METEOROLOGICAL SERVICES FOR AVIATION

1.       For non-scheduled National Flights an advance notice (before ETD) is required to be given to Class I Met Offices

a.    3 hr

b.      18-24 hr

c.      6 hr

2.       For non-scheduled National Flights advance notice an advance notice (before ETD) is required to be given to Class III Met Offices

a.       3 hr

b.     18-24 hr

c.       6 hr

3.       World Area Forecast System provides high quality en-route forecasts of  to Met Offices

a.    Met Offices

b.      en-route forests of winds and temperature

c.      SIGMET

d.      TREND

4.       IMD has      Regional Met offices

a.       4    

b.       5  

c.    6

5.       There arc     Class I Met Offices

a.        14 

b.     19 

c.       16

6.       There are     Class III Met Offices

a.       42

b.     52 

c.       62

7.       In AIREP the Met Information is contained in Section

a.       1     

b.       2  

c.     3

8.       TAF are generally valid for

a.      18 hr

b.      12 hr  

c.     9hr

9.       The validity of Landing Forecast (TREND) is

a.       1 hr

b.    2 hr  

c.       3 hr

10.   Landing Forecast is append to

a.     METAR and SPECI  

b.      TAF  

c.       AIREP

11.   Local Forecast is issued three times a day valid for next

a.       18 hr

b.     8hr 

c.       9hr

12.   Local Forecast covers an area

a.     50 NM   

b.       100 NM  

c.       150 NM

13.   Prognostic Charts are issued by

a.     RAFC

b.       Class I Met Offices

c.       MWO

14.   Prognostic Charts are valid for

a.       18 hr

b.     12 hr 

c.       9hr

15.   S1G Wx Chart are issued for Flight Levels

a.     below 460   

b.      460

c.       above 460

16.   CODAR is

a.      Radar Report

b.    Upper report from an aircraft (other than weather reconnaissance aircraft)

c.      Coded ARFOR

17.   WINTEM is

a.      Actual upper winds

b.    Forecast upper wind and temperature

c.      Actual temperature and upper winds

18.   SIGMET is a notice of severe weather for

a.       actual      

b.       expected 

c.     both

19.   SIGMET is issued for aircraft

a.     in flight

b.       on ground 

c.      both

20.   SIGMET is issued by

a.       RAFC       

b.       Class I Met Offices           

c.     MWO

21.   SIGMET is valid for

a.     4 hr   

b.        18 hr

c.       6 hr

22.   SIGMET is not issued for

a.    Rain  

b.       Volcanic Ash

c.       SEV Icing

23.   AIRMET is issued by a MWO for the occurrence or expected occurrence of en-route weather phenomena, which may affect the safety of

a.     low-level aircraft 

b.       high -level aircraft

c.      both

24.   GAMET is an area forecast in abbreviated plain language for

a.       high -level aircraft

b.     low-level aircraft  

c.       both

25.   The validity of Airfield warnings is not exceeding

a.       3 hr 

b.     4 hr  

c.       6 hr

26.   Airfield warning is issued for expected wind speed

a.     30 kt

b.      24 kt

c.       15 kt

27.   Airfield warning is issued for wind direction of 20 kt changes by

a.     45°  

b.      30°     

c.       60°

28.   Airfield Warning for gliders, light aircraft and helicopters is issued for expected wind speed

a.       15 kt

b.     17 kt 

c.       30 kt

29.   Wind Shear Warning is issued for the observed or expected wind shear above runway

a.     up to 500 m   

b.       above 500 m

c.       300 m

30.   VOLMET is a MET information for aircraft

a.      on ground  

b.     in flight

c.       both

31.   VOLMET Radio Telephony Broadcast made on HF Channel from

a.      Mumbai only  

b.       Kolkata only 

c.    both

32.   VOLMET consists of

a.      SIGMET 

b.       TAP only

c.     TAF and METAR

33.   In ROBEX the messages exchanged are METAR/SPECI of international  aerodromes and their alternates

a.       within India          

b.     outside India

34.   SIG Weather Charts are issued .... times a day

a.       Two 

b.      Three 

c.     Four