#1
What is the main purpose of electrical connectors in electronic devices?
To enhance the device's appearance
To connect electrical circuits together
To increase the device's processing power
To reduce the device's energy consumption
#2
Which of the following connectors is commonly used for connecting peripheral devices to computers?
NEMA connector
XLR connector
USB connector
RCA connector
#3
What does the 'IEC' in IEC 60320, a standard for appliance couplers, stand for?
International Electrical Code
International Engineering Consortium
International Electrotechnical Commission
Integrated Electronics Corporation
#4
In the context of RJ45 connectors, what does 'RJ' stand for?
Registered Jack
Rapid Join
Resistor Junction
Radio Jack
#5
What does the 'AWG' stand for in the context of electrical wire sizes?
American Wire Gauge
Automatic Wire Guide
Adjusted Weight Grade
All-Weather Grip
#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
To indicate the connector's resistance to electrical shocks
To measure the connector's conductivity
To display the connector's voltage rating
#7
In the context of USB connectors, what does the term 'USB Type-C' primarily refer to?
The data transfer speed of the USB
The shape and electrical configuration of the USB connector
The software required to use the USB
The maximum power the USB connector can handle
#8
Which of the following is NOT a characteristic of fiber optic connectors?
Electromagnetic interference immunity
High data transmission rate
Limited to short-distance communication
Low signal loss
#9
Which component is essential for grounding in electrical connectors to ensure safety?
Capacitor
Diode
Earth pin
Resistor
#10
What is the significance of the 'UL' listing for electrical connectors in the United States?
It indicates the connector is waterproof
It signifies compliance with international standards
It denotes that the product has been tested for safety by Underwriters Laboratories
It means the connector is rated for outdoor use
#11
Which safety standard is specifically designed for electrical connectors used in hazardous locations?
IEC 60079
ISO 9001
IEC 61000
UL 94
#12
What standard specifies the dimensions and layout of power plugs and sockets worldwide?
IEC 60906-1
ISO 9001
IEEE 802.3
IEC 60320
#13
Which standard governs the safety of electrical connectors and appliances in Europe?
ISO 9001
EN 60950
IEC 60320
EN 60601