Specific _________________ is a dimensionless quantity ?
(A) Heat
(B) Humidity
(C) Weight
(D) None of these
‘GASOHOL’ widely used in Brazil as a motor fuel is a mixture of alcohol and____________________?
(A) Petrol
(B) LPG
(C) Light hydrocarbon gases (e.g. butane or propane)
(D) None of these
Batch process is preferred over continuous process, when the___________________?
(A) Product yields and quality cannot be achieved in continuous process, because of long residence time
(B) Sales demand of product is not steady
(C) Same equipment cannot be used for several processes of the same nature
(D) All (A),
Which of the following processes follows the hardening process for reducing the hardening strains & increasing the toughness of the steel part ?
(A) Anodising
(B) Tempering
(C) Carburising
(D) Annealing
Electrochemical corrosion can occur, only if ________________ is present in contact with metal?
(A) Air
(B) Oxygen
(C) Liquid medium
(D) Gaseous medium
The ability of tool steel to resist softening at high temperatures is termed as __________________ hardness?
(A) Red
(B) Extended
(C) Super
(D) Extreme
In the acid Bessemer process, the hot metal should have the following composition ?
(A) S < 0.05% and P < 0.05%
(B) S < 0.05% and P < 1.5%
(C) S 1.5%
(D) S > 1.5% and P < 0.05%
A particle is settling in a liquid under Stokesian conditions. The free falling velocity of the particle is proportional to____________________?
(A) √(Particle diameter)
(B) Particle diameter
(C) (Particle diameter)2
(D) (Particle diameter)3
Screws are specified by their _____________ diameters?
(A) Minor
(B) Major
(C) Pitch
(D) None of these