1. Normal shock waves --- to the local flow --- a)Perpendicular b) parallel c) same d) independent

Elements Of Electromagnetics
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ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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C/ Answer the following
1. Normal shock waves -- - to the local flow
a)Perpendicular b) parallel c) same d) independent
2. Consider the following statements
I.
For isentropic flow, the throat, or section of minimum area always
correspondings to the sonic condition
II.
For isentropic flow, the sonic condition M =1 can only abtained at a
throat, or section of minimum area.
Choose the correct option
a)statement (I) is true, but statement (II) is false
b)both statements (I) and (II) are true
c)statement (I) is false, but statement (II) is true
d)both statements (I) and (II) are false
it is also cause
3. Airfoil wings that redirect air to cause a downforce
b)skin friction drag.. c) induced drag
a) Pressure drag
Transcribed Image Text:C/ Answer the following 1. Normal shock waves -- - to the local flow a)Perpendicular b) parallel c) same d) independent 2. Consider the following statements I. For isentropic flow, the throat, or section of minimum area always correspondings to the sonic condition II. For isentropic flow, the sonic condition M =1 can only abtained at a throat, or section of minimum area. Choose the correct option a)statement (I) is true, but statement (II) is false b)both statements (I) and (II) are true c)statement (I) is false, but statement (II) is true d)both statements (I) and (II) are false it is also cause 3. Airfoil wings that redirect air to cause a downforce b)skin friction drag.. c) induced drag a) Pressure drag
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