Calculate the value of the coefficient of adhesion for dusty rails if the value of the coefficient of adhesion for dry rails is .55.

Calculate the value of the coefficient of adhesion for dusty rails if the value of the coefficient of adhesion for dry rails is .55. Correct Answer 0.48

The value of the coefficient of adhesion for dusty rails is .48. The value of the coefficient of adhesion for dry rails is maximum.
Bissoy MCQ

Related Questions

The coefficient of adhesion is maximum when rails are dusty.
If the coefficient of adhesion on dry rails is 0.26, which of the following could be the value for wet rails?
In a laboratory test run, the rate of drying was found to be 0.5 × 10-3 kg/m2.s, when the moisture content reduced from 0.4 to 0.1 on dry basis. The critical moisture content of the material is 0.08 on a dry basis. A tray dryer is used to dry 100 kg (dry basis) of the same material under identical conditions. The surface area of the material is 0.04 m2/kg of dry solid. The time required (in seconds) to reduce the moisture content of the solids from 0.3 to 0.2 (dry basis) is
A man weighing 60kg runs along the rails with a velocity of 18km/h and jumps into a car of mass 1 quintal standing on the rails. Calculate the velocity with which the car will start travelling along the rails.
Due to battering action of wheels over the end of the rails, the rails get bent down and are deflected at ends. These rails are called
Which among the following is used between rails and sleepers to absorb shocks, resist lateral movement of rails and provide electrical insulation between rails?
The value of coefficient of adhesion will be high when rails are
200 kg of solids (on dry basis) is subjected to a drying process for a period of 5000 seconds. The drying occurs in the constant rate period with the drying rate as, Nc = 0.5 × 10-3 kg/m2.s. The initial moisture content of the solid is 0.2 kg moisture/kg dry solid. The interfacial area available for drying is 4 m2/1000 kg of dry solid. The moisture content at the end of the drying period is (in kg moisture/kg dry solid)
A bar of length 0.7 m slides along metal rails at a speed of 1 m/s. The bar and rails are in a magnetic field of 20 T, pointing out into the page. Calculate the motional emf.
X hands over her expensive saree for cleaning to a dry cleaner who loses the same. X claims the total value of the saree. The dry cleaner refers to a clause printed in the contract receipt which states that the dry cleaner can be held liable for Rs. 50 or 10% of the original value of the cloth only, whichever is less. Which one of the following propositions holds good to explain the correct position of law on the point?