JET STREAM

#1. The arbitrary lower limit of jet core velocity has been assigned by WMO as

• A60 kt
• B60 m/s
• C70 m/s

#2. Jet stream has

• Aone maxima
• Bone or more maxima
• Conly two maxima

#3. The vertical wind shear in Jet stream is about

• A5m/s km
• B6m/s km
• C8m/s km