Basic Mechanical Engineering 2nd Edition PRAVIN KUMAR - Solutions

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Your colleague is excited about your good fortune (Problem 3.1) at work, but she only got the promise of a watch or $$300$ cash. You convince her that she will be better in the long run by just taking the money and trying to nd an account earning 12% per year to invest her money.How much will she
What is the future equivalent of $$1,000$ invested at 8% simple interest for 3 years?
What lump-sum amount of interest will be paid on a $$10,000$ loan that was made on 1 June 2011 and repaid on 1 September 2015, with ordinary simple interest at 10% per year?
You borrow $$495$ from your brother-in-law to buy an iPad and agree to pay it back when you get your tax refund (6 months away). Because you are family, but not trusted, you are being charged simple interest at the rate of 6% per month. How much will you owe after 6 months?
You invest $$17,000$ in a mutual fund recommended by a fellow Dallas Mavericks sports fan. The fund is known to have \highs and lows," but your friend virtually guarantees you will beat the market by 2% and earn 12% per year in the \long run." How much should your investment be worth in 20 years?
Aaron loans Victoria $$10,000$ with interest compounded at a rate of 8% annually. How much will Victoria owe Aaron if she repays the entire loan at the end of five years?
Approximately how long does it take to quadruple an investment of $$1,000$ when the interest rate is 15% per year?
Suppose you make 15 equal annual deposits of $$1,000$ each into a bank account paying 5% interest per year. The first deposit will be made one year from today. How much money can be withdrawn from this bank account immediately after the 15th deposit?
Jim makes a deposit of $\$ 12,000$ in a bank account. The deposit is to earn interest annually at the rate of $9 \%$ percent for seven years.(a) How much will Jim have on deposit at the end of seven years?(b) Assuming the deposit earned a $9 \%$ rate of interest compounded quarterly, how much would
John is considering the purchase of a lot. He can buy the lot today and expects the price to rise to $\$ 15,000$ at the end of 10 years. He believes that he should earn an investment yield of $10 \%$ annually on this investment. The asking price for the lot is $\$ 7,000$. Should he buy it? What is
An investor can make an investment in a real estate development and receive an expected cash return of $\$ 45,000$ after six years. Based on a careful study of other investment alternatives, she believes that an $18 \%$ annual return compounded quarterly is a reasonable return to earn on this
A loan of $\$ 50,000$ is due 10 years from today. The borrower wants to make annual payments at the end of each year into a sinking fund that will earn interest at an annual rate of 10 percent. What will the annual payments have to be?
The Dallas Development Corporation is considering the purchase of an apartment project for $\$ 100,000$. They estimate that they will receive $\$ 15,000$ at the end of each year for the next 10 years. At the end of the 10th year, the apartment project will be worth nothing. If Dallas purchases the
Consider an investment that will pay $\$ 680$ per month for the next 15 years and will be worth $\$ 28,000$ at the end of that time. How much is this investment worth to you today at a $5.25 \%$ discount rate?
You currently owe $\$ 18,000$ on a car loan at $9.5 \%$ interest. If you make monthly payments of $\$ 576.59$ per month, how long will it take you to fully repay the loan?
You have just borrowed $\$ 10,000$ and will be required to make monthly payments of $\$ 227.53$ for the next five years in order to fully repay the loan. What is the implicit interest rate on this loan?
Your uncle has given you a bond that will pay $\$ 500$ at the end of each year forever into the future. If the market yield on this bond is $8.25 \%$, how much is it worth today?
What monthly payment would a college senior make to pay off a used car loan of $\$ 2,000$ at $12 \%$ by the end of the year?
You are considering financing a new car which cost $\$ 51,300$ with an amortized loan. The nominal rate is $2.9 \%$ per annum, the term of the loan is 6 years, and you will make monthly payments. How much will each payment be?
You want to retire in 30 years. You are starting to invest in a growth income fund that promises an ambitious rate of $15 \%$. You can put in $\$ 200$ per month. How much will you have in 30 years?
Suppose that you make an investment that will cost $\$ 1,000$ and will pay you interest of $\$ 100$ per year for the next 20 years. Then at the end of the 20 years, the investment will pay $\$ 1,500$. If you purchase this investment, what is your compound average annual rate of return?
A biologist decided that she wanted to have $\$ 54,267.89$ in her account in 10 years, and she found a bank which compounded monthly at $6 \%$. What are her monthly payments to achieve her goal of $\$ 54,267.89$ ?
How many years will it take for your savings account to accumulate $\$ 1,000,000$ if it pays $4 \%$ interest per annum compounded semiannually and you deposit $\$ 10,000$ every 6 -months at the end of the 6 month period?
A project has a first cost of $\$ 16,999$ with a life of 10 years and a salvage value of $\$ 2,500$. If the MARR is $12 \%$ and provides benefits of about $\$ 2,750$ annually, what is the $\mathrm{PW}$ of the project?
You are faced with making a decision on a large capital investment proposal. The capital investment amount is $\$ 640,000$. Estimated annual revenue at the end of each year in the eight-year study period is $\$ 180,000$. Estimated annual yearend expenses are $\$ 42,000$, starting in year 1. These
Evaluate machine XYZ on the basis of the PW method when the MARR is $12 \%$ per year. Pertinent cost data are as follows: Investment cost Useful life Market value Annual operating cost Overhaul cost - EOY 5 Overhaul cost - EOY 10 $13,000 15 years $3,000 $100 $200 $550
A testing laboratory requires a new DRIE machine with a cost of $\$ 499,000$, and in this high-tech industry the machine will have a salvage value of $\$ 40,000$ at the end of 10 years of service. Assuming a MARR of $18 \%$, how much must be earned on an equivalent annual basis so the firm recovers
A material processing oven has a first cost of $\$ 16,999$ with a life of 10 years and a salvage value of $\$ 2,500$. The corporate MARR is $12 \%$. If the system provides about $\$ 2,750$ annually, what is the PW of the project if the system is replaced by an identical system at the end of 10
A used conveyor dealer presents an investment package that requires you to pay $\$ 189.99$ a month with $\$ 1,499.00$ down and a nominal annual interest rate of $17 \%$. What is the actual cost of the system? Assume monthly compounding.
A capital investment project involves the purchase of a 3-D soldering station for $\$ 15,000$, producing an annual net benefit of $\$ 2,250$. The system has an 8-year useful life with a salvage value of $\$ 6,200$. What is the present worth of the project?
A tattoo shop has the following revenue stream over a 5 -year period: $\$ 9,000, \$ 17,000, \$ 19,000, \$ 11,000$, and $\$ 22,000$. What is the EUAW of this business (assume $\mathrm{i}=12 \%$ ).
A dicing system has a first cost of $\$ 68,000$ with a life of 8 years and a salvage value of probably not more than $\$ 9,000$. The corporate MARR is $14 \%$. If the system has a maintenance cost of about $\$ 10,000$ annually, what is the EUAC of the system?
An observatory has a telescope that requires an initial investment of $\$ 25,000$. A benefactor will provide a $\$ 7,500$ gift every 5 years as long as the university makes the telescope available to the public. If the university MARR is $8 \%$, what is the EUAW of this project?
What is the maximum price an investor will pay for a bond with a face value of $\$ 5,000$ and a coupon rate of $12 \%$, paid annually? Assume the investor seeks a yield of $10 \%$ and the bond will mature in 10 years.
An investor purchased $\$ 20,000$ of U.S. Treasury bonds at face value. These bonds have a 25 -year maturity period, and they pay $1.25 \%$ interest every three months. Unfortunately, interest rates for similar securities have since risen to a $6 \%$ APR because of an improving economy, and the
The current market interest rate on U-Store City Investment Building bonds is $10 \%$, compounded semiannually. The original bonds are sold as $\$ 1,000,12 \%$ interest rate notes. A batch of bonds is available that will mature in 8 years. What is today's market price for a $\$ 1,000$ face value
Ajax Savings Bank has certificate of deposit notes with a face value of $\$ 10,000$ with a $10 \%$ interest rate compounded daily. What is the current market price of the $\mathrm{CD}$ if the term of the CD is 3 years?
A US Treasury bond has a maturity of 10 years and a face value of $\$ 10,000$ with a $5 \%$ coupon rate. Trading of the bonds has been pretty active, and the current quoted price is $\$ 96,500$. What yield can an investors expect if they buy these bonds and hold them full-term?
A new high-definition television costing $\$ 2,999$ is on a rent-to-own plan and is to be paid in 18 end-of-month payments (starting one month from now). The monthly payments are determined as follows:What is the monthly payment for this system? What are the nominal and effective annual interest
It is said that "the higher the MARR, the higher the price that a company should be willing to pay for equipment that reduces annual operating expenses." Explain the reasoning behind this statement.
A homeowner found a preferred savings account book in the wall of a home he was remodelling. He went to the bank and discovered that the account was 25 years old and had $\$ 425,801$ in the bank! The original investment was $\$ 20,000$ ? What was the effective interest rate of the preferred account?
What is the rate of return for a $\$ 14,000,20$-year investment that provides a payout of $\$ 1,000$ a year?
A neurosurgery resident wants to double her money in the time it takes her to complete a residency program (7 years) so she can buy a new car with cash upon graduation. What interest rate is needed to turn a $\$ 10,000$ investment into $\$ 20,000$.
What is the payback period for the project described below? Machine investment MARR Annual benefit $24,999 10% $6,500 Annual maintenance $2,000 Life 10 years Salvage value $2,000
What is the payback period for the project described in Problem 4.21 if the maintenance increases by $\$ 500 /$ year (after the first year)?Data from in problem 4.21What is the payback period for the project described below? Machine investment MARR Annual benefit $24,999 10% $6,500 Annual
What is the payback period for the project described below? Machine investment $24,999 MARR 18% Annual benefit $5,000 Annual maintenance Life Salvage value $2,500 7 years $1,000
The important property of a material in all metal forming process is:(a) Elasticity (b) Plasticity(c) Ductility (d) Brittleness
Which of the following material cannot be forged:(a) Wrought iron (b) Cast iron(c) Mild steel (d) High carbon steel
Mechanical properties of the metal improve in hot working due to:(a) Recovery of grains(b) Recrystallization(c) Grain growth(d) Refinement of grain size
The increase in hardness due to cold working is called:(a) Cold hardening (b) Hot hardening(c) Strain hardening (d) Age hardening
The extruded product moves in the backward direction opposite to that of the deforming force in:(a) Forward extrusion(b) Die extrusion(c) Backward extrusion(d) Wire drawing
Hot working operations are carried at:(a) Recrystallization temperature(b) Below crystallization temperature(c) Above crystallization temperature(d) Above room temperature
Seamless tubes are made by:(a) Piercing (b) Extrusion(c) Rolling (d) Plug rolling
The operation of removing the burr or flash from the forged parts in drop forging is known as:(a) Lancing (b) Coining(c) Trimming (d) Shot peening
In four high rolls mill, the bigger roll is called:(a) Guide rolls (b) Back up rolls(c) Main rolls (d) Support rolls
Large size bolt heads are made by:(a) Swaging (b) Roll forging(c) Tumbling (d) Upset forging
Symmetrical hollow parts of circular cross section are made by hot:(a) Forging (b) Extrusion(c) Piercing (d) Spinning
In drawing operation, the metal flows due to:(a) Ductility (b) Work hardening(c) Plasticity (d) Shearing
Hemming is the operation:(a) In which the edges of the sheet are turned over to provide stiffness and a smooth edge.(b) Of producing contours in sheet metal and bending previously roll formed sections.(c) Employed to expand a tubular or cylindrical part.(d) None of these
If the rate of energy flow for forming is high, it is known as _________.
_________ is defined as process for the making of cup shaped parts from flat sheet metal blanks.
Punching is a process of producing _________ in a flat sheet.
Powder metallurgy is a process of making components from _________.
When metal is deformed between recrystallization temperature and melting point of the metal, it is called _________.
When metal is deformed between room temperature and recrystallization temperature, it is called _________.
_________ is a process to produce a small diameter wire from billet by applying tensile force.
What do you mean by mechanical working?Differentiate between hot working and cold working.
What is forging? Explain different forging process.
Explain the various forging defects and its remedies.
Explain the rolling process and the defects occurred in rolling.
Differentiate between backward and forward extrusions.
Write notes on high energy rate forming.
Explain the process of tube drawing.
What is the basic difference between bar drawing and wire drawing?
What do you mean by stretch forming?
Write the name and applications of different hand tools used in sheet metals.
What are the various sheet metal operations?
Differentiate between punching and blanking.
Explain the process of deep drawing.
Explain the process to manufacture internal and external threads using forming process.
What is powder metallurgy? Explain the various steps used in powder metallurgy.
Explain the methods to produce metal powders.
Explain the advantages, disadvantages, and applications of powder metallurgy.
What do you mean by smithy?
Write short notes on: (i) Hearth, (ii) Anvil,(iii) Set hammers, (iv) Swage blocks, (v) Fullers,(vi) Flatters, and (vii) Swages.
A Manufacturing system consists of:(a) All the resources required to transform the material from its raw form to finished form.(b) Purchasing and selling activities of products(c) Marketing systems(d) All of the above
The resources involved in this transformation process may be:(a) Man and materials,(b) Money and machine,(c) Management and energy,(d) All of the above
In manufacturing systems, the term workstation refers to a location in the factory where:(a) Services are provided to customer(b) Enquiry if provided(c) Some well-defined operation is accomplished by men or/and machines(d) All of the above
A computer system is required to:(a) control the functions of the machines(b) participate in the overall coordination and management of the manufacturing system(c) Both (a) and (b)(d) None of these
The objectives of a computer system is to:(a) Give instructions to workers and transform part programs to machine language(b) Control material handling system, schedule production, monitor safety measures(c) Control the quality of job to be produced.(d) All of the above
In a computer integrated manufacturing system, all the manufacturing and business functions are integrated through:(a) Computer networking(b) Manual network(c) Electrical network(d) None of these
CAD is concerned with the use of the computer to support:(a) The design engineering functions and CAM is concerned with the computer to support manufacturing engineering functions.(b) Marketing network(c) Supplier network(d) All of the above
Geometric modeling is concerned with:(a) Mathematical description of the geometry of an object.(b) The image is displayed on graphics terminal to perform certain operations on the model.(c) Both (a) and (b)(d) None of these
Numerical control can be defined as a form of programmable automation in which the machining process is controlled by:(a) Numbers(b) Letters and symbols(c) Both (a) and (b)(d) None of these
An operational NC system consists of:(a) Program of instruction.(b) Controller unit(c) Machine tools(d) All of the above
What is manufacturing system? Explain it.
Write notes on computer integrated manufacturing system and CAD/CAM.
Explain all the four phases of computer aided design.
Explain the activities involved in computeraided manufacturing.
What is NC machine? Explain its applications and limitations.

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Basic Mechanical Engineering 2nd Edition PRAVIN KUMAR - Solutions

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