Abel apparatus is used for those oils, whose flash points are___°F.

Pensky-Marten apparatus is used for those oils, whose flash points are __________ °F.

A

[

A.

B. >120

B

90-110

Which of the following test is used for distinguishing among dry oils, semi-drying oils and non drying oils?

A

Elaiden test

B

Reichart-Meissl value test

C

Henter value test

D

Iodine value test

Mineral oils (e.g. petroleum oils) are preferred over fatty oils (e.g. mustard oil, ghee, tallow, palm oil, olive oil etc.) as a lubricant due to its

A

Poor oxidation stability and high gum forming tendency

B

Greater tendency of decomposition at elevated temperature

C

Hydrolysis tendency in presence of water

D

All of the above

Those who are vulnerable are___.

A

aggressive and uncooperative

B

need to be treated in intensive care units

C

guilty of a crime

D

susceptible to injury or disease

Air pollutions now are___

A

Widespread and short- lived

B

Not widespread

C

Responsible for health problems

D

Limited in their effects

In a centralized system, program manggers are___

A

given quick feed-back without time-lags in analysis and response

B

likely to suffer from deficiencies in information flows for time -lags in analysis and response

C

good time planners with all statistical flow time lags in analysis and response

D

more efficiently in a centralized system

Unsaturated oils compared to saturated oils have

A

Lower melting point & higher reactivity to oxygen

B

Higher melting point & higher reactivity to oxygen

C

Lower melting point & lower reactivity to oxygen

D

Higher melting point & lower reactivity to oxygen

Vegetable oils contain large quantity of glycerides of unsaturated acids. When the vegetable oils contain high amount of saturated fatty acids, it is termed as __________ oil.

A

Drying

B

Semi-drying

C

Non-drying

D

None of these

Oils are partially hydrogenated (not fully) to manufacture vanaspati, because fully saturated solidified oils

A

Cause cholesterol build up and blood clotting

B

Are prone to rancid oxidation

C

Always contain some amount of nickel (as their complete removal is very difficult)

D

Have affinity to retain harmful sulphur compounds

Flash point of most vegetable oils is about __________ °C.

A

50

B

100

C

200

D

300

Abel apparatus is used for those oils, whose flash points are___°F.

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