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SSC JE 2019-20 Technical Quiz 81

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Question 1

The unit of surface tension is

Question 2

Match List-I with List-II and select the correct answer using the codes given below the lists:
List-I
[A]. Elasticity
[B]. Malleability
[C]. Ductility
[D]. Plasticity
List-II
[1]. Deform non elastically without fracture
[2]. Undergo plastic deformation under tensile load
[3]. Undergo plastic deformation under compressive load
[4]. Return to its original shape on unloading

Question 3

Which of the following can possibly represent an adiabatic process?

Question 4

The tendency of a diesel engine to knock increases, if

Question 5

Which among the following is not an example of multi cutting tool?

Question 6

In an orthogonal cutting process the tool used has rake angle of zero degree. The measured cutting force and thrust force are 500 N and 250 N, respectively. The coefficient of friction between the tool and the chip is _________

Question 7

The time by which the activity completion time can be delayed without affecting the start of succeeding activities, is known as

Question 8

The strength of a brazed joint

Question 9

Cold working of steel is defined as working

Question 10

A 0.9 m long plate is welded by manual metal arc welding process using welding current of 150A, arc voltage of 20V and welding speed of 5 mm/s. If the process efficiency is 0.8 and surface resistance is 36 micro-ohm, the heat input
(in J/mm) will be____?

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