CAT Question of the Day Answer the question based on the passage given below: Already, we are in an era when passenger planes are flown by just two pilots, down for a peak of around five a few decades ago. In the near future increasing automation will mean that number drops to one. And then the next stage could see planes fully piloted from the ground, like military and scientific craft. The final stage in passenger planes piloted from the ground will be to remove the human control altogether. To do, that planes will have to be capable of complex decision making. "The plane has to know its position, its current state, where it's going, what the winds are, its orientation, that kind of thing," says Davis. "You're going to need continuous health monitors to know when your systems are degrading. And it's not only avoiding collisions, but it's also not causing collisions." In other words, a plane will need to be aware of its surroundings and be able to plot a new path that is not disruptive to other users of the skies - intelligence known as "sense and avoid". This is currently the pilot's job, who can look at radar and even glance out of the window. But machine vision is not easy and requires video-cameras, sensors and powerful computers to interpret what they were seeing in real time. But progress is being made in this area. You only need to look at the rise of the autonomous car to see that computers are getting better and better at viewing an interpreting their surroundings. Current Unmanned Aerial Vehicles – even those controlled by a pilot – also already have some sense-and-avoid capability, to account for the tiny lag between an operator sending an instruction and it being delivered to a plane.
According to the passage the difference between " the era when passenger planes are flown by just two pilots " and "the final stage in passenger planes piloted form the ground" is…. - The decision making done on the ground will be mostly made onboard, by the aircraft.
- The aircraft will be packed with highly sophisticated electronics, which would relegate the pilot on board to a passive observer.
- Unlike in the era of planes flown by two pilots, in the final stage in passenger planes piloted from the ground there will be no communication required with an aircraft.
- Unlike in the era of planes flown by two pilots, in the final stage passenger planes might fly together in flocks, which can result in huge energy savings.
| OPTIONS | | |  | 1) | A only | | | 2) | A and C | | | 3) | B and C | | | 4) | B and D |
Tip of the Day To see whether a number is prime or not one needs to check whether it is divisible by the prime numbers 2, 3, 5, 7 up to the prime number less than or equal to the square root of the number itself. For example, to check whether 997 is a prime number one needs to check its divisibility with the prime numbers 2, 3, 5, 7 .... to 31. Last year's Question of the day (22-Aug-12) In the given figure, AB= AC and AD⟘ BC, ∠ABC = 30°. Let O be a point on BC such that OD = k × AD for some real number k > 0. Now we join BO and extend till P such that OP = BO – 2OD. Find ∠PCB in terms of k.  | OPTIONS | | | | | 1) |  | | | 2) |  | | | 3) |  | | | 4) |  | | | 5) | None of these |
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