Test1_SAMPLE - Name: _ Page 1 ME 3720B Intro Fluid Thermo...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Name: ___________________________ Page 1 ME 3720B Intro Fluid Thermo Eng – Spring 2008 SAMPLE Test #1 (50 minutes, open textbook only) You do not need to follow any specific procedure. Use a hand-held calculator. Problem 1. (60 pts) Use margins to write down any derivations if you wish. (i) (10 pt) A 0.05 kg marble is dropped from the top of a building of 10 m height. What is the kinetic energy of the marble when it hits the ground? Answer: ___________________ [kJ] . (ii) (10 pt) A closed system of mass 5 kg undergoes a process with heat and work interactions. An amount of 250 kJ of heat is transferred from the system to the surroundings. The work done on the system (i.e., the system receives work) is 175 kJ. The initial specific internal energy is 350 kJ/kg. What is the final specific internal energy? Answer: ________________ [ ] . (iii) (10 pt) A power plant receives energy by heat transfer from a combustion fuel at a rate of 300 MW (1 MW = 10 6 W). The thermal efficiency of the cycle is 33.3%. Determine the output power, i.e., the rate of work generated. Answer: _______________ [ ] .
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Name: ___________________________ Page 2 (iv) (10 pt) Oxygen is contained in a tank whose volume is 3 0.042 m V = at 21
Background image of page 2
Background image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/28/2008 for the course ME 3720 taught by Professor Lee during the Spring '08 term at Georgia Institute of Technology.

Page1 / 3

Test1_SAMPLE - Name: _ Page 1 ME 3720B Intro Fluid Thermo...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online