Strength of Materials Mcqs

Q.  Two coplanar couples having equal and op-posite moments_________________?

a. balance each other
b. produce a couple and an unbalanced force
c. are equivalent
d. produce a moment of couple
e. can not balance each other


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  The reduction in project time normally results in_______________?
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MCQs:  A tractor whose weight is 20 tonnes has a drawbar pull of 2500 kg, when operated on a level road having a rolling resistence of 30 kg per tonne. If this tractor is operated on a level road having a rolling resistance of 40 kg per tonne, then the drawbar pull of the tractor will________________?
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MCQs:  Which of the following excavators is most suitable for digging under water?
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MCQs:  For which of the following materials, the output of power shovels for a fixed shovel size will be maximum_______________?
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MCQs:  Consider the following statements for a power shovel? (i) Output can be increased by reducing the angle of swing for a given depth of cut (ii) For a given angle of swing, output will be maximum at optimum depth of cut (iii) Output can be increased by keeping the depth of cut less than optimum depth (iv) Output can be increased by increasing the size of shovel select the correct statements?
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MCQs:  If the output of a dragline for 90° angle of swing at optimum depth of cut is X, then the output for 120° angle of swing at 120 % of optimum depth of cut will be_________________?
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MCQs:  A machine is purchased for Rs. 10,000,00/- and has an estimated life of 10 years. The salvage value at the end of 10 years is Rs. 1,50,000/-. The book value of the machine at the end of 5 years using general straight line method of evaluation of depreciation is__________________?
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MCQs:  If the excavation of earth is done manually then it costs Rs. 10 per cum. A machine can excavate at a fixed cost of Rs. 4000 plus a variable cost of Rs. 2 per cum. The quantity of earth for which the cost of excavation by machine will be equal to the cost of manual excavation is_________________?
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MCQs:  Rolling resistance of a wheel depends upon_____________? (i) Vehicle load (ii) Grade (iii) Ground select the correct statements?
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MCQs:  If the gross vehicle weight of a truck is 30 t and rolling resistance is 30 kg/tonne, then the tractive effort required to keep the truck moving at a uniform speed is__________________?
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MCQs:  A wheeled tractor hauling unit is working on firm earth. The total loaded weight distribution of this unit is: Drive wheels : 25000 kg Scraper wheels : 10000 kg If the coefficient of traction for wheeled tractor on firm earth is 0.5, the rimpull which this tractor can exert without slipping is_______________?
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MCQs:  An earth moving equipment costs Rs. 5,00,000/- and has an estimated life of 10 years and a salvage value of Rs. 50,000/-.What uniform annual amount must be set aside at the end of each of the 10 years for replacement if the interest rate is 8% per annum and if the sinking fund factor at 8% per annum interest rate for 10 years is 0.069 ?
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MCQs:  The probability of completion of any activity within its expected time is_________________?
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MCQs:  If the expected time for completion of a project is 10 days with a standard deviation of 2 days, the expected time of completion of the project with 99.9% probability is________________?
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MCQs:  A tractor shovel has a purchase price of Rs. 4.7 lacs and could save the organization an amount of rupees one lac per year on operating costs. The salvage value after the amortization period is 10% of the purchase price. The capital recovery period will be________________?
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MCQs:  In the critical path method of construction planning, Free Float can be_____________? Consider the following statements ? 1. greater than Total Float. 2. greater than Independent Float 3. equal to Total Float. 4. less than Independent Float. Of these statements
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