500 Best Building Materials MCQ
Q129). Pick up the incorrect statement from the following:
a).Plastics are chemical resistant
b).Plastics are durable
c).Plastics are ductile
d).Plastics are excellent electric insulators.
Correct Answer:
Plastics are ductile
Explanation:
Q130). Pick up correct statement from the following:
a).Fibre boards are used for thermal and acoustic control
b).Fibre boards are used for light weight standing members
c).Fibre boards are obtained by impregnating a resin product on fibres
d).all the above.
Correct Answer:
all the above.
Explanation:
Q131). Quartzite, a metamorphic stone is
a).hard
b).brittle
c).crystalline
d).all the above.
Correct Answer:
all the above.
Explanation:
Q132). Pick up the correct statement from the following:
a).Plastics have generally low melting point
b).The coefficient of thermal expansion of plastics is about three times than that of steel
c).The acoustical boards prepared by impregnating fibre-glass with phenolic resins has absorption coefficient of about 0.67
d).All the above.
Correct Answer:
All the above.
Explanation:
Q133). Dextrin is
a).animal glue
b).starch glue
c).albumin glue
d).rubber based adhesive
Correct Answer:
rubber based adhesive
Explanation:
Q134). Formula for quick lime, is
a).CaCO
b).CaO
c).COCO
d).none to these.
Correct Answer:
CaO
Explanation:
Q135). For the manufacture of stainless steel, steel is mixed with
a).chromium
b).nickel
c).tungsten
d).none of these.
Correct Answer:
chromium
Explanation:
Q136). Stones used for ornamental work must be
a).soft
b).hard
c).light
d).heavy.
Correct Answer:
soft
Explanation: