Hello MKR, 

Actually You got it wrong, I’ll try to answer your query, just read thoroughly

JEE Main is the platform for students aspiring to secure admission into NITs, IIITs, and other state-funded engineering colleges.

It is the first step for IIT aspirants to gain admission into the top IITs across the country.

JEE paper 1 and 2 are for both engineering as well as for architecture.

JEE Main Paper-1 evaluates the aptitude of candidates who want to pursue BE/BTech at NITs, IIITs and CFTIs.

This exam is also the eligibility test for JEE advanced which is the entrance exam to secure admissions in programmes on offer by 16 IITs and Indian School of Mines (ISM).

All the papers are for 3 hours and the pattern of paper 1 and 2 of engineering may change, it is not fixed.

Talking about Paper 1,sepcifically, the pattern and question will be different 

hey,

that sounds funny, cause is impossible. all papers are different, though pattern of questions can be ssame but not the wxact question