Engineering, 07.04.2020 15:53 zanaplen27
PSSC is a brokerage firm that buys and sells stocks for its clients. Thus, the main actors are broker and clients. PSSC has offices in different cities and each broker works in only one of these offices. A broker can also be an office manager (For the office he/she works in).Clients own accounts, and any account can have more than one owner like joint account. Each account is also managed by at most one broker. A client can have several accounts and a broker can manage several accounts, but a client cannot have more than one account in one office. Given these conditions, design an ER diagram for this application using CHEN’s notation, no other notation is acceptable and will not be graded. Write any unspecified requirements and any assumptions that you need to make the specification complete. In your ER diagram;
a. Identify each entity type and relationship type.
b. Identify attributes and key attributes for each entity type and/or relationship type.
c. Identify all of the structural constraints.
Answers: 1
Engineering, 04.07.2019 18:10
Thermal stresses are developed in a metal when its a) initial temperature is changed b) final temperature is changed c) density is changed d) thermal deformation is prevented e) expansion is prevented f) contraction is prevented
Answers: 2
Engineering, 04.07.2019 18:10
You are making beer. the first step is filling the glass carboy with the liquid wort. the internal diameter of the carboy is 15 in., and you wish to fill it up to a depth of 2 ft. if your wort is drawn from the kettle using a siphon process that flows at 3 gpm, how long will it take to fill?
Answers: 1
Engineering, 04.07.2019 18:10
Hydraulic fluid with a sg. of 0.78 is flowing through a 1.5 in. i.d. pipe at 58 gal/min. the fluid has an absolute viscosity of 11.8 x 105 lbf-sec/ft2. is the flow laminar, turbulent or within the critical range? give both a numerical reynolds number and a term answer.
Answers: 3
Engineering, 04.07.2019 18:20
Vibration monitoring this technique uses the noise or vibration created by mechanical equipment and in seme cases by plant systems to detemine their actual condtion. a)- true b)- false
Answers: 2
PSSC is a brokerage firm that buys and sells stocks for its clients. Thus, the main actors are broke...
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