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DMRC 2018 Mechanical Engineering Quiz 3

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Question 1

The process used for relieving the internal stresses previously set up in the metal and for
increasing the machinability of steel, is

Question 2

A reaction turbine (hydraulic) discharge 34m³/s of water under a head of 8 m and with an overall efficiency of 91%. The power developed in MW is:

Question 3

Discharge (Q) of a centrifugal pump is given by:
Where, D = Diameter of impeller at inlet.
b = Width of impeller at inlet.
V_f = Velocity of flow at inlet

Question 4

The device which permits the connection and disconnection of shaft is:

Question 5

How many links does a pantograph mechanism contain?

Question 6

The crank pin is to be connected in the bush and the dimensions for the bush and crank are given respectively of in mm are

Maximum clearance between bush and crank pin is ______.

Question 7

Which cross – section of a cantilever beam which is loaded with UDL can give economical design:

Question 8

The relation between the number of links (L) and number of pairs (P) forming a kinematic chain having only lower pairs is :

Question 9

A 0.5m diameter pipe bifurcates at a Y-section into two branches 20cm and 40cm in diameter. If the rate of flow in the main pipe is 0.6 m³/sec and through the smaller diameter pipe is 0.25 m³/sec. Determine the velocity of flow in 40cm pipe.

Question 10

For the velocity potential function ∅= x² – y². Find the velocity components at x = 3 and y = 4

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ESE & GATE ME General

Apr 23ESE & GATE ME