A bulldozer operates on a 30 m stretch and moves at 2.4 kmph when pushing the earth, and returns empty at 6 kmph. The time lost in loading and shifting gears per trip is 18 seconds. Its operating factor is nearly 50 min/hour. What is the number of trips made per hour?
Which of the following advantages accrue to the use of Articulate Dump Trucks (ADT) over Rigid Dump Trucks (RDT) for construction and earth moving work?
1. Higher maneuverability
2. Lowturning radius
3. Lower fleet costs
Select the correct answer using the code given befow.
Codes :
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Consider the following statements: A mixer designated 400 NT indicates that
1. it is non-tilting type mixer
2. its nominal mix batch capacity is 400 litres
3. it requires 400 revolutions for proper mixing of the batch using one bag of cement
Which of the statements given above are correct?
Match List-I with List-II and select the correct answer using the code given below the lists:
Codes:
Which of the following are the advantages of crawler mounted bulldozer over wheel mounted bulldozers?
1. Higher travel speed
2. Able to travel over very soft soil
3. Able to travel over very rough surfaces having no haul roads
Select the correct answer using the code given below:
Which of the following earth moving machines has the shorter cycle time?
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
A machine is purchased for ₹10,000,00/-and has an estimate life of 10 years. The salvage value at the end of 10 years is ₹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
An excavator costs ₹ 20,000/- and has an estimated life of 8 years. It has ho salvage value at the end of 8 years. The'book value of the excavator at the end of 3 years using genera! double declining balance methpd is
Match List-I (Material) with List-II (Coefficient of traction for wheeled tractors) and select the correct answer using the codes given below the lists:
Codes:
Match List-l (Indications of terms) with List-ll (Terms) and select the correct answer using the codes given below the lists:
Codes:
The basic action involved in sheep foot rolling is
With the usual notations, sinking fund factor is given by
Match List-I (Crane) with List-ll (Suitable for) and select the correct answer using the code given below the lists:
Code:
For three-dimensional movement of a weight, which one of the following is most suitable?
A scraper is to haul earth from a pit to a fill 0.4 km away, working under average - fixed - time conditions of 2.2 minutes, with an average haul speed of 7 kmph. With operating factor of 0.8, the number of cycles which can effectively be performed per hour is nearly
Consider the following statements:
1. Book value is the unamortized cost of the asset as it still appears on the accounting books of the business.
2. Termination of economic life implies disposal of the equipment.
Which of the statements given above is/are correct?