Mechanical Engineering question and answers for August 05, 2023
- Q Explain the concept of First Law of Thermodynamics in thefollowing applications: (i) Human metabolism (ii) Launching therocket (iii) Internal combustion engine
- Q 7.21 The Weather Channel reports that it is ahot, muggy day with an air temperature of 90°F, a 10 mph breeze outof the southwest, and bright sunshine with a solar...
- Q Project on mechanical properties
- Q An exhaust fan systems consists of 4 parallel v-beltswrapped around driver pulleys A and driven pulley B with a diameterof 100 mm and 240 mm respectively. Coefficient of friction, μbetween...
- Q Problem 1: Carbon dioxide flows isentropically at therate of 1 kg/s through aconvergent-divergent nozzle. The stagnation temperature is 310 Kand the stagnationpressure is 1400 kPa. If the exit pressure is...
- Q A room in the summer is to be maintained at 20°C, 50% RH whenthe outside conditions are 35°C, 80% saturation. The sensible andlatent heat gains are 5.5 kW and 1.4...
- Q A well-insulated expansion/throttle valve is designed to operatewith refrigerant R134a. It receives a liquid-gas mixture with aquality of 0.1 and a pressure of 400 kPa. The refrigerant leaveswith a pressure...
- Q •Explain in details the P-V and T-V diagrams (thermodynamcis)I need their explannation and their clear meaningif it is hand-written, keep it clear please
- Q Why is the mechanical strength of the HAZ next to the fusionline of a non-heat treatable      aluminum alloy much lowerthan that of the base metal?Why does the mechanical strength of...
- Q A vapor-compression refrigeration cycle operates at steady statewith Refrigerant 134a as the working fluid. Saturated vapor entersthe compressor at 2 bar, and saturated liquid exits the condenserat 10 bar. The...
- Q According to the valve adjustment diagram in gasolineengines, explain the following by stating on the figure. Intakevalve opening, before 15° (top dead spot), Intake valve closingafter 47° (bottom death spot),...
- Q Identify and discuss specific policy tools (taxes, carboncredits, tax credits, etc.) that would support buildingretrofitting.
- Q a) What are the differences between S-beam and W-beam? Describein no more than 250 words.b) What are the applications of I beams and H beams? Write downtwo real-life applications for...
- Q literature review about tensile testing indicating its effecton selecting materials for design applications.
- Q 1) In your own words define “discretisation†and“degrees of freedom†in terms of the finite elementmethod.a) Give thegoverning equation for a thermal analysis and briefly explain eachterm. Using this equation,...
- Q 1.  A type of section wherein the section view isprobably located out of projection with the other regular orauxiliary views is a(n) ____ section.a) removedb) outlinec) revolvedd) aligned2.  If there is a...
- Q Derive the equation of motion for the mass-springdamper system of the seismic instrument as shown in the Figure. Ifthe mass is 2 kg the spring stiffness 2.35 kN/m. dampingcoefficient 10...
- Q The cost of qualityoften refers to cost to produce a product or service according tospecificquality standards. Which of the following is not cost associatedwith the cost quality'1) Appraisalcost  2) High...
- Q Block B of mass 46.75-kg restsas shown on the upper surface of a 22.07-kg wedge A. Assume thatthe system is released from rest and neglect the friction. Determine the acceleration of...
- Q Question: The velocity components for a fluid flow are given asfollow: z(x-2)2 u = ty w = xy (t is time) t+1 a.) Is the flowincompressible or not? b.) How...
- Q Q1a) With the aid of a sketch of the hydraulic system explain thefollowingi) A Reservoir ii) A pump and a prime mover iii) A pressure controland check valve iv) A...
- Q If you leave in Northern Florida that the annual averagetemperature outside changes on the minimum to 40 F and Summer to 80F, to save energy, is it better to turn...
- Q Steam in a heating system flows through tube whose outerdiameter is 10 cm and whose walls aremaintained at a temperature of 150°C. Circular aluminum alloy2024-T6 fins (k = 186 W/m...
- Q Write a FORTRAN 77 SOFTWARE code script fortranscritical R407C air source water heat pump using R134a plusR407c refrigerant for space application.....pleasedon't write code in other program....it's mechanical engineering question
- Q Working with MATLAB arrays. You can check your answers on MATLABbut do not include a script file or MATLAB output for this problem. Just write the commands you would use...
Get Answers to Unlimited Questions
Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!
Membership Benefits:
- Unlimited Question Access with detailed Answers
- Zin AI - 3 Million Words
- 10 Dall-E 3 Images
- 20 Plot Generations
- Conversation with Dialogue Memory
- No Ads, Ever!
- Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!