Technician A says an offset fillet weld is typically used when one section of the rail is slid inside another. Technician B says high strength steel is mostly used for parts that are hydroformed. Who is correct?
A. Technician A only
B. Technician B only
C. Both Technicians A and B
D. Neither Technician A nor B
D. Neither Technician A nor B
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Which of the following is NOT one of the arguments against the engagement of
corporations in so-called socially responsible behavior?
a. Based on their legal status, they are technically prohibited from such activities. b. Such behavior detracts from the basic mission society has given business. c. Social responsibility programs have the potential to create substantial conflicts of interest. d. Business executives lack the expertise to make decisions about social programs. e. There is too much potential for abuse of the power corporations have now without adding to it.
Two variables that have a great impact on the system performance of air-conditioning systems are:
A) Return-air wet-bulb temperature and the airflow across the evaporator. B) Airflow across the condenser and condenser water flow. C) High-side pressure and airflow across the condenser. D) High-side pressure and condenser water flow.
Which of the following is often moved to a lot when an access road is placed in a sloping site?
A. fill material B. anchor bolts C. footing D. radon
A rigid, nonconducting tank with a volume of 4 
is divided into two unequal parts by a thin membrane. One side of the membrane, representing 1/3 of the tank, contains nitrogen gas at 6 bar and 100°C, and the other side, representing 2/3 of the tank, is evacuated. The membrane ruptures and the gas fills the tank.
(a) What is the final temperature of the gas? How much work is done? Is the process reversible?
(b) Describe a reversible process by which the gas can be returned to its initial state. How much work is done?
Assume nitrogen is an ideal gas for which 
and 