Related Questions

Faster rate of drying of moulded refractories results in high __________ of refractories.
A Green strength
B Voids
C Shrinkage
D Both B and C
Pure bauxite is the best raw material for the manufacture of high alumina refractories, in which maximum alumina content can be as high as __________ percent.
A 55
B 70
C 80
D 90
Refractories are dried in the
A Rotary kilns
B Tunnel kilns
C Sun
D None of these
Solution Y is 40 percent sugar by volume and solution X is 20 percent sugar by volume. how many gallons of solution that is 25 percent sugar by volume/
A 75
B 150
C 240
D 450
Solution X is 10% percent alcohol by volume, and solution Y is 30 percent alcohol by volume. How many milliliters of solution Y must be added to 200 milliliters of solution X to create a solution that is 25 percent alcohol by volume?
A 600
B 800
C 300
D 250
E None of these
Dried milk dried meat are examples of preservation by
A Pasteurization
B Dehydration
C Strerilization
D None of the above
Shrinkage allowance on pattern is provided to compensate for shrinkage when
A The temperature of liquid metal drops from pouring to freezing temperature
B The metal changes from liquid to solid state at freezing temperature
C The temperature of solid phase drops from freezing to room temperature
D The temperature of metal drops from pouring to room temperature
If C is creep coefficient, f is original pre-stress in concrete, m is modular ratio, E is Young's modulus of steel and e is shrinkage strain, the combined effect of creep and shrinkage is:
A (1 - C) mf - eE
B (C - 1) mf + eE
C (C - 1) mf - eE
D (1 - C) mf + eE
Shrinkage allowance on pattern is provided to compensate for shrinkage when the
A Metal changes from liquid state to solid state at freezing temperature
B Solid phase temperature drops from freezing temperature to the room temperature
C Liquid metal temperature drops from pouring temperature to room temperature
D Liquid metal temperature drops from pouring temperature to freezing temperature
Porosity of fireclay refractories is __________ percent.
A 5-10
B 10-25
C 25-35
D 35-50

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