Montaje y mantenimiento eléctrico: Cuestionarios interactivos para Inglés Técnico

Question 1

¿Qué herramienta se emplea específicamente para retirar el aislamiento de los cables eléctricos?

Accepted Answer

Pelacables

Answer

Multímetro

Answer

Alicates universales

Answer

Destornillador

Question 2

En instalaciones eléctricas residenciales, ¿qué tipo de cable es el más comúnmente utilizado?

Accepted Answer

Cable THHN

Answer

Cable óptico

Answer

Cable USB

Answer

Cable coaxial

Question 3

¿Qué dispositivo protege los circuitos eléctricos de sobrecargas de corriente?

Accepted Answer

Fusible

Answer

Transformador

Answer

Interruptor diferencial

Answer

Regulador de tensión

Question 4

¿Qué método de cableado ofrece la mayor protección contra interferencias electromagnéticas?

Accepted Answer

Trenzado apantallado

Answer

Par trenzado

Answer

Cable coaxial

Answer

Trenzado sin apantallar

Question 5

¿Qué tipo de mantenimiento preventivo debe realizarse con regularidad en las instalaciones eléctricas?

Accepted Answer

Inspecciones visuales, pruebas eléctricas y limpieza

Answer

Solo pruebas eléctricas

Answer

Solo inspecciones visuales

Question 6

¿Cuál es la función principal de un transformador?

Accepted Answer

Convertir la tensión y la corriente eléctrica

Answer

Proteger los circuitos eléctricos

Answer

Regular la tensión

Answer

Almacenar energía eléctrica

Question 7

¿Qué tipo de iluminación destaca por su bajo consumo energético y larga vida útil?

Accepted Answer

LED

Answer

Halógena

Answer

Incandescente

Answer

Fluorescente

Question 8

¿Cuál es la tensión nominal estándar para instalaciones eléctricas residenciales en España?

Accepted Answer

230 voltios

Answer

600 voltios

Answer

120 voltios

Answer

400 voltios

Question 9

Which of the following tools is NOT commonly used in electrical installations?

Accepted Answer

Hammer

Answer

Multimeter

Answer

Wire stripper

Answer

Screwdriver

Question 10

What is the primary function of a circuit breaker?

Accepted Answer

To automatically interrupt the flow of electricity in case of an overload or short circuit.

Answer

To regulate the voltage of the circuit.

Answer

To convert AC to DC current.

Question 11

Which type of electrical cable is suitable for outdoor installations due to its enhanced protection?

Accepted Answer

Armored cable

Answer

Solid core cable

Answer

Flexible cable

Answer

Stranded cable

Question 12

What is the primary purpose of a ground fault circuit interrupter (GFCI)?

Accepted Answer

To detect and interrupt electrical current in case of a ground fault, preventing shock.

Answer

To protect against overloads

Answer

To isolate a faulty circuit

Question 13

Which of the following is a key aspect of effective preventive maintenance for electrical installations?

Accepted Answer

Regular inspections, testing, and prompt repair of any issues identified.

Answer

Waiting for failures to occur before taking action.

Answer

Using unqualified or inexperienced personnel

Answer

Ignoring minor problems or deferring maintenance

Question 14

Which of the following is a common type of electrical lighting fixture installed in ceilings?

Accepted Answer

Recessed light

Answer

Solar panel

Answer

Electric motor

Answer

Wind turbine

Question 15

What is the main purpose of using a wire nut in electrical installations?

Accepted Answer

To securely connect and insulate electrical wires, preventing short circuits and ensuring safety.

Answer

To provide strain relief for wires

Answer

To protect wires from moisture

Answer

To act as a fuse

Question 16

¿Cuál es el primer paso en el proceso de montaje de una instalación eléctrica, en el que se define el alcance del proyecto, los materiales necesarios y las normas de seguridad a seguir?

Accepted Answer

Planificación y diseño

Answer

Instalación de cableado

Answer

Compra de materiales

Answer

Conexión de componentes

Question 17

¿Qué tipo de cable, caracterizado por su buena conductividad y resistencia a la corrosión, se emplea habitualmente en instalaciones eléctricas domésticas?

Accepted Answer

Cable de cobre

Answer

Cable de fibra óptica

Answer

Cable de aluminio

Answer

Cable de acero

Question 18

¿Cuál de las siguientes herramientas, que combina un voltímetro, un amperímetro y un óhmetro, se utiliza para medir múltiples parámetros eléctricos?

Accepted Answer

Multímetro

Answer

Megóhmetro

Answer

Pinzas amperimétricas

Answer

Detector de tensión

Question 19

¿Qué norma española establece los requisitos técnicos y de seguridad que deben cumplir las instalaciones eléctricas de baja tensión?

Accepted Answer

Reglamento Electrotécnico de Baja Tensión (REBT)

Answer

Norma Internacional Electrotécnica (IEC)

Answer

Código Nacional Eléctrico (NEC)

Answer

Normas Británicas (BS)

Question 20

¿Qué herramienta manual, diseñada específicamente para cortar y pelar cables eléctricos, se utiliza para prepararlos para su conexión?

Accepted Answer

Alicates pelacables

Answer

Destornillador

Answer

Llave inglesa

Question 21

¿Cuál de los siguientes factores es esencial considerar al diseñar una instalación eléctrica, ya que determina el tamaño y la capacidad de los componentes necesarios?

Accepted Answer

Carga eléctrica

Answer

Altura de los techos

Answer

Color de las paredes

Answer

Ubicación de los muebles

Question 22

¿Qué tipo de conductores, protegidos por un aislamiento que garantiza la seguridad y evita cortocircuitos, se utilizan en instalaciones eléctricas subterráneas?

Accepted Answer

Conductores aislados

Answer

Conductores apantallados

Answer

Conductores desnudos

Answer

Conductores trenzados

Question 23

What is the primary purpose of electrical grounding?

Accepted Answer

To provide a safe path for escaping current

Answer

To isolate circuits from each other

Answer

To enhance energy efficiency

Answer

To prevent voltage surges

Question 24

Which type of cable is most commonly used for underground electrical installations?

Accepted Answer

Armored cable

Answer

Coaxial cable

Answer

Conduit

Answer

Romex cable

Question 25

What is the main purpose of a circuit breaker?

Accepted Answer

To automatically disconnect a circuit during a fault condition

Answer

To regulate voltage

Answer

To store electrical energy

Question 26

Which of the following is an important safety precaution when working with electricity?

Accepted Answer

Always wear appropriate personal protective equipment (PPE)

Answer

Work in wet conditions

Answer

Ignore warning signs

Answer

Use damaged tools to save time

Question 27

What is the key difference between a single-phase and a three-phase electrical system?

Accepted Answer

A three-phase system has three live conductors and a neutral conductor, while a single-phase system has one live conductor and a neutral conductor

Answer

A three-phase system has higher voltage than a single-phase system

Question 28

What is the primary function of a transformer in an electrical system?

Accepted Answer

To alter the voltage level of the electrical supply

Answer

To regulate current flow

Answer

To store electrical energy

Answer

To guard against electrical faults

Question 29

Which of the following is a desirable characteristic of electrical insulation materials?

Accepted Answer

High electrical resistance

Answer

High thermal conductivity

Answer

Low melting point

Question 30

Which of the following is NOT a common type of electrical installation typically encountered in the field?

Accepted Answer

Refrigeration system

Answer

Security system

Answer

Power distribution system

Answer

Lighting system

Question 31

What is the primary function of a circuit breaker in an electrical system?

Accepted Answer

To protect the circuit from overcurrent conditions

Answer

To regulate voltage levels

Answer

To convert AC to DC

Answer

To isolate a section of the circuit

Question 32

Which of the following materials is commonly used for electrical insulation due to its non-conductive properties?

Accepted Answer

Polyvinyl chloride (PVC)

Answer

Steel

Answer

Aluminum

Answer

Copper

Question 33

What is the primary purpose of a ground fault circuit interrupter (GFCI) in an electrical system?

Accepted Answer

To prevent electric shock in the event of a ground fault

Answer

To isolate a section of the circuit

Answer

To protect against overcurrent conditions

Question 34

Which of the following methods is commonly used for testing the integrity of electrical insulation?

Accepted Answer

Megger test

Answer

Voltage drop test

Answer

Continuity test

Answer

Vibration test

Question 35

What is the primary objective of a lock-out/tag-out (LOTO) procedure in electrical maintenance?

Accepted Answer

To prevent accidental energization of equipment during maintenance activities

Answer

To isolate a section of the circuit

Answer

To protect against overcurrent conditions

Question 36

Which of the following tools is indispensable for electrical maintenance due to its versatility in measuring electrical parameters?

Accepted Answer

Multimeter

Answer

Hammer

Answer

Wrench

Answer

Screwdriver

Question 37

What is the primary purpose of an insulation resistance test?

Accepted Answer

To measure the insulation resistance between conductors and ground

Answer

To determine the insulation leakage current

Answer

To measure the voltage drop across the insulation

Answer

To measure the current flow through the circuit

Question 38

Which of the following is a crucial safety precaution that should always be observed when working on electrical installations?

Accepted Answer

Wear appropriate personal protective equipment (PPE)

Answer

Use bare hands to handle wires

Answer

Work on live circuits without proper safety measures

Question 39

What is the primary function of a transformer in an electrical circuit?

Accepted Answer

To change the voltage and current levels while maintaining power

Answer

To provide isolation between circuits

Answer

To regulate the flow of electricity

Answer

To convert alternating current (AC) to direct current (DC)

Question 40

Which type of electrical cable is commonly used for outdoor installations due to its durability and protection against moisture and physical damage?

Accepted Answer

Armored cable

Answer

Coaxial cable

Answer

Romex cable

Answer

Ethernet cable

Question 41

What is the main purpose of a ground fault circuit interrupter (GFCI) in electrical installations?

Accepted Answer

To protect against electrical shock by detecting ground faults and interrupting the circuit

Answer

To protect against overcurrent

Answer

To protect against short circuits

Question 42

When bonding metal conduit to an electrical box, which method is recommended to ensure proper electrical continuity and safety?

Accepted Answer

Using a bonding screw or lug specifically designed for the purpose

Answer

Using a hammer and nails

Answer

Using a wire nut

Answer

Using tape