MCQ
281. The specific gravity of stone should not, in any case, be less than- [MES-18]
1
1.5
2
2.5
282. The portion of bricks at across the width in half is called- [MOCA-19]
half sprit
half closer
half bed
half bat
283. In general FM of Sylhet sand is- [BGFCL-17]
1.8
2.5
1.5
2.8
284. Laterite is chemically classified as [MES-18]
calcareous rock
argillaceous rock
silicious rock
metamorphic rock
285. The chief ingredient of paint is [BGFCL-17]
alcohol
drier
oil
pigment
286. A good building stone is one which does not absorb more than....of its weight of water after one day's immersion- [BREB-15, MES-18]
5%
10%
15%
25%
287. What are the two main elements of Portland cement? [BREB-17, HED-19]
Lime & Silica
Lime & Iron
Lime & Alumina
Silica & Copper
288. The base material for distemper is [MES-18]
chalk
lime
clay
lime putty
289. Geologically marble is known as- [PPA-19]
Sedimentary rock
Igneous rock
Metamorphic rock
Stratified rock
290. Gneiss is chemically classified as- [MES-18]
calcareous rock
argillaceous rock
silicious rock
none of these
291. The volume of cement in one bag is [MES-16]
1.00 cft
1.50 cft
1.25 cft
1.15 cft
292. How many types of manufacture of fire bricks? [BREB-17]
3
4
2
5
293. Generally used fine aggregate in our country-
clay
sand
stone
silt
294. Which of the following is an example of argillaceous rock? [MES-18]
kaolin
slate
laterite
all of these
295. Marble is an example of- [MES-18]
aqueous rocks
metamorphic rock
sedimentary rocks
igneous rocks
296. Which of the following is an example of silicious rock? [MES-18]
granite
gneiss
quartzite
all of these
297. The compressive strength of granite is-(MES-18]
50 to 70 MN/m²
70 to 130 MN/m²
130/to 170 MN/m²
170 to 200 MN/m²
298. Generally....... is used in varnish. [BREB-17]
spirit
water
transformer oil
none of these
299. The maximum percentage of chemical ingredient of cement is that of- [PPA-19]
magnesium
iron oxide
aluminium
lime
300. The weight of cement in one bag is- [MES-18]
45 kg
50 kg
60 kg
65 kg