Related Questions

The ratio of static friction to dynamic friction is always
A Equal to one
B Less than one
C Greater than one
D None of these
Static friction is always __________ dynamic friction.
A Equal to
B Less than
C Greater than
D None of these
The dynamic friction is the friction experienced by a body, when the body
A is in motion
B is at rest
C just begins to slide over the surface of the other body
D none of the mentioned
In recent times, the “dynamic brake system” is becoming popular in modern railways. The dynamic brake system coverts Kinetic energy to________:
A Potential energy
B Electricity
C Sound energy
D Magnetic energy
The static balancing is satisfactory for low speed rotors but with increasing speeds, dynamic balancing becomes necessary. This is because, the
A Unbalanced couples are caused only at higher speeds
B Unbalanced forces are not dangerous at higher speeds
C Effects of unbalances are proportional to the square of the speed
D Effects of unbalances are directly proportional to the speed
The static tooth load should be __________ the dynamic load.
A Equal to
B Less than
C Greater than
D None of these
In which of the following circumstance should you use a static reference to a non static method?
A Making a method call using parent
B Making a method call using child
C Making an object call using parent
D Making an object call using child
The maximum stress due to stress concentration in a bar having circular transverse hole, as compared to its static stress without hole will be
A Same in both cases
B 2 times more
C 3 times more
D 4 times more
The yield point in static loading is __________ as compared to fatigue loading.
A Higher
B Lower
C Same
D None of these
The yield point in fatigue loading compared to that in static loading is less. The ratio of ultimate tensile strength to endurance limit of a material subjected to fatigue loading is
A 0.5
B 1
C 1.5
D 2

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