KONE Associate Engineer Interview Questions and Answers

Q1. Basic Gate Level Questions.
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Q2. Aptitude questions.
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Q1. HVAC system design
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Key considerations in HVAC system design include load calculation, equipment selection, ductwork design, and energy efficiency.
• Performing accurate load calculations to determine heating and cooling requirements

• Selecting appropriate HVAC equipment based on the load calculations and building requirements

• Designing efficient ductwork layout to ensure proper air distribution

• Considering energy efficiency measures such as hig...read more
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Q2. Questions on pipe flow and bernoulii principle
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General aptitude questions

There was a general topic of drone technology and we discussed about it

Q1. Draw stress strain curve for ductile and brittle material
Ans. 
Ductile materials have a gradual stress-strain curve with noticeable yielding before fracture, while brittle materials have a sudden fracture without much deformation.
• Ductile materials show a gradual increase in stress with strain, followed by necking and eventual fracture.

• Brittle materials have a steep stress-strain curve with minimal plastic deformation before sudden fracture.

• Examples of ductile materials include ste...read more
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Q2. Draw shear force diagram for cantilever beam
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Shear force diagram for a cantilever beam shows the variation of shear force along the length of the beam.
• Start with the free end of the cantilever beam and draw the reactions at the fixed end.

• Calculate the shear force at different points along the beam using the equations of equilibrium.

• Plot the shear force values on the diagram with appropriate scales and directions.

• The shear force diagram will show the variation of ...read more
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Q3. What is condensation
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Condensation is the process by which a gas or vapor turns into a liquid.
• Occurs when warm air cools down and cannot hold as much moisture

• Commonly seen on windows on a cold day

• Can be a result of humidity in the air
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Q4. Modes of heat transfer in engine
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Modes of heat transfer in engine include conduction, convection, and radiation.
• Conduction: Heat transfer through direct contact between solid surfaces, such as engine components.

• Convection: Heat transfer through the movement of fluids, such as coolant circulating in the engine.

• Radiation: Heat transfer through electromagnetic waves, such as heat radiating from the engine.
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Q5. Ac working principle explain
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AC works by removing heat from the air inside a space and transferring it outside, cooling the indoor air.
• AC units use refrigerant to absorb heat from indoor air

• The refrigerant then moves to the outdoor unit where it releases the heat

• The cooled refrigerant returns to the indoor unit to absorb more heat

• The process continues until the desired temperature is reached
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