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.Management Sciences
Category: Chemical Engineering Basics
Upto the critical radius of insulation, added insulation, will____________________?
0
A. Increase the heat loss
B. Decrease heat loss and will have no effect beyond that
C. Decrease heat flux
D. Reduce convection heat loss compared to conduction heat less
Out of the following, which will fracture most readity, when hit with a hard hammer ?
A. Brass
B. Bronze
C. German silver
D. Cast iron
____________________ are normally subjected to sub-zero treatment?
A. Highly stressed parts
B. Gauges or precision parts
C. Cold rolled sheets
D. Non machinable materials
Material of construction of foundry crucible is _________________?
A. Lead
B. Stainless steel
C. Graphite
D. Cast iron
____________________ of hard alloy and tool steel is done to make it easily machinable ?
A. Case carburising
B. Tempering
C. Normalising
D. Annealing
Most important property of steels for use in automobile bodies is the___________________?
A. Formability
B. Yield strength
C. Toughness
D. Resilience
Which of the following is prone to cup and cone fracture ?
A. Cast iron
B. Soft brass
C. Round specimen of ductile metal
D. Flat tensile specimen of ductile metal
Consumable electrodes are used in the ____________________ welding?
A. Gas
B. Arc
C. Thermit
D. Resistance
In case of simple harmonic motion, displacement is proportional to the_________________?
A. Velocity
B. Acceleration
C. Both A. & B.
D. Neither A. nor B.
Which of the following is not the commercial name of poly-methyl-methacrylate (PMMA) ?
A. Styrofoam
B. Lucite
C. Perspex
D. Plexiglass
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