Question Paper: Construction Engineering Question Paper - May 2015 - Civil Engineering (Semester 8) - Mumbai University (MU)
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Construction Engineering - May 2015

MU Civil Engineering (Semester 8)

Total marks: --
Total time: --
INSTRUCTIONS
(1) Assume appropriate data and state your reasons
(2) Marks are given to the right of every question
(3) Draw neat diagrams wherever necessary
1 (a) Describe the various types of tunneling machines which have been developed in recent years. Describe the operation of one of these machines. Compare the use of moles with conventional tunneling method. 10 marks

1 (b) Classify cranes on the basis of broad construction features. Explain the application of each types and its method of operation. 10 marks

2 (a) Determine owning and operating cost per hour for two equipments from the following data: Assume other suitable data,
Purchase Cost = Rs. 30 lacs (first equipment purchased 5 years ago and second today.)
Operating factor =0.70 for old and 0.85 for new equipment
Useful Life =10 years(2000 hours/ year)
Engine capacity=60 HP
Salvage value=10% of purchase cost
Investment cost=12% average annual investment.
Lubrication cost =20% of fuel cost.
10 marks

2 (b) Enlist commonly used soil compacting equipments in construction industry indicating suitability? Explain any one with neat sketch. 10 marks

3 (a) What are different types of crushers used for production of aggregate? Explain any one with neat sketch. 10 marks

3 (b) Enlist different types of drilling equipments. Explain in detail any one with neat sketch. 10 marks

4 (a) What is meant by ground improvement? Discuss the ground improvement technique by sand Drain with a neat sketch. 10 marks

4 (b) Enlist the different types of pile driving hammers. Explain in detail Double Acting Hammer with neat sketch 10 marks

5 (a) Enlist the various modern forms for concrete construction. Explain in details the slip form with sketch. 10 marks

5 (b) Explain the different methods forms for concrete construction. Explain in details the slip form with sketch. 10 marks

6 (a) What is liner plates? Sketch the types if liner plates used in tunnel work and state the advantages of using liner plates. 10 marks

6 (b) Define mass concrete? What are the problems generally faced during mass concreting> what precaution will you take for mass concreting? Explain. 10 marks

Write notes on following (any four)

7 (a) Types of cladding 10 marks

7 (b) Use or geo- textiles in soil stabilization. 10 marks

7 (c) Stemming. 10 marks

7 (d) Balancing of equipment. 10 marks

7 (e) Shaft in tunnel. 10 marks

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