1.
¿Es uno de los diferentes tipos de equipos de refrigeración?
Correct Answer
C. Equipo dividido
Explanation
The correct answer is "Equipo dividido." This is because "Equipo dividido" translates to "Split unit" in English, which is a type of refrigeration equipment that consists of two separate units: one indoor unit and one outdoor unit. The indoor unit contains the evaporator coil and the fan, while the outdoor unit houses the compressor and the condenser coil. This type of equipment is commonly used in air conditioning systems for homes and buildings.
2.
De acuerdo con la subdirección de soporte técnico de Alcatel, a la alarma de temperatura alta en una central distribuida de sistema 12, le corresponde el memónico:
Correct Answer
D. ETEO
Explanation
The correct answer, ETEO, is the mnemonic that corresponds to the high temperature alarm in a distributed system 12. The other options do not accurately represent the high temperature alarm.
3.
El colocar el selector de operación en la posición cero o fuera en algunos tableros, ocasiona una alarma de:
Correct Answer
A. Falla planta
Explanation
Cuando se coloca el selector de operación en la posición cero o fuera en algunos tableros, se activa una alarma de "Falla planta". Esto significa que ha ocurrido una falla en el funcionamiento de la planta o sistema en el que se encuentra el tablero. La alarma indica que algo no está funcionando correctamente y requiere atención o reparación.
4.
Para baterias abiertas, el voltaje de flotación en Volts por celda es de:
Correct Answer
A. 2.17
Explanation
The correct answer is 2.17. This is the voltage of floatation for open batteries, measured in volts per cell.
5.
¿El voltaje de igualación para una batería abierta es de?
Correct Answer
E. 2.33 volts/celda
Explanation
The correct answer is 2.33 volts/celda. This is the voltage required to equalize an open battery.
6.
Por medio de la supervisión de estos parámetros se realiza la supervisión de la batería a traves del módulo de control de la planta.
Correct Answer
B. Voltaje y corriente
Explanation
This answer is correct because voltage and current are essential parameters to monitor the battery. Voltage represents the electrical potential difference, which indicates the battery's state of charge. Current measures the flow of electric charge, providing information about the battery's discharge or charging rate. By monitoring these parameters, the control module can assess the battery's performance and health accurately. Other parameters mentioned in the options may also be important, but voltage and current are the most fundamental for supervising the battery's condition.
7.
Es una de las acciones a realizar cuando se tiene una falla de voltaje de generador en un grupo electrógeno
Correct Answer
B. Verificar el sensor de voltaje de emergencia
Explanation
When there is a voltage failure in a generator, one of the actions to be performed is to check the emergency voltage sensor. This is important because the sensor is responsible for detecting any voltage fluctuations or abnormalities in the generator. By verifying the sensor, one can ensure that it is functioning properly and accurately detecting any voltage issues. This step is crucial in troubleshooting and diagnosing the cause of the voltage failure in the generator.
8.
En el grupo electrógeno, la temperatura del motor antes del arranque no debe ser menor de:
Correct Answer
D. 50°C
Explanation
The correct answer is 50°C. In order to start the engine of a generator, the temperature of the motor should not be lower than 50°C. This is because a lower temperature may affect the performance and efficiency of the engine. It is important to ensure that the motor is at a suitable temperature before starting it to prevent any potential damage or issues.
9.
¿En que parte de los equipos de C.A. se encuentra el único puente de conexión entre el neutro y tierra?
Correct Answer
E. Tablero de protección general
Explanation
The only connection between the neutral and ground in an air conditioning system is found in the general protection panel. This panel is responsible for protecting the system from electrical faults and overloads. It is where the grounding and bonding connections are made, ensuring the safety and proper functioning of the system. The other options, such as the distribution panel, substation, capacitor bank, and generator, do not typically have this specific connection between the neutral and ground.
10.
Identifica cual de las partes de los siguientes incisos no corresponde al equipo de supervisión SMART
Correct Answer
E. Salidas binarias
Explanation
The correct answer is "Salidas binarias". This is because all the other options (Fuente de alimentación, Salidas de relevador, MODEM, Conexión telefónica) are components that are typically found in a SMART supervision equipment, while "Salidas binarias" is not.
11.
La norma de estandarización de alarmas establece que la alarma de alta temperatura de sala digital, para concentradores en centrales AXE, debe visualizarse con este texto
Correct Answer
B. Alta*temp*XXX
Explanation
The correct answer is "alta*temp*XXX" because the question is asking for the specific text that should be displayed for the high temperature alarm in a digital room. The given answer matches the format and content required by the standard alarm standardization norm for AXE central concentrators.
12.
De acuerdo a la norma de estandarización de alarmas, para una central Host de AXE, la alarma de grupo electrógeno bloqueado debe aparecer con el texto:
Correct Answer
C. Gpo*elect*bloqueado
Explanation
The correct answer is "gpo*elect*bloqueado" because it follows the format specified in the standardization norm for alarms in a Host central of AXE. The other options do not match the required format or contain additional characters that are not mentioned in the norm.
13.
¿Son los principales voltajes de operación de una subestación instalada en Telmex?
Correct Answer
D. 13.2 , 23 y 34.5KV
14.
Es una de las formas utilizadas para probar la alarma de carga en igualación en una planta de C.D.
Correct Answer
A. Colocando el interruptor flotación/igualación en la posición igualación de un rectificador
Explanation
One of the ways to test the equalization charge alarm in a DC plant is by placing the flotation/equalization switch in the equalization position of a rectifier. This action will activate the equalization process, which helps to balance the charge among the battery cells. By monitoring the voltage, current, and density in each of the battery banks, it can be ensured that the equalization process is working correctly. Removing 40% of the connected load within a 5-minute interval is not related to testing the equalization charge alarm.
15.
Las alarmas de falla pueden llegar al centro de distribución por medio de este elemento.
Correct Answer
A. Tablilla auxiliar
Explanation
The correct answer is "Tablilla auxiliar". The question states that fault alarms can reach the distribution center through this element. The term "tablilla auxiliar" translates to "auxiliary board" in English. This suggests that the fault alarms are transmitted through this auxiliary board, indicating that it plays a crucial role in the distribution system.
16.
En grupos electrógenos Onan, la Pre-alarma de presión de aceite, opera a un valor de:
Correct Answer
E. 20 PSI.
Explanation
The correct answer is 20 PSI. In Onan generator sets, the pre-oil pressure alarm operates at a value of 20 PSI. This alarm is designed to alert the operator if the oil pressure in the generator falls below this threshold, indicating a potential issue with the lubrication system. By setting the alarm at 20 PSI, it ensures that any significant drop in oil pressure will be detected early on, allowing for prompt maintenance and preventing potential damage to the generator.
17.
En operación normal del grupo electrógeno, la velocidad (medida en frecuencia generada) debe estar en:
Correct Answer
E. 60 +- 1Hz
Explanation
In normal operation of a generator, the speed or frequency generated should be around 60 Hz with a tolerance of plus or minus 1 Hz. This means that the generator can operate within a range of 59 Hz to 61 Hz. This tolerance allows for slight variations in the speed of the generator, ensuring that it is operating within an acceptable range and producing a stable electrical output.
18.
¿Es una de las opciones en la cual se puede probar la alarma de carga de igualación en una planta de c.d.?
Correct Answer
A. Se oprime el botón de prueba del circuito de igualación en la unidad de control, es necesario permanecer unos 50 segundos para provocar el incremento de corriente suficiente para activar el circuito automático.
Explanation
Pressing the equalization circuit test button on the control unit for about 50 seconds will cause enough current increase to activate the automatic circuit.
19.
Es un punto a considerar en la instalación de un nuevo sistema de supervisión para la recepción de sistemas de alarma.
Correct Answer
C. No debe afectar las alarmas conectadas en los sistemas anteriores
Explanation
The correct answer is "No debe afectar las alarmas conectadas en los sistemas anteriores." This means that when installing a new supervision system for alarm systems, it should not impact the alarms connected to the previous systems. This ensures that the existing alarm systems continue to function properly without any disruption or interference from the new supervision system.
20.
Si la alarma de planta en operación se toma del interruptor de emergencia, para provocar la alarma, tiene que hacerse:
Correct Answer
D. Una prueba de arranque automático con transferencia completa.
Explanation
The correct answer is "Una prueba de arranque automático con transferencia completa." This means that in order to activate the plant alarm by using the emergency switch, a complete automatic start-up test with transfer must be performed. This suggests that the alarm is designed to be triggered when the plant is started automatically and the power transfer is completed.
21.
En el grupo electrógeno, la presión de aceite normal de trabajo en el motor debe estar entre:
Correct Answer
E. 40 y 60 lb/pulg2
Explanation
The correct answer is 40 and 60 lb/pulg2. In a generator, the normal working oil pressure in the engine should be between 40 and 60 lb/pulg2. This range ensures proper lubrication and cooling of the engine components, preventing excessive wear and overheating. If the oil pressure falls below 40 lb/pulg2, it may indicate a problem with the oil pump or a leak in the system. On the other hand, if the pressure exceeds 60 lb/pulg2, it may indicate a restriction in the oil passages or a malfunctioning pressure relief valve.
22.
El bloqueo por sobrevelocidad del grupo electrógeno opera a un valor de:
Correct Answer
E. 63 - 65 Hz
Explanation
The correct answer is 63 - 65 Hz. This means that the overspeed protection of the generator operates when the frequency exceeds this range. It is important for the generator to have this protection in order to prevent damage or failure due to excessive speed.
23.
En un tablero Selmec tipo C, las alarmas de bloqueo del G:E y falla de red se conectan en puntos de la tablilla:
Correct Answer
B. TB 3
Explanation
Las alarmas de bloqueo del G:E y falla de red se conectan en el punto de la tablilla TB 3.
24.
Para realizar la administración y operación de los equipos por medio de diferentes sistemas de supervisión se ha definido una arquitectura que permite la interconexión de estos " sistemas de gestión " de diferentes marcas ¿Cual es?
Correct Answer
A. TMN
Explanation
TMN stands for Telecommunications Management Network. It is a standard architecture that allows the interconnection of different management systems for equipment administration and operation. TMN provides a framework for managing and controlling telecommunications networks, including the monitoring and supervision of devices through various management systems. It facilitates the integration of different brands' management systems, enabling efficient and effective network management.
25.
Al realizar las verificaciones durante la operación del grupo electrógeno, es importante verificar que la velocidad se mantenga a
Correct Answer
B. 1800 rpm
Explanation
During the operation of a generator, it is crucial to ensure that the speed is maintained at 1800 rpm. This is because the generator is designed to operate efficiently and produce the correct frequency output at this specific speed. Deviating from this speed can result in improper functioning of the generator and may lead to damage or inefficiency in power generation. Therefore, it is important to regularly verify and adjust the speed to ensure optimal performance.
26.
Para el procedimiento de desconectar una subestación se lleva acabo en 6 pasos. ¿A que numero de paso corresponde el siguiente enunciado? Abre el interruptor de operación con carga de la subestación.
Correct Answer
A. Paso 4
Explanation
The statement "Abre el interruptor de operación con carga de la subestación" corresponds to Step 4 because it is mentioned in the question that the procedure for disconnecting a substation is carried out in 6 steps, and the given statement is associated with Step 4.
27.
¿Cuales son los tipos de subestaciones que tenemos en Telmex?
Correct Answer
C. Tipo poste, compacta y pedestal
28.
¿Para que nos sirve el protocolo SNMP?
Correct Answer
C. Para realizar la supervisión y administración de redes muy grandes
Explanation
The correct answer is "Para realizar la supervisión y administración de redes muy grandes." This is because SNMP (Simple Network Management Protocol) is a protocol used for monitoring and managing network devices. It allows network administrators to collect information, monitor performance, and manage network devices such as routers, switches, and servers. It is particularly useful for large networks where manual monitoring and management would be impractical.
29.
La conexión de alarmas hacia el CAR se realiza de acuerdo con el diagrama para la:
Correct Answer
A. Señal de falla de red
Explanation
The correct answer is "Señal de falla de red". This means that the connection of alarms to the CAR (Central Alarm Receiver) is done according to the diagram for the signal of network failure. This suggests that the alarms are connected in a way that allows them to detect and transmit signals indicating a failure in the network.
30.
Para provocar la alarma de planta en operación tomando la señal de operación del tablero, es necesario realizar esta prueba.
Correct Answer
B. Prueba de operación manual
Explanation
The correct answer is "Prueba de operación manual" because it is stated in the question that in order to provoke the plant alarm during operation, the signal from the control panel needs to be used. The other options mentioned do not involve using the control panel signal for this purpose.
31.
Es el ajuste del tiempo de retransferencia que se realiza a los grupos electrógenos
Correct Answer
E. 3 a 5 minutos
Explanation
The correct answer is 3 to 5 minutes. This refers to the time adjustment for the transfer of power between generators.
32.
La Norma de Estandarización de Alarmas establece que cuando se realiza una prueba de alarmas es necesario considerar que las alarmas:
Correct Answer
B. Deben probarse una por una
Explanation
The correct answer is "Deben probarse una por una." This means that alarms should be tested individually, one at a time. This ensures that each alarm is functioning properly and allows for easier identification and troubleshooting if any issues arise. Testing alarms one by one also helps to prevent confusion or overlapping of alarm signals.
33.
¿Cual es el memónico de alarma en centrales distribuidas S-12 de temperatura alta para un equipo de clima de acuerdo con la subdirección de soporte técnico de alcatel Indetel?
Correct Answer
E. ETEO
34.
El desconectar un fusible o interruptor de alimentación de red del control de transferencia, esto provoca la desoperación del:
Correct Answer
E. Sensor de red
Explanation
Disconnecting a fuse or power switch from the transfer control causes the deoperation of the network sensor.
35.
En la prueba de alarma de falla de red, para provocar la falla de red, por lo general se desconecta el:
Correct Answer
D. Interruptor general de baja tensión
Explanation
In the network fault alarm test, the general low-voltage switch is usually disconnected to cause the network failure.
36.
Para baterías selladas, el voltaje mínimo de operación Volts por celda es de:
Correct Answer
B. 1.95
Explanation
The correct answer is 1.95. This means that for sealed batteries, the minimum operating voltage per cell is 1.95 volts.
37.
¿Como se prueba la alarma de falla de rectificador en una planta de C.D. marca Ericsson?
Correct Answer
C. Simulando una falla de fusible fundido dentro del rectificador
Explanation
The correct answer is "Simulando una falla de fusible fundido dentro del rectificador" which means "Simulating a blown fuse failure within the rectifier". This method involves intentionally simulating a blown fuse within the rectifier to test the rectifier failure alarm in an Ericsson DC plant. By doing so, the alarm system can be checked to ensure it detects and alerts for such failures correctly.
38.
Es una de las causas por las que se produce la alarma falla de rectificador.
Correct Answer
A. Fusible fundido
Explanation
A fusible fundido (blown fuse) can cause a rectifier failure alarm. When a fuse blows, it interrupts the flow of current in a circuit, which can lead to a rectifier malfunction. The rectifier relies on a continuous and stable flow of current to function properly. If the fuse is blown, it means that there is an excessive amount of current flowing through the circuit, which can damage the rectifier. Therefore, a blown fuse is a possible cause for a rectifier failure alarm.
39.
¿Cual es el texto de alarma en una central AXE HOST de alta temperatura de la sala digital para un equipo de clima según la norma de estandarización de alarmas?
Correct Answer
A. Alta*temp*sala*digital
Explanation
The correct answer is "alta*temp*sala*digital" because it matches the given text of alarm in a high temperature alarm for the digital room equipment according to the alarm standardization norm.
40.
En los equipos de supervisión, pueden monitorear señales de voltaje o corriente mediante el uso de transductores:
Correct Answer
C. Entradas analógicas
Explanation
Los equipos de supervisión pueden monitorear señales de voltaje o corriente utilizando transductores que convierten estas señales analógicas en señales digitales. Las entradas analógicas permiten la medición y monitoreo de variables continuas, como el voltaje o la corriente, en contraposición a las entradas binarias o lógicas que solo pueden tener dos estados, encendido o apagado. Por lo tanto, las entradas analógicas son la opción correcta para monitorear señales de voltaje o corriente en los equipos de supervisión.
41.
Entre sus funciones principales están mantenimiento y operación, alarmas, configuración de circuitos y servicios de Red Inteligente.
Correct Answer
C. CNS
Explanation
The correct answer is CNS. The given statement mentions that one of the main functions of the entity is maintenance and operation, alarms, circuit configuration, and Intelligent Network services. CNS stands for Communication and Network Services, which aligns with the mentioned functions.
42.
Es la forma de probar una alarma por alto o bajo voltaje de distribución en plantas de C.D. sin fuente auxiliar
Correct Answer
B. Extraer la tarjeta de alarma de alto bajo voltaje y ajustar al valor nominal y estimar el ajuste en la escala
Explanation
The correct answer suggests that in order to test an alarm for high or low voltage in a DC power plant without an auxiliary source, the appropriate action is to remove the high-low voltage alarm card and adjust it to the nominal value while estimating the adjustment on the scale. This action ensures that the alarm is functioning properly and can detect any abnormal voltage levels in the power plant.
43.
¿Cual es el texto de alarma en una central 5ESS de alta temperatura de la sala digital para un equipo de clima según la norma de estandarización de alarmas?
Correct Answer
C. Alta temp
Explanation
The correct answer is "Alta temp." This is the text of the alarm in a 5ESS central high-temperature alarm for the digital room climate equipment, according to the alarm standardization norm.
44.
En estas plantas de c.d., al apagar el rectificador, generalmente no se provoca la alarma de falla.
Correct Answer
C. Plantas Ericsson
Explanation
The given statement states that in these CD plants, turning off the rectifier usually does not trigger a fault alarm. The correct answer, "Plantas Ericsson," suggests that Ericsson plants are known for not generating a fault alarm when the rectifier is turned off.
45.
En los tableros Selmec tipo A, B y C, se utilizan contactos para las alarmas de bloqueo del G.E y falla red contactos que son respectivamente:
Correct Answer
B. Normalmente abierto y normalmente cerrado, excepto el C que son normalmente cerrados
Explanation
En los tableros Selmec tipo A y B, se utilizan contactos para las alarmas de bloqueo del G.E y falla red que son normalmente abierto y normalmente cerrado, respectivamente. Sin embargo, en el tablero tipo C, los contactos para las alarmas de bloqueo del G.E y falla red son normalmente cerrados.
46.
Cuando se realizan eventos de prueba por recepción de grupos electrógenos, es necesario verificar....
Correct Answer
E. Todos los bloqueos
Explanation
During the testing events for the reception of power generators, it is necessary to verify all the blockages. This means checking for any obstructions or barriers that may prevent the proper functioning of the generators. This could include checking for any physical blockages, such as debris or objects in the way, as well as ensuring that all safety mechanisms are in place and functioning correctly. By verifying all the blockages, it ensures that the generators can operate safely and efficiently.
47.
En los grupos electrógenos muchas veces se toma la señal de falla de red de un contacto auxiliar de:
Correct Answer
D. El interruptor de normal
Explanation
In a generator, the signal of a network failure is often taken from an auxiliary contact of the normal switch. This means that when there is a power outage, the normal switch detects the loss of voltage and triggers the generator to start. The other options mentioned, such as the emergency voltage sensor, emergency switch, voltage sensor, and current sensor, are not directly responsible for detecting the network failure and initiating the generator.
48.
La norma de estandarización de alarmas, establece que la alarma falla en el suministro de red comercial para concentradores de centrales AXE, debe presentarse con este texto.
Correct Answer
D. Falla*cfe*XXX
Explanation
The correct answer is "falla*cfe*XXX" because it includes the specific keywords "falla", "cfe", and "XXX" which are relevant to the given context. This alarm text is used to indicate a failure in the commercial power supply for AXE central concentrators. The inclusion of "cfe" suggests that the failure is related to the Comisión Federal de Electricidad (CFE), which is a Mexican state-owned electric utility company. The "XXX" could represent additional information about the specific nature of the failure.
49.
Es lo primero que se debe de llevar a cabo cuando se realizan maniobras en la subestación y antes de desconectarla.
Correct Answer
A. Verificar la correcta operación del grupo electrógeno.
Explanation
The correct answer is "Verificar la correcta operación del grupo electrógeno." This is because before disconnecting the substation, it is important to ensure that the generator is functioning properly. This step ensures that there will be a reliable power source during the disconnection process.
50.
El circuito de alarma por alto y bajo voltaje de distribución de una planta de C.D., generalmente se encuentra en:
Correct Answer
D. Bastidor de control
Explanation
The correct answer is "Bastidor de control". The alarm circuit for high and low voltage distribution in a DC plant is usually found in the control panel. The control panel is responsible for monitoring and controlling various aspects of the plant's operation, including voltage levels. Therefore, it makes sense for the alarm circuit to be located in the control panel, where it can easily detect any abnormal voltage levels and trigger an alarm if necessary.