SSN College of Engineering Interview Questions, Process, and Tips

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Q1. Accommodation and food was discussed in interview but not provided at free cost
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Q2. Salary was deducted for food and accommodation
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Q1. In which quadrant/quadrants a conventional buck converter operates?
Ans. 
A conventional buck converter operates in the fourth quadrant.
• A buck converter is a type of DC-DC converter that steps down the input voltage to a lower output voltage.

• In the fourth quadrant, both the input voltage and current are negative.

• The buck converter operates by turning on and off a switch to control the flow of current through an inductor.

• During the on-time of the switch, energy is stored in the inductor, and ...read more
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Q2. What is difference between topology and configuration?
Ans. 
Topology refers to the arrangement of elements in a network, while configuration refers to the specific settings of those elements.
• Topology focuses on the structure and connectivity of a network.

• Configuration deals with the individual settings and parameters of network devices.

• Topology determines how devices are connected and how data flows.

• Configuration involves setting up IP addresses, protocols, security settings, e...read more
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Q3. What happens if the freewheeling diode is removed in a conventional buck converter?
Ans. 
Removing the freewheeling diode in a conventional buck converter can lead to reverse voltage spikes, damaging the circuit.
• The freewheeling diode provides a path for the inductor current when the switch is turned off.

• Without the diode, the inductor current has nowhere to go, causing a reverse voltage spike.

• This spike can damage the switch and other components in the circuit.

• The diode also helps to maintain a continuous ...read more
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Q1. What is definition of THD?
Ans. 
THD stands for Total Harmonic Distortion.
• THD is a measurement of the distortion in an electrical system caused by harmonics.

• It quantifies the amount of harmonic content present in a signal compared to the fundamental frequency.

• THD is expressed as a percentage or a ratio.

• Lower THD values indicate better signal quality and less distortion.

• THD is commonly used in audio systems to assess the fidelity of sound reproduction.

• ...read more
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Q2. What are the advantages of multilevel inverters?
Ans. 
Multilevel inverters offer several advantages over traditional inverters.
• Higher output voltage levels can be achieved, allowing for better control of power flow.

• Reduced harmonic distortion in the output waveform, resulting in improved power quality.

• Lower switching losses and improved efficiency compared to conventional inverters.

• Ability to handle higher power levels without the need for high voltage components.

• Flexibil...read more
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