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SSC JE 2019 - 20 technical Quiz 40

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Question 1

A solid circular shaft is subjected to a bending moment M and twisting moment T. What is the equivalent twisting T_e which will produce the same maximum shear stress as the above combination?

Question 2

0.70 kg/s of air enters with a specific enthalpy of 290 kJ/kg and leaves it with 450 kJ/kg of specific enthalpy. Velocities at inlet and exit are 6 m/s and 2 m/s respectively. Assuming adiabatic process, what is the power input to the compressor?

Question 3

The natural vibration equation is

+ 3x = 0. Find w_n

Question 4

Why the efficiency of superheat Rankine cycle is higher than that of simple Rankine cycle?

Question 5

A spring with 25 active coils cannot be accommodated within a given space. Hence 5 coils of the spring are cut. What is the stiffness of the new spring____?

Question 6

In a certain Heat Exchanger, both fluids have R=1. The hot fluid enters at 70 C and leaves at 40 C;cold fluid enters at 20 C and leaves at 50 C . Effectiveness of the exchanger is

Question 7

A Bell – Coleman air refrigeration cycle works as a reversed

Question 8

Consider the following statements regarding Bernoulli's theorem for fluid flow:
1) Conservation of energy
2) Steady flow
3) Viscous flow
4) Incompressible flow
Which of these statements is/are correct?

Question 9

Which one of the following is a ferritic stabilizer?

Question 10

High energy rate forming process used for forming components from thin metal sheets or deform thin tubes is

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ESE & GATE ME General

Nov 11ESE & GATE ME