Jr.ER Interview Questions and Answers

A proximity sensor detects the presence or absence of an object within a certain range.

• Proximity sensors use various technologies such as infrared, capacitive, or inductive to detect objects.

• They emit a signal and measure the reflection or change in the signal to determine proximity.

• For example, an infrared proximity sensor emits infrared light and measures the reflection to detect objects.

• Proximity sensors are commonly used in smartphones to detect when the device is held cl...read more

A star-delta wiring diagram is used to connect three-phase motors to the power supply.

• Star-delta wiring is a method of connecting three-phase motors to reduce starting current and torque.

• In star connection, the motor windings are connected in a star shape, while in delta connection, they are connected in a triangle shape.

• During starting, the motor is connected in star configuration to reduce the current drawn from the power supply.

• Once the motor reaches a certain speed, it is...read more

AutoCAD efficiency can be improved by utilizing keyboard shortcuts, customizing toolbars, and using blocks and templates.

• Learn and use keyboard shortcuts for frequently used commands

• Customize toolbars to have quick access to commonly used tools

• Create and use blocks and templates to save time and increase consistency

• Use the command line for faster input and editing

• Utilize the AutoCAD Design Center to quickly access and insert blocks and other design elements