System Engineer II Interview Questions and Answers

The aircraft air conditioning system uses thermodynamics to cool and dehumidify the cabin air.

• The system uses a refrigeration cycle to cool the air

• The compressor compresses the refrigerant gas, raising its temperature

• The refrigerant then flows through the condenser, where it releases heat to the outside air

• The refrigerant then flows through the evaporator, where it absorbs heat from the cabin air

• The cooled and dehumidified air is then circulated back into the cabin

• The system ...read more

args and kwargs are used in Python to pass a variable number of arguments to a function. Lambda functions are anonymous functions. Lists are mutable while tuples are immutable. Pickling is serializing objects in Python. List comprehension is a concise way to create lists. Django follows a Model-View-Template architecture.

• args and kwargs are used in Python functions to pass a variable number of arguments

• Lambda functions are anonymous functions defined using the lambda keyword

• L...read more

A closed loop is a control system where the output is fed back to the input for continuous monitoring and adjustment.

• In a closed loop system, the output is compared to a desired value and adjustments are made to bring the output closer to the desired value.

• Examples of closed loop systems include thermostat-controlled heating systems and cruise control in cars.

• Closed loop systems are used to maintain stability, accuracy, and control in various engineering applications.

PID stands for Proportional-Integral-Derivative. It is a control algorithm used in systems to maintain a desired output.

• PID is a feedback control mechanism that continuously calculates an error value based on the difference between a desired setpoint and the actual output of a system.

• The Proportional term adjusts the output proportionally to the error value.

• The Integral term sums up the error over time to eliminate steady-state errors.

• The Derivative term predicts future error...read more