Electrotechnical Systems Quiz

Imagine you are designing a simple electronic toy car. Which of the following components might you include in its circuit to control the electrical flow?

• Voltage regulator

• Water pump

• Thermostat

• Fuse

Imagine you are renovating your kitchen and need to update the electrical system. You're evaluating different types of circuit breakers for the new appliances. What does MCB stand for and what does it do?

• Main Circuit Breaker, controls the main power supply

• Miniature Circuit Breaker, cuts off supply if too much current flows

• Motor Control Box, regulates motor speed

• Multiple Cable Box, connects multiple cables

Imagine you're renovating your kitchen and want to ensure the highest safety standards for your family. Which device would you install to protect against electrical shocks by immediately cutting off the power supply if a fault is detected?

• Residual Current Detector, detects residual current in the circuit

• Remote Control Device, controls electrical appliances remotely

• Rapid Circuit Disconnection, quickly disconnects circuits in case of emergency

• Residual Current Device, cuts off the power supply if it detects a fault

Why are LEDs becoming the preferred lighting option in modern home designs?

• They are cheaper to manufacture

• They have a longer lifespan and are more energy efficient

• They produce brighter light and are easier to install

• They are more resistant to electrical faults

Imagine a global streaming service needs to upgrade its data centers to improve user experience by reducing video loading times. Which cable would they most likely use to handle vast amounts of data transmission efficiently?

• Fibre optic cable, transmits data through light and has a high data transfer rate

• Ethernet cable, transmits data through a combination of copper and fiber optics

• Coaxial cable, transmits data through a single copper conductor

• Twisted pair cable, transmits data through multiple insulated copper wires

Imagine you are a facility manager at a large corporate office aiming to reduce the building's energy consumption and CO² emissions. Which management system would you implement?

• Building Energy Management, reduces energy consumption and CO² emissions

• Building Equipment Management, controls heating and ventilation systems

• Basic Electrical Maintenance, ensures proper functioning of electrical systems

• Business Efficiency Monitoring, tracks efficiency in commercial buildings

Imagine you're setting up a woodworking shop with several high-powered saws and sanders. What does a DOL protect these machines against?

• Short circuits in the electrical system

• Inadvertent starting of machines after a power cut

• Power surges in the circuit

• Overheating of electrical appliances

Imagine you are renovating your home and decide to upgrade your heating system to an S-plan configuration. Which four components are essential for the control system?

• Circuit breaker, capacitor, inductor, transformer

• Fuse, switch, cable, resistor

• Timer, roomstat, programmer, motorized valves

• Thermostat, radiator, boiler, pump

Imagine you're designing a smart home system for a client. Which technology would you recommend for enabling remote control of the home's devices?

• Zigbee, a high-level communication protocol

• Bluetooth, a short-range wireless technology

• Wi-Fi, a technology for wireless local area networking

• Infrared, a technology for remote control systems

John recently installed solar panels on his rooftop. To use the electricity generated for his home appliances, which device is essential for converting the DC electricity into AC electricity?

• Transformer

• Inverter

• Rectifier

• Transducer