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SSC-JE ME || Technical Quiz-9
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Question 1
The relative jet exit velocity from a rocket is 2700 m/s. The forward flight velocity is 1350 m/s. What is the propulsive efficiency of the unit?
Question 2
If carbon present in cast iron is partly free and partly in combined state, it is called ____.
Question 3
For the radiation between two infinite parallel planes of emissivity respectively, which one of the following is the expression for emissivity factor?
Question 4
With natural uranium, which of the following is used as moderator?
Question 5
In a mass transfer process of diffusion of hot smoke in cold air in a power plant, the temperature profile and the concentration profile will become identical when
Question 6
Thermal diffusivity of a substance is
Question 7
Which of the following is an example of mesomorphous material
Question 8
For a governor running at constant speed, what is the value of the force acting on the sleeve.
Question 9
Fluid is flowing through the horizontal pipe of uniform diameter 500 mm with an average velocity of 1 m/sec the dynamic head of pitot tube is_______(in mm) ?
Question 10
In the calculation of induced shear stress in helical springs, the Wahl’s correction factor us used to take care of
Question 11
During Inelastic collision of two particles, which one of the following is conserved?
Question 12
Which of the following is true about critically damped system___?
Question 13
Which of the following is not true about Atomic Hydrogen Welding?
Question 14
PDSA is expanded as ____________
Question 15
If poisons ratio of a material is 0.15 then, which of the following relations is true?
Question 16
The difference between the time available to do a job and the time required to do the job, is known as
Question 17
Which of the following casting process uses wax pattern?
Question 18
If a thin plate is held parallel to a fluid stream the pressure drag on it is:
Question 19
In a frame, the number of joint is 5, number of members=3, the frame is
Question 20
German silver is an alloy of
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Oct 6AE & JE Exams