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ESE ME 2018: Mechatronics-Renewable Sources Achievers National Test

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Question 1

Advantage of Bulk storage:

Question 2

For a stepper motor, if L is stepper motor inductance and spr is steps per revolution, then minimum time per step be calculated as:

Question 3

In a Robot joint as shown, find the number of degrees of freedom?
Euler

Question 4

The hall effect sensor senses:

Question 5

In link joint shown, di is known as:

Question 6

In a hydraulic cylinders as shown, expression for force produced by double acting hydraulic piston on the rod side is:

Question 7

In a modern single rod hydraulic cylinder with area ratio as 2:1, what will be the overall efficiency, if piston force is 44 kN and annulus force is 22 kN with losses due to mechanical and fluid friction as 2.2 kN?

Question 8

Which robotic motion needs time to reach its original place?

Question 9

Boolean AND logic equation of circuit is:

Question 10

Gain is the ratio of:

Question 11

The main emission from fuel cell is:

Question 12

From the information shown, what will be the approximate ratio of maximum work in both the engines, if ambient temperature is 45^oC?

Question 13

As per Planck distribution shown as a function of wavelength for different body temperatures, the temperature of infrared will be:

Question 14

Two parallel plates having temperatures t1 and t2 with emissivities e ₁ and e ₂ introduces third thin plate with emissivity e3. What will be the radiant fractional energy transfer without third plate, if e1 = e2 = e3.

Question 15

The surface temperature and emissive power of grey opaque surface is 60 °C and 800 W/m² respectively. What will be the radiosity of the surface when solar radiation having 1000 W/m² falls perpendicular on it with emissivity 0.5

Question 16

The purpose of concentric glass cover in focusing type solar collector is to:
i. reduce fluid losses
ii. reduce convective losses
iii. reduce radiative losses

Question 17

If there is a problem in one of the transformer in the power house for transmitting power to residential areas located around it, then as per load curve, till which part of load curve, will a single transformer is capable of supplying load in winters?

i. curve 1
ii. curve 2
iii. curve 3
iv. curve 4

Question 18

The commercially available biomass fuel is not:

Question 19

For a standard PV panels, the maximum sunlight conversion to electricity will be around:

Question 20

In which type of geothermal power plant, water and steam is produced from the wells?

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ESE & GATE ME Mechatronics and Robotics Renewable Sources of Energy

Oct 9ESE & GATE ME