List of top Indian Knowledge System Questions on Vedic Studies asked in CUET (PG)

What is necessary for the Environment conservation according to this mantra ? 

What is the root in the word 'Veda' ?
How many varnas are there in Vamshasth Chhandah ?
Choose the series of the following:
A. Rohiṇī
B. Swātīḥ
C. Vāyuḥ
D. Brahmāḥ