Related Questions

Activated carbon is used for
A Disinfection
B Removing hardness
C Removing odours
D Removing corrosiveness
Wood charcoal is obtained by the destructive distillation of wood. It is used in the production of activated carbon, which is not used for the
A Decolourisation of sugar
B Solvent recovery from air and gases
C Absorption of gases and vapor
D Electrode manufacture
Removal of activated carbon from glycerine is done by
A Plate and frame filter
B Rotary vacuum filter
C Batch basket centrifuge
D None of these
During sewage treatment, the sewage is subjected to __________ treatment in Imhoff tank.
A Filtration
B Digestion
C Sedimentation
D Both B and C
When two main plates are kept in alignment butting each other and riveted with cover plate on both sides of the main plates with two rows of rivets in each main plate, the joint is known as ________ double cover butt joint.
A Single riveted
B Double riveted
C Multi riveted
D None of these
When two main plates are kept in alignment butting each other and riveted with cover plate on both sides of the main plates with two rows of rivets in each main plate, the joint is known as _______ double cover butt joint.
A Single riveted
B Double riveted
C Both (A) and (B)
D None of these
The main purpose of control rod in a nuclear reactor is to control the
A chain reaction & hence the power output by regulating the number of secondary neutrons for fission
B emission of hazardous radiation
C conversion of fissile material into fertile material
D velocity of the secondary neutrons
In pneumatic control systems the control valve used as final control element converts
A Pressure signal to electric signal
B Pressure signal to position change
C Electric signal to pressure signal
D Position change to pressure signal
Steel will respond to hardening by heat treatment processes, only when the minimum carbon content in it is __________ percent.
A 0.02
B 0.2
C 0.35
D 0.5
The minimum carbon content in steel should be __________ percent for it to respond to a hardening treatment.
A 0.2
B 0.4
C 0.6
D 0.8

Next steps