Chemical Engineering Basics MCQs

Option A: Stainless steel

Option B: Reinforced cement concrete

Option C: Cast iron

Option D: Asbestos cement

Correct Answer: Cast iron ✔

Option A: Occurs higher in the electro-chemical series of metals

Option B: Is exemplified by magnesium plate

Option C: Is much cheaper than the cathodic base material to be guarded against corrosion

Option D: All A, B. & C.

Correct Answer: D. All A, B. & C. ✔

Option A: Achieve very high purity of aluminium (99.9%)

Option B: Keep the electrolyte in liquid condition by the generation of heat

Option C: Electrolytically dissociate alumina

Option D: Both B. & C.

Correct Answer: D. Both B. & C. ✔

Option A: Cutting torch

Option B: Drilling

Option C: Punching

Option D: None of these

Correct Answer: Drilling ✔

Option A: 9,100

Option B: 13,000

Option C: 7,000

Option D: 2,550

Correct Answer: 9,100 ✔

Option A: 0.01 °C

Option B: 492°R

Option C: 0°K

Option D: -273°C

Correct Answer: 0.01 °C ✔

Option A: FeO

Option B: SiO2

Option C: MgO

Option D: MnO2

Correct Answer: SiO2 ✔

Option A: 0.8

Option B: 7.8

Option C: 200

Option D: 10000

Correct Answer: 0.8 ✔

Option A: Pressure

Option B: Elastic

Option C: Gravity

Option D: Viscous

Correct Answer: Pressure ✔

Option A: 4

Option B: 6

Option C: 8

Option D: 12

Correct Answer: 6 ✔

Option A: Lot size corresponding to break even analysis

Option B: Average level of inventory

Option C: Optimum lot size

Option D: None of these

Correct Answer: Optimum lot size ✔

Option A: Decrease gradually

Option B: Increase gradually

Option C: Increase rapidly

Option D: Remain constant

Correct Answer: Increase gradually ✔

Option A: Ethyl alcohol

Option B: Impurities

Option C: Methyl alcohol

Option D: Carbonic acid

Correct Answer: Methyl alcohol ✔

Option A: Heat capacity

Option B: Specific heat capacity

Option C: Thermal conductivity

Option D: Water equivalent

Correct Answer: Heat capacity ✔

Option A: Aluminium

Option B: Boron

Option C: Carbon

Option D: Nitrogen

Correct Answer: Carbon ✔

Option A: Venting off (after burning) the excess inflammable/toxic gases at high pressure

Option B: Absorbing the pollutant gases from the furnace exhaust

Option C: Cooling of furnace exhaust gases

Option D: None of these

Correct Answer: Venting off (after burning) the excess inflammable/toxic gases at high pressure ✔

Option A: T

Option B: 1/T

Option C: T2

Option D: 1/T2

Correct Answer: T ✔

Option A: Freeze drying

Option B: Solar evaporation

Option C: Electrolytic

Option D: None of these

Correct Answer: Solar evaporation ✔

Option A: Dislocation climb

Option B: Cross-slip

Option C: Twinning

Option D: Recrystallisation

Correct Answer: Recrystallisation ✔

Option A: 9.5 : 1

Option B: 12.5 : 1

Option C: 15.5 : 1

Option D: 18.5 : 1

Correct Answer: 9.5 : 1 ✔

Option A: Cresylic acid

Option B: Xanthaies

Option C: Pine oil

Option D: All A, B. & C.

Correct Answer: Xanthaies ✔

Option A: Low impact strength

Option B: High flexibility

Option C: Better finish and surface appearance

Option D: High plastic deformation

Correct Answer: Low impact strength ✔

Option A: Low temperature of

Option B: High temperature of

Option C: High % of CO in

Option D: High % of CO2 in

Correct Answer: High % of CO in ✔

Option A: Eutectic temperature

Option B: Lower critical temperature

Option C: Recrystallisation temperature

Option D: Upper critical temperature

Correct Answer: Recrystallisation temperature ✔

Option A: Isothermal expansion

Option B: Isochoric heat addition

Option C: Polytropic expansion

Option D: Isobaric heat addition

Correct Answer: Isothermal expansion ✔

Option A: 14 : 1

Option B: 22 : 1

Option C: 25 : 1

Option D: 4 : 1

Correct Answer: 14 : 1 ✔

Option A: Lancing

Option B: Shot peening

Option C: Slugging

Option D: Spinning

Correct Answer: Shot peening ✔

Option A: High speed steel

Option B: Stainless steel

Option C: Tungsten carbide

Option D: Superalloys

Correct Answer: Tungsten carbide ✔

Option A: 1 stoke = 1 cm2/sec

Option B: 1 N.sec/m2 = 10 paise

Option C: 1 stoke = 1 m2/sec

Option D: 1 m2/sec = 104 stokes

Correct Answer: 1 stoke = 1 m2/sec ✔

Option A: Elastic

Option B: Ultimate

Option C: Yielding

Option D: Breaking

Correct Answer: Yielding ✔

Option A: Adiabatic

Option B: Isothermal

Option C: Isentropic

Option D: Isochoric

Correct Answer: Isothermal ✔

Option A: Small punches, broaches reamers and springs

Option B: Cutlery, screws, rivets and files

Option C: Mandrels, twist drills, small lathe tools and razors

Option D: Forgings like can shaft, structural steel plate, threading dies and drawing dies

Correct Answer: Small punches, broaches reamers and springs ✔

Option A: Ferromagnetic

Option B: Semi-conductor

Option C: Paramagnetic

Option D: Ferroelectric

Correct Answer: Ferromagnetic ✔

Option A: Resilience

Option B: Toughness

Option C: Ductility

Option D: Impact strength

Correct Answer: Resilience ✔

Option A: Drain out water and sludge from the boiler during repair

Option B: Put off fire in the furnace when water level in the boiler falls to unsafe limit

Option C: Guard the boiler in case of abnormal rise in steam pressure

Option D: All A, B. & C

Correct Answer: Put off fire in the furnace when water level in the boiler falls to unsafe limit ✔

Option A: Suppresses any stress concentration produced in the parts

Option B: Enhances the yield point of the material

Option C: Introduces a compressive layer on the surface

Option D: Produces a better surface finish

Correct Answer: Introduces a compressive layer on the surface ✔

Option A: Additive

Option B: Constitutive

Option C: Both A. & B.

Option D: Neither A. nor B.

Correct Answer: C. Both A. & B. ✔

Option A: Authored by Kirk Othmer

Option B: Edited by Perry and Chilton

Option C: Edited by Kirk Othmer

Option D: Authored by Perry and Chilton

Correct Answer: Edited by Kirk Othmer ✔

Option A: Volume

Option B: Pressure

Option C: Heat

Option D: None of these

Correct Answer: Volume ✔

Option A: Impact

Option B: Completely reversed

Option C: Dynamic

Option D: Static & dynamic

Correct Answer: Completely reversed ✔

Option A: Alumel

Option B: Rhodium

Option C: Constantan

Option D: Duralumin

Correct Answer: Duralumin ✔

Option A: -0.8

Option B: 0.8

Option C: +0.08

Option D: -0.24

Correct Answer: -0.24 ✔

Option A: Voltage sensitive null

Option B: Voltage sensitive deflected

Option C: Current sensitive deflected

Option D: None of these

Correct Answer: Voltage sensitive deflected ✔

Option A: Resilience

Option B: Toughness

Option C: Ductility

Option D: Impact strength

Correct Answer: Resilience ✔

Option A: SiO2

Option B: Al2O3

Option C: CaSiO2

Option D: MgO

Correct Answer: Al2O3 ✔

Option A: Copper

Option B: Steel

Option C: Zinc

Option D: Aluminium

Correct Answer: Steel ✔

Option A: Sinter

Option B: Coke

Option C: Iron ore

Option D: Limestone

Correct Answer: Coke ✔

Option A: Zinc, copper & nickel

Option B: Cobalt, chromium & tungsten

Option C: Zinc, aluminium & nickel

Option D: Nickel, cobalt & vanadium

Correct Answer: Cobalt, chromium & tungsten ✔

Option A: Uranium – 233 : Fertile material

Option B: Binding energy : Mass defect

Option C: Scattering: Absorption cross-section

Option D: Number of nucleons : Mass number

Correct Answer: A. Uranium – 233 : Fertile material ✔

Option A: Partial pressure of water vapour is less than the total pressure

Option B: Humidity is < 100% & dew point temperature of air has not reached

Option C: Dew point temperature of air has not reached & air is not saturated fully

Option D: Air is fully saturated

Correct Answer: Air is fully saturated ✔

Option A: 2

Option B: 3

Option C: 0.8

Option D: 6

Correct Answer: 3 ✔

Option A: Precipitation of sulphur takes place

Option B: H2SO3 is formed

Option C: Oleum is formed

Option D: None of these

Correct Answer: Precipitation of sulphur takes place ✔

Option A: Complete unity of command exists in a line organisation

Option B: Line organisation is net suitable for expansion and growth of an industry

Option C: In line and staff organisation, “line” executes and “staff directs

Option D: None of these

Correct Answer: None of these ✔

Option A: Martensitic steels are less susceptible to pitting corrosion than austenitic steels

Option B: Pitting corrosion is usually very localised

Option C: Hydrogen embrittlement is facilitated by tensile stress

Option D: Stress corrosion cracking is facilitated by tensile stress

Correct Answer: Martensitic steels are less susceptible to pitting corrosion than austenitic steels ✔

Option A: Carbon and other alloying elements get oxidised from the weld pool

Option B: Excessive ferrite forms in the heat affected zone leading to poor toughness of the weld

Option C: Martensite forms in the heat affected zone leading to poor toughness/ductility of the weld

Option D: Segregation of carbon and other element occurs in the weld pool leading to poor properties of

Correct Answer: Martensite forms in the heat affected zone leading to poor toughness/ductility of the weld ✔

Option A: Nitrate

Option B: Sulphate

Option C: Carbonate

Option D: Chloride

Correct Answer: Nitrate ✔

Option A: Pressure change to temperature change occuring during adiabatic compression of a gas

Option B: Pressure change to temperature change occuring during adiabatic throttling of a gas

Option C: Temperature change to pressure change occuring during adiabatic compression of a gas

Option D: Temperature change to pressure change occuring during adiabatic throttling of a gas

Correct Answer: Temperature change to pressure change occuring during adiabatic throttling of a gas ✔

Option A: Hand trolley

Option B: Belt conveyor

Option C: Crane

Option D: Truck

Correct Answer: Belt conveyor ✔

Option A: Molecules with symmetrical arrangements (e.g. CH4 or CCl4) are non-polar

Option B: Generally, non-polar compounds are chemically inactive, conduct electricity poorly and do

Option C: Most of the hydrocarbons are non-polar

Option D: None of these

Correct Answer: None of these ✔

Option A: Hardness

Option B: Tensile

Option C: Toughness

Option D: Compressive

Correct Answer: Hardness ✔

Option A: Decreases with the increase of concentration of the solute

Option B: Increases with the increase of concentration of the solute

Option C: Remains constant

Option D: Is unity at infinite dilution

Correct Answer: Remains constant ✔

Option A: Floating hollow polypropylene spheres

Option B: Spraying alumina powder

Option C: Putting cement

Option D: None of these

Correct Answer: Floating hollow polypropylene spheres ✔

Option A: Δ G° = 0 , Δ H° = 0

Option B: Δ H° = 0 , Δ S° = 0

Option C: Δ S° = 0 , Δ E° = 0

Option D: Δ S° = 0 , Δ Cp° = 0

Correct Answer: Δ S° = 0 , Δ E° = 0 ✔

Option A: Internal energy

Option B: Enthalpy

Option C: Entropy

Option D: Temperature

Correct Answer: Entropy ✔

Option A: 0.015

Option B: 0.71

Option C: 1.2

Option D: 3.5

Correct Answer: 0.015 ✔

Option A: Ultraviolet radiation

Option B: High atmospheric temperature

Option C: High ambient temperature

Option D: Damp atmosphere

Correct Answer: Ultraviolet radiation ✔

Option A: x1.5

Option B: x0.8

Option C: x-1.5

Option D: x-0.8

Correct Answer: x0.8 ✔

Option A: 300

Option B: 800

Option C: 1400

Option D: 2000

Correct Answer: 1400 ✔

Option A: 0.01

Option B: 0.1

Option C: 0.25

Option D: 0.5

Correct Answer: 0.1 ✔

Option A: Finer

Option B: Coarser

Option C: Medium

Option D: Any type of

Correct Answer: Coarser ✔

Option A: R ln 2

Option B: -R ln 2

Option C: 3 R ln 2

Option D: -3R ln 2

Correct Answer: R ln 2 ✔

Option A: 1

Option B: 1.4

Option C: 1.5

Option D: Y = Cp/Cv

Correct Answer: 1 ✔

Option A: A

Option B: D

Option C: 1/A

Option D: 1/A2

Correct Answer: A ✔

Option A: Concentration

Option B: Velocity

Option C: Temperature

Option D: None of these

Correct Answer: Concentration ✔

Option A: (Load)1

Option B: (Load)2

Option C: (Load)3

Option D: (Load)0.33

Correct Answer: (Load)3 ✔

Option A: nλ = 2d Sin θ

Option B: λ = d Sin 2θ

Option C: λ = 2d Sin 2θ

Option D: nλ = d Sin θ

Correct Answer: nλ = 2d Sin θ ✔

Option A: Runner

Option B: Cylinder

Option C: Mold

Option D: None of these

Correct Answer: Runner ✔

Option A: d1/2

Option B: d-1/2

Option C: d

Option D: d-1

Correct Answer: d-1/2 ✔

Option A: Work hardening

Option B: Bauschinger effect

Option C: Creeping effect

Option D: Stress recovery effect

Correct Answer: Bauschinger effect ✔

Option A: Ductility

Option B: Semi-conductivity

Option C: Melting point

Option D: Yield stress

Correct Answer: Melting point ✔

Option A: 0.25

Option B: 0.45

Option C: 0.70

Option D: 0.95

Correct Answer: 0.70 ✔

Option A: Densities

Option B: Magnetic permeabilities

Option C: Electrical conductivities

Option D: Hardness

Correct Answer: Electrical conductivities ✔

Option A: Babbitt metal

Option B: Gun metal

Option C: Stainless steel

Option D: Duralumin

Correct Answer: Duralumin ✔

Option A: Gantt chart

Option B: Bin chart

Option C: String diagram

Option D: Travel chart

Correct Answer: Travel chart ✔

Option A: Orange yellow in alkaline medium

Option B: Orange yellow in acidic medium

Option C: Colourless in acidic medium

Option D: Colourless in basic medium

Correct Answer: Orange yellow in alkaline medium ✔

Option A: Parting

Option B: Synthetic

Option C: Loam

Option D: Dry

Correct Answer: Parting ✔

Option A: 100% indirect reduction

Option B: 100% direct reduction

Option C: 50-60% indirect reduction

Option D: 30-40% indirect reduction

Correct Answer: 50-60% indirect reduction ✔

Option A: K + S

Option B: K + S + K2Cr2O7

Option C: S + K2Cr2O7 + White P

Option D: None of these

Correct Answer: S + K2Cr2O7 + White P ✔

Option A: Pressure & temperature

Option B: Pressure & specific volume

Option C: Temperature & specific volume

Option D: Temperature only

Correct Answer: Pressure & temperature ✔

Option A: 4.4

Option B: 5.6

Option C: 8.4

Option D: 2.4

Correct Answer: 4.4 ✔

Option A: Stretchability

Option B: Drawability

Option C: Bendability

Option D: None of these

Correct Answer: Drawability ✔

Option A: Passive

Option B: Active

Option C: Capacitive

Option D: None of these

Correct Answer: Passive ✔

Option A: High speed steel

Option B: High carbon steel

Option C: Forged steel

Option D: Mild steel

Correct Answer: High carbon steel ✔

Option A: V/A

Option B: V/A2

Option C: V2/A

Option D: V2/A2

Correct Answer: V2/A ✔

Option A: Tin

Option B: Lead

Option C: Molybdenum

Option D: Chromium

Correct Answer: Tin ✔

Option A: A1 is more alkaline than solution A2

Option B: A1 is highly acidic

Option C: A2 is very slightly acidic

Option D: Both B. & C.

Correct Answer: D. Both B. & C. ✔

Option A: Boron carbide

Option B: Tungsten carbide

Option C: Hardened steel

Option D: Silicon carbide

Correct Answer: Boron carbide ✔

Option A: Manganese

Option B: Silicon

Option C: Carbon

Option D: Vanadium

Correct Answer: Carbon ✔

Option A: Casting

Option B: Pattern

Option C: Draft

Option D: Distortion

Correct Answer: Draft ✔

Option A: 50

Option B: 100

Option C: 150

Option D: 200

Correct Answer: 100 ✔