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SSC JE 2019-20 Technical Quiz 82

Attempt now to get your rank among 375 students!

Question 1

Once-through boilers operate at

Question 2

The time taken to drill a hole through a 25 mm thick plate with the drill rotating at 300 rpm and moving at a feed rate of 0.25 mm/revolution is

Question 3

Match List-I with List-II and select the correct answer using the code given below the lists:
List-I
[A]. System
[B]. Phase
[C]. Phase equilibrium
[D]. Components
List-II
[1]. Free energy is a minimum
[2]. Chemical elements or chemical compounds
[3]. Consists of solids, liquids or gases or their combination
[4]. Homogeneous portion of a system that has uniform physical characteristics

Question 4

Which of the following is the reason for crater wear to form at some distance from the tool tip_____?

Question 5

What is the main feature of non conventional machining over conventional or traditional machining operation.

Question 6

A closed system receives 80 KJ heat but its internal energy decreases by 40 KJ. Then the work done by the system is

Question 7

If we increase the temperature, the viscosity of the gas will

Question 8

The value of kinetic energy correction factor for turbulent flow is ________.

Question 9

What is hunting of thermostatic expansion valve_____?

Question 10

For cutting a rectangular blank of 50 mm × 200 mm from a sheet of 1 mm thickness (mild steel, shear strength= 240 N/mm²). The required force for blanking operation is _____ kN.

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