Nano Wires, Nano Cones and Neutralization Acidic Number MCQs

By: Prof. Dr. Fazal Rehman | Last updated: February 3, 2024

Solved MCQs on Nano Wires, Nano Cones, and Neutralization Acidic Number in Applied Chemistry.

In ___, the nan- wires are used.
(A). Capacitors
(B). Resistors
(C). Transistors
(D). Transducers
(E). None of these
Multiple Choice Question Answer:  Transistors
Predominant structures made with ___ are called nano cones.
(A). Silicon
(B). Nitrogen
(C). Hydrogen
(D). Carbon
(E). None of these
Multiple Choice Question Answer:  Carbon
___is the diameter of the nano-wire.
(A). 10^-6m
(B). 10^-9m
(C). 10^-8m
(D). 10^-3m
(E). None of these
Multiple Choice Question Answer:  10-9m
____are the superconducting wires.
(A). Pt
(B). Ni
(C). YBCO
(D). Au
(E). None of these
Multiple Choice Question Answer: YBCO
In ____, a suspended nano-wire is produced.
(A). Air medium
(B). High vaccum chamber
(C). Low vaccum chamber
(D). Vaccum
(E). None of these
Multiple Choice Question Answer:  High vaccum chamber
For welding purposes, those nano meters whose diameters less than ___ are used.
(A). 30nm
(B). 20nm
(C). 10nm
(D). 40nm
(E). None of these
Multiple Choice Question Answer:  10nm
______of the lubricating oil cannot be given by the neutralization number.
(A). Moisture level
(B). Amount of acid
(C). Amount of base
(D). Corrosive nature
(E). None of these
Multiple Choice Question Answer:  Corrosive nature
______are the preferred opening angles of nanocones.
(A). 20, 30, 40
(B). 20, 40, 50
(C). 20, 40, 80
(D). 20, 40, 60
(E). None of these
Multiple Choice Question Answer:  20, 40, 60
_____is formed by the fatty oils.
(A). Glycerine
(B). Ethanol
(C). Glycerol
(D). Glycerol
(E). None of these
Multiple Choice Question Answer:  Glycerol
With the time acid content____
(A). Decreases
(B). Becomes zero
(C). Remains constant
(D). Increases
(E). None of these
Multiple Choice Question Answer:  Increases
The next step is to build___if the pn_junctions were built with nano-wires.
(A). Transistors
(B). Transducers
(C). Resistors
(D). Logic gates
(E). None of these
Multiple Choice Question Answer:  Logic gates
Lasers are one of the applications of nano-wires.
(A). True
(B). False
(E). None of these
Multiple Choice Question Answer: True
There are high neutralization values that compounded oils contain.
(A). False
(B). True
(E). None of these
Multiple Choice Question Answer:  True
Due to the presence of ____ the blended oils contain the higher values.
(A). Catalyst
(B). Additives
(C). Salts
(D). Reagents
(E). None of these
Multiple Choice Question Answer:  Additives
Due to ____, the neutralization number is increased.
(A). Pureness
(B). Catalysis
(C). Hydrolysis
(D). Contamination
(E). None of these
Multiple Choice Question Answer: Contamination
Due to ____, the darkening of the oil color takes place.
(A). Hydrolysis
(B). Reduction
(C). Oxidation
(D). Catalysis
(E). None of these
Multiple Choice Question Answer:  Oxidation
By ____, the total acid number of oil can be given. suppose Wt is the weight of oil taken and Wu is the weight of oil used.
(A). Acid value = (vol of 0.1N KOH used*56)/(Wt)
(B). Acid value = (vol of 0.01N KOH used*56)/(Wt)
(C). Acid value = (vol of 0.1N KOH taken*56)/(Wu)
(D). Acid value = (vol of 0.01N KOH taken*56)/(Wu)
(E). None of these
Multiple Choice Question Answer:  Acid value = (vol of 0.1N KOH used*56)/(Wt)
To indicate the progress of ____ the periodic determination of acid number is used.
(A). Acidic number
(B). Reduction number
(C). Oxidation number
(D). Neutralisation number
(E). None of these
Multiple Choice Question Answer:  Oxidation number
The acid value must be less than____ of the lubricating oil.
(A). 0.1
(B). 0.7
(C). 1
(D). 7
(E). None of these
Multiple Choice Question Answer:  0.1
There must be ___ neutralization values for the unblended petroleum oils.
(A). Very high
(B). Zero
(C). Negligible
(D). Very low
(E). None of these
Multiple Choice Question Answer:  Very low
By the process of ____, the other parameters apart from the acid number can also be determined.
(A). Potentiometer titration
(B). Colour indicating titration
(C). Catalysis
(D). Spectroscopic methods
(E). None of these
Multiple Choice Question Answer:  Spectroscopic methods
___ in lubricating oil is the reason of corrosion problems.
(A). Potassium chloride
(B). Carbon dioxide
(C). Sodium chloride
(D). Naphthenic acid
(E). None of these
Multiple Choice Question Answer:  Naphthenic acid
The sample is dissolved in ___ and ____ in potentiometric titration.
(A). Toulene and benzene
(B). Toulene and phenolphthalein
(C). Toulene and phenol
(D). Toulene, propanol
(E). None of these
Multiple Choice Question Answer: Toulene, propanol

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