Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
What is the limitation on the thickness of specimens for a hardness test ? Calculate the minimum thickness for one specimen for the Rockwell and Brinell test?
A mass of 5 kg of saturated water vapor at 300 kPa is heated at constant pressure until the temperature reaches 200 0C. Calculate the work done by the steam during this process.
In gantry crane ,there are are two motors one for horizontal motion , i.e. 400kg weight is to be moved 6m with 100m/min.Another motor is to lift 1500 kg weight vertically of 0.6m with speed 20m/min.
1. Steam is contained in a closed rigid container with a volume of 1 m3. Initially, the pressure and temperature of the steam are 7 bar and 500°C, respectively. The temperature drops as a result
A distillation column, as shown in the figure to the right, is a device used to separate components with different volatilities. What is the mole fraction of ethanol in the bottoms product?
A centrifuge is used to remove solids from a 14.0 ppg mud using 8.33 ppg water. The mud and water enter the centrifuge at 40 gpm and 20 gpm, respectively. The underflow and overflow densities are 23
Determine the pressure in bars and the enthalpy, in kJ/kg, at state 2. Determine the temperature, in degrees Celsius, and the enthalpy at state 3.
A long bar of rectangular cross section, 0.4 m x 0.6 m on a side and having a thermal conductivity of 1.5 W/m x K, is subjected to the boundary conditions shown below. Two of the sides are maintaine
The inside temperature of the firebrick layer was measured at 600 C and the temperature of the outside of the insulation at 60C. What is the temperature drop across the steel layer?
Calculate the velocity component at the point (2, 0.5, 0). Develop an equation for the streamline passing through this point. What is the value of c for the streamline passing through the given poin
Water at 50kPa and 150 deg Celsius enters a constant-area pipe (A=0.08m^2) with a velocity of 11m/s. At some point farther downstream in the pipe, the pressure and temperature are 10k Pa and 200 deg
An fcc iron-carbon alloy initially containing .2 wt% carbon is carburized at an elevated temperature and in an atmosphere where in the surface carbon concentration is maintained at 1.0 wt%.
Consider a 20-L evacuated rigid bottle that is surrounded by the atmosphere at 100 kPa and 27 Celsius. A valve at the neck of the bottle is now opened and the atmospheric air is allowed to flow into
The results you get from ginput will need to be rounded to the nearest integer so you can use them to index your data (use the round function).
A cylinder with mass M=.225kg slides down a long vertical tube. The tube is lubricated with a thin layer of glycerin at T=30C in the gap between the cylinder and the tube.
When the hydrofoil shown was tested, the minimum pressure on the surface of the foil was found to be 70 KPa absolute when the foil was submerged 1.8 m and towed at a speed of 8 m/s. at the same dept
A differential pressure is measured with a U-Tube monometer having water as the manometer fluid. The results of the measurement indicate that increased sensitivity would reduce resolution uncertaint
A turbine takes in 2 kg/s neon at 27 degC and 200kPa with negligible velocity. The produced work is 75 kW and 30 kW of heat leaks into the turbine from the surroundings. The neon exits at 100 kPa an
The wet feed material to a continuous dryer contains 50 wt% water on a wet basis and is dried to 27 wt% by countercurrent air flow. The dried product leaves at the rate of 907.2kg/h.
Air enters the compressor of a gas turbine at 100 kPa, 300 K, and a volumetric flow rate of 5.0 m3/s. The air is compressed in two stages to 1200 kPa, with intercooling to 300 K between the stages a
Moist air with dry and wet bulb temperatures of 295K and 282K respectively enters a steam-spray humidifyer at rate of 90 kg of dry air/min. Saturated water vapor at 383K is injected at 52 kg/min.
A steel angle iron, loaded in compression is added to a structure in order to increase its rigidity. Although the two ends are attached by rivets, the end fixity is sufficiently questionable that pi
Two kg of saturated liquid water at 1 bar is compressed to 25 bar and 100°C in a water pump. Determine the change in internal energy (kJ) and enthalpy (kJ) of water.
The convection heat transfer coefficient is 100 W/m^2K. If the thermal conductivity of the window is 1.2 W/mK, determine the inner surface temperature of the window.
The final pressure is 3 bar. Find the final temperature and total heat transfer for the process to reach thermal equilibrium with a single uniform temperature.