Jr.ER

Jr.ER Interview Questions and Answers

Updated 24 Jun 2021

Q1. Proximity Sensor working principle

Ans.

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

Q2. Star-Delta wiring diagram

Ans.

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

Q3. AutoCAD Efficiency

Ans.

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

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