chemical engineering MCQs – Page 166

Practise multiple-choice questions from chemical engineering for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

chemical engineering Mcqs

3301. Phenols are added in gasoline to____________________?
0

A. Act as an antioxidant

B. Increase its pour point

C. Improve the octane number

D. Reduce its viscosity

3302. Increase in the specific gravity of petroleum products indicates________________?
0

A. Higher H/C ratio

B. Increase in thermal energy per unit weight

C. Increase in aromatic content

D. Decrease in paraffin content

3303. The most suitable solvent for deasphalting vacuum residue is_____________________?
0

A. Propane

B. Methyl ethyl ketone

C. Methanol amine

D. Doctors solution

3304. Solvent used in the deasphalting process is ______________________?
0

A. Hexane

B. Propane

C. Furfural

D. Phenol

3305. Solution used in Doctors treatment for the removal of mercaptans is_________________?
0

A. Potassium isobutyrate

B. Sodium hydroxide

C. Sodium plumbite

D. Cupric chloride

3306. Which of the following contains maximum sulphur ?
0

A. Fuel oil

B. Kerosene

C. Petrol

D. Diesel

3307. High aniline point of diesel indicates that, it _____________________?
0

A. Has a large ignition delay

B. Has a low diesel index

C. Is highly aromatic

D. Is highly paraffinic

3308. hich of the following is the most suitable feed for platforming process (reforming) ?
0

A. Naphtha

B. Fuel oil

C. Atmospheric residue

D. Olefinic hydrocarbon

3309. The condensate obtained on compression of wet natural gas is termed as__________________?
0

A. None of these

B. Liquid natural gas

C. Liquefied natural gasoline

D. Natural gasoline

3310. Illuminating characteristics of kerosene is expressed by its_____________?
0

A. Luminosity number

B. Aniline point

C. Smoke point

D. Aromatic content

3311. Which of the following is the best tube material from thermal conductivity point of view alone ?
0

A. Stainless steel

B. Aluminium

C. Carbon steel

D. Copper

3312. Diesel index is defined as_________________?
0

A. (API) (100)/Aniline Point, C

B. (API) (Aniline Point, C)/100

C. (API) (Aniline Point, F)/100

D. (API) (100)/Aniline Point, F

3313. Which is the most desirable component of a good quality kerosene ?
0

A. Naphthenes

B. i-paraffins

C. Aromatics

D. n-paraffins

3314. Deoiling of wax is done by its _________________?
0

A. Heating

B. Cooling

C. Solvent extraction

D. Both B. & C.

3315. Which of the following theories of origin of petroleum does not explain the presence of nitrogen & sulphur compounds in crude oil ?
0

A. All A., B. and C.

B. Engler theory

C. Modern theory

D. Carbide theory

3316. Polymerisation__________________?
0

A. Causes aromatics to combine with each other

B. Causes olefins to combine with each other

C. Produces i-octane from cracked gases containing i-butane and butene

D. Is aimed at producing lubricating oil

3317. Which of the following categories of gasoline has the highest lead susceptibility ?
0

A. Straight run gasoline

B. Catalytical cracked gasoline

C. Platinum reformed gasoline

D. Polymer gasoline

3318. Aniline point is the temperature at which___________________?
0

A. Equal weight of diesel & the aniline are completely miscible

B. Equal weight of aniline & the test sample are completely miscible

C. Equal volume of aniline & the test sample are completely miscible

D. Aniline vaporises

3319. Solvent used for dewaxing of petroleum products are____________________?
0

A. Furfural

B. Methyl ethyl ketone (MEK)

C. Propane

D. Both B. & C.

3320. Crude oil is pumped by a _______________ pump?
0

A. Screw

B. Centrifugal

C. Reciprocating

D. Gear

Previous Next

Showing 3301 to 3320 of 8709 mcqs