Hitachi Rail STS Operation & Maintenance Engineer Interview Questions and Answers

Q1. Fiber colour code
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Q2. Fiber losses per km
Ans. 
Fiber losses per km refer to the amount of signal loss that occurs in optical fibers over a distance of one kilometer.
• Fiber losses per km are measured in decibels (dB) and are influenced by various factors such as fiber type, wavelength, connectors, and splices.

• Different types of fibers have different loss characteristics. For example, single-mode fibers typically have lower losses compared to multimode fibers.

• Losses c...read more
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Q1. What is the bts.and d.g
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BTS stands for Base Transceiver Station and DG stands for Diesel Generator.
• BTS is a part of a mobile network that connects mobile devices to the core network.

• It consists of radio transceivers, antennas, and other equipment.

• DG is a backup power source used in case of power outages or emergencies.

• It is commonly used in areas with unreliable or no access to the main power grid.
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Q2. What is broadband. What is protocol testing
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Broadband refers to high-speed internet access. Protocol testing is the process of verifying if a communication protocol is working correctly.
• Broadband is a type of internet connection that provides high-speed data transmission.

• It allows for faster download and upload speeds compared to traditional dial-up connections.

• Protocol testing involves checking if a communication protocol is functioning as intended.

• This include...read more
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Q3. Siignal that use a wide range of frequences
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Signals that use a wide range of frequencies are called broadband signals.
• Broadband signals have a wide range of frequencies that can carry large amounts of data.

• Examples of broadband signals include Wi-Fi, cable TV, and satellite communications.

• These signals require specialized equipment to transmit and receive them.

• Broadband signals are used in various industries, including telecommunications, broadcasting, and inter
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Q4. A mathod of validating protocol
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Q1. Fiber colour code
Add your answer
Q2. Fiber losses per km
Ans. 
Fiber losses per km refer to the amount of signal loss that occurs in optical fibers over a distance of one kilometer.
• Fiber losses per km are measured in decibels (dB) and are influenced by various factors such as fiber type, wavelength, connectors, and splices.

• Different types of fibers have different loss characteristics. For example, single-mode fibers typically have lower losses compared to multimode fibers.

• Losses c...read more
Answered by AI
View 1 more answer

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B tech in Electrical