Giữa Kỳ 1 Môn Công Nghệ 12

What is electrical engineering?

• a field of engineering related to the research and application of electrical and electromagnetic technology in the production, transmission, distribution, and use of electrical energy.

• a field of technology related to the research and development of internal combustion engines for life and production.

• the branch of electronic engineering related to the research and operation of machinery and equipment in mechanical production.

• the branch of engineering related to the research and development of high-tech products in the construction field.

What is the purpose of developing new materials for electrical engineering?

• to create various designs of electrical devices according to market demand.

• for electrical devices to operate at all existing voltage levels domestically and internationally.

• to create electrical devices with high efficiency, energy-saving, and environmentally friendly.

• to increase revenue from electrical device production and expand the market for electrical device production.

Observe the image and state the name and function of that device in life?

• The fire alarm device will detect and activate the fire prevention system immediately, helping to alert the public and fire agencies.

• The electrical socket shares electrical energy, reduces load on the main power source, ensuring safe transmission connections, and providing effective energy supply.

• The circuit breaker is designed to automatically disconnect the circuit when there is an overload, short circuit, or voltage drop.

• The fuse is a component or device that protects the circuit by breaking the circuit.

What are the main advantages of electrical devices that show the position and role of electrical engineering in production and life?

What are the main advantages of electrical devices that show the position and role of electrical engineering in production and life?

• Large capacity, high efficiency, reduce labor for humans, increase electricity consumption.

• Provide electricity for production, thanks to electrical devices that help improve community living standards.

• Provide electrical devices for production, thanks to electrical devices that help improve the quality of family life.

• Compact structure, low power consumption, high efficiency, with smart controlled communication protocols.

When using a rice cooker, what form of energy has electrical energy been converted into?

• Light energy

• Chemical energy

• Thermal energy

• Mechanical energy

Which statement is incorrect about the position and role of electrical engineering in life?

• Providing energy for electrical devices in the family.

• Improving the quality of family life.

• Enhancing community living standards.

• Family life is becoming more inconvenient due to smart electrical devices.

Which component plays a role in producing electrical energy in the electrical system?

• Transformer

• Solar energy panel

• Transmission line

• Electric fan

What is the job of an electrical design engineer?

• Designing circuit diagrams and related technical documents.

• Manufacturing electrical devices from initial materials and components according to production processes.

• Constructing and installing electrical devices from discrete devices according to design documents.

• Repairing electrical devices when faults or incidents are detected.

What field does the work of installing, connecting power lines and electrical equipment for the electrical project belong to?

• Electric operation.

• Electrical installation.

• Manufacturing and fabrication of electrical equipment.

• Electrical design.