CHEMISTRY
Copyright Kaplan AEC Education, 2008 PROBLEM #1 A g sample containing sodium carbonate (Na 2 CO 3 ) and inert impurities requires ml of molar HCl for titration. The percentage by weight of sodium carbonate in the sample is most nearly (a) 48.86%(c) 97.72% (b) 100%(d) 24.43%
Copyright Kaplan AEC Education, 2008 PROBLEM #2 The weight, in grams, of chromium that will be plated from a solution of Cr(NO 3 ) 3 by a current of 6.0 amp in 2.0 hours is most nearly (a) 3.9 (b) 7.8 (c) 15.6 (d) 23.4
Copyright Kaplan AEC Education, 2008 PROBLEM #3 When the equation below is balanced, what will be the coefficient of H 2 O? C 6 H 6 + O 2 CO 2 + H 2 O (a) 1(c) 6 (b) 2(d) 15
Copyright Kaplan AEC Education, 2008 PROBLEM #4 A sample of methane gas has a volume of 1.50 liters at 25 C and 1 atm pressure. What volume will it occupy at 50 C and 1 atm pressure? (a)1.63 liters(c) 0.75 liters (b) 3.0 liters(d) 1.0 liter
Copyright Kaplan AEC Education, 2008 PROBLEM #5 The molarity of a 20 weight percent NaCl solution which has a density of 1.15 g/ml is most nearly (a) 0.34(b) 0.39(c) 7.86(d) 3.93
DYNAMICS
PROBLEM #1 Projectile problem: A projectile is launched with an initial speed of v 0 =100 ft/s at =30 ° to the horizontal, what is the horizontal distance, L, covered by the projectile when it lands again?
PROBLEM #2 A truck of weight W = 4000 lbf moves down a =10° incline at an initial speed of u 0 = 20 ft/s. A constant braking force of F brk =1200 lbf is experienced by the truck from a time, t = 0. What is the distance covered by the truck before it stops from the time that the braking force is applied?
PROBLEM #3 Find the tension, T, in the string and the angular acceleration, , if at the position shown the sphere of mass, m= 10 kg, has a tangential velocity of v 0 =4 m/s. R = 0.6 m, and 0 =30 .
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ELECTRICITY AND MAGNETISM
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ENGINEERING ECONOMICS
Copyright Kaplan AEC Education, 2008 An appliance store advertises that a refrigerator can be purchased for $900 cash, or no money down and 24 equal monthly payments of $40. If you paid for the refrigerator with the 24 monthly payment plan, the effective yearly interest rate on your purchase is closest to (a)5.5% (b)5.8% (c)6.2% (d)6.5% Time Value of Money
Copyright Kaplan AEC Education, 2008 An appliance store advertises that a refrigerator can be purchased for $900 cash, or no money down and 24 equal monthly payments of $40. If you paid for the refrigerator with the 24 monthly payment plan, the effective yearly interest rate on your purchase is closest to (a)5.5% (b)5.8% (c)6.2% (d)6.5% PROBLEM #1
Copyright Kaplan AEC Education, 2008 PROBLEM #2 A company is considering purchasing a new machine for $650,000 that will increase the firm’s net income by $150,000 per year over the next 5 years. If the company wishes to obtain a 15% return on its investment, the minimum salvage value of the machine at the end of the 5-year useful life should be closest to (a)$275,000 (b)$295,000 (c)$315,000 (d)$335,000
Copyright Kaplan AEC Education, 2008 PROBLEM #3 A company is considering two mutually exclusive alternative projects to enhance its production facility. The respective financial estimates for each project are as follows Project AProject B Initial Cost75,000105,000 Annual Savings16,000 24,000 Salvage Value 9,000 0 If the useful life of Project A is 4 years, with a MARR of 15%, the useful life in years of Project B that makes both projects equally desirable is most nearly (a)4 (b)5 (c)6 (d)7
Copyright Kaplan AEC Education, 2008 PROBLEM #4 A company is considering two alternative forklifts with equal useful lives and the following characteristics AB Initial Cost25,00032,000 Total Annual Costs Given an interest rate of 10%, the service life in years at which both machines have the same equivalent uniform annual cost (EUAC) is most nearly (a)5 (b)7 (c)9 (d)11
Copyright Kaplan AEC Education, 2008 PROBLEM #5 A compact car costs approximately $21,000 today. If a comparable car cost $15,000 ten years ago, the average annual inflation in compact car prices over the past ten years is closest to (a)2.6% (b)3.0% (c)3.4% (d)3.8%
ETHICS
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HYDRAULICS
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THERMODYNAMICS
Copyright Kaplan AEC Education, 2008 PROBLEM #1
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Copyright Kaplan AEC Education, 2008 PROBLEM #3
Copyright Kaplan AEC Education, 2008 PROBLEM #4
Copyright Kaplan AEC Education, 2008 PROBLEM #5
MATHEMATICS
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MECHANICS OF MATERIALS “STRENGTH”
Copyright Kaplan AEC Education, 2008 PROBLEM #1
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MECHANICS OF MATERIALS “PROPERTIES”
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Copyright Kaplan AEC Education, 2008 PROBLEM #5
STATICS
Copyright Kaplan AEC Education, 2008 PROBLEM #1
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Copyright Kaplan AEC Education, 2008 PROBLEM #3
Copyright Kaplan AEC Education, 2008 PROBLEM #4
Copyright Kaplan AEC Education, 2008 PROBLEM #5
PROBABILITY & STATISTICS
Copyright Kaplan AEC Education, 2008 PROBLEM #1
Copyright Kaplan AEC Education, 2008 PROBLEM #2
Copyright Kaplan AEC Education, 2008 PROBLEM #3
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Copyright Kaplan AEC Education, 2008 PROBLEM #5