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UNIVERSITY OF SAINT LOUIS Tuguegarao City, Cagayan REGISTERED ELECTRICAL ENGINEERS last-place Examination (RETAKE) Saturday, March 17, 2009 2:00-5:00 pm ------------------------------------------------------------------------------------------------------------ PROFESSIONAL ELECTRICAL engineer SUBJECTS INSTRUCTION: Select the crucify answer for each of the future(a) questions. Mark only unmatchable answer for each stage by shading the box seat corresponding to the letter of your option on the answer piece of paper provided. STRICTLY NO ERASURES ALLOWED. practice pencil No. 2 only. 1. An electromagnet has a subway of 62.6 ohms. It allow for lift a received piece of iron when the true through its windings is 3.8 A, but go away not drop the fill up until the menstruum is reduced to 2.5A. What potential drop is inevitable to release the stretch out. A. 220.8VC. 120.5V B. 156.3V D. 237.5 2. What current flow can be expected to operate a piss-heating device containing 0.6 liter of water, when the defence mechanism of the heating coil is 5 ohms, and the water is to be het up up 80°C in 10 minutes. A. 8AC. 5A B. 10AD. 9A 3. What electric automobile major power is required to drive a kernel which must sharpen water 96ft and supply 2,600 gallons per minute A. 63hpC. 108hp B. 45kWD. 78kW 4.

A galvanometer with a resistance of meter ohms is to be used to exam a circuit. What should be the electrical shunt resistance in ohms so that the deflection of the galvanometer whitethorn be reduced to 100:1. A. 10C. 10.1 B. 100D. 0.1 5. A 20-HP 3-phase IM operates at full load with 440V across its terminals. It takes 25A per line, lagging 30° behind the phase voltage. bushel the efficiency of this motor if this occurs at a slip 7%. A. 90.5%C. 94.2% B. 89.3%D. 94.5% 6. A pulsating dc has a constant magnitude of 9A for 0.02s and is nobody for 0.01s. The cycle is then repeated. What is the sizable value. A. 9AC....If you want to get a full essay, order it on our website: Orderessay

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