CIL 2020: MiniMock -1 for ESE & GATE ME Exams

Question 1

Which material has highest value of poission’s ratio?

Question 2

1 kg of air is contained in a piston cylinder arrangement at 1.5 MPa, 1000 K which expands in a reversible isothermal process to a volume 10 times its initial volume. The heat transferred in the process equals:

Question 3

Consider the two-dimensional velocity field given by where are constant. Which one of the following conditions needs to be satisfied for the flow to be incompressible?

Question 4

The leaks in a refrigeration system using Freon are detected by which of the following method?

Question 5

For parson's reaction turbine,the degree of reaction is........

Question 6

In a neutral flame, what is the temperature in the inner core?

Question 7

Which of the following is not a gas defect?

Question 8

The extent of grain growth largely depends on

Question 9

Which fluid property shows that the mercury does not wet the glass?

Question 10

The efficiency of superheat Rankine cycle is higher than that of simple Rankine cycle because _______.

Question 11

Hollow statues and thin ornaments are made by

Question 12

What is the thermal efficiency range in Brayton cycle?

Question 13

What is the value of Prandtl number for highly viscous oils?

Question 14

Usually Rankine efficiency of a Steam Power Plant

Question 15

Refrigerant having highest value for the enthalpy of vaporization

Question 16

Which dimensionless number tells about transition from laminar to turbulent flow in free convection?

Question 17

A boiler shell of cylindrical shape, having a capacity of 2 m³ is subjected to an internal pressure of 1600 kPa . The strain gauge readings in the longitudinal and perpendicular directions are 25×10^-6 and 112.5×10^-6 . Due to this , the change in volume suffered by the boiler shell is( in cm³) _________.

Question 18

A bar produces a lateral strain of magnitude -30 * 10^-5 when subjected to tensile stress of magnitude 150 MPa along the axial direction. What is the elastic modulus of the material, if the Poisson’s ratio is 0.3?

Question 19

The percentage of carbon in pig Iron varies from:

Question 20

For underwater welding which of the following process is not used?

Question 21

Which of the following fluids are used in Electrolux refrigerator?

Question 22

Two solid circular shafts of radii R₁ and R₂ are subjected to same torque. The maximum shear stresses developed in the two shafts are τ₁ and τ₂. If R₁/R₂ = 2, then τ₂/τ₁ is ___________

Question 23

A streamline and an equipotential line in a flow field

Question 24

By what process, maximum hardness is obtained for a component made of steel ?

Question 25

A thin cylinder of inner radius 500 mm and thickness 10 mm is subjected to an internal pressure of 5 MPa. The average circumferential (hoop) stress in MPa is _________.

Question 26

During a polytropic process, the heat rejected is given by

Question 27

What does ‘50’ represents in 50H8/g7?

Question 28

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

Question 29

Vaccuum is measured by

Question 30

Ratio of the pressure rise in rotor blades to the pressure rise in stages in an axial flow compressor is defined as