500 Best Building Materials MCQ
Q81). Pick up the correct statement from the following: Method of sawing timber
a).tangentially to annual rings, is known as tangential method.
b).in four quarters such that each board cuts annual rings at angles not less than 45°, is known as quarter sawing method.
c).cut out of quarter logs, parallel to the medullary rays and perpendicular to annual rings, is known as radial sawing.
d).all the above.
Correct Answer:
all the above.
Explanation:
Q82). Clay and silt content in a good brick earth must be at least
a).0.5
b).0.4
c).0.3
d).0.25
Correct Answer:
0.5
Explanation:
Q83). Bessemer process is used for the manufacture of
a).Pig iron
b).cast iron
c).Wrought iron
d).Steel.
Correct Answer:
Steel.
Explanation:
Q84). The portion of the brick without a triangular corner equal to half the width and half the length, is called
a).closer
b).queen closer
c).king closer
d).squint brick.
Correct Answer:
king closer
Explanation:
Q85). The standard size of masonry bricks, is
a).18 cm x 8 cm x 8 cm
b).19 cm x 9 cm x 9 cm
c).20 cm x 10 cm x 10 cm
d).21 cm x 11 cm x 11 cm
Correct Answer:
19 cm x 9 cm x 9 cm
Explanation:
Q86). Which one of the following is an air binding material ?
a).Gypsum
b).Acid-resistant cement
c).Quick lime
d).All of these.
Correct Answer:
All of these.
Explanation:
Q87). A good quality stone absorbs water less than
a).0.05
b).0.1
c).0.15
d).0.2
Correct Answer:
0.05
Explanation:
Q88). Pick up the correct statement from the following:
a).Alexander Parkes, a Scottish chemist prepared a hard material by mixing camphor and alcohol with nitro cellulose and called it, as
b).Dr. L. Bakeland, a Belgian scientist prepared a product known as Bakelite
c).Pollark, an Austrian scientist prepared a substance from urea and formaldehyde and called it
d).All the above.
Correct Answer:
All the above.
Explanation: