If the inventors of the first heavier-than air machines capable of powered flight had been transported forward 100 years to the present day, they might be astonished at the way that those who followed them have colonised the air. Today's vehicles bear little resemblance to the shaky craft flown at Kitty Hawk on December 17th 1903, by Wilbur and Orville Wright. New crafts have broken the sound barrier, mastered vertical take-of and landing and visited the moon. Airplanes have now "mastered" the sound barrier that is to say, they have¾.
ক. bettered it
খ. controlled it
গ. gone past it
ঘ. silenced it
উত্তর: controlled it
ব্যাখ্যা: Passage-এ বলা হয়েছে: “...New crafts have broken the sound barrier, mastered vertical take-off and landing...” “Mastered” মানে হলো full control, skillfully managing the phenomenon। Sound barrier ভাঙা বা surpass করা অর্থ partial achievement; কিন্তু “mastered” বোঝায় বিমানগুলো এটি নিয়ন্ত্রণ ও দক্ষতার সাথে পার করে। তাই literary context অনুযায়ী correct answer হলো controlled it।
Admission জাতীয় বিশ্ববিদ্যালয় (বিজ্ঞান) প্রশ্নব্যাংক ২০০৩-২০০৪ MCQ — Prosthuti প্রশ্নব্যাংক
Admission · জাতীয় বিশ্ববিদ্যালয় (বিজ্ঞান) প্রশ্নব্যাংক · ২০০৩-২০০৪ · MCQ
If the inventors of the first heavier-than air machines capable of powered flight had been transported forward 100 years to the present day, they might be astonished at the way that those who followed them have colonised the air. Today's vehicles bear little resemblance to the shaky craft flown at Kitty Hawk on December 17th 1903, by Wilbur and Orville Wright. New crafts have broken the sound barrier, mastered vertical take-of and landing and visited the moon. Airplanes have now "mastered" the sound barrier that is to say, they have¾.
- ক.bettered it
- খ.controlled it
- গ.gone past it
- ঘ.silenced it
উত্তর