Emerging Trends in Electronics (ETE)-1

Multiple Choice Questions (MCQs)

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Recent Electronic Components

1   Statement 1: In Li-ion batteries, lithium ions move from the negative electrode to the positive electrode during discharge. Statement 2: In Li-ion batteries lithium ions move from the positive electrode to the negative electrode during charging. Select correct option for above statement
    (A)   Statement 1 is true but statement 2 is false
    (B)   Statement 2 is true but statement 1 is false
    (C)   Both statements are true
    (D)   Both statements are false

2   In Li-ion battery, the ____________ is/are lithium ion based
    (A)   Positive electrode
    (B)   Negative electrode
    (C)   Positive and negative electrode
    (D)   Electrolyte

3   A nuclear battery is a device which uses energy from the ________ to generate electricity
    (A)   Hydrocarbon
    (B)   Hydrogen
    (C)   Emission of radioactive isotopes
    (D)   Chain reaction of radioactive element

4   Compared to other batteries, nuclear batteries are very ______, but have an extremely ____ and high energy density
    (A)   Cheap, long life
    (B)   Costly, long life
    (C)   Cheap, short life
    (D)   Costly, short life

5   Surface-mount technology (SMT) is a method for producing ____ in which the components are mounted or placed directly onto the surface of ______
    (A)   Electric circuit, electric board
    (B)   Electronic circuit, printed circuit board
    (C)   Pneumatic circuit, pneumatic bench
    (D)   Instrumentation circuit, control panel

6   OLED stands for ______
    (A)   Organic Light emitting display
    (B)   Optical Light emitting display
    (C)   Organic Light emitting diode
    (D)   Optical Light emitting diode

7   In OLED, at least one of the electrodes is _______
    (A)   Reactive
    (B)   Transparent
    (C)   Passive
    (D)   Idle

8   OLEDs are used to create digital display in devices such as _______
    (A)   Only TV screens
    (B)   Only smart phones
    (C)   Only computer monitors
    (D)   All of above

9   Statement 1: An OLED display works without a backlight. Statement 2: Because OLED emits visible light. Select correct option for above statement
    (A)   Statement 1 is true but statement 2 is false
    (B)   Statement 2 is true but statement 1 is false
    (C)   Both statements are true
    (D)   Both statements are false

10   Memristor is defined by relation ______
    (A)   dφ = M*dq
    (B)   dq=C*dv
    (C)   dφ =L*di
    (D)   dv=R*di

11   The surface mount components are accurately placed onto the pads with the help of ____________
    (A)   Pick and place machine
    (B)   Manually
    (C)   Reflow Machine
    (D)   Printing Machine

12   Desirable feature of electronics components suitable for emerging applications is __________
    (A)   Higher power consumption
    (B)   Miniature size
    (C)   Lower operation speed
    (D)   Low operating frequency

13   _______allow more number of components placing on both sides of the flexible dielectric film
    (A)   Single sided flexible circuits
    (B)   Single mounted flexible circuits
    (C)   Double access flexible circuits
    (D)   Sculptured Flex circuits

14   Memristor features unique properties like _______ and _______
    (A)   Nonvolatile nature, linearity
    (B)   Volatile nature, non-linearity
    (C)   Volatile nature, linearity
    (D)   Nonvolatile nature, non-linearity

15   _______is considered as a subset of Memristor
    (A)   ROM
    (B)   ReRAM
    (C)   Static RAM
    (D)   DRAM

16   Hysteresis loop and ______ phase shift between current and voltage, at _____ are the significant features of Memristor
    (A)   0-degree, zero crossing
    (B)   90-degree, zero crossing
    (C)   45 degree, non-zero crossing
    (D)   180 degree, non-zero crossing

17   Memristor shows ________ relationship between voltage and current
    (A)   Linear
    (B)   Nonlinear
    (C)   Exponential
    (D)   Logarithmic

18   Currently OLED displays are made by ____________
    (A)   Evaporating gases in a vacuum chamber
    (B)   Evaporating liquid in a vacuum chamber
    (C)   Evaporating solid in a vacuum chamber
    (D)   Anodization

19   OLED displays are simpler than LCD because they do not require ________ or ________
    (A)   Power, filtering
    (B)   Power, diffusing
    (C)   Backlight, diffusing
    (D)   Backlight, filtering

20   In the cover lay of FPC, to reduce conductor damage from frequent bending, the thickness of the cover lay should be ______
    (A)   Same as the thickness of the dielectric layer
    (B)   More than the thickness of the dielectric layer
    (C)   Less than the thickness of the dielectric layer
    (D)   Independent of the thickness of the dielectric layer

21   A nuclear battery is a device which uses energy from the _________to generate electricity
    (A)   Hydrocarbon
    (B)   Hydrogen
    (C)   Emission of radioactive isotopes
    (D)   Chain reaction of radioactive element

22   ________is considered as a subset of Memristor 
    (A)   ROM
    (B)   ReRAM
    (C)   Static RAM
    (D)   DRAM

23   Currently OLED displays are made by_________
    (A)   Evaporating gases in a vacuum chamber
    (B)   Evaporating liquid in a vacuum chamber
    (C)   Evaporating solid in a vacuum chamber
    (D)   Anodization

24   ________ is the advantage of using Surface Mounting Technology (SMT). 
    (A)   Low power consumption
    (B)   Reduces heat dissipation
    (C)   Use micro miniature leaded or leadless components
    (D)   Easily fabricated on chip

25   In OLED, at least one of the electrode is_____________
    (A)   Reactive
    (B)   Transparent
    (C)   Passive
    (D)   Idle

26   In Li-ion battery, the _______is/are lithium ion based 
    (A)   Positive electrode
    (B)   Negative electrode
    (C)   Positive and negative electrode
    (D)   Electrolyte

27   A Both glassy and ceramic electrolyte can be made more ionically conductive by substituting_____ for oxygen. 
    (A)   Nitrogen
    (B)   Sulphur
    (C)   Carbon dioxide
    (D)   Hydrogen

28   A radioisotope thermoelectric generator (RTG) generally uses________
    (A)   RTD
    (B)   Thermistor
    (C)   Thermocouple
    (D)   Ultrasonic

29   __________ is not a Reflow soldering technique 
    (A)   Infrared lamp technique
    (B)   Hot gas convection
    (C)   Vapour phase reflow
    (D)   Cold liquid flow

30   OLED is also known as __________
    (A)   Organic LCD
    (B)   Organic EL diode
    (C)   Optical EL diode
    (D)   Optical LCD

31   _________ is an advanced display technology made from thin films of light emitting organic materials.
    (A)   SMD LED
    (B)   RGB LED
    (C)   OLED
    (D)   QLED

32   The technology for producing electronic circuits using SMD is called
    (A)   THT
    (B)   SMT
    (C)   OLED
    (D)   PDA

33   The surface mount components are accurately placed onto pads with the help of ________
    (A)   CNC Milling Machine
    (B)   CNC Plasma Cutting Machine
    (C)   Pick & Place Machine
    (D)   CNC Lathe Machine

34   AOI machine stands for _______________
    (A)   Automatic Operating Indicator
    (B)   Automatic Optic Inspection
    (C)   Automatic Organising Industry
    (D)   Automatic Operating Inspection

35   Nuclear Diamond Battery doesn’t have this commercial hurdle
    (A)   Initial cost of production
    (B)   Regional and country specific laws
    (C)   Profit margin
    (D)   Disposal of radioactive fuel

36   _______theoretically predicted that there must be a missing passive element establishing a relationship between flux and electric charge.
    (A)   Prof. Leon .O. Chua
    (B)   Albert Einstein
    (C)   Prof. Albert Macovski
    (D)   Prof. Brain Greene

37   A relationship between flux and electric charge of Memristor is given by__________equation.
    (A)   dq=C.dv
    (B)   dφ =L.di
    (C)   dv=R.di
    (D)   dφ = M dq

38   Memristor shows non- linear relationship between voltage and current which is exhibited by_________
    (A)   Continuous loop
    (B)   Hysteretic loop
    (C)   Closed loop
    (D)   Open loop

39   _________ successfully correlated the resemblance of memristor characteristics with those of nano scale ReRAM device.
    (A)   Prof. Chua
    (B)   Intel
    (C)   HP Team
    (D)   Albert Einstein

40   _______ is not one of the highlighting features ReRAM.
    (A)   Simple construction
    (B)   High packaging density
    (C)   High operating speed
    (D)   High operating voltages

41   A nuclear battery is also known as _______
    (A)   Atomic battery
    (B)   General battery
    (C)   Hazardous battery
    (D)   Toxic battery

42   Desirable feature for display devices is ________
    (A)   Low brightness
    (B)   Single colour
    (C)   Flexible nature
    (D)   Small size

43   Desirable feature of a battery is ______
    (A)   Large size
    (B)   Higher rating
    (C)   Slow charging
    (D)   Costly maintenance

44   _______Fulfils the requirement of high component density and Multilayer electrical connectivity.
    (A)   PCB
    (B)   Breadboard
    (C)   FPC
    (D)   Stripboard

45   Full form of FPC is ______________
    (A)   Fixed printed circuits
    (B)   Fixed programmable circuits
    (C)   Flexible programmable circuits
    (D)   Flexible printed circuits

46   Full form of PCB is_____________
    (A)   Programmable circuit boards
    (B)   Programmable conducting boards
    (C)   Printed circuit boards
    (D)   Printed conducting boards

47   The hearth of FPC is ______
    (A)   Flexible PCB
    (B)   Rigid PCB
    (C)   Single layered PCB
    (D)   Double layered PCB

48   Batteries used in space can be recharged by solar cells which converts______ energy into electrical energy.
    (A)   Chemical
    (B)   Solar
    (C)   Mechanical
    (D)   Kinetic

49   For very high temperature applications PEEK is used which is from _______ Family.
    (A)   PAK family
    (B)   PEAK family
    (C)   PAEK family
    (D)   Nitrile family

50   ________material is not use in rechargeable batteries.
    (A)   Nickel – cadmium
    (B)   Silicon – cadmium
    (C)   Nickel metal hydride
    (D)   Lithium – ion

51   _______soldering is the most widely used method of attaching surface mount components to printed circuit boards (PCBs).
    (A)   Wave
    (B)   Reflow Optical Light emitting display
    (C)   Pick and place
    (D)   Machine

52   A ________ is a machine used primarily for reflow soldering of surface mount electronic components to printed circuit boards (PCB).
    (A)   Reflow oven
    (B)   Wave oven
    (C)   Microwave oven
    (D)   Soldering oven

53   Preheat is the_____ stage of the reflow process.
    (A)   Second
    (B)   Third Optical Light emitting display
    (C)   First
    (D)   Fourth

54   Surface-mount technology (SMT) is a method for producing _______ in which the components are mounted or placed directly onto the surface of …….
    (A)   Electric circuit, electric board
    (B)   Electronic circuit, printed circuit board Optical Light emitting display
    (C)   Pneumatic circuit, pneumatic bench
    (D)   Instrumentation circuit, control pane

55   With surface mount technology (SMT) the devices should ________
    (A)   Mount directly
    (B)   Have parallel connecting pins
    (C)   Requires holes and pads
    (D)   Requires PTH

56   ________ runs a number of quality checks for the boards visually, such as component alignment and checking for solder bridges
    (A)   Reflow oven
    (B)   SMD machine Optical Light emitting display
    (C)   Automatic Optic Inspection machine
    (D)   Solder paste printer

57   In SMD the wattage required for soldering iron is______
    (A)   25 to 50 watt
    (B)   15 to 25 watt Optical Light emitting display
    (C)   15 to 30 watt
    (D)   10 to 50 watt

58   For an IC, in a data sheet SMD stands for ______________
    (A)   Surface mount device
    (B)   Synchronous mode device
    (C)   Serial mode data
    (D)   Single memory device

59   Identify the SMD component

    (A)   SMD Resistor
    (B)   SMD Resistor network Optical Light emitting display
    (C)   SMD capacitor
    (D)   Leadless Ceramic Chip Carriers

60   OLED stands for __________
    (A)   Organic Light emitting display
    (B)   Optical Light emitting display Optical Light emitting display
    (C)   Organic Light emitting diode
    (D)   Optical Light emitting diode Optical Light emitting diode

61   In OLED, at least one of the electrodes is ________
    (A)   Idle
    (B)   Transparent
    (C)   Active
    (D)   Passive

62   OLED displays provide_____ power consumption compared to LCD
    (A)   Lower
    (B)   Higher
    (C)   Medium
    (D)   Zero

63   Identify the symbol of component used for emerging application.

    (A)   Resistor
    (B)   Compact disc
    (C)   Memristor
    (D)   OLED

64   Memristor give________ relationship between voltage and current which is exhibited by a hysteretic loop
    (A)   Linear
    (B)   Non linear
    (C)   Inversely proportional
    (D)   Directly proportional

65   Memristor is proposed to develop real-time data analysis in _______network and______ applications.
    (A)   Neural, neuromorphic
    (B)   Computer, numeric
    (C)   Telecommunication, mobile
    (D)   Data, internet

66   A Lithium-ion battery is rechargeable electrochemical battery converting ________ energy into ______ energy
    (A)   Chemical, electrical
    (B)   Mechanical, electrical
    (C)   Electrical, mechanical
    (D)   Negative, positive

67   Mostly Non-aqueous electrolyte is used in Li-ion battery because _______
    (A)   Aqueous medium is not conductive
    (B)   Non aqueous medium is conductive
    (C)   Pure lithium is very inactive
    (D)   Pure lithium is very reactive

68   In Li-ion battery, the ………………. is/are lithium ion based
    (A)   Negative Electrode
    (B)   Positive electrode
    (C)   Positive & Negative Electrode
    (D)   Electrolyte electrode

69   A nuclear battery uses energy from________ to generate electricity.
    (A)   Hydrocarbon
    (B)   Decay of radioactive isotope
    (C)   Hydrogen
    (D)   Chain reaction of radioactive element

70   Nuclear batteries are very ____but have an extremely ______ and high energy density compared to other batteries.
    (A)   Cheap, short life
    (B)   Costly, short life
    (C)   Cheap, long life
    (D)   Costly, long life

71   Nuclear batteries are used in _____applications due to its compact in size and light weight and long lasting reliable voltage supply, independent of atmospheric conditions.
    (A)   Space
    (B)   Medical
    (C)   Defence
    (D)   Industry

72   Printed circuit board are delivered from one place to other place in plastic or paper protection because of development of_______________
    (A)   Leakage current
    (B)   Water drop
    (C)   Dynamic charge
    (D)   Static Charge

73   Flex PCB design requires______% of the space and weight of an ordinary circuit board assembly,
    (A)   50
    (B)   20
    (C)   10
    (D)   75

74   Commonly used dielectric substrate material is_________
    (A)   Polyester
    (B)   Rubber
    (C)   Mica
    (D)   Polymer

75   _______are the heart of Flexible Printed Circuits.
    (A)   Dielectric PCBs
    (B)   Flexible PCBs
    (C)   Double sided PCBs
    (D)   Single sided PCBs

76   ___________material has excellent high temperature characteristics.
    (A)   Phenolic
    (B)   Acrylics
    (C)   Polyimide
    (D)   Polyester

77   Rigid-Flex Circuits boards are used in _____application for __reliability.
    (A)   Defence, high
    (B)   Defence, low
    (C)   Space, low
    (D)   Space, high

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