The fermenter used for the production of ethyl alcohol from molasses is made of________________?
(A) Wood
(B) Concrete
(C) Copper bearing steel
(D) Porcelain
Mercury is transported in metal containers made of________________?
(A) Aluminium
(B) Iron
(C) Lead
(D) Nickel
Lead_________________?
(A) Is the hardest metal in common use
(B) Is the lightest metal in common use
(C) Cannot be scratched by finger nails
(D) Cannot be work hardened
Which of the following materials may prove unsuitable for handling acetic acid (glacial & anhydrous) at 40°C ?
(A) Silicone rubber, teflon, porcelain and wood
(B) Nickel, monel, stainless steel and graphite
(C) Aluminium, copper, high silicon iron
(D) Brass, cast iron, mild steel and tin
The softest material just next to talc in the Mhos scale is_________________?
(A) Quartz
(B) Gypsum
(C) Feldspar
(D) Fluorite
In drop forging process, the forging is done by dropping the _____________ at high velocity?
(A) Hammer
(B) Workpiece
(C) Die with hammer
(D) Weight on hammer
Thermal shield used in high powered nuclear reactor to protect the walls of the reactor from radiation damage is made of___________________?
(A) Concrete
(B) Steel
(C) Zircaloy
(D) Graphite
The preferred material of construction for storage tanks for 98% sulphuric acid is_________________?
(A) Aluminium
(B) Lead
(C) Stainless steel 316
(D) Mild steel
An improved and fuel efficient version of the pusher type reheating furnace is the ______________ furnace?
(A) Walking beam
(B) Shaft
(C) Tunnel
(D) Rotary hearth
Scaling of furnace stock is reduced by _______________ in flue gas?
(A) CO
(B) H2
(C) High CO/CO2
(D) All