The question type and mode is different for each part.

Part A: This part will include multiple choice questions only which have to be answered online. Part A will have 60 questions from Mathematics and General Aptitude sections.

Part B: Subjective questions will be asked in this part which have to be answered on A4 Size drawing sheets (offline). This part will have two questions only (Drawing-based).

Marking scheme: Multiple Choice Questions (MCQs) each carry 2 marks. The two questions in Part B each carries 40 marks. 

Duration: Part A will be of 60 minutes while Part B will be of 120 minutes making it total of 3 hours.for more click on below link.

https://engineering.careers360.com/articles/nata

All The Best!