Cotmac Electronics Applications Engineer Interview Questions and Answers

Questions related to applications engineering including tolerance stack up, bearing preloading, material selection, force calculation, and costing.

• Tolerance stack up refers to the accumulation of variations in dimensions and tolerances of individual parts in an assembly.

• Bearing preloading is the application of a small amount of force to the bearing to remove any internal clearance and improve its stiffness.

• The choice b...read more

NX commandline allows users to execute commands and scripts in NX software.

• The commandline can be accessed through the 'Tools' menu in NX.

• Commands can be entered directly into the commandline or executed from a script file.

• The commandline supports a wide range of commands for modeling, analysis, and simulation.

• Examples of commands include 'create', 'modify', 'analyze', and 'solve'.

The number of systems that can be connected in a BACnet MSTP protocol network depends on factors like network speed, device types, and network topology.

• The maximum number of devices that can be connected in a BACnet MSTP network is typically limited to 127 devices.

• The actual number of systems that can be connected may vary based on the network speed and the types of devices being used.

• Factors like network topology, cab...read more

Safety interlock for AHU ensures safe operation by preventing access during operation.

• Safety interlock can be implemented using door switches to prevent access when AHU is running

• Emergency stop buttons can be installed to immediately shut down AHU in case of emergency

• Interlocks can be connected to the control system to automatically stop AHU if safety conditions are not met

BMS stands for Building Management System. It is a computer-based control system that manages and monitors a building's mechanical and electrical equipment.

• BMS controls and monitors HVAC systems, lighting, security, fire alarms, and other building systems.

• It typically consists of sensors, controllers, communication networks, and user interfaces.

• Examples of BMS vendors include Siemens, Honeywell, and Johnson Controls.

Chillers are refrigeration systems that remove heat from a liquid via a vapor-compression or absorption cycle.

• Chillers are commonly used in industrial settings to cool equipment, machinery, and processes.

• They are also used in commercial buildings to cool air and maintain comfortable temperatures.

• Chillers can be found in data centers to prevent overheating of servers and other electronic equipment.

• In the food and bevera...read more