Strengths of a rivet in single shearing, in bearing and in tearing are 3425 kg, 4575 kg and 5025 kg respectively. If the load in the member is 35 tonnes, the number of rivets required, is
13
A simply supported beam carrying a uniformly distributed load over its whole span, is propped at the centre of the span so that the beam is held to the level of the end supports. The reaction of the prop will be
5/8th the distributed load
The hardness of steel increases if it contains
cementite
After a capacitor has charged for 1 tc, what percentage of current remains in the resistor?
36.8
Reactance in an inductive circuit will:
increase with frequency
If an apple is released from an orbiting spaceship, it will
move along the spaceship at the same speed
A Hall effect sensor
is a noncontacting magnetic sensor
The basic difference between a fuse and a circuit breaker is
a circuit breaker is reusable
A liquid is kept in a glass beaker. Which molecules of the liquid have the highest potential energy?
Molecules lying in the surface film
Which of the following statement is incorrect?
The velocity ratio of a machine is the ratio of load lifted to the effort applied.
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