List the procedure for adjusting an oxyacetylene torch for brazing
What will be an ideal response?
Check to see that the regulators on the acetylene and oxygen cylinders are adjusted out CCW.
Stand behind the acetylene cylinder on the side opposite the regulator and use the tank valve key to turn the acetylene tank valve counterclockwise the minimum amount required to get a reading on the cylinder pressure gauge.
Stand behind the oxygen cylinder on the side opposite the regulator and crack open the valve counterclockwise.
Once you see a reading on the oxygen cylinder presure gauge, open the oxygen tank valve all the way counter clockwise.
Regulate the acetylene and oxygen pressures by slowly turning the regulators in clockwise and observing the pressure gauges.
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An insulated steam turbine is to produce 100 MW of power. Superheated steam enters the turbine at 12 MPa and 600°C, and saturated water exits the turbine at a pressure of 80 kPa. There are two design constraints to be considered:
(1) The turbine blade design requires that the quality of the steam to be no less than 0.90 to maintain blade durability. (2) The maximum mass flow rate of steam that the system can utilize is 100 kg/s. Plot the mass flow rate of steam necessary to produce 100 MW of power for exit qualities ranging from 0.9 to 1.0, and then determine the range of exit qualities that satisfy both design constraints. Determine the necessary mass flow rate of the steam. Given: P1 = 12.0 MPa; T1 = 600°C; W?=100 MW=100,000 kW; P2 = 80 kPa; Steam State 1 is the inlet, state 2 is the outlet. Assume: Q? = 0 (insulated) Also, for a turbine, assume steady-state, steady-flow, single-inlet, single-outlet flow, with ?KE = ?PE = 0
What is the major hormone stimulating milk production in cattle?
a. GH c. VFA b. prolactin d. galactose
When a component is used to perform the function of start, it is generally connected in ____________________ with the existing start button.
Fill in the blank(s) with the appropriate word(s).
Constant velocity automatic transaxles utilize multiple gears to achieve fuel economy.
Answer the following statement true (T) or false (F)