Donaldson India Filter Systems 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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Q1. What is the TCP three-way handshake process?
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The TCP three-way handshake process is a method used to establish a connection between a client and a server in a TCP/IP network.
• Client sends a SYN (synchronize) packet to the server to initiate the connection

• Server responds with a SYN-ACK (synchronize-acknowledge) packet to acknowledge the request

• Client sends an ACK (acknowledge) packet back to the server to confirm the connection establishment
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Q2. What are the stages of the Cyber Kill Chain and penetration testing?
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The Cyber Kill Chain is a framework used to describe the stages of a cyber attack, while penetration testing involves simulating these stages to identify vulnerabilities.
• Reconnaissance: Gathering information about the target.

• Weaponization: Creating a payload to exploit vulnerabilities.

• Delivery: Sending the payload to the target.

• Exploitation: Executing the payload to gain access.

• Installation: Establishing a foothold on ...read more
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Q3. Yes alwayrs a I righte kbnbjbvbb
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Q1. Electrical Engineering Questions
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Q2. Electrical Testing
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Q1. Engineering Questions
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Q2. Work location
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Group discussion about past job and experience

Numerical questions and reasoning

Q1. Salary negotiation
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Q1. Final round with German team
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Technical+ few Aptitude

EV,AI .The GD Round was conducted around 15 mins where each one of them given chance to speak

Q1. What is Shear force and Bending Moment Diagrams
Ans. 
Shear force and Bending Moment Diagrams are graphical representations of the internal forces acting on a beam.
• Shear force diagram shows the variation of shear force along the length of a beam.

• Bending moment diagram shows the variation of bending moment along the length of a beam.

• Shear force is the force that acts parallel to the cross-section of the beam, while bending moment is the moment that causes bending of the be...read more
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Q2. Draw the Rankine Cycle
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Rankine Cycle is a thermodynamic cycle used in steam power plants to generate electricity.
• Rankine Cycle consists of four main components: a boiler, turbine, condenser, and pump.

• The cycle starts with the boiler where water is heated to produce high-pressure steam.

• The high-pressure steam then enters the turbine, where it expands and produces mechanical work.

• After exiting the turbine, the steam enters the condenser where ...read more
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Q1. How calculate the weight of plates
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The weight of plates can be calculated by multiplying the density of the material by the volume of the plate.
• Determine the density of the material the plate is made of (e.g. steel has a density of 7850 kg/m^3)

• Measure the dimensions of the plate (length, width, thickness)

• Calculate the volume of the plate using the formula: volume = length x width x thickness

• Multiply the volume by the density to get the weight of the pla
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Q2. How many types of mechanical tools
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There are various types of mechanical tools used in construction and maintenance work.
• Hand tools (e.g. hammer, screwdriver, wrench)

• Power tools (e.g. drill, saw, grinder)

• Heavy equipment (e.g. excavator, bulldozer, crane)

• Measuring tools (e.g. tape measure, level, calipers)
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Q1. How many types of Beam
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There are mainly three types of beams: Simply supported beam, Cantilever beam, and Overhanging beam.
• Simply supported beam is supported at both ends and carries load in the middle.

• Cantilever beam is supported at one end and carries load at the other end.

• Overhanging beam has one or both ends extending beyond its supports.
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Q2. How many types of Flanges
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There are several types of flanges used in piping systems for connecting pipes, valves, and other equipment.
• Weld Neck Flange

• Slip On Flange

• Socket Weld Flange

• Threaded Flange

• Blind Flange

• Lap Joint Flange

• Orifice Flange
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