Related Questions

A red house is built from red bricks . A blue house is built from blue bricks. A white house is built from white bricks. Then what is a greenhouse made from ?
A green bricks
B wood
C glass
D steel
The solid brick shown is made of small square shaped bricks of side 1. when the large brick is disassembled into its component small bricks. the total surface area of all the small bricks is how much greater than the surface area of the large brick?
A 32
B 40
C 60
D 72
Fireclay bricks is not used for lining the
A Cupola
B Gas producer
C Bottom of hot metal mixer
D Roof of open hearth furnace
Colour of fireclay bricks is
A Light buff to reddish buff
B Yellow
C Black
D None of these
Fireclay bricks are used in the
A Furnaces allowed to cool frequently
B Flues
C Chimney linings
D All of the above
Fireclay bricks are not used in the
A Beehive coke oven
B By-product coke oven walls
C Combustion chamber of B.F. stoves
D Coke oven regenerators
High alumina refractory compared to fireclay bricks have
A Less load bearing capacity
B Less resistance to slag attack
C Low refractoriness
D High resistance to thermal shock and creep
The safe speed for a train rounding a corner is proportional to the square root of the radius . If the safe speed for a curve of radius 49 meters is 28 km/h. The safe speed for a curve of radius 64 metes is :
A (256/7)km /h
B (256/7) km /h
C 32 km /h
D 23 km /h
Two men and women are entrusted with a task. The second man needs three hours more to cope up with the job than the second man and the woman would need working together. The first man, working alone, would need as much time as second man and the woman working together. The first man working alone, would spend eight hours less than the double period of the time second man would spend working alone. How much time would the two men and the women need to complete the task if they all asked together?
A 1 hour
B 2 hours
C 3 hours
D 4 hours
E 5 hours
Porosity of fireclay refractories is __________ percent.
A 5-10
B 10-25
C 25-35
D 35-50

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