Related Questions

If 'blue' means 'green', green' means 'yellow' 'yellow' means 'orange', 'orange' means 'black', 'black' means 'white', 'white' means 'red', 'red' means 'pink', 'pink' means 'brown', 'brown' means 'grey', than what is the color of human blood?
A black
B red
C white
D orange
An insulating refractory brick should have high porosity and low thermal conductivity. Which of the following is not used for inducing porosity in the insulating refractory bricks during its manufacture?
A Cork
B Saw dust
C Sand
D Chemically prepared foam
Maximum alumina content in high alumina refractory can be as high as __________ percent.
A 30
B 50
C 70
D 90
Dry mix hydraulic compositions of refractory aggregates with suitable bonding materials are called refractory
A Mortars
B Cements
C Castables
D None of these
An SCR is made of silicon and not germanium because silicon
A Is inexpensive
B Is mechanically strong
C Has small leakage current
D Is tetravalent
Silicon percentage in silicon steel used for electrical equipments is about
A 1
B 4.0
C 8
D 14
Silicon percentage in the silicon steel used for electrical appliances/equipments is
A 0.3-0.4
B 12-14
C 3-4
D 20-25
High refractorinness of refractory bricks means, that it has a
A High spalling resistance
B Low spalling resistance
C High resistance to fusion
D Low porosity
Thermal diffusivity of a refractory brick is high, when its __________ is high.
A Density
B Specific heat
C Thermal conductivity
D None of these
If A + B means A is the sister of B; A x B means A is the wife of B, A % B means A is the father of B and A - B means A is the brother of B. Which of the following means T is the daughter of P?
A P x Q % R + S - T
B P x Q % R - T + S
C P x Q % R + T - S
D P x Q % R + S + T

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