Which of the statements are true and which are false. Correct the false ones.

a) The current Instrument Landing Systems in use at virtually all airports are becoming adequate for the increasing volume of aircraft.

b) The MLS has the advantage of allowing aircraft to lock on to the final approach anywhere within 5-mile segment.

c) The MLS is expensive for airlines and airports.

d) A Being 747 of British Airways is testing a satellite navigation aid to bring the aircraft onto the final approach.

e) Many of the aircraft are already fitted with GPS equipment.

Choose the most correct answer.

1. The replacement System being suggested instead of the Instrument Landing System is the ...

a) Global Position System.

b) Differential Global Positioning System.

c) Microwave Landing System.

d) Satellite navigation aid.

2. The advantage of using the Differential Global Positioning System lies in the fact that many aircraft .

a) are already fitted with Global Position System j equipment.

b) are locked on to the final approach anywhere within a 25-mile ‘segment’.

c) are testing a satellite navigation aid.

d) can fly a curved approach instead of a straight line approach.

Give synonyms for the following.

a) alterations f) to permit

b) to propose g) precise

c) to work h) supplied

d) about i) to get

e) benefit j) testing