Wednesday, September 7, 2016
S.B. Roll No. _____________
Duration : 4 Hrs.
1. Fill in the blanks
a. According to physical classification, granite is a ______ rock
b. A kiln for burning bricks, OVAL in plan is known as _______ kiln.
c. Initial setting time of ordinary cement should not be|_____ 30 minutes.
d. A volatile substance added to the oil paint to make the application easy and smooth is called _____
e. Wood from ______ trees is used for engineering purposes.
State true or false
f. Mica attributes to stone strength.
g. Wooden mould for bricks, should be of sais hem wood.
h. Hydraulic line can set and harden under water.
i. Cement is always measured by weight.
j. Mango is an endogenous tree.
Choose the correct one
k. Lime stone is derived from
i. Calcareous rocks
ii. Siliceous rocks
l. Hoff- man’s kiln is more economical
m. Dry rot is due to
i. Defect in timber
ii. Decay in timber
n. By slaking of time, we get
i. Hydrated lime
ii. Hydraulic lime
o. For rapid hardening cement, initial setting time and final setting time is the same
Note: Attempt any ten questions
a. Define rocks
b. Give the characteristics of a good brick earth.
c. What is the proper way of storing cement?
d. What is dry rot and where does it occur?
e. Give the composition of mild steel
f. Mention the general properties of glass.
g. What are refractory bricks?
h. Give the uses of rapid hardening cement
i. Define preservation of timber.
j. What are ENAMELS?
k. Define ferrous metals.
l. What are the uses of bitumen sheets/ felts?
Note attempt any two questions
a. Describe important tests for lime.
b. Describe intuit and final setting time for cement
a. Describe laminated Board, Block Boards and fibreboards,
b. Name various types of GLASES and give their uses.
a. Explain various methods of slaking lime
b. Draw of FLOW DIAGRAM, showing various stages in the manufacture of portend cement by wet processes.
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