General Knowledge Pt. II
o WHAT IS THE SLENDERNESS RATIO? Columns used for construction have a definite value called the crippling load or buckling loadthe load at which the column bends or
What is the slenderness ratio?
Columns used for construction have a definite value called the crippling load or buckling loadthe load at which the column bends or buckles but does not break. The effective length of the column is the length of an equivalent column of the same material and cross sectional area with hinged ends and having the value of the crippling load equal to that of the given column. The least radius of gyration is the radius of gyration where the least moment of inertia is considered. The ratio of effective length to the least radius of gyration is called the slenderness ratio of the column.
What is special about temple square?
The Temple Square in Utah is very religious place for the members of The Church of Jesus Christ of Latter Day Saints. It’s symbolic of the holy ordinances or covenants that take place there To Mormons, the Gospel of Jesus is not complete without temples The Temple Square is special because it reminds the Mormons of the sacrifices by the pioneers who erected it. It is also the headquarters of the Church of Jesus Christ of Latter Day Saints.
Who discovered saturn’s rings?
Christian Huygens, a Dutch physicist and astronomer, found out that Saturn has rings. He also discovered the Titan, the moon of Saturn.
Is there any magnet with a single pole?
Magnets found in nature and those made by man, are found to have two poles without exception. In contrast, electrical charges can be separated from each other. Several experiments to detect magnetic monopoles have been inconclusive.
When did the first manned balloon flight take place?
In the late eighteenth century two French papermakers, the Mont golfer’s brothers, began experimenting with hot air balloons. On Oct 15, 1783, a French scientist, Francois de Rozier became the first person to make a balloon ascent. He rose to a height of 80 ft in a balloon made by the Mont golfers.
What is vsat the acronym for?
VSAT stands for Very Small Aperture Terminal. VSAT nodes are networked together, using an antenna directed at a geo-stationary satellite. VSAT technology is used for transmission of information and is extremely popular in banking and financial services, Multisided manufacturing and for linking government offices.
Have you heard ofbuckyballs?
Buck balls are microscopic spheres of 60 carbon atoms that resemble a dome. They have cavities large enough to hold other atoms — even full molecules. Unless heated to a very high temperature, the contents of the cavities do not emerge. This has enormous potential in the fields of medicine, miniature mechanics, battery technology and high strength materials.
What is ‘nuclear winter’?
‘Nuclear winter’ is used to describe the aftermath of a nuclear explosion caused due to a nuclear war or a nuclear accident. The impact of this explosion would be so devastating that unquantifiable amounts of dust and smoke would be released into the earth’s stratosphere. This would block the sun’s energy from reaching the surface of the earth, thereby lowering the temperature. The period of this effect would be determined by the intensity of the explosion. ‘Nuclear winter’ would threaten the existence of life on Earth.
How does a gas lighter work?
Certain crystalline materials (like quartz, |Rochelle salt and certain ceramics) have piezoelectric behaviour. When you apply pressure to them, you get a charge separation within the crystal and a voltage across the crystal that is sometimes extremely high. For example, in a barbecue lighter, the popping noise you hear is a little spring-loaded hammer hitting a crystal and generating thousands of volts across the faces of the crystal. A voltage this high is identical to the voltage that drives a spark plug in a gasoline engine. The crystal’s voltage can generate a nice spark that lights the gas in the grill.
How does a pilot know the route to a destination he is flying?
Pilots rely heavily on computerized controls and with the assistance of the autopilot and the flight management computer, steer the plane along their planned route. They are monitored by air traffic control ‘stations they pass along the way. They regularly check their fuel supply, condition of their engines and the air-conditioning, hydraulic, and other systems. Pilots may request a change in altitude or route if circumstances dictate.
What kind of healing did dr edward bach pioneer?
Dr Edward Bach pioneered a kind of healing called flower remedy therapy. This treats predominantly mental and emotional manifestations of disease, relying on administration of remedies derived from the flowering parts of plants. Dr Bach considered total 38 remedies sufficient to treat the most common negative moods that afflict mankind. After his death, many remedies were added and now the total is more than 200. He believed that the remedies were divinely enriched.
Why do we feel that the air is fresh after it rains?
PEOPLE living in cities like Mumbai, Delhi and Bangalore are bound to feel that the air is fresh after the first heavy monsoon showers. This is because the bowers bring down from the sky, gases like sulphur dioxide, carbon monoxide, etc. These first monsoon showers, however, cause harm to many freshly planted saplings in these cities.
The filament of an electric bulb is heated to very high temperatures. How come it does not bum?
THE filament does not bum because the bulb is filled with inert gases like argon and nitrogen. Oxygen is necessary for any combustion.
What are asteroids?
YOU must have read that the sun has nine planets revolving around it, including the earth. In addition to that, there are some small bodies which also revolve around the sun. These bodies are called planetoids or asteroids. Most of the asteroids are seen revolving between the planets, Mars and Jupiter. The diameters of asteroids are a few hundred kilometers and even less, whereas the smallest planet, Mercury, has a diameter of about 4,868 kilometers.
Who invented the bicycle?
THE first known patent of a machine that resembled a bicycle was given to Jean Theson in 1645. It had four wheels and was driven by two men. The first two-wheeled machine was invented by a Frenchman, Baron Karl de Drais (Baron von Drais) in 1818. But it did not catch on. What caught on was the bicycle, invented by a blacksmith, Kirkpatrick Macmillan of Scotland.
How do forests help to prevent floods?
ONE of the major reasons for floods is erosion of soil from the area near thd banks of
the river. Forests have a dense cluster of trees in them. The roots of the trees hold on to the soil and prevent the erosion. It is therefore important that trees should not be cut indiscriminately, particularly near the banks of the rivers.
Do volcanic explosions and earthquakes occur inside oceans also?
The waves that we see in the seas and oceans are mainly caused by air currents. The size of the sea waves depends on the speed of the wind and for how long the wind has been blowing. Tide and ebb are caused by the pull of the moon (and to some extent, the pull of the sun) on the water. Mighty waves like tsunamis are caused by earthquakes below the water surface in seas and oceans.
What is viscosity?
Viscosity is a property seen in fluids that offers resistance to a body moving through them. It is equivalent to friction. Whenever a body falls through a viscous fluid, it reaches a terminal velocity or uniform speed due to the viscous force that balances gravity.
Why is it that we can walk more easily on wet sand than on dry sand?
Have you not come across the Newton’s Laws Of Motion? Everyone continues in a state of rest or uniform motional, unless compelled to do otherwise by an impressed (external) force. Walking is possible because the ground on which we walk offers some resistance. Assuming the resistance is zero, the foot that is placed forward will keep moving forward and you will fall. Even dry sand offers some resistance. That is why you can walk on it, if you are careful. Wet sand offers much more resistance and hence you can walk more easily on wet sand.
What is a retro-rocket?
Newton’s first law of motion governs a spaceship travelling in space: It continues to travel at uniform speed. Since there is no reaction in space, a retro-rocket fired in the direction opposite to that of the motion, reduces the speed of the spaceship.
What is torquewrench?
Torque is the force that causes circular motion. The force used to tighten a screw is the most common example of torque. In mechanical engineering in general and automobile engineering in particular, certain screws need to be tightened with a predetermined torque. The torque wrench is a gadget in which the appropriate value of torque can be set and the wrench loosens its grip on the screw once the predetermined value of torque is reached.
An otolaryngologist is a physician. What does he specialise in?
An otolaryngology’s is a physician who specializes in the problems of the ear, nose and throat (ENT). Myocardial infarction is the technical term for…? Unique is the application of liquid nitrogen to
