Roto Pumps Senior Engineer Interview Questions and Answers

A resistor is an electronic component that resists the flow of electrical current.

• Resistors are used to control the amount of current flowing in a circuit.

• They are measured in ohms (Ω) and have color-coded bands to indicate their resistance value.

• Resistors dissipate energy in the form of heat when current flows through them.

• Common types of resistors include carbon film, metal film, and wirewound resistors.

A transistor is a semiconductor device used to amplify or switch electronic signals.

• Transistors are fundamental building blocks of modern electronic devices.

• They can amplify electrical signals, control the flow of current, and act as switches.

• Common types of transistors include bipolar junction transistors (BJTs) and field-effect transistors (FETs).

Refrigeration cycle is a thermodynamic cycle used in refrigerators and air conditioning systems to transfer heat from a low temperature reservoir to a high temperature reservoir.

• Consists of four main components: compressor, condenser, expansion valve, and evaporator

• Refrigerant is compressed in the compressor, then condensed in the condenser, expanded in the expansion valve, and evaporated in the evaporator

• Heat is absor...read more

Refrigeration theory involves the transfer of heat from a low temperature region to a high temperature region using a refrigerant.

• Refrigeration is based on the principles of thermodynamics, specifically the second law which states that heat naturally flows from a higher temperature to a lower temperature.

• The refrigeration cycle consists of four main components: compressor, condenser, expansion valve, and evaporator.

• The...read more

MQP stands for Manufacturing Quality Plan. It is a document that outlines the quality control processes and procedures for manufacturing a product.

• MQP includes details on quality control checkpoints throughout the manufacturing process.

• It specifies the quality standards that need to be met for the product.

• It outlines the responsibilities of different team members in ensuring quality control.

• Examples of documents provid...read more

FMEA stands for Failure Mode and Effects Analysis. RPN value is Risk Priority Number calculated by multiplying severity, occurrence, and detection ratings.

• FMEA is a systematic method for identifying and prioritizing potential failure modes in a process or product.

• RPN value is calculated by multiplying severity, occurrence, and detection ratings assigned to each potential failure mode.

• RPN helps prioritize which failure ...read more

A flow chart diagram is a visual representation of a process or workflow using symbols and arrows.

• Flow chart diagrams use different shapes to represent different steps or actions in a process.

• Arrows are used to show the flow of the process from one step to another.

• Common symbols used in flow charts include rectangles for processes, diamonds for decisions, and ovals for start/end points.

• Flow charts are helpful in visual...read more

PFMEA stands for Process Failure Mode and Effects Analysis. It is a structured approach to identifying and prioritizing potential failure modes in a process.

• PFMEA is used to anticipate and prevent potential failures in a process by identifying failure modes, their causes, and their effects.

• It involves ranking failure modes based on their severity, occurrence, and detection, to prioritize improvement efforts.

• PFMEA helps...read more

PFMEA stands for Process Failure Mode and Effects Analysis, MQP stands for Manufacturing Quality Plan, QA focuses on preventing defects while QC focuses on identifying defects.

• PFMEA is a structured approach to identifying and prioritizing potential failure modes in a process and their effects.

• MQP is a document that outlines the quality control processes and procedures for manufacturing a product.

• QA (Quality Assurance) ...read more