Civil Design Engineer Interview Questions and Answers

F1, F2, F3 are function keys used in AutoCAD for various commands and shortcuts.

• F1 is used for Help function in AutoCAD.

• F2 is used for Text Window function in AutoCAD.

• F3 is used for Object Snap function in AutoCAD.

Calculation of mortar quantity

• Mortar quantity is calculated based on the volume of bricks or blocks being used.

• The ratio of cement, sand, and water in the mortar mix is also important.

• The standard ratio for mortar mix is 1:4 (cement:sand).

• The water-cement ratio should be around 0.5.

• The quantity of mortar required can be calculated using the formula: Volume of bricks/blocks x 0.0015.

• This formula assumes a mortar joint thickness of 10mm.