MCQ
3801. What is the percentage of silica for 1st class bricks? [MES-16]
55%
65%
75%
50%
3802. The chief ingredient of paint is [BGFCL-17]
alcohol
drier
oil
pigment
3803. In general FM of Sylhet sand is- [BGFCL-17]
1.8
2.5
1.5
2.8
3804. What is the unit weight of cement? [MES-16]
1440 kg/Cum
1620 kg/Cum
1200 kg/Cum
1500 kg/Cum
3805. Vicat's apparatus is used to determine the [MES-16]
initial setting time of cement
final setting time of cement
normal consistency of cement
all of these
3806. When first class brick is sunk 24 hours in water how much water will absorbed of its weight? [MES-16]
1/3
1/6
1/4
1/7
3807. Generally the compressive strength for good bricks is- [MES-16]
100-110 kg/cm²
120-130kg/cm²
140-150 kg/cm²
150-160 kg/cm²
3808. The volume of cement in one bag is [MES-16]
1.00 cft
1.50 cft
1.25 cft
1.15 cft
3809. The percentage of silica in a good brick clay should very from- [BREB-15; MES-16]
20 to 30%
30 to 40%
40 to 50%
50 to 60%
3810. Generally....... is used in varnish. [BREB-17]
spirit
water
transformer oil
none of these
3811. Generally used fine aggregate in our country-
clay
sand
stone
silt
3812. সিমেন্টের গুণাগুণ নির্ণয়ের কয়টি পরীক্ষা করা হয়?[RAJUK-17, BBA-20
২টি
৩টি
৪টি
৫টি
3813. Cement-এর Consistency test-এ কোনটি ব্যবহৃত হয়?[MOLE-19, BB-20]
Casagrande apparatus
Vicat's apparatus
UTM
Proctor apparatus
3814. The weight of cement in one bag is- [MES-18]
45 kg
50 kg
60 kg
65 kg
3815. The specific gravity of stone should not, in any case, be less than- [MES-18]
1
1.5
2
2.5
3816. সর্বনিম্ন কত মিমি চালুনি দিয়ে অতিক্রম না করলে নমুনাকে কোর্স এগ্রিগেটস হিসেবে ধরা হয়? /BWDB-20]
৪.৭৫ মিমি
২.৩৬ মিমি
২.৪৫ মিমি
৫ মিমি
3817. What is the standard width of corrugated sheet? [MES-16]
85cm
80cm
70cm
75cm
3818. The bricks should be burnt at temperature from- [MES-16]
300°C to 500°C
500°C to 700°C
700°C to 1000°C
1000°C to 1200°C
3819. The base material for distemper is [MES-18]
chalk
lime
clay
lime putty
3820. How many types of manufacture of fire bricks? [BREB-17]
3
4
2
5