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UP Polytechnic Lecturer: Mechanical Paper -1 || Quiz 3
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Question 1
Whirling speed of a shaft coincides with natural frequency of its.
Question 2
When a pair of cation and anion is absent from crystal, it is called _________.
Question 3
A block of 100 N is kept on inclined plane which makes an angle 30 ° with horizontal. Find the component of weight parallel to inclined plane ?
Question 4
In PERT and CPM network the dummy activity
Question 5
In a Hartnell governor, the mass of each ball is 2.5kg, maximum and minimum centrifugal forces on the balls are 2000 N and 100 N corresponding to radii 20cm and 15 cm respectively. Lengths of vertical and horizontal arms of the bell-crank levers are the same, then what is the spring stiffness in N/cm?
Question 6
The body will be in equilibrium if the two forces are______.
Question 7
The ratio of the Euler’s critical buckling load for a slender column fixed at both the ends and other column with one end fixed and the other end hinged is
Question 8
When the frictional force helps to apply the brake, then the brake is said to be_____.
Question 9
For a thin spherical shell subjected to internal pressure, the ratio of volumetric strain to diametrical strain is ___________.
Question 10
In a forest logs were to be carried from one side to the other side of the river bank. If the velocity of the logs being pulled is 14 m/s, and the river flows at velocity of 8 m/s. what would be the resultant velocity of the logs?
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