Related Questions

Catalytic cracking compared to thermal cracking of residue of vacuum distillation of crude oil
A Gives higher yield of petrol
B Lower octane number of petrol
C Higher sulphur content in the product
D Higher gum forming material in petrol
Brass parts with high residual tensile stress at the surface are susceptible to season cracking (i.e. spontaneous cracking occuring on exposure to atmospheric corrosion), if its zinc percentage is more than
A 5
B 10
C 20
D 35
In catalytic cracking process, olefins crack __________ times faster than in thermal cracking process.
A 100
B 200-300
C 1000-10000
D 10
For testing compressive and tensile strength of cement, the cement mortar is made by mixing cement and standard sand in the proportions of
A 1 : 2
B 1 : 3
C 1 : 4
D 1 : 6
As compared to ordinary portland cement, high alumina cement has
A Higher initial setting time but lower final setting time
B Lower initial setting time but higher final setting time
C Higher initial and final setting times
D Lower initial and final setting times
As compared to ordinary portland cement, use of pozzuolanic cement
A Reduces workability
B Increases bleeding
C Increases shrinkage
D Increases strength
When a running car stops suddenly, the passengers tends to lean forward because of:
A Centrifugal force
B Inertia of rest
C Inertia of motion
D Gravitational force
Cold cracking in the heat affected zone of a high strength steel weld can take place because of the
A Retained austenite
B Martensite formation
C Relatively high sulphur content in the base metal
D Sufficient hydrogen present in the welding arc
what is the correct preposition ? Don't lean --- the wall.
A over
B into
C of
D against
Fill in the blank with appropriate preposition : Please lean the ladder --- the wall.
A with
B on
C against
D by

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