A. Graphite
B. Lead sulphide
C. Lead
D. Both B. & C.
Lead pencil contains____________________? Read More »
Chemical Engineering Basics A. Galvanising
B. Tinning
C. Sherardizing
D. None of these
A. Septic tank
B. Oxidation well
C. Digestor
D. Lagoon
The underground well of a bio gas plant is called the________________? Read More »
Chemical Engineering Basics A. 6
B. 18
C. 38
D. 52
A. Partial condensation of steam
B. Vibration of the pipeline
C. High degree of superheat of steam
D. Its exposure to torrential rain
Water hammer is caused in steam carrying pipelines, because of ______________________? Read More »
Chemical Engineering Basics A. Easily available
B. Not soluble in blood at high pressure
C. Lighter than nitrogen
D. Completely miscible with oxygen
in water bubbles formation, which on rupture cause cavitation
A. Pressure falls below the vapour pressure
B. Pressure becomes very high
C. Temperature becomes low
D. All A, B & C
A. 25
B. 35
C. 55
D. 75
A. Silver nitrate
B. Silver halide
C. Calcium silicate
D. Metallic silver
Photographic plates are coated with _____________________? Read More »
Chemical Engineering Basics A. 9 : 1
B. 17 : 1
C. 23 : 1
D. 29 : 1
