Mechanical Engineering

To carry away the heat from the cutting edge and to lubricate it.

The most comon way to detect a crack in a heat exchanger is with a visual inspection, removal of the burner assembly and the use of a mirror and flash light. Or a smoke bomb test. A special little smoke bomb is placed in the burner area with the burners OFF. The blower is runnig and you light the smoke bomb, the smoke will draft up the flue vent or if a crack or rust hole is present then the smoke will get sucked into the air stream and come out of the duct work. Other than that using a carbon monoxide detector to see what the CO levels of the furnace are and comparing them to the supply air of the furnace to verify that there is no CO present in the air stream. The best and most accurate way is to contact a local Heating and Air Conditioning specialist or your local gas company should come out and perform a CO test on the furnace. Good Luck and God BLess

1 gal of #2 fuel oil (or diesel for that matter) has an equivalent of 115,000 BTUS.

I say equivalent because it has a little more than that raw (like 136k or so) but the furnace that burns it is only around 85% efficient, therefore you only get 115K BTUS.

They need to know which department is which and where the patient should go

If this is for homework at jog change the answer because I'm using it to

Nobody has a clue please ask again, if it dose not work we are very sorry - thank you

The motar which can be used 24 hours countinuosly . by which the motor quality remains same is called CONTINUOS MOTOR . The motar which can only be used used for several hours ,namely 2 hours, 4hours, 6 hours depending upon the design of manufacturer is called INTERMITTENT MOTOR.

for shell : 3.14 x d min (mtr) = Width (mtr)

So now you have L, W & Thk...so use formula L (m) x W (m) x T (mm) x 7.85 (if MS) = ___Kgs....Regarding Dish End.....OD x 1.2 = Blank OD...so you will get circle....and then again use same formula LxWxHxDensity = Kgs

This is short cut

There would be six spark plugs for a six cylinder engine. One for each cylinder. Unless it is a diesel, then there are no spark plugs.

My hydraulic unit has just gone on my 2005 320d, and was told by the main dealer that it is getting common on the 1 and 3 series. Apparently the UK is waiting for 800 and Germany for 1000. You would hope for a recall if the part is going to fail on many more cars

Power & Torque at rated RPM

Power & Torque at Prime RPM

Lubrication oil PR,

Lubrication oil Temp

Fuel Pressure

Air Intake Temp

Exhaust Temp

Coolant Temp

Turbo Pressure/ Temp if it is a turbo aspired Engine

I'm more familiar with boat propellers but I don't think this can be answered as it stands. You would need to know various factors, such as aircraft resistance, which would be influenced by factors such as aircraft shape and attitude (and hence drag), air temperature, and air pressure. Colder air and lower air pressure would lower air viscosity, which would in turn lower aircraft drag. But the propeller requires a certain air viscosity to function at its greatest efficiency, so you'd need to take that into account. You would also need to know the propeller pitch - the forward movement the propeller travels during a revolution

Surge Limit is the Minimum Flow Point ( in the compressor characteristic curve ) below which the compressor operation become instable. If the flow-rate is reduced, the pressure developed by the compressor decreases. Then, the pressure in the discharge line becomes greater , and the gas flow back into the compressor. As soon as the pressure in the discharge line drops to below that developed by the compressor, the gas again flows in the discharge line. Then, the cycle repeats. The oscillating pressure and flow rate will cause audible vibrations and shocks, and could damage the compressor blades, seals, and other components. Therefore, the compressor requires an antisurge control system to limit the flow rate at a minimum point, safely away from the surge limit.

tensile stress=tensile load/cross sectional area

ex. tensile stress= p/a= 50kilo newton x 1000n/kg divide by pi/4(20)^2

=159.15N/mm^2

True Air speed is a value corrected for possible speedometer errors caused by altitude condensation ( different temperatures and hence, resistances at differing heights) humidity, and so on, as distinct from Indicated Air speed on the dial of the Speedometer, usually called by pilots an air-speed indicator these work on a pitot tube and measure the shock wave surrounding the craft, and directly proportional to forward motion. automobile speedometers use wheels and gears as these are ground vehicles and have a lead-in speedometer cable. Planes have to measure the shock wave as there isn"t any ground contact! Hence Air Speed.

cold crushing strength of a refractory brick is gross compressive stress required to cause fracture. Maximum Structural load that a material can withstand without fracture

Exact stop check.

Surging in gasturbine means that the pressure at the delivery end of the gas turbine compressor becomes very high (as a result of reduced flow at the compressor outlet). When this happens, the compressor pressure at the delivery end increases as the flow decreases upto an extent after which the pressure does not increase and there is a flow reversal. This flow reversal releases the sudden pressure that developed on account of reduced flow. The flow reversal is accomplanied with a loud noise and tremendous vibration. Surging affects the whole machine and if it is of high magnitude, the gas turbine can be ripped apart. Anti-surge devices (Bleed valves) are installed which do not allow the flow to reduce even on low speeds and keep a certain air flow from the compressor during times of low air requirement (startup and shutdown) Surging in gasturbine means that the pressure at the delivery end of the gas turbine compressor becomes very high (as a result of reduced flow at the compressor outlet). When this happens, the compressor pressure at the delivery end increases as the flow decreases upto an extent after which the pressure does not increase and there is a flow reversal. This flow reversal releases the sudden pressure that developed on account of reduced flow. The flow reversal is accomplanied with a loud noise and tremendous vibration. Surging affects the whole machine and if it is of high magnitude, the gas turbine can be ripped apart. Anti-surge devices (Bleed valves) are installed which do not allow the flow to reduce even on low speeds and keep a certain air flow from the compressor during times of low air requirement (startup and shutdown)

The "rotor" rotates.

The "stator" is stationary.

The ability of a firm to quickly increase or decrease its production rate and still be profitable.

•A cable runs continuously in a channel between the tracks, which are located just below the street. The cable is controlled at a central station, and usually moves about 9 miles (14-5 kilometers) per hour. On the underside of each cable car is an attachment called a "grip." When the car operator pulls a lever, the grip latches onto the moving cable and is pulled along. When the operator releases the lever, the grip disconnects from the cable. The car comes to a halt when the operator applies the brakes. Also called an endless ropeway

Screw down non return valves only allow a liquid to be passed one way through it. Even when the valve is in open position valve lid is on the seat unless any liquid is pressurized from its inlet side.Any back flow will be restricted.

He didn't. The steam engine was invented by James Watt in 1712. Trevithick developed an improved high pressure steam engine in 1800. He then invented the steam locomotive in 1803 and actually built a passenger railway in London in 1812. Thomas Newcomen gave his name to atmospheric steam engines, which he invented. The first was installed in 1712 close to Dudley Castle in the Black Country. He had to share his success with Thomas Savery, who had previously taken out a general patent covering all the possible means of pumping water by ateam power.

A machine called a former pulls rod through a series of staighteners, pushed to a certain length and is sheared off. This is called a "slug". The slug then is held against a forming die by a butt die. Forming rollers come around from each side of the forming die and transfer fingers grab the formed link, rotated, and the next slug is inserted through the link. The unwelded links are run through a welder with mechanical indexes. Pressure dies come in and movable electrodes are closed onto link. A high current is passed and the pressure dies slightly close. A mechanical trimmer comes across while the links weld is still orange and the excess is trimmed.