ MORE – Food Science & Technology Quiz (22-10-2021)

 Q5. Find Heat Transfer In An Agitated Jacketed Vessel If N_Rei Is 1.5 * 105 And N_Pr Is 20?

A) 0.9
B) 1.2
C) 1.8
D) None Of The Mentioned

Answer – A) 0.9

• N_Nu = 0.36 * (N_Rei) * 0.67 * (N_Pr) * 0.33 * Ф_v, N_Nu = Hd/K, Which Is The Heat Transferred.
  Substituting Values, We Get 0.9.
  Ф_v Is Neglected.

READ MORE – FOOD TECHNOLOGY (29/03/2021)

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