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Chemical Engineering Basics Online Exam Quiz

Important questions about Chemical Engineering Basics. Chemical Engineering Basics MCQ questions with answers. Chemical Engineering Basics exam questions and answers for students and interviews.

1. The product out from a cupola is called

Options

A : wrought iron

B : pig iron

C : cast iron

D : none of these

2. In condensers used in thermal power plants, steam is normally used in shell side and cooling water on the tube side, because of the reason that

Options

A : compared to the mass flow rate of cooling water, the rate of condensation of steam is invariably smaller.

B : maintaining vacuum on tube side is more difficult than that on the shell side.

C : water velocity can be increased conveniently to increase the overall heat transfer co-efficient because of its lower specific volume compared to steam.

D : condenser can act as a storage unit for condensed steam.

3. Which one of the following is incombustible?

Options

A : H 2

B : CCl4

C : C 2 H 2

D : S

4. __________ is the hardest oxide and is hence used where high wear resistance at high temperature is required.

Options

A : Beryllia

B : Zirconia

C : Alumina

D : Magnesia

5. Machinability of hard alloys and tool steels is improved by

Options

A : spherodising

B : annealing

C : tempering

D : normalising

6. If a nuclear reactor produces more fissile nuclear fuel than it consumes, then it is called a __________ reactor.

Options

A : critical

B : breeder

C : fertile

D : heterogenous

7. Maxwell's thermodynamic relations applies to the

Options

A : chemical systems in equilibrium.

B : mechanical systems in equilibrium.

C : irreversible thermodynamic processes.

D : reversible thermodynamic processes.

8. Evaporative cooling process employs a combination of cooling and humidification in which the

Options

A : sensible heat is added.

B : sensible heat is removed and the latent heat is added.

C : latent heat is removed.

D : sensible heat is added and latent heat is removed.

9. Corrosion of metals can not be prevented by its

Options

A : tempering

B : chromising

C : aluminising

D : alloying

10. Nusselt number is related to Grashoff number ( Gr ) in turbulent & laminar flow respectively, in respect of free convection over a vertical flat plate as

Options

A : Gr 0.25 , Gr

B : Gr 0.25 , Gr 0.33

C : Gr , Gr 0.25

D : Gr 0.33 , Gr 0.25

1. Annealing ofwhite cast iron produces __________ iron.

Options

A : grey

B : nodular

C : malleable

D : spheroidal

2. An alloy of Fe - 0.4 % C is

Options

A : cast iron.

B : hypo-eutectoid steel.

C : hyper-eutectoid steel.

D : eutectoid steel

3. Auto collimator is used to check

Options

A : flatness

B : angle

C : rotor balancing

D : roughness

4. All of the following alloying elements of steel increases hardness but sacrifice ductility, except

Options

A : nickel

B : vanadium

C : molybdenum

D : chromium

5. In the blast furnace, incorporation of water vapour in the blast gives the following effect.

Options

A : Increases the reducing potential of the gas.

B : Increases the flame temperature.

C : No significant change occurs.

D : Increases the hydrogen content in the metal.

6. Transition from laminar to turbulent zone in free convection heat transfer is governed by the critical value of

Options

A : Grashoff number.

B : Grashoff number & Reynolds number.

C : Reynolds number.

D : Grashoff number & Prandtl number.

7. In extrusion of metals, which of the following statement is true?

Options

A : speed of the extruded material is same as that of ram speed.

B : Redundant work is a function of the die angle.

C : Relative motion between the billet surface and the container wall is always present.

D : Hollow ram is used for indirect extrusion.

8. The usual energy consumption in electric arc furnace steel making is __________ KWh/ton of steel.

Options

A : 60 - 100

B : 400 - 700

C : 1200 -1500

D : 2000 - 2300

9. Sudden fall of atmospheric pressure by a large amount is an indication of the

Options

A : rain

B : cold wave

C : storm

D : fair weather

10. Energy of the sun arises mainly from __________ reactions.

Options

A : fusion

B : fission

C : combustion

D : none of these

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