GATE ME 2021 Paper 1 — page 19

Complete GATE ME 2021 Paper 1 overview, original pages and practice · Timed previous-paper practice

Questions 55–57 of 65. Imported answers require review unless explicitly marked reviewed.

Paper practice 65 questionsPage 19 of 22

Consider a steam power plant operating on an ideal heat Rankine cycle. The work input to the pump is 20 kJ/kg. The work output from the high pressure turbine is 750 kJ/kg. The work output from the low pressure turbine is 1500 kJ/kg. The thermal efficiency of the cycle is 50%. The enthalpy of saturated liquid and saturated vapour at condenser pressure are 200 kJ/kg and 2600 kJ/kg, respectively. The quality of steam at the exit of the low pressure turbine is ______ % (round off to the nearest integer).

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In the vicinity of the triple point, the equation of liquid-vapour boundary in the

phase diagram for ammonia is

, where

is pressure (in Pa) and

is temperature (in K). Similarly, the solid-vapour boundary is given by

. The temperature at the triple point is ______ K (round off to one decimal place).

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A cylindrical jet of water (density = 1000 kg/m³) impinges at the center of a flat, circular plate and spreads radially outwards, as shown in the figure. The plate is resting on a linear spring with a spring constant

kN/m. The incoming jet diameter is

cm.

Diagram for Mechanical Engineering question 47

If the spring shows a steady deflection of 1 cm upon impingement of the jet, then the velocity of the incoming jet is ______ m/s (round off to one decimal place).

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2021 · Paper 1

Question 45

Question 46

Question 47