11. Modern Computer are very reliable but they are not a. Fast b. Powerful c. Infallible d. Cheap 12. What is the name of the display feature that highlights are of the screen which requires operator attention? a. Pixel b. Reverse video c. Touch screen d. Cursor 13. IMB launched its first personal computer called IBM-PC in 1981. It had chips from Intel, disk drives from Tandon, operating system from Microsoft, the printer from Epson and the application software from everywhere. Can you name the country which contributed the video display? a. India b. China c. Germany d. Taiwan 14. Personal computers use a number of chips mounted on a main circuit board. What is the common name for such boards? a. Daughter board b. Motherboard c. Father board d. Breadboard 15. In most IBM PCs, the CPU, the device drives, memory expansion slots and active components are mounted on a single board. What is the name of this board? a. Motherboard b. Breadboard c. Daughter board d. Grandmother board

 

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11-[N-ethoxycarbonyl-4-piperidylidene]-8-chloro-6,11-dihydro-5H-benzo-[5,6]-cyclohepta-[1,2-b]-pyridine (C22H23CIN2O2) is a nonsedative antihistamine, known as loratadine and marketed as Claritin. The preperation of the active pharmaceutical ingredient (API) is described in U.S. 4,282,233 (to Schering). The patent describes reacting 16.2g of 11-[N-methyl-4-piperidylidene]-8-chloro-6,11-dihydro-5H-benzo-[5,6]-cyclohepta-[1,2-b]-pyridine (C20H21CIN2) in 200ml of benzene with 10.9g of ehtylchloro formate (C3H5CIO2) for 18 hours. The mixture is cooled, poured into ice water, and seperated into aquaeous organic phases. The organic layer is washed with water and evaporated to dryness. The residue is triturated (ground to a fine powder) with pertroleum ether and recrystallized from isopropyl ether.
a.) What is the reaction byproduct?b.) The reaction appears to be carried out under conditions that maximize both selectivity and conversion (long time at low temperature), as might be expected given the cost of the raw material. If the conversion is 99.9% and the selectivity for the desired ethoxycarbonyl substituted compound is 100%, how much excess ethylchloroformate remains at the end of the reaction?c.) What fraction of the ethylchloroformate feed is lost to waste products?d.) Assuming that the volumes of water and isopropyl ether used in the quenching, washing and recrystallization steps are the same as the initial solvent volume, and that none of these materials are reused in the process, estimate the total mass of the waste material produced per kg of the API.e.) If the recovery (plant yield) of the API from the washing and recrstallization steps is 92%, estimate the feed flow rates of 11-[N-methyl-4-piperidylidene]-8-chloro-6,11-dihydro-5H-benzo-[5,6]-cyclohepta-[1,2-b]-pyridine and ehtylchloroformate required to produce a batch of 10kg of the API.f. How much API could be produced per batch in a 3.8m^3 (1000 US gal) reactor?
g. What would be the advantages and disadvantages of carrying out the other process steps in the same vessel?

 

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13. When is the opportunity cost of holding money higher? A. When interest rates are high. B. When interest rates are low. C. When people hold less cash and more financial assets. D. When the money supply increases.

 

 

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13. Suppose the total-cost function for a firm is given by C-qwv a) Use Shephard’s lemma to compute the (constant output) demand functions for inputs l and k. b) Use your results from part (a) to calculate the underlying production function for q.

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13. On January 3, 2011, Haskins Corporation acquired 40 percent of the outstanding common stock of
Clem Company for $990,000. This acquisition gave Haskins the ability to exercise significant influence
over the investee. The book value of the acquired shares was $790,000. Any excess cost over
the underlying book value was assigned to a patent that was undervalued on Clem’s balance sheet.
This patent has a remaining useful life of 10 years. For the year ended December 31, 2011, Clem
reported net income of $260,000 and paid cash dividends of $80,000. At December 31, 2011, what
should Haskins report as its investment in Clem under the equity method?

 

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