JNTU
JNTU B.Tech 2018 PRINCIPLES OF CIVIL AND STRUCTURAL ENGINEERING Previous Question Paper (April/May - 2018 - R15)
Part A is compulsory which carries 25 marks. Answer all questions in Part A. Part B consists of 5 Units. Answer any one full question from each unit. Each question carries 10 marks.
Part A
What is the classification of survey based on the nature?
Answer
Based on the nature of the field, surveying is classified into land surveying (which includes topographical, cadastral, and city surveying), marine or hydrographic surveying, and astronomical surveying.
What are different types of traverse? When they are used?
Answer
Traversing is classified into two types: Closed Traverse and Open Traverse. A closed traverse starts and ends at points of known coordinates, used for boundary surveys and large area mapping. An open traverse consists of a series of connected lines that do not return to the starting point, used for surveying long, narrow strips of land like roads, railways, and canals.
List out different methods of levelling.
Answer
Sign in to view the complete answer paper.
What are the uses of contour maps?
Answer
Sign in to view the complete answer paper.
What are soundings and what for they are required?
Answer
Sign in to view the complete answer paper.
What are the salient features of total station survey?
Answer
Sign in to view the complete answer paper.
Name Bogue’s compounds.
Answer
Sign in to view the complete answer paper.
What is the mechanism of bulking of sand?
Answer
Sign in to view the complete answer paper.
State Abram’s law.
Answer
Sign in to view the complete answer paper.
Calculate the maturity value of concrete at 2 days when a M 20 grade mix is cured at 15°C for 12 hours and 8°C for the rest of the period during a day?
Answer
Sign in to view the complete answer paper.
Part B
Distinguish clearly between cumulative and compensating errors.
Answer
Sign in to view the complete answer paper.
Explain different errors in theodolite work and how they can be eliminated.
Answer
Sign in to view the complete answer paper.
What are ‘face left’ and ‘face right’ observations? What is the necessity of taking both observations?
Answer
Sign in to view the complete answer paper.
What are the factors to be considered in deciding the stations of chain survey?
Answer
Sign in to view the complete answer paper.
Explain the different sources of errors in leveling and how they can be eliminated.
Answer
Sign in to view the complete answer paper.
Describe various methods of contouring? Discuss the merits and demerits of each.
Answer
Sign in to view the complete answer paper.
Explain the term ‘contour gradient’ in detail.
Answer
Sign in to view the complete answer paper.
Explain about shore line surveys.
Answer
Sign in to view the complete answer paper.
Briefly explain the angle and distance measurements by total station and their accuracy.
Answer
Sign in to view the complete answer paper.
Explain about sounding methods in hydrographic survey.
Answer
Sign in to view the complete answer paper.
Explain the salient features of total station.
Answer
Sign in to view the complete answer paper.
Explain the factors affecting the properties of fresh concrete.
Answer
Sign in to view the complete answer paper.
Explain about surface vibrators and pin vibrators.
Answer
Sign in to view the complete answer paper.
Explain shape tests on aggregates.
Answer
Sign in to view the complete answer paper.
Explain Vee-Bee test on concrete.
Answer
Sign in to view the complete answer paper.
Explain flexure test of concrete and how the flexural strength is calculated.
Answer
Sign in to view the complete answer paper.
What is durability? What are the factors that contribute to durability of concrete?
Answer
Sign in to view the complete answer paper.
Explain about accelerated curing of concrete.
Answer
Sign in to view the complete answer paper.
Explain gel/space ratio method of estimating strength of concrete.
Answer
Sign in to view the complete answer paper.