Advanced Construction and Equipments — Summer 2023

Define Pile. State various necessity of pile foundation.

Differentiate between Caisson and Coffer dam.

Classify the piles based on materials and composition. Explain precast concrete piles with its procedure, advantages and disadvantages.

Define coffer dam. State the necessity of coffer dams.

Write short note on Monoliths.

Explain under reamed piles with the help of neat sketch and its construction procedure.

Explain pneumatic caisson with the help of neat sketch, construction procedure, advantages and disadvantages.

Define form work. Discuss the requirements of good formwork.

Prepare the list of various methods of controlling ground water during construction and suggest their suitability for different soil conditions in tabular form.

Demonstrate the formwork for R.C.C. beam and slab floor with neat sketch showing all components.

Explain cement grouting to control ground water in excavations.

State the various uses and advantages of diaphragm walls.

Explain safety measures to be taken before and during demolition of structures.

Discuss the significance of construction machineries.

Describe the factors affecting selection of construction equipments.

Determine the probable cost of owning and operating at 3m3 capacity, diesel engine power shovel given the following details: Engine = 160 HP Crank case capacity = 30 litres Useful life = 6 years Time between oil change = 120 hours Shipping weight = 104 tonnes Factory price of equipment = ₹ 7,00,000 Operating factor = 0.6 Freight charge = ₹ 30/tone Unloading and assemble charge = ₹ 700 Hours used/year = 5500 hours OR1

Define: Depreciation cost, Downtime cost, Operating cost

Differentiate between standard equipment and special equipment.

Compare crawler mounted dozer and wheel mounted dozer.

Estimate the number of dumper required for transportation of 1500 cum of material per day for average lead of 4 km. Following data may be used of the estimation. Theoretical capacity of dumper = 18 cum Actual capacity of dumper = 15 cum Cycle time = 30 minute

Discuss the advantages and disadvantages of trucks.

Enlist the excavating equipments used in construction. Explain dragline with the help of neat sketch, applications, advantages and disadvantages.

List various hoisting equipments. Explain tower crane.

Explain various explosives used for blasting.

Explain centrifugal pump with neat sketch.