Download Civil Engineering Exam: Higher Certificate in Engineering - Construction, Summer 2006 and more Exams Material Engineering in PDF only on Docsity!
Cork Institute of Technology
Higher Certificate in Engineering in Civil Engineering - Stage 1
(NFQ – Level 6)
Summer 2006
Construction
(Time: 3 Hours)
Instructions Answer four questions out of six. Use squared paper for sketches and enter your name & question no. at top of each. Quality and clarity of sketches are important. All questions carry equal marks.
Examiners: Mr. P. Murray Mr. P. Anthony Mr. J. Murphy
Q1. At an approximate scale of 1:10, sketch and fully annotate three of the following ground floor construction systems, also indicating clearly, the detailing of the junction of floor construction with external cavity wall and including insulation + dampproofing: GROUND SUPPORTED FLOOR SLAB (8 marks) SUSPENDED IN-SITU GROUND FLOOR SLAB (8 marks) SUSPENDED PRECAST GROUND FLOOR SLAB (9 marks) SUSPENDED TIMBER GROUND FLOOR (8 marks)
Q2. (a) In relation to lintel construction: (1) What does the term composite mean? (3 marks) (2) What are the elements normally used in a composite lintel? (3 marks) (3) How do they achieve structural capability? (3 marks) (4) What limitation does a composite lintel impose on construction elements (3 marks) in its vicinity?
(b) At an approximate scale of 1:5, sketch and fully annotate a section through a composite lintel. Include window frame and all other elements needed in its construction. (13 marks)
Q3. (a) Explain briefly, why ventilation is required beneath: (1) a suspended timber ground floor (4 marks) (2) a suspended solid ground floor (4 marks) (b) (1) What minimum clear ventilation is required under these floors? (3 marks) (2) Using standard 225mmx75mm vent units, each with a ventilation capacity of 5400 sq. mms., calculate the number of vents required for a building with a plan size of 9m x 7m. (6 marks) (c) Explain briefly, why ventilation may be required through a timber roof. (4 marks) In a flat timber roof, how would you alter the construction to remove the need for ventilation? (4 marks)
Q4. (a) In relation to upper timber floor construction, show in sketch form, the elements of a trimmed ope, their fixing/support and their structural relationship to each other (the sequence and distribution of loads). (10 marks) (b) At an approximate scale of 1:5, sketch and fully annotate a section through two full steps of a 900mm wide timber staircase. (9 marks) (c) In relation to the requirements for staircase design: (1) What is the maximum number of rises in any one flight? (2 marks) (2) What is the optimum rise in a domestic stairs? (2 marks) (3) What is the optimum going in a domestic stairs? (2 marks)
Q5. (a) Sketch to an approximate scale of 1:5 and fully annotate a parapet wall detail, showing the complete parapet and the junction of a cold deck flat roof with it, including attention to ventilation and prevention of water penetration. (17 marks) (b) Explain the process of preventing water penetration throughout this connection.(8 marks)
Q6. (a) Sketch to an approximate scale of 1:50, a section through the structure of a traditional ‘cut pitched roof’ and identify all its components. Also, indicate the distribution of loads within the structure of the roof. No roof finishes, ceilings or insulation are required. (12 marks) (b) Sketch to an approximate scale of 1:5 and fully annotate, the eaves detail for a pitched roof, with concrete tile finish, and horizontal soffit. (13 marks)
