ISRO ME 2019 Mini Mock 2 for ESE & GATE ME Exams

Question 1

What is the mean effective pressure of air standard cycle which is 53% efficienct and having 1200kJ/kg of heat supplied, with compression ratio and swept volume of 7 and 0.656

respectively ?

Question 2

In a multiple- disc clutch, the axial intensity of uniform pressure is not to exceed 0.2Mpa. The inner radius of the discs is 100mm and is half the outer radius. The axial force per pair of contact surfaces in N is

Question 3

The function, f (

) =2

, satisfies the Lagrange’s Mean Value Theorem in the interval

[1, 5] then the value of

is

Question 4

Which of the following statement is correct about die casting _______.

Question 5

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

Question 6

two spur gears have a velocity ratio of 1/3 . The driven gear has 72 teeth of 8 mm module and rotates at 600 rpm. The pitch line velocity will be

Question 7

A plate made of steel (corrected endurance limit = 300 MPa) is subjected to a completely reversed axial force of 80 kN. The endurance limit for an axial loading is 20 % less than that of obtained on fatigue machine. The plate thickness (in mm) for infinite life is (take factor of safety = 3)

Question 8

What could be the possible momentum thickness if the displacement thickness for a velocity profile is given as

?

Question 9

Aviation industries uses which type of manufacturing technology to produce aircrafts parts with high degree of accuracy and reliability?

Question 10

Which of the following is not an assumption/limitation for applying the Bernoulli’s equation

Question 11

For a simply supported beam under uniformly distributed load of w N/m, The deflection At centre is δ. If the same beam is now fixed at both ends, what will be deflection at centre ______?

Question 12

The value of integral

, where

is

Question 13

20

gear have a module pitch of 4 mm. the number of teeth on the rear is 35 . If addendum is equal to one module, what is the radius of addendum circle

Question 14

A beam of rectangular cross-section is made of two different materials as shown in figure. The location of the neutral axis from the bottom of the composite beam is? (Given E₂=2E₁)

Question 15

Degree of reaction in a turbine is the ratio of ________.

Question 16

A wheel of moment of inertia 0.10 Kg-m² is rotating about a shaft at an angular speed of 160 rev/min. A second wheel is set into rotation at 300 rev/min and is coupled to the shaft so that both the wheels finally rotate with a common angular speed of 200 rev/min. The moment of inertia of the second wheel (in Kg-m²) is?

Question 17

A horizontal jet of water 100 mm diameter having a velocity of 15m/s strikes a fixed plate. Work done by the jet on fixed vertical plate (in Nm) is ?

Question 18

Consider the function

and refer to the following options.

Question 19

Find the reaction on the roller support in kN of the beam shown in figure. It is subjected to uniformly varying load with maximum of 10kN/m at fixed end and zero at free end as shown in figure below. ( consider Beam is propped at free end )

Question 20

An iron block is lying on a floor unrestricted in all direction also the friction between the block and the floor is zero. if a the block is heated by a temperature of 250

what should be the
volumetric strain induced in the block?