1.
The arbitrary lower limit of
jet core velocity has been assigned by WMO as
a.
60 kt
b.
60 m/s
c.
70 m/s
2.
Jet stream has
a.
one maxima
b.
one or more maxima
c.
only two maxima
3.
The vertical wind shear in a
Jet stream is about
a.
5m/s/ km
b.
6m/s/km
c.
8m/s/km
4.
Compared to horizontal wind
shear the vertical wind shear in a Jet stream is
a.
weaker
b.
stronger
c.
same
5.
In a jet stream, the path of
the maximum speed is known as
a.
Core
b.
Axis
c.
Jet streak
6.
The wind speed along the axis
of a jet stream is always
a.
Uniform
b.
Not uniform
7.
Along the axis of a jet stream
there are centres of high speed winds, these are called
a.
Jet streaks
b.
Core
c.
Axis
8.
In a wavy jet the Jet streaks
are located over or near the
a.
Ridge
b.
Trough
c.
Between Trough and Ridge
9.
Sub-tropical Jet Stream (STJ)
is
a.
Westerly
b.
Easterly
c.
Southerly
10. The normal position of Sub-tropical Jet Stream is
a.
30° N
b.
27° N
c.
35° N
11. The southern most position of STJ is in February is
a.
22° N
b.
20° N
c.
18° N
12. The STJ affects India
a.
Jun to Jul
b.
Oct to May
c.
Aug to Sep
13. STJ has a layered structure. There are often two layers of maximum
wind to the...of jet core
a.
S
b.
N
c.
SW
14. The STJ strengthens
a.
Northwards
b.
Upstream
c.
Downstream
15. At and near the STJ the temperature gradient is very
a.
Small
b.
Large
c.
Moderate
16. Vertical wind shear in STJ is greater the core
a.
above
b.
below
c.
along
17. The TJ prevails over the Indian
Peninsula
a.
May to Jun
b.
Sep to Oct
c.
Jun to Aug
18. The TJ is located over the Indian Peninsula
a.
13° N
b.
17° N
c.
18° N
19. The TJ is located over Indian, approximately at a height of
a.
15 -16 km
b.
12 - 13 km
c.
11 - 12 km
20. The TJ is strongest in
a.
July - Aug
b.
Sep - Oct
c.
June
21. In the TJ the wind shears are much than the STJ
a.
more
b.
less
c.
same
22. TJ is
a.
Westerly
b.
Easterly
c.
Southerly
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