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For a constant value of coefficient of lateral friction, the value of required super-elevation increases with

For a constant value of coefficient of lateral friction, the value of required super-elevation increases with Correct Answer decrease in speed and with increase in radius of curve

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Which of the following is NOT true about Frictional force? A. Friction is the force which opposes the relative motion of two surfaces in contact. B. The force of friction that acts when a body is moving (sliding) on a surface is called sliding friction. C. Friction in machines wastes energy and also causes wear and tear. D. Rolling friction is much more than sliding friction, the use of ball bearings in a machine considerably reduces friction.
A Broad Gauge branch line takes off as a contrary flexure from a main line If the superelevation required for branch line is 10 mm and cant deficiency is 75 mm, the superelevation to be actually provided on the branch line will be
While discussing about friction, a teacher gave a number of examples to explain the concept. Some of the examples where friction is useful in our day-to-day life as quoted by the teacher are given below : A. We are able to write because of friction between the tip of the pen and the paper. B. We are able to walk because of friction between our feet and the ground. C. A ball thrown vertically upwards comes back to us due to friction. D. We are able to stop a moving vehicle by applying brakes because of friction. The correct examples were
Consider the following statements: 1. The kinetic friction is always less than the rolling friction. 2. The kinetic friction is always equal to the rolling friction. 3. The kinetic friction is always greater than the rolling friction. Which of the following statement is correct?
Consider the following statements: 1. According to Terzaghi, the average angle of wall friction may be taken equal to two-thirds of the respective angle of internal friction. 2. Wall friction increases the active earth Pressure and also decreases the passive earth resistance of the soil 3. Wall friction decreases the active earth pressure and increases the passive earth resistance of the soil. Which of the above statements is/are Correct?
We have two types of a coefficient of friction, one is coefficient of static friction and the other one is the coefficient of the kinetic friction.
Which of the following is correct about friction? I. Rolling friction is smaller than the sliding friction II. Sliding friction is smaller than static friction 
Which of the following statements regarding laws governing the friction between dry surfaces are correct? 1. The friction force is dependent on the velocity of sliding.  2. The friction force is directly proportional to the normal force. 3. The friction force is dependent on the materials of the contact surfaces. 4. The Friction force is independent of the area of contact surfaces.
Engines are rated at specified conditions. Then which of the following statements are correct? 1. Power developed increases as local temperature increases. 2. Power developed increases as local temperature decreases 3. Power developed is not dependent on local temperature. 4. Power developed increases as local atmospheric pressure increases. 5. Power developed increases as local atmospheric pressure decreases.
Which of the following statements are true? a. The correlation coefficient is dependent on the choice of both origin and scale observations. b. The correlation coefficient is dependent on the units of measurements. c. The coefficient of correlation is the square root of the coefficient of determination. d. The zero value of the correlation coefficient cannot estimate the value of the dependent variable.