#1
What is the main purpose of electrical connectors in electronic devices?
To connect electrical circuits together
ExplanationFacilitate the connection of electrical circuits.
#2
Which of the following connectors is commonly used for connecting peripheral devices to computers?
USB connector
ExplanationWidely utilized for peripheral-to-computer connections.
#3
What does the 'IEC' in IEC 60320, a standard for appliance couplers, stand for?
International Electrotechnical Commission
ExplanationAbbreviation for International Electrotechnical Commission.
#4
In the context of RJ45 connectors, what does 'RJ' stand for?
Registered Jack
ExplanationStands for Registered Jack in RJ45 connectors.
#5
What does the 'AWG' stand for in the context of electrical wire sizes?
American Wire Gauge
ExplanationAbbreviation for American Wire Gauge.
#6
What is the primary purpose of the IP (Ingress Protection) rating system for electrical connectors?
To classify the levels of sealing effectiveness against foreign bodies and moisture
ExplanationRates sealing effectiveness against foreign bodies and moisture.
#7
In the context of USB connectors, what does the term 'USB Type-C' primarily refer to?
The shape and electrical configuration of the USB connector
ExplanationRefers to the shape and electrical configuration of the USB connector.
#8
Which of the following is NOT a characteristic of fiber optic connectors?
Limited to short-distance communication
ExplanationNot restricted to short-distance communication.
#9
Which component is essential for grounding in electrical connectors to ensure safety?
Earth pin
ExplanationCritical for grounding and safety in electrical connectors.
#10
What is the significance of the 'UL' listing for electrical connectors in the United States?
It denotes that the product has been tested for safety by Underwriters Laboratories
ExplanationIndicates safety testing by Underwriters Laboratories.
#11
Which safety standard is specifically designed for electrical connectors used in hazardous locations?
IEC 60079
ExplanationTailored safety standard for hazardous location connectors.
#12
What standard specifies the dimensions and layout of power plugs and sockets worldwide?
IEC 60906-1
ExplanationIEC standard specifying global power plug and socket dimensions.
#13
Which standard governs the safety of electrical connectors and appliances in Europe?
EN 60950
ExplanationEN 60950 standard governs safety in European connectors and appliances.