GATE CH 2022 Paper 1 — page 18

Questions 52–54 of 65. Imported answers require review unless explicitly marked reviewed.

A venturi meter (venturi coefficient,

) is connected to a pipe of inner diameter 50 mm. Water (density 1000 kg m

) is flowing through the pipe. The pressure-drop measured across the venturi meter is 50 kPa. If the venturi throat diameter is 20 mm, the estimated flow rate of water is ______

(rounded off to two decimal places).

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In a constant-rate cake filtration operation, the collected filtrate volumes are 120 m

and 240 m

at 1 min and 2 min, respectively. Assume the cake resistance to be constant and the filter medium resistance to be negligible. If the pressure-drop across the cake is 10 kPa at 1 min, its value at 2 min is __________ kPa (rounded off to the nearest integer).

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A cylindrical fin of diameter 24 mm is attached horizontally to a vertical plane wall. The heat transfer rate from the fin to the surrounding air is 60% of the heat transfer rate if the entire fin were at the wall temperature. If the fin effectiveness is 10, its length is __________ mm (rounded off to the nearest integer).

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2022 · Paper 1

Question 52

Question 53

Question 54