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Pawl Ratchet
How do pawl and ratchet works?
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Power Consumed
If v=220V, I=25A, power factor=0.8, frequency=400Hz. If the motor runs for 3 hours, What is the power consumed?
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Diesel and Petrol Engines
Why diesel engines are called as high torque engines and petrol engines as high speed engines?
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Resistance Force
A mass of 100kg is falling from a height of 1m and penetrates the sand to 1m. What is the resistance force of the sand?
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Potential Voltage
Van de graff generator produces a voltage of 100,000 V but it does not harm us, where as, a 220V in wall outlet leads to death, Why?
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Engine Power
What does unit PS for the engine power means?
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Air Scooper
What are the uses of air scooper?
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Setting Down Operation
What is meant by setting down?
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Frictional Force
What is the difference between tractive force and frictional force? Which one drives the vehicle? What are the directions of the forces with respect to the wheel?
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Bending Moment
What is the shape of bending moment diagram if a lone moment act at the mid point of the simply supported beam?
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Convert Square Block to Circular Shaft
Which operation converts the square block into circular shaft?
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Lathe
How a lathe can be specified?
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Energy Required to Break a Material
What is the energy required to break the material is called as?
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Refrigerator Tubes
In domestic refrigerator, What are the tubes at the back of the refrigerator called as?
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Battery Discharge
How can loose terminals of the battery in the automobile cause discharging?
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Archimedes' Principle
According to Archimedes principle, mass of an object in water would be less than mass of an object in air.So imagine an object of 5 kg and weight of a vessel containing water as 100 kg. The total weight is 105 kg. Now place a weighing machine under the water vessel and immerse the object into the water. Now can I except the weighing machine shows the weight less than 105 kg?
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Quality Governed Diesel
Why diesel is called as quality governed?
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Railway Engine Motor
What motor do they use in railway engines for traction?
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Water Freezing Point
When salt is added to water, what happens to its freezing point?
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Disc Brake
Why do most of the vehicle have disc brake only in the front axle?
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Thermal Efficiency
Why the thermal efficiency of the engine decreases at part load?
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Engine Test
How to find the max load of the engine?