Lok Sewa questions Mastoid air cells

Q.  Basic views for mastoid air cells is/are
A.  Townes view
B.  Right lateral oblique
C.  Left lateral obloque
D.  All

Q.  For lateral oblique view of mastoid region, angle of centering beam is
A.  15° cauded
B.  25° cauded
C.  35° cranial
D.  45° cranial

Q.  The Schuller method is done for 
A.  Petromastoid region 
B.  Mandible 
C.  Paranasal sinuses 
D.  Base of skull

Q.  The centering point for mastoid lateral oblique is
A.  Above Gonion
B.  Behind Inion
C.  5 cm above and 2.5 cm behind EAM
D.  Just at glabella

Q.  For Townes view in mastoid region, CP is at 
A.  Midway between EAM
B.  EAM
C.  EOP
D.  Above glabella

Q.  What is seen within foramen magnum in Townes view? 
A.  Dorsum Sella 
B.  Petrous ridge
C.  EAM 
D.  Nasal spine