Answer:
The answer is "Option B".
Explanation:
The main drawback of commercial security is, that the software may not protect digital technology against data mining, and they are not known to be the imperial tools, that's why the only option B is correct, and certain options are wrong, which can be explained as follows:
- In option A, It used to provide a sequence of instructions, which is used in security.
- In option C, It doesn't use in security, that's why it is wrong.
- Option D and Option E are wrong because in software there is no use of court and new software, it only upgrades the software.
Answer:
Travelling in time might sound like a flight of fancy, but some physicists think it might really be possible. BBC Horizon looked at some of the most promising ideas for turning this staple of science fiction into reality.
Explanation:
Answer:
email is the easier way of communicating and fast
Answer:
One sheave means that you are using a single drum winder. They are the worst! Double drum winders control easier, brake better and are much more efficient. They save time ( two skips or cages) and can be clutched to perform faster shift transport. A single drum is slow, unbalanced and can be a nightmare if it trips out during hoisting. If the brake system is not perfect it can be a real hairy experience. For a runaway single drum, there is no counterbalance effect. It always runs to destruction. With a double drum, the driver still has a chance to control the winder to a certain extent and he has two sets of brakes to rely on. A single sheave could also mean a shaft with a single compartment. No second means of escape unless there are ladders or stairways. Not a very healthy situation.
Those are just a few points. I am sure much more can be said in favor of a double drum winder and two or more sheaves in the headgear. Most of the shafts I have worked at have multiple winders and up to ten compartments. They all have a small single drum service winder for emergencies and moves of personnel during shift times. They are referred to as the Mary - Annes. Apparently, the name originated in the U.K. where an aristocratic mine owner named the first such winder after his mistress.
Explanation:
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The oscilloscope is NOT a tool that would be considered appropriate equipment for on-site visits. The oscilloscope is an electronic test instrument used to observe observation constantly varying signals. This instruments is used in laboratories, and not on-site visits.
All other instruments are moveable and can be used on-site.
