Q1. Surface Charge Determination Can Be Done By?

(A) Colorimetric Titration
(B) Particle Charge Detector
(C) Both
(D) None

ANSWER – (C) Both

• Surface Charge Density Is A Measure Of How Much Electric Charge Is Accumulated Over A Surface. It Can Be Measured By Using Both Colorimetric Titration And Particle Charge Detector.

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

Q2. DSC Is A ____ Technique?

(A) Microscopic
(B) Thermal
(C) Spectroscopic
(D) Irradiation

ANSWER – (B) Thermal

• Differential Scanning Calorimetry Is A Thermo Analytical Technique In Which The Difference In The Amount Of Heat Required To Increase The Temperature Of A Sample And Reference Is Measured As A Function Of Temperature. The Method Allows You To Identify And Characterize Materials. Differential Scanning Calorimetry Is Fast, Very Sensitive And Easy To Use.

READ MORE – FOOD TECHNOLOGY (30/03/2021)

Q3. Which Of The Following Is Not A Thermal Treatment?

(A) Steaming
(B) Refrigeration
(C) Fermentation
(D) Roasting

ANSWER – (C) Fermentation

• Fermentation Is A Metabolic Process That Produces Chemical Changes In Organic Substrates Through The Action Of Enzymes. In Biochemistry, It Is Narrowly Defined As The Extraction Of Energy From Carbohydrates In The Absence Of Oxygen. All The Other Processes Mentioned Are Thermal Treatments.

READ MORE – FOOD TECHNOLOGY (14/04/2021)

Q4. Which Of The Following Is A Part Of Differential Scanning Calorimeter?

(A) Spindle
(B) Amplifier
(C) Probe
(D) All

ANSWER – (B) Amplifier

• Differential Scanning Calorimetry Is A Thermoanalytical Technique In Which The Difference In The Amount Of Heat Required To Increase The Temperature Of A Sample And Reference Is Measured As A Function Of Temperature. DSC Comprises The Sample And Reference Holder, The Heat Resistor, The Heat Sink, Amplifier And The Heater.

READ MORE – FOOD TECHNOLOGY (18/03/2021)

Q5. Which Of The Following Is Related To Surface Charge Analysis?

(A) Zeta Potential
(B) Water Activity
(C) Fermentation
(D) All

ANSWER – (A) Zeta Potential

• Zeta Potential Is The Charge That Develops At The Interface Between A Solid Surface And Its Liquid Medium. This Potential, Which Is Measured In MilliVolts, May Arise By Any Of Several Mechanisms.

READ MORE – FOOD TECHNOLOGY (19/04/2021)

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