Chemical Engineering Basics MCQs

Option A: Proteins

Option B: Carbohydrates

Option C: Vitamins

Option D: Fats

Correct Answer: Proteins ✔

Option A: 0.5

Option B: 2

Option C: √2

Option D: √3/2

Correct Answer: 0.5 ✔

Option A: Isobaric

Option B: Polytropic

Option C: Isentropic

Option D: None of these

Correct Answer: None of these ✔

Option A: Enthalpy

Option B: Relative humidity

Option C: Wet bulb temperature

Option D: Dew point temperature

Correct Answer: Dew point temperature ✔

Option A: Electrochemical deposition

Option B: Gaseous reduction

Option C: Atomisation

Option D: Mechanical attrition

Correct Answer: Atomisation ✔

Option A: Its higher boiling point (290°C) increases its heat carrying capacity

Option B: Comparatively less weight of coolant is required

Option C: Smaller radiator can be used

Option D: All a, b & c

Correct Answer: All a, b & c ✔

Option A: Oxide only

Option B: Sulphate only

Option C: Oxide and sulphate

Option D: Dependent on temperature and partial pressure of oxygen & sulphur dioxide

Correct Answer: Oxide only ✔

Option A: Boring

Option B: Counter boring

Option C: Drilling

Option D: Enlarging

Correct Answer: Drilling ✔

Option A: Full annealing

Option B: Bright annealing

Option C: Patenting

Option D: None of these

Correct Answer: Patenting ✔

Option A: Inventory control

Option B: Production schedule

Option C: Sales forecasting

Option D: Quality control

Correct Answer: Production schedule ✔

Option A: Joule

Option B: Carnot

Option C: Rankine

Option D: Brayton

Correct Answer: Rankine ✔

Option A: Cation speed

Option B: Atomic number of the cation

Option C: Equivalent mass of the electrolyte

Option D: None of these

Correct Answer: Equivalent mass of the electrolyte ✔

Option A: Tension

Option B: Compression

Option C: Torsion

Option D: Shear

Correct Answer: Tension ✔

Option A: Almost same for all metals

Option B: Different for different metals

Option C: Less for low melting point metals

Option D: Less for high melting point metals

Correct Answer: Almost same for all metals ✔

Option A: Admiralty brass

Option B: Stainless steel

Option C: Aluminium brass

Option D: Titanium

Correct Answer: Stainless steel ✔

Option A: 200 BTU/minute

Option B: 50 kcal/minute

Option C: 50 kJ/sec

Option D: 3.5 KW

Correct Answer: 50 kJ/sec ✔

Option A: p

Option B: 2 p

Option C: 0.5 p

Option D: 0.25 p

Correct Answer: p ✔

Option A: Both specific humidity & dry bulb temperature increases

Option B: Both specific humidity & dry bulb temperature decreases

Option C: Specific humidity decreases & dry bulb temperature increases

Option D: Specific humidity increases & dry bulb temperature decreases

Correct Answer: Specific humidity decreases & dry bulb temperature increases ✔

Option A: Tin

Option B: Copper

Option C: Zinc

Option D: Aluminium

Correct Answer: Copper ✔

Option A: Impact

Option B: Cupping

Option C: Hardness

Option D: Tensile

Correct Answer: ✔

Option A: Same crystalline structure

Option B: Same valency

Option C: Widely differing electronegativity

Option D: Same atomic sizes

Correct Answer: Widely differing electronegativity ✔

Option A: Critical point

Option B: Curie temperature

Option C: Inversion temperature

Option D: Eutectic temperature

Correct Answer: Curie temperature ✔

Option A: Creep

Option B: Fatigue

Option C: Endurance

Option D: Tensile

Correct Answer: Fatigue ✔

Option A: Hardness & tensile strength

Option B: Carbon content

Option C: Iron content

Option D: Alloying elements content

Correct Answer: Alloying elements content ✔

Option A: High precision components with complex cavities and sharp features

Option B: Components of large size

Option C: Porosity free components

Option D: Components of such alloys whose constituents do not form alloys readily

Correct Answer: Porosity free components ✔

Option A: More

Option B: Less

Option C: Same

Option D: More but less than the diameter of bolt

Correct Answer: More ✔

Option A: Steel plant

Option B: Textile factory

Option C: Petroleum refinery

Option D: Coke oven battery

Correct Answer: Textile factory ✔

Option A: Retained austenite

Option B: Martensite formation

Option C: Relatively high sulphur content in the base metal

Option D: Sufficient hydrogen present in the welding arc

Correct Answer: Martensite formation ✔

Option A: Viscous force

Option B: Gravity force

Option C: Hydrostatic force

Option D: Surface tension force

Correct Answer: Viscous force ✔

Option A: Frequency

Option B: Amplitude

Option C: Damping

Option D: None of these

Correct Answer: Frequency ✔

Option A: Intensifies deterioration

Option B: Changes the composition of the metal

Option C: Inhibits further deterioration

Option D: None of these

Correct Answer: Inhibits further deterioration ✔

Option A: Machinability

Option B: Toughness

Option C: Internal stress level

Option D: Softness

Correct Answer: Machinability ✔

Option A: (r2 – r1)/r1. r2

Option B: r1. r2/(r2 – r1)

Option C: (r2 + r1)/r1. r2

Option D: r1. r2/(r2 + r1)

Correct Answer: B. r1. r2/(r2 – r1) ✔

Option A: A high temperature neutral gas

Option B: Nothing but ionised gas

Option C: A source of steady and highest controllable pressure

Option D: Formed at very low temperature

Correct Answer: Nothing but ionised gas ✔

Option A: Conductor

Option B: Insulator

Option C: Semi-conductor

Option D: None of these

Correct Answer: Semi-conductor ✔

Option A: Wrought

Option B: Tool

Option C: Alloy

Option D: Plain carbon

Correct Answer: Plain carbon ✔

Option A: Ore

Option B: Electrical power

Option C: Labour

Option D: Abundant water

Correct Answer: Electrical power ✔

Option A: Blow off cock

Option B: Feed check valve

Option C: Feed water pump

Option D: Stop valve

Correct Answer: Feed water pump ✔

Option A: 30°

Option B: 60°

Option C: 90°

Option D: 120°

Correct Answer: 90° ✔

Option A: Are magnetised by eddy currents only

Option B: Are non-magnetic and cannot be magnetised

Option C: Are magnetised in direction opposite to the magnetic field

Option D: Can be magnetised in one direction only

Correct Answer: Are magnetised in direction opposite to the magnetic field ✔

Option A: Decrease in dislocation density

Option B: Increase in solutionising temperature

Option C: Increase in strength

Option D: Decrease in grain size

Correct Answer: Decrease in grain size ✔

Option A: Temperature – entropy

Option B: Temperature – pressure

Option C: Enthalpy – entropy

Option D: Enthalpy-pressure

Correct Answer: A. Temperature – entropy ✔

Option A: Manganese

Option B: Magnesium

Option C: Vanadium

Option D: Copper

Correct Answer: Manganese ✔

Option A: Face centred

Option B: Simple cubic

Option C: Body centred

Option D: None of these

Correct Answer: Face centred ✔

Option A: H2SO4

Option B: NaOH

Option C: NH3

Option D: HCl

Correct Answer: NaOH ✔

Option A: Case carburising

Option B: Tempering

Option C: Normalising

Option D: Annealing

Correct Answer: Tempering ✔

Option A: Less than the wet bulb temperature

Option B: More than the wet bulb temperature

Option C: Equal to the wet bulb temperature

Option D: Equal to the ambient temperature

Correct Answer: More than the wet bulb temperature ✔

Option A: H+ ions are absent

Option B: OH- ions are absent

Option C: Both H+ and OH- ions are present in very small but equal concentration

Option D: None of these

Correct Answer: Both H+ and OH- ions are present in very small but equal concentration ✔

Option A: Annealing

Option B: Toughening

Option C: Work hardening

Option D: Tempering

Correct Answer: Annealing ✔

Option A: Styrofoam

Option B: Lucite

Option C: Perspex

Option D: Plexiglass

Correct Answer: Styrofoam ✔

Option A: 5

Option B: 10

Option C: 20

Option D: 40

Correct Answer: 10 ✔

Option A: Length

Option B: Shank diameter

Option C: Head diameter

Option D: None of these

Correct Answer: Length ✔

Option A: Dew point

Option B: Dry bulb

Option C: Wet bulb

Option D: None of these

Correct Answer: Wet bulb ✔

Option A: Magnesite

Option B: Chrome

Option C: Silica

Option D: Fireclay

Correct Answer: Silica ✔

Option A: 1

Option B: 10

Option C: 30

Option D: 50

Correct Answer: 1 ✔

Option A: Adiabatic

Option B: Quasi-static

Option C: Isothermal

Option D: Isentropic

Correct Answer: Quasi-static ✔

Option A: t = 15 – 0.0065 h

Option B: t = 15 + 0.0065 h

Option C: t = 0.0035 h – 15

Option D: t = 15 – 0.0035 h

Correct Answer: A. t = 15 – 0.0065 h ✔

Option A: Forward curved

Option B: Backward curved

Option C: Double curved

Option D: Radial or straight

Correct Answer: Backward curved ✔

Option A: A, C, B, D

Option B: D, B, C, A

Option C: D, C, B, A

Option D: D, A, B, C

Correct Answer: D, B, C, A ✔

Option A: Amorphous

Option B: Cellular

Option C: Homogeneous

Option D: Granular

Correct Answer: Cellular ✔

Option A: Compared to the mass flow rate of cooling water, the rate of condensation of steam is

Option B: Maintaining vacuum on tube side is more difficult than that on the shell side

Option C: Water velocity can be increased conveniently to increase the overall heat transfer co-efficient

Option D: Condenser can act as a storage unit for condensed steam

Correct Answer: Water velocity can be increased conveniently to increase the overall heat transfer co-efficient ✔

Option A: Sintering

Option B: Casting

Option C: Cold heading

Option D: Spinning

Correct Answer: Cold heading ✔

Option A: Highly stressed parts

Option B: Gauges or precision parts

Option C: Cold rolled sheets

Option D: Non machinable materials

Correct Answer: Gauges or precision parts ✔

Option A: Flatness

Option B: Angle

Option C: Rotor balancing

Option D: Roughness

Correct Answer: Angle ✔

Option A: Turbulent

Option B: Viscous

Option C: Gravity

Option D: Pressure

Correct Answer: Turbulent ✔

Option A: Profit maximisation

Option B: Customer satisfaction

Option C: Cost reduction

Option D: Process improvement

Correct Answer: Customer satisfaction ✔

Option A: TNT

Option B: CMC

Option C: RDX

Option D: Lead azide

Correct Answer: CMC ✔

Option A: 0°

Option B: 32°

Option C: 62°

Option D: 212°

Correct Answer: 32° ✔

Option A: Iron and steel

Option B: Cement

Option C: Glass

Option D: Fertiliser

Correct Answer: Fertiliser ✔

Option A: Mild steel

Option B: Stainless steel

Option C: Carbides

Option D: High carbon steel

Correct Answer: Mild steel ✔

Option A: High fusibility & fluidity

Option B: High thermal conductivity

Option C: Low density

Option D: High chemical activity

Correct Answer: High thermal conductivity ✔

Option A: Kudremukh

Option B: Kolar

Option C: Khetri

Option D: Ramagundam

Correct Answer: Khetri ✔

Option A: Soldering

Option B: Welding

Option C: Brazing

Option D: Riveting

Correct Answer: Soldering ✔

Option A: Chalcocite

Option B: Bauxite

Option C: Galena

Option D: None of these

Correct Answer: Bauxite ✔

Option A: Critical

Option B: Breeder

Option C: Fertile

Option D: Heterogeneous

Correct Answer: Breeder ✔

Option A: Are good conductor of heat & electricity

Option B: Act as electron donors with metals & as electron acceptor with non-metals

Option C: Are not necessarily solids at room temperature

Option D: Are compounds that exhibit both metallic & non-metallic properties to some extent and are

Correct Answer: D. Are compounds that exhibit both metallic & non-metallic properties to some extent and are
exemplified by elements like germanium, silicon & boron ✔

Option A: Increase fluidity of solder by lowering its melting temperature

Option B: Prevent oxide formation

Option C: Wash away surplus solder

Option D: Full up the joint gap

Correct Answer: Prevent oxide formation ✔

Option A: Kerosene

Option B: Water

Option C: Sodium stearate

Option D: Lime water

Correct Answer: Sodium stearate ✔

Option A: Solid dispersed in gas

Option B: Solid dispersed in liquid

Option C: Liquid dispersed in gas

Option D: Gas dispersed in liquid

Correct Answer: Liquid dispersed in gas ✔

Option A: Forging

Option B: Shell moulding

Option C: Investment casting

Option D: Pressure die casting

Correct Answer: Investment casting ✔

Option A: Hot rolled mild

Option B: Cold rolled mild

Option C: Forged

Option D: Machinable stainless

Correct Answer: Cold rolled mild ✔

Option A: Uniform strength in all directions

Option B: Ability to hold protective coating

Option C: High ductility & corrosion resistance

Option D: Easily weldable characteristics

Correct Answer: Uniform strength in all directions ✔

Option A: Positively charged

Option B: Negatively charged

Option C: Neutral

Option D: Of higher wavelength than visible light

Correct Answer: Neutral ✔

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

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

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

Option D: Hollow ram is used for indirect extrusion

Correct Answer: Hollow ram is used for indirect extrusion ✔

Option A: Thermal

Option B: Electrical

Option C: Mechanical

Option D: Chemical

Correct Answer: Electrical ✔

Option A: Pipe roughness & pipe diameter

Option B: Fluid velocity

Option C: Type of flowing fluid

Option D: Both B. & C.

Correct Answer: D. Both B. & C. ✔

Option A: Electrostatic precipitator

Option B: Wet scrubber

Option C: Bag filter

Option D: Gravity settling chamber

Correct Answer: Wet scrubber ✔

Option A: Crusher

Option B: wet classifier

Option C: Dry classifier

Option D: Magnetic separator

Correct Answer: wet classifier ✔

Option A: High pressure & load

Option B: Low pressure & load

Option C: High temperature

Option D: Large surface wear

Correct Answer: High pressure & load ✔

Option A: 100

Option B: 200

Option C: 1000

Option D: 2000

Correct Answer: 200 ✔

Option A: Spherical

Option B: Nodular

Option C: Irregular

Option D: No preferred shape

Correct Answer: Spherical ✔

Option A: Beryllium

Option B: Zirconia

Option C: Alumina

Option D: Magnesia

Correct Answer: Alumina ✔

Option A: X-rays

Option B: γ-rays

Option C: α-rays

Option D: β-rays

Correct Answer: γ-rays ✔

Option A: Grouting

Option B: Eyebolt

Option C: Anchor bolts

Option D: Refractory castables

Correct Answer: Anchor bolts ✔

Option A: Abrasion resistant

Option B: Corrosion resistant

Option C: Prone to season cracking

Option D: Machinable

Correct Answer: Corrosion resistant ✔

Option A: Pipe length

Option B: Pipe roughness

Option C: Fluid density & viscosity

Option D: Mass flow rate of fluid

Correct Answer: Pipe length ✔

Option A: Lap joint

Option B: Butt joint

Option C: Either A. or B.

Option D: Neither A. nor B.

Correct Answer: Butt joint ✔

Option A: Velocity

Option B: Acceleration

Option C: Both A. & B.

Option D: Neither A. nor B.

Correct Answer: Acceleration ✔

Option A: Lead

Option B: Glass

Option C: Mica

Option D: Silver

Correct Answer: Lead ✔

Option A: pH value

Option B: Electrical conductivity

Option C: Turbidity

Option D: Dissolved oxygen content

Correct Answer: Electrical conductivity ✔