Sterling & Wilson Service Manager Interview Questions and Answers

Asked question related basic electronics.

Q1. Question related to college project and Master thesis.
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Q1. Swing operation not working in excavator, describe trouble shooting
Ans. 
Check hydraulic fluid levels, inspect swing motor, test swing motor solenoid, check for electrical issues
• Check hydraulic fluid levels to ensure there is enough fluid for proper operation

• Inspect the swing motor for any signs of damage or wear that may be causing the issue

• Test the swing motor solenoid to see if it is functioning correctly

• Check for any electrical issues that may be affecting the operation of the swing mec
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Q2. Fuel consumption high issue. Resolve method.
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Q3. Machine marching slow. Rectify
Ans. 
Check for any clogs in the machine, ensure proper lubrication, and adjust machine settings if necessary.
• Check for any clogs or blockages in the machine that may be causing it to run slow

• Ensure that the machine is properly lubricated to reduce friction and improve efficiency

• Adjust machine settings such as speed, feed rate, or pressure as needed to optimize performance
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Q1. Technical issues and solution
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Q2. As per my experience
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Q1. How can u make 4 equilateral triangles by using 6 match sticks
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Q2. Why is silica gel used in transformers
Ans. 
Silica gel is used in transformers to absorb moisture and prevent corrosion.
• Silica gel is a desiccant that absorbs moisture from the air.

• Moisture can cause corrosion and damage to the transformer's components.

• Silica gel helps to prevent this damage by keeping the air inside the transformer dry.

• It is also used in other electrical equipment, such as circuit breakers and switchgear.

• Silica gel needs to be periodically repl...read more
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Q1. Mechanical Seal Leakage how to say primary Seal Or Secondary seal Problem
Ans. 
Identifying primary or secondary seal problem in case of mechanical seal leakage.
• Check the location of the leakage to determine if it's the primary or secondary seal

• Primary seal leakage occurs on the product side while secondary seal leakage occurs on the atmospheric side

• Inspect the seal faces for wear and damage to identify the root cause of the leakage

• Check the seal flush and quench connections for blockages or impro...read more
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Q1. Need sound technical
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Q2. In depth subject knowledge
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Q1. Candidate overall screening
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Q1. Overall screening of the candidate
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Q2. Hr round is more challenging
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