Housejoy Service Engineer Interview Questions and Answers

Basic Aptitude Test,Reasoning,Maths

Q1. Thermal Power Plant Basics
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Q1. 33/11 kv pss working
Ans. 
33/11 kv pss refers to a 33kV/11kV primary substation working.
• 33/11 kv pss stands for a primary substation with a voltage level of 33kV/11kV.

• It is responsible for stepping down the high voltage from the transmission line to a lower voltage suitable for distribution to consumers.

• The substation includes equipment such as transformers, circuit breakers, and protection devices.

• It plays a crucial role in ensuring reliable p...read more
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Q2. Ht line devlopment and planning
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Q3. About youself and projects
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Q1. Sollar equipment
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Q2. Micro techf js l iu h
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Q1. How to work OGT
Ans. 
OGT stands for Overall Gas Turbine. It is a measure of the overall performance of a gas turbine engine.
• OGT is calculated by taking into account various parameters such as turbine inlet temperature, compressor discharge pressure, and fuel flow rate.

• Monitoring OGT is crucial for ensuring the efficient operation of the gas turbine engine.

• An increase in OGT may indicate a potential issue with the engine, such as fouling of...read more
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Q2. What is switch gear and how to work
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Switch gear is a combination of electrical disconnect switches, fuses or circuit breakers used to control, protect and isolate electrical equipment.
• Switch gear is used to control the flow of electricity in a power system.

• It includes devices like circuit breakers, fuses, and disconnect switches.

• Switch gear is essential for protecting electrical equipment from overloads and short circuits.

• It helps in isolating faulty equ...read more
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Q3. What is transformer safety
Ans. 
Transformer safety involves measures to prevent electrical hazards and ensure proper functioning of transformers.
• Regular maintenance and inspection of transformers is essential for safety

• Proper grounding and insulation to prevent electrical shocks

• Following safety protocols and procedures when working with transformers

• Using personal protective equipment (PPE) when handling transformers

• Avoiding overloading transformers t
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Q4. What is the chillers safety
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Chillers safety refers to the measures in place to ensure the safe operation of chillers and prevent accidents.
• Regular maintenance and inspections are crucial for ensuring the safety of chillers.

• Proper training of personnel on chiller operation and safety protocols is essential.

• Emergency shutdown procedures should be clearly defined and easily accessible.

• Safety features such as pressure relief valves and temperature se...read more
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Q5. Draw the control diagram ,Star delta and DOL Starter
Ans. 
Control diagrams for Star Delta and DOL starters are essential for understanding the operation of these motor starting methods.
• Control diagram for Star Delta starter involves two contactors and a timer for switching between star and delta connections.

• Control diagram for DOL starter includes a single contactor for direct starting of the motor.

• Both diagrams show the connections of the motor, contactors, overload relays, ...read more
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General aptitude, programing aptitude, logical and arithametic

Q1. Oops concept, inheritance, interferance,
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Q2. Class , object, init function in python,
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