1. An Oil Press is called _____
a) Expresser
b) Boiler
c) Expeller
d) None of the mentioned
Discussion
Explanation: An Oil Press is called an Expeller.
2. Which of the following is true about Seed Flaking in Pre-press Solvent Extraction?
a) The flakes have to be very thin
b) The flakes have to be very thick
c) The flakes have to be an optimum size- neither to thick nor too thin
d) None of the mentioned
Discussion
Explanation: The flakes have to be an optimum size- neither to thick nor too thin in Seed Flaking in Pre-press Solvent Extraction. As thin ones are too fragile and thick ones give a poor oil yield.
3. In the Seed Cooking step of Pre-press Solvent Extraction of oil ________
a) Reducing oil viscosity promotes oil collection
b) Temperature is increased to inactive/denature the enzymes
c) Sometimes, very high temperature affects meal protein
d) All of the mentioned
Discussion
Explanation: All the given sentences are true.
4. In Solvent Extraction, the oil and miscella are moved in a ________
a) Co- current fashion
b) Counter- current fashion
c) Cross- current fashion
d) None of the mentioned
Discussion
Explanation: In Solvent Extraction, the oil and miscella are moved in a Counter current manner so that the two phases are easily removed
5. Stripping Solvent off a meal is called _____
a) Toasting
b) Buttering
c) Jamming
d) Milling
Discussion
Explanation: Stripping Solvent off a meal is called Toasting.
6. After toasting and before Refining, Oil is _____
a) Used
b) Made into pellets by hammer mill and stored
c) Washed
d) All of the mentioned
Discussion
Explanation: After toasting and before Refining, Oil is made into pellets by a hammer mill and stored.
7. Oil Refining is a step __________
a) After Oil Extraction
b) Before Oil Extraction
c) Between Oil cooking and flaking in Pre- Press Solvent Extraction
d) None of the mentioned
Discussion
Explanation: Oil Refining is a step after Oil Extraction
8. In Oil refining, oil is __________
a) De-odorized
b) Bleached
c) De-odorized & Bleached
d) None of the mentioned
Discussion
Explanation: In Oil refining, oil is De-odorized and bleached.
9. Oil is extracted by _____
a) Mechanical Extraction
b) Pre- Press Solvent Extraction
c) None of the mentioned
d) Mechanical Extraction & Pre- Press Solvent Extraction
Discussion
Explanation: Oil is extracted both, by Mechanical Extraction and Pre- Press Solvent Extraction.
10. In Oil refining, oil is _____
a) Filtered / Centrifuged
b) De-acidified / Steam blown through Oil in vacuum
c) Filtered / Centrifuged, De-acidified / Steam blown through Oil in vacuum
d) None of the mentioned
Discussion
Explanation: In oil Refining, oil is Filtered / Centrifuged and De-acidified / Steam blown through Oil in a vacuum