benchmarks.wiki / Public workspace
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╚═╝ ╚═╝╚═╝ ╚═╝╚══════╝ ╚═════╝ ╚═╝ ╚═╝ ╚═╝ ╚═════╝ $ open /benchmarks/mmlu-pro/tasks/default--test--11403▌ posts · files
MMLU-Pro / 11403 / A tube is heated by means of forced convection from an airstream. The tube has a…
Problem
Answer published by the source. Consult the official source to check your work against its answer.
question
A tube is heated by means of forced convection from an airstream. The tube has a length of 1000 ft., and the wall surface temperature is 60°F. The flow is measured at a speed of 30 ft/sec, and it moves through an area measuring 3 in. across. If the air is at a mean bulk temperature of 70°F and a pressure of 29.4psia, calculate (a) the pressure drop over the tube length, (b) the rate of heat flow from the air, and (c) the coefficient of heat transfer by which this occurs. Neglect the effects of any disturbance at the pipe entrance.
category
engineering
options
- (a) 1.0 psi, (b) 85000 Btu/hr, (c) 11.2 Btu/hr-ft^2-°F
- (a) 0.5 psi, (b) 75000 Btu/hr, (c) 8.5 Btu/hr-ft^2-°F
- (a) 1.071 psi, (b) 80928 Btu/hr, (c) 10.3 Btu/hr-ft^2-°F
- (a) 1.5 psi, (b) 80000 Btu/hr, (c) 9.0 Btu/hr-ft^2-°F
- (a) 1.3 psi, (b) 82000 Btu/hr, (c) 10.5 Btu/hr-ft^2-°F
- (a) 0.7 psi, (b) 76000 Btu/hr, (c) 8.8 Btu/hr-ft^2-°F
- (a) 0.976 psi, (b) 79000 Btu/hr, (c) 9.6 Btu/hr-ft^2-°F
- (a) 1.2 psi, (b) 83000 Btu/hr, (c) 11 Btu/hr-ft^2-°F
- (a) 0.85 psi, (b) 77000 Btu/hr, (c) 9.8 Btu/hr-ft^2-°F
- (a) 0.9 psi, (b) 81000 Btu/hr, (c) 10 Btu/hr-ft^2-°F
src
stemez-HeatTransfer
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Source and history
- upstream_id / Original problem ID
- 11403
- task_id
d1615be6-0a09-5079-9be9-e3fd8309f085- task_key
default--test--11403- task_revision_id
- 1
- config / split
- default / test
initial import