The first cans used for food preservation were sealed with:
a. plastic c. rubber
b. metal d. lead
D
You might also like to view...
A carbon steel ring, cut about the same size as a gasket, with a piece of soft metal, such as copper, brass, or aluminum bolted across the middle of the ring is a _____.
a. steam target b. test tree c. slip blind d. blind flange
What is the difference between a jigsaw blade and a coping saw blade?
What will be an ideal response?
Your boss calls you into his office and hands you some literature from the Tuthill Corporation on steam turbines. He wants to purchase a “reconditioned” Coppus steam turbine for electrical generation needs. After some discussion, you tell him that there is 8 MPa steam (at 600 C) that is available for the turbine inlet, however it must exhaust at 100 kPa as a saturated vapor. He mentions to you that the turbine should produce 3100 kW of power. As you leave, he asks you to provide him with the following information (right after lunch!):
(a) What is the mass flow rate required through the turbine? (b) What is the efficiency of the turbine if operated in this manner? Please answer his questions AND state all assumptions (with justification...why and/or how).
________ are the most common of all construction chemicals
A) Epoxies B) Glues C) Caulks D) Contact cements