Engineer 1
10+ Engineer 1 Interview Questions and Answers for Freshers
Q1. What is the important of optical fiber for communication
Optical fiber is important for communication due to its high bandwidth, low attenuation, and immunity to electromagnetic interference.
High bandwidth allows for faster data transmission over long distances
Low attenuation ensures signals can travel far without losing strength
Immunity to electromagnetic interference results in clearer communication
Used in telecommunications, internet connectivity, cable television, and more
Q2. What are the basics of fiber?
Fiber is a material made of long, thin strands of glass or plastic that transmit data through light signals.
Fiber optics use total internal reflection to transmit data through light signals
Fiber cables are made of glass or plastic fibers that are bundled together
Fiber is used in telecommunications, internet connections, and medical imaging
Fiber can transmit data over long distances with minimal signal loss
Q3. What is protection of power transformer
Protection of power transformer involves implementing measures to prevent damage or failure of the transformer due to various factors.
Protection relays are used to detect abnormal conditions and isolate the transformer from the system.
Overcurrent protection is used to prevent damage from excessive current flow.
Differential protection compares the current entering and leaving the transformer to detect internal faults.
Temperature monitoring helps prevent overheating of the tran...read more
Q4. What are the 3 types of fibre?
The 3 types of fibre are soluble fibre, insoluble fibre, and resistant starch.
Soluble fibre dissolves in water and helps lower cholesterol and regulate blood sugar levels (e.g. oats, beans, fruits)
Insoluble fibre does not dissolve in water and promotes healthy digestion by adding bulk to the stool (e.g. whole grains, vegetables)
Resistant starch resists digestion in the small intestine and acts as a prebiotic, feeding beneficial gut bacteria (e.g. green bananas, legumes)
Q5. What type of network is fiber?
Fiber is a type of network that uses fiber optic cables to transmit data at high speeds.
Fiber networks use fiber optic cables to transmit data
Fiber networks are known for their high speed and reliability
Examples of fiber networks include Fiber to the Home (FTTH) and Fiber to the Premises (FTTP)
Q6. What connection is Fiber?
Fiber is a connection that uses optical fibers to transmit data through light signals.
Fiber optics use thin strands of glass or plastic to transmit data as pulses of light.
Fiber connections are known for their high speed and reliability.
Examples of fiber connections include Fiber to the Home (FTTH) and Fiber to the Premises (FTTP).
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Q7. Find anagrams of given String in another String.
Anagrams of a given string in another string
Create a hashmap of characters in the given string
Iterate through the other string and check for anagrams using the hashmap
Return an array of strings containing the anagrams found
Q8. Types of relay and it's functions
Relays are devices that act as switches to control electrical circuits. They come in various types with different functions.
Electromechanical relays: use electromagnets to mechanically operate the switch
Solid-state relays: use semiconductor devices to switch the circuit on and off
Time delay relays: introduce a time delay before switching the circuit
Overload relays: protect electrical circuits from overloads by disconnecting power
Latching relays: maintain their state even afte...read more
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Q9. What is purpose of maintenance
Maintenance ensures equipment, machinery, or systems are kept in good working condition to prevent breakdowns and ensure optimal performance.
Prevent breakdowns and extend equipment lifespan
Ensure optimal performance and efficiency
Reduce safety risks and downtime
Save costs in the long run by avoiding major repairs or replacements
Q10. What is solar inverter
A solar inverter is a device that converts the DC electricity generated by solar panels into AC electricity for use in homes and businesses.
Converts DC electricity from solar panels to AC electricity
Allows for use of solar energy in homes and businesses
Helps manage and optimize solar power production
Examples: SMA Solar Inverters, Enphase Microinverters
Q11. Types of transformer testing
Transformer testing includes routine tests, type tests, and special tests to ensure proper functioning and safety.
Routine tests: include insulation resistance, turns ratio, winding resistance, and polarity tests.
Type tests: include temperature rise, short-circuit withstand, impulse voltage, and dielectric tests.
Special tests: include noise level, partial discharge, and harmonics tests.
Testing is crucial to ensure transformers meet performance standards and safety regulations.
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