Prisijungimas
Testų bankas
Testų banke jau yra 2362 testai, kuriuos galite panaudoti savo pamokoje, ir bus dar daugiau!
DalykasTestai
Matematika468
Anglų kalba442
Informacinės technologijos204
Fizika192
Istorija140
Lietuvių kalba140
Rusų kalba137
Biologija101
Chemija90
Ekonomika69
Sistemos statistika
Užregistruota mokyklų2,680
Užregistruota mokytojų23,195
Sukurta testų97,149
Sukurta klausimų2,954,040
Atlikta testavimų41,694
Moksleivių, atlikusių testavimą, skaičius361,437
Partneriai


Reading skills - DESIGNING AIRCRAFT


Klausimas #1


 DESIGNING AIRCRAFT
 
     Types of aircrafts
     A long-range airliner is designed to carry 150 passengers over 8,000 kilometres at speeds approaching 1,000 km/hr in level cruising flight. For this task four powerful jet engines and a good aerodynamic streamlined form are needed. Such an aircraft will also have high take-off and landing speeds. It is therefore operational only between airports with very long runways.
     Other airlines are designed for stages of less than 1,500 kilometres. They carry fewer passengers and can operate from shorter runways. A typical airliner used for such "short-haul' operations flies very nearly as fast as a long-range airliner but carries only 80 passengers. Since this type of aircraft must be capale of making many flights in a single day, it is important that it is designed to permit rapid servicing and refuelling and the easy exchange of passengers between the stages of its routes.
     Other types of aircraft are designed to carry bulky freight which can easily be loaded or unloaded. Such aircraft usually have a shorter range and lower cruising speed, so they are usually powered by turbo-prop or piston engines, which are less powerful but more economical than jet engines.
     The types of smaller aircraft are even more varied. Most of them are used for carrying passengers and some are equipped for special purposes, for example, for training pilots, for spraying crops, for aerial photographic surveying, for making weather observations. The twin or single engines may be jet, turbo-prop or piston type.
 

(from the Langenscheildt's "English Monthly")

Atsakymų variantai rodomi tik registruotiems sistemos eTest.lt vartotojams. Mokytojo registracija, mokinio registracija
Taškų skaičius už teisingą atsakymą: 1