Cochin University of Science and Techology (CUST) 2007 B.Tech Fire and Safety Engineering IVSemester (Supplementary) ,, SE 403 Fire Engineering - Question Paper
BTS (C) IV-(S)-07-003 (I)
B. Tech Degree IV Semester (Special Supplementary)
Examination, March 2007
SEW FIRE ENGINEERING I (1999 Admissions Onwards)
3W: 3 Hours Maximum Mirks: 100
L (a) What ts combustion? Explain different tones * combustion. (10)
(b) Differentiate between premised flame and diffusion flame. (10)
OR
El. (a) Explain flammability limits. What are (heir significance? (8)
(b) Explain tbe following;
(i) Smouldering combustion (li) Explosion
(iii) Flasbover. (3 x 4 12)
Itl () Explain tbe hazards due to -
(i) moke
(ii) Exposure to heat and high temperature (2 x 5 10) (b) Explain the causes of electncal fires. How human beings can cause fire wtoeti
static charges are formed? (***)
OR
IV. (a) Explainfbetoxiccfrectsoftbefollowiflg
(i) Carbon Monoxide (ti) Sulphur Dioxide (tU) Nitrogen Dioxide
(iv) Carbon Dioxide. (4x3-12) (b) Explain different types of safe electrical equipments used in flammable atmosphere (8)
V. Discuss about the fire safety requirements while storing flammable liquids in tanks (20)
OR
VI (a) Explain the general guideline* to be followed while grounding and bonding (10)
(b) Write short notes on the following'
(t) Fire protection in pious and factories
(Ii) Means of egrets (2 x 5 10)
VII. (a) What are the different types of smoke detectors? Explain the woriing principle of
photoelectric light obscuration smoke detector. (12)
(b) Compared* advantage oftbcrmirtort>pebe*ldeic<too over ftaible In* type (8)
OR
VIII. (a) Explain the basic principle based on which different types of heat detectors are
manufactured Explain the woriuag principle of rale compensated heat detector. (12)
(b) What are the different types of flame defectors? Diacim about the surtabitity of
each type of flame detector for detecting Are. (8)
IX. (a) Explain briefly about ihe different parts of an automatic sprinkler system (10) (b) With a neat sketch, txpbin the operating principle of gas cartridge type IXP portable
extinguisher. (10)
OR
X. (a) What are the different types of sprinkler* available? Explain the function and parts
of quaruoid bulb type sprmUer. (10)
(b) Explain briefly the selection and distribution of portabte extinguisher for a
particular application (10)
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