221. Which of the following is a mineral ?
A. basalt
B. granite
C. quartz
D. syenite

222. Gypsum is a_________________?
A. mechanically formed sedimentary rock
B. igneous rock
C. chemically precipitated sedimentary rock
D. metamorphic rock

223. Which of the following is a rock ?
A. quartz
B. mica
C. gypsum
D. none of the above

224. A heavy stone is suitable for________________?
A. arches
B. rubble masonry
C. roads
D. retaining walls

225. Slate is formed by metamorphic action on______________?
A. shale
B. lime stone
C. sand stone
D. granite

226. Which of the following has more fire resisting characteristics ?
A. marble
B. lime stone
C. compact sand stone
D. granite

227. Quality control is aimed at__________?
A. Maintaining the desired quality
B. Exceeding the desired quality
C. Continuously improving the quality
D. Following the quality

228. The predominant constituent which is responsible for strength in granite is_____________?
A. quartz
B. feldspar
C. mica
D. none of the above

229. Jumper is a tool used for_______________?
A. testing of stones
B. quarrying of stones
C. dressing of stones
D. none of the above

230. A good building stone should not absorb water more than_____________?
A. 5%
B. 10%
C. 15%
D. 20%

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