Chemical Engineering MCQs: 8,342 practice questions with answer choices and available explanations. Page 221 of 557.

Chemical Engineering MCQs

Showing page 221 of 557 · 8,342 total solved questions available.

Study Topic

⚡Start Quiz Mode to Practice Like the Real Exam!

Graphite or carbon refractories________?

A.Should be used in neutral or reducing atmosphere

B.Exhibit wetting characteristics

C.Exhibit high shrinkage on thermal treatment

D.Are not resistant to corrosion by slag

Explanation: The correct answer is Should be used in neutral or reducing atmosphere.

Submitted by: Academy of Pakistan

Read More Details about this Mcq →

With increase in the carbon percentage in the steel, its________?

A.Ductility reduces

B.Tensile strength increases

C.All A., B. and C.

D.Hardness increases

Explanation: The correct answer is All A., B. and C..

Submitted by: Academy of Pakistan

Read More Details about this Mcq →

Bromides contained in hot mother liquor is treated with ________ during manufacture of bromine from sea water?

A.SO3

B.SO2

C.NH3

D.Cl2

Explanation: The correct answer is Cl2.

Submitted by: Academy of Pakistan

Read More Details about this Mcq →

Specific rate constant for a second order reaction________?

A.Both B. and C.

B.Varies with temperature

C.Depends on the nature of the reactants

D.Is independent of temperature

Explanation: The correct answer is Both B. and C..

Submitted by: Academy of Pakistan

Read More Details about this Mcq →

Sulphur in metallurgical coal________?

A.Both A. and B.

B.Affects the quality of steel produced as cracks develop on the surface while rolling the steel

C.Neither A. nor B.

D.Contributes to its heating value

Explanation: The correct answer is Both A. and B..

Submitted by: Academy of Pakistan

Read More Details about this Mcq →

Fats as compared to oils have ________?

A.More unsaturated glycerides of fatty acids

B.Much higher reactivity to oxygen

C.Less unsaturated glycerides of fatty acids

D.Lower melting point

Explanation: The correct answer is Less unsaturated glycerides of fatty acids.

Submitted by: Academy of Pakistan

Read More Details about this Mcq →

Dehydration of ammonium carbamate to yield urea is a/an ________ reaction?

A.Catalytic

B.Endothermic

C.Autocatalytic

D.Exothermic

Explanation: The correct answer is Endothermic.

Submitted by: Academy of Pakistan

Read More Details about this Mcq →

Referring to the periodic table of elements, it is found that with increasing atomic number. The atomic size in the same________?

A.Group increases

B.Both ‘B’ & ‘C’

C.Period increases

D.Period decreases

Explanation: The correct answer is Both ‘B’ & ‘C’.

Submitted by: Academy of Pakistan

Read More Details about this Mcq →

Molten soap mass is transported by a ________ pump?

A.Reciprocating

B.Gear

C.Centrifugal

D.Diaphragm

Explanation: The correct answer is Centrifugal.

Submitted by: Academy of Pakistan

Read More Details about this Mcq →

The heat of reaction________?

A.Is independent of the mechanism of reaction

B.Depends on both pressure and mechanism of reaction

C.Depends on the pressure only

D.Depends on the mechanism of reaction only

Explanation: The correct answer is Is independent of the mechanism of reaction.

Submitted by: Academy of Pakistan

Read More Details about this Mcq →

Toothpaste is a________?

A.Bingham plastic

B.Newtonian liquid

C.Pseudo-plastic

D.Dilatent

Explanation: The correct answer is Dilatent.

Submitted by: Academy of Pakistan

Read More Details about this Mcq →

Which of the following alloying elements is present in maximum percentage in high speed steel?

A.Vanadium

B.Tungsten

C.Chromium

D.Molybdenum

Explanation: The correct answer is Molybdenum.

Submitted by: Academy of Pakistan

Read More Details about this Mcq →

The Schmidt number which is defined as, μ/ρ D, is the ratio of the________?

A.Momentum diffusivity to the mass diffusivity

B.None of these

C.Thermal diffusivity to the mass diffusivity

D.Momentum diffusivity to the thermal diffusivity

Explanation: The correct answer is Momentum diffusivity to the mass diffusivity.

Submitted by: Academy of Pakistan

Read More Details about this Mcq →

Which is almost absent in crude petroleum?

A.Naphthenes

B.Cycloparaffins

C.Olefins

D.Mercaptans

Explanation: The correct answer is Mercaptans.

Submitted by: Academy of Pakistan

Read More Details about this Mcq →

Metallic soap (e.g. aluminium or calcium salts of fatty acids) can be used________?

A.In hard water for cleaning of cloth

B.As a foam depressant in distillation column

C.As a lubricant

D.As a rust preventive

Explanation: The correct answer is As a lubricant.

Submitted by: Academy of Pakistan

Read More Details about this Mcq →

Continue studying

Practice quiz Past papers Civil Engineering MCQs Electrical Engineering MCQs Mechanical Engineering MCQs Software Engineering MCQs