List of top Geology Questions on Sedimentary Structures asked in IIT JAM GG

Which one of the following primary structures can be used for paleocurrent measurement?
Choose the CORRECT statement(s) out of the following.
Find the CORRECT statement out of the following.
A limestone contains lime mud and around 25% allochems, which are separated from each other. The name of the rock as per Dunham’s classification is
Which one of the following sedimentary structures is NOT used for determining top and bottom of beds?

Match the sedimentary features in Group I with the corresponding sedimentary environments of their formation in Group II. 
Group I                                               Group II 
P. Point Bar                                         1. Tidal 
Q. Barchan                                          2. Meandering fluvial channel 
R. Dropstone                                       3. Aeolian 
S. Herring-bone cross stratification    4. Glacial 
 

Which of the following is/are NOT true for texturally immature sandstone?
A sandstone has<5% matrix. The recalculated modal compositions of feldspar, quartz, and rock fragments are 45%, 35%, 20%, respectively. The sandstone is classified as