10+ Interview Questions and Answers

The percentage of voltage plus or minus in 3 phase is typically 5-10%.

• Voltage fluctuations in 3 phase systems are common due to various factors such as load imbalances, voltage drops, and harmonics.

• The percentage of voltage variation can range from 5-10%, depending on the specific system and conditions.

• Voltage regulators and stabilizers can be used to mitigate voltage fluctuations and ensure stable power supply.

Power consumption will be less if the fan runs at low speed.

• The power consumption of a fan is directly proportional to its speed.

• Reducing the speed of the fan will reduce the power consumption.

• This is because the motor will require less energy to rotate the blades at a slower speed.

The equipment of transformer includes core, winding, insulation, tap changer, cooling system, and bushings.

• The core is made of laminated steel sheets and provides a path for magnetic flux.

• The winding is made of copper or aluminum and carries the current.

• Insulation is used to prevent short circuits and breakdowns.

• Tap changer is used to change the voltage ratio of the transformer.

• Cooling system is used to dissipate heat generated during operation.

• Bushings are used to connect th...read more

The color of silica gel used in boiler is usually blue or orange.

• Silica gel is used in boilers to absorb moisture and prevent corrosion.

• Blue silica gel indicates that it is dry and orange indicates that it is saturated with moisture.

• The color changes as the silica gel absorbs moisture.

• Silica gel is also used in packaging to keep products dry.

Layout refers to the arrangement of elements on a page or screen.

• Layout is important in design to ensure visual hierarchy and readability.

• It involves organizing elements such as text, images, and whitespace.

• Examples of layout include website design, magazine spreads, and product packaging.

• Good layout should be aesthetically pleasing and functional.

• Layout can also refer to the physical arrangement of components in a circuit or system.

A boiler is a closed vessel in which water or other fluid is heated to generate steam or hot water.

• Boilers are used in various industries such as power generation, heating, and manufacturing.

• They can be fueled by various sources such as coal, oil, gas, or biomass.

• Boilers can be classified based on their design, fuel type, and application.

• They require regular maintenance and safety checks to prevent accidents.

• Examples of boilers include steam locomotives, power plant boilers, ...read more

Quality is the degree of excellence of a product or service that meets or exceeds customer expectations.

• Quality is meeting or exceeding customer expectations

• It involves consistency, reliability, and durability

• Quality can be measured through various metrics such as defect rate, customer satisfaction, and on-time delivery

• Quality is a continuous process that involves identifying and addressing defects and improving processes

• Examples of quality products include Apple's iPhone, To...read more

5S is a methodology for workplace organization and VSM is a tool for process improvement.

• 5S stands for Sort, Set in Order, Shine, Standardize, and Sustain

• 5S helps to improve efficiency, safety, and quality in the workplace

• VSM stands for Value Stream Mapping

• VSM is used to identify and eliminate waste in a process

• VSM helps to improve lead time, quality, and cost

• Both 5S and VSM are commonly used in Lean manufacturing

Kaizen and 3M,7QC are continuous improvement methodologies used in production. Here are some examples.

• Kaizen: 5S, Poka-Yoke, Kanban, Andon, Gemba Walk

• 3M: Muda, Mura, Muri

• 7QC: Pareto Chart, Fishbone Diagram, Control Chart