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Fwd and rev direction of 3phase induction motor by using roller type limit switch?
To control the forward and reverse direction of a three-phase induction motor using roller-type limit switches, you can wire the motor's contactor circuits through the limit switches. When the roller switch is activated in one position, it closes the circuit for forward rotation, while activating it in the opposite position engages the reverse circuit. Ensure that both circuits cannot be energized simultaneously to prevent damage. This setup allows for safe directional control based on the position of the roller switch.
What is safe working pressure on a boiler?
Safe working pressure on a boiler is the maximum pressure at which the boiler can operate safely without risking failure or accidents. This pressure is determined by the design and construction of the boiler, as well as relevant safety codes and regulations. It is typically specified by the manufacturer and can vary depending on the type and size of the boiler. Regular maintenance and inspections are essential to ensure that the boiler operates within this safe pressure limit.
A 4700ohms resistor rated as 5watts find out it maximum safe working current?
Power dissipated = I2 RI = sqrt( P/R ) = sqrt(5/4,700) = 32.6 mA . (rounded)Note:It's only "safe" if the power actually dissipates, i.e. doesn't just hang around the resistor.32.6 mA is 'safe' if the resistor is heat-sinked, or at least out in the open air. It's not safeif the resistor is wrapped in a cozy blanket.
Why rheostats have current rating in addition to resistance rating?
A resistor, of which a rheostat is, has a maximum amount of current it can handle. Beyond that value it will start heating up a lot and might burns up. Since, the maximum resistance of a rheostat is fixed so does its maximum safe current value that can flow through it.Comment'Rheostats' and 'potentiometers' describe applications of variable resistors; they are not alternative words for variable resistors.
Why does transformer conservator gauge show maximum?
A transformer conservator gauge shows a maximum reading when the oil level in the conservator tank is at its highest, typically due to thermal expansion of the oil as it warms up during operation. This expansion causes the oil to rise in the gauge. Additionally, if there's been a recent oil fill or if the transformer is in a high ambient temperature environment, this could also contribute to the maximum reading. It's essential to monitor this gauge to ensure the oil level remains within safe operational limits.
What is more safe swimming or a roller coaster?
roller coaster
Is it okay to put a tortoise on a small and slow roller coaster?
I'm not sure but to answer that i think yes because it will be safe on a roller coaster and plus the tortoise is small right?
What are three factors that a roller coaster designer has to think about when they design a roller coaster to make it fun AND safe?
1. Safe. Always the first thing. 2. Good speed and elements a.k.a Loops 3. Good G forces.
What is the name of the most dangerous roller coaster?
That's a stupid question. Roller coasters are very safe. None can be considered "most dangerous"
Why was the first roller coaster built?
To build potential energy, which is converted to kinetic energy upon descent. The higher up the roller coaster climbs, the more potential energy it builds, thus having more kinetic energy upon descent. Since there are no motors or engines, roller coasters are reliant on this back & forth transfer of energy.
Is the big roller coaster at Oaks Park scary?
You mean Looping Thunder? I don't get scared of roller coasters. But for someone who is new to them, yes. But I Garuntee the ride is safe.
What are the early disasters of roller coasters?
Modern roller coasters are quite safe; they have many checks and are monitored often to ensure they remain safe. However, ride accidents do occur. People who aren't riding can be hit by the coaster if they enter the coaster area. As well, people who are too small can fall out of the ride if they aren't secured safely.
Chances of fainting a roller coaster?
A little less than 10%, roller coasters are safe, if you are nervous. They do checks along the track and on the machinery before a park opens every day.
What is the significance of a free body diagram in analyzing the forces acting on a roller coaster?
A free body diagram is important in analyzing the forces on a roller coaster because it helps to visually represent and isolate the forces acting on the coaster, such as gravity, normal force, friction, and tension. By breaking down these forces, engineers can better understand how they affect the motion and stability of the roller coaster, allowing for more accurate predictions and adjustments to ensure a safe and thrilling ride.
Are Six Flags amusement parks safe?
Six flags is only safe if you don't do stunts on the roller coasters like standing up, other then that six flags is fun and safe. By the way when your going down on a roller coaster sticking your hands up does not count as a stunt.
At what point in your pregnancy can you not ride a roller coaster what if you are only a month pregnant?
don't ride a roller coaster if you are pregnant. Doesn't matter how far along!! Probably nothing would happen and you would be quite safe at least until 3 months, but if anything did happen you would blame yourself.
How is riding a roller coaster scientific?
Riding a roller coaster involves various scientific principles, including physics and engineering. The thrill of the ride is largely due to concepts such as gravity, acceleration, and centripetal force. As the coaster ascends and descends, potential energy converts to kinetic energy, affecting speed and motion. Additionally, the design and safety features of roller coasters rely on mathematical calculations and materials science to ensure a safe and exhilarating experience.
