Gas holder of a gobar (cow-dung) gas plant is made of___________________?

A. Silicon carbide
B. Calcium carbide
C. Fireclay bricks
D. High alumina bricks

A. Molybdenum and nickel
B. Nickel and copper
C. Molybdenum and aluminium
D. Molybdenum and zinc

A. Ductility
B. Malleability
C. Tenacity & hardness
D. Electrical conductivity

A. Creep
B. Erosion
C. Resilience
D. None of these

A. Cast iron
B. Monel
C. Karbate
D. Aluminium or chromium alloys (Cr > 18% for cold acid)

A. 1-5
B. 20-30
C. 100 -150
D. 200 – 250