Bimbo Bakeries India Assistant Manager Maintenance Interview Questions and Answers

Q1. Explain completed details of Errection & Comissining of Pneumatic Compressor?
Ans. 
Erection and commissioning of a pneumatic compressor involves assembling the components, connecting the necessary piping, testing for functionality, and fine-tuning for optimal performance.
• Assemble the components of the pneumatic compressor according to the manufacturer's instructions.

• Connect the necessary piping for air intake, compression, and output.

• Test the compressor for functionality by running it empty and check...read more
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Q2. How to calculate blowdown of cooling tower? What are the maintenance practice followed in maintenance efficiency of cooling tower? How to calculate capacity of cooling tower?
Ans. 
Blowdown of cooling tower can be calculated using cycles of concentration. Maintenance practices include regular cleaning, inspection, and water treatment. Cooling tower capacity can be calculated based on heat load and design parameters.
• Calculate blowdown using cycles of concentration formula: Blowdown = Evaporation Loss / (Cycles of Concentration - 1)

• Maintenance practices include regular cleaning of cooling tower fil...read more
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Q3. Explain RCM in detail ?
Ans. 
RCM stands for Reliability Centered Maintenance, a proactive maintenance strategy focused on identifying and preventing equipment failures.
• RCM is a systematic approach to maintenance planning that aims to optimize maintenance tasks to ensure equipment reliability.

• It involves analyzing the functions and potential failure modes of equipment to determine the most effective maintenance strategies.

• RCM prioritizes maintenanc...read more
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Q4. Classify pumps on the basis of casings ?
Ans. 
Pumps can be classified based on their casings as follows: volute casing, axial split casing, and radial split casing.
• Volute casing pumps have a spiral-shaped casing that gradually expands to the discharge outlet.

• Axial split casing pumps have a casing split along the horizontal centerline of the pump.

• Radial split casing pumps have a casing split along the vertical centerline of the pump.
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Q5. Explain the working principle of Air compressor ?
Ans. 
Air compressor works by compressing air to increase its pressure and decrease its volume.
• Air is drawn into the compressor through an intake valve.

• The air is then compressed using a piston or rotating impeller.

• Compressed air is stored in a tank or released directly for use.

• Examples of air compressors include reciprocating, rotary screw, and centrifugal compressors.
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Q1. About your self
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Q2. Favorite subject
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Q1. Online inter view
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Q2. And operating and maintenance
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Q1. Electrical questions
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Q2. Diagrams and basics
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Communication skills

Q1. Technical skills
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Q2. Communication skills
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Q3. Group discussion
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Q4. HR communication
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Q5. Other communication
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Q6. Once time interview
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Q1. How much amp does a 30 kw moter takes
Ans. 
The amount of amps a 30 kW motor takes depends on the voltage it is operating at.
• The formula to calculate amps is: Amps = kW / (Volts * 1.73)

• For example, a 30 kW motor operating at 480 volts would take approximately 36 amps

• Higher voltage motors will draw fewer amps compared to lower voltage motors
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Q1. 1 .DOL STARTER CONNECTION 2.STAR DELTA STARTER 3.RELAY AND MCB DIFFERENCE 4.IF 3 PHASE SUPPLY IN 380V AND SINGLE PHASE SUPPLY 215V ?
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Q1. Can PLC be repaired
Ans. 
Yes, PLC can be repaired by troubleshooting, replacing faulty components, and reprogramming if necessary.
• PLC can be repaired by troubleshooting to identify the root cause of the issue.

• Faulty components can be replaced to restore the functionality of the PLC.

• Reprogramming may be necessary if the issue is related to the software or logic of the PLC.

• Regular maintenance and timely repairs can help prevent major breakdowns
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Q2. DG maintenance process?
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DG maintenance process involves regular inspections, testing, and servicing of diesel generators to ensure optimal performance and reliability.
• Regularly inspecting the diesel generator for any signs of wear or damage

• Testing the generator's components such as fuel system, cooling system, and electrical system

• Servicing the generator by changing oil, filters, and spark plugs as needed

• Keeping maintenance records and schedu...read more
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