A]Working with Projections and WMS Data
Ans)

Step 1: Open qgis->select project->new project
 
Step 2: layer->Add layer->Add Vector Layer
 
Step 3: select vector dataset->ne_10m_admin0_countries.zip->add
 
OUTPUT: 
 
Step 4: right click on layer->layer CRS->set layer CRS
 
Step 5: select North_America_Albers_Equal_Area_conic(ESRI:102008)->ok
 

OUTPUT: 
 
Step 6: Layer->save as
 
Step 7: Format (ESRI Shapefile)->file name->ok

OUTPUT: 
 

Step 8: Layer->Add  layer->Add Raster Layer
 

Step 9: Raster Dataset->minisc_gb.zip->add
 
OUTPUT: 
 
Step 10: Right click on layer->Layer CRS->Set Layer CRS
 
Step 11: select British National Grid(ESRI:27700)->ok
 

OUTPUT: 
