RFID Technology MCQs

RFID Technology MCQs

Answer these 30 RFID Technology MCQs and see how sharp is your knowledge of RFID Technology.
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1: Measurement of power for radiation of antenna used in US

A.   Equivalent Isotropic Radiated Power (EIRP)

B.   Types of Tag Frequencies

C.   Modulation Circuitry

D.   Slotted ALOHA

2: Also called a fixed reader - Mounted on a wall - portal - or some suitable structure in the read zone. Readers not generally very tolerant of harsh environmental conditions - therefore if installed outdoors or on moving objects - take care to ruggedi

A.   Passive Backscatter (Capacitive Coupling)


C.   Memory

D.   Stationary Reader

3: Smart cards - smart label - etc.

A.   Destructive Interference

B.   Types of tags

C.   Tag Standards

D.   Reader Antennas

4: Mount the tiny chip to a strap - Greater handling ability - Possibility to use very small chips - Possibility of higher volume production - Fluidic Self Assembly

A.   Adaptive Binary Tree Anti-Collision

B.   Foil Stamping

C.   Strap-to-Tag

D.   Inductive Coupling

5: Determines the read zone of a reader - Also called an antenna pattern - 3D region shaped somewhat like an ellipsoid or a balloon projecting out the front of the antenna. Never uniformly shaped like an ellipsoid but almost always contains deformities

A.   Nulls(Voids)

B.   Polarization

C.   RFID Reader

D.   Antenna Footprint

6: Type of stationary reader that can print a bar code and create (i.e. write) an RFID tag on a smart label in an integrated operation - Reads the smart label tag that it has just written to validate the write operation. If the validation fails - it rej

A.   Agile Reader

B.   PLC

C.   Memory

D.   RFID Printer

7: One of the most versatile actuators. Widely used in manufacturing plants. They enable a variety of actions to be performed (such as monitoring and controlling a product packaging line - or applying a predetermined amount of torque to nuts in a mechan

A.   PLC

B.   Flip-chip (Chip-to-Tag)

C.   Types of Tag Frequencies

D.   Circular Polarized Reader Antenna

8: IC Chip - Antenna/Inductor - Power Source

A.   Decommissioning The Tag

B.   Dry Inlay

C.   Main Components of RFID Tag

D.   Tag

9: In this this antenna type - the RF waves emanate in a linear pattern from the antenna. Waves have only one energy field

A.   Reader Antennas

B.   UHF

C.   Linear Polarized Antenna

D.   RFID Reader

10: A mechanical device for controlling or moving objects - A programmable logic controller (PLC) - robot arm - mechanical arm - etc.

A.   Actuator

B.   Circular Polarized Antenna

C.   Pattern(Footprint)

D.   Power Source

11: Readability of a tag greatly depends on this and the angle at which the tag is presented to the reader

A.   Polarization

B.   Processor

C.   Reader Antennas

D.   Passive Communication Methods

12: The orientation of the transmitted electromagnetic field or the direction of oscillation of electromagnetically emitted waves

A.   Polarization

B.   Characteristics Of Antennas That Contribute To Tag Readability

C.   Types of Tag Frequencies

D.   Smart Label

13: Image "burned" into photopolymer layer. All copper removed except where image was burned. Copper antenna goes through additional processes to protect from oxidation

A.   Characteristics Of Antennas That Contribute To Tag Readability

B.   Microprocessor

C.   Polarization

D.   Copper Etching

14: An electronic signal or indicator - Audible alarms - strobes - light stacks - etc.

A.   Tag Standards

B.   Annunciator

C.   Linear Polarized Antenna


15: Die-cut web adhesive - paper face

A.   RFID Printer

B.   Antenna Footprint

C.   Tag Collision

D.   Tag

16: When two waves (out of phase) impose on each other and the original signal is cancelled. Nulls are created s a result

A.   Reader Antennas

B.   Agile Reader

C.   Destructive Interference

D.   Pattern(Footprint)

17: Broadcasts the reader transmitter's RF signal into its surroundings and receives tag responses on the reader's behalf. Therefore - proper positioning of these (NOT THE READERS) is essential for good read accuracy

A.   Reader Antenna

B.   Serial Reader

C.   Tag Standards

D.   Decommissioning The Tag

18: This type of antenna is largely unaffected by tag orientation - Preferred in system that uses high UHF or microwave frequencies in an operating environment where there is a high degree of RF reflectance (due to presence of metals and so forth)

A.   Reader Collision

B.   Microwave Frequency

C.   Transmitter

D.   Circular Polarized Antenna

19: RF energy radiates from antenna in linear fashion - Provide longest range - Sensitive to the orientation of tag - Has single E-field component - Can have a narrow beam pattern - Best for application with known tag orientation

A.   RFID Reader

B.   Linear Polarized Reader Antenna

C.   Copper Etching

D.   Polarization

20: Reader that can operate in different frequencies or can use different tag-to-reader communication protocols (generally stationary)

A.   Main Components of RFID Tag

B.   Autonomous Mode

C.   Agile Reader

D.   Creating A Tag

21: Frequencies between 30-300 KHz - Generally use passive tags - have low data-transfer rates from the tag to the reader - and are especially good if the operating environment contains metals - liquids - dirt - snow - or mud. Active tags also available

A.   Adaptive Binary Tree Anti-Collision

B.   Multipath

C.   Duty Cycle

D.   Low Frequency (LF)

22: When two waves (in phase) impose on each other and enhance the original signal and give rise to protrusions

A.   Creating A Tag

B.   Wet Inlay

C.   Constructive Interference

D.   Main Components of RFID Tag

23: Divides time into discrete time intervals (slots) . A packet can only be transmitted at the beginning of a slot - reduces the collision duration.

A.   Slotted ALOHA

B.   Tag

C.   Interactive Mode

D.   Serial Reader

24: Controls the internal functions under the command of the processor

A.   Control Circuitry

B.   Integrated Circuit Chips

C.   Microprocessor


25: Reader receives and executes commands from an application running on a host machine from a user using a vendor-supplied client to communicate with the reader. After reader fully executes the current command - it waits for the next. Reader can execute

A.   Interactive Mode

B.   Passive Backscatter (Capacitive Coupling)

C.   Serial Reader

D.   Polarization

26: Class= Functionality - - Class 0 -1 -2 -3 -4 & 5

A.   Reader Antennas

B.   Wet Inlay

C.   Circular Polarized Antenna

D.   Tag class

27: Provides electrical power to other tag elements - Can harvest power from the signal received from the reader - Can have its own internal power source - Active - semi-passive and passive

A.   Power Source

B.   Reader Antennas

C.   Dry Inlay

D.   Tag Standards

28: 'Central nervous system' of entire RFID hardware system. Establishing communication with and control of this component is the most important task of any entity which seeks integration

A.   Duty Cycle

B.   Tag List

C.   Tag

D.   RFID Reader

29: Every time a tag is read - it is saved to this

A.   Tag List

B.   RFID Printer

C.   Strap-to-Tag

D.   Dry Inlay

30: Why ___________ is better: Cost of printed antennas varies between 24-44% of copper antennas - Printed antennas show 93-96% radiation efficiency compared to copper antennas...

A.   Slotted ALOHA

B.   Annunciator

C.   RFID Reader

D.   Tag Antenna Construction