Pipes for bi-cycle frames are made of _____________ steel?

A. Hot rolled
B. Chrome carbon
C. Cold rolled
D. Stainless

Wood is corroded by__________________?

A. Hydrochloric acid
B. SO2 (dry or wet)
C. Chlorine (dry or wet)
D. All A., B. and C.

Locomotive boiler tubes are made of _____________ alloys?

A. Arsenic copper
B. Magnesium
C. Aluminium
D. Nickel

Which of the following has the least carbon percentage ?

A. Low carbon steel
B. Mild steel
C. Wrought iron
D. White cast iron

The preferred material of construction for storage tanks for 98% sulphuric acid is_________________?

A. Aluminium
B. Lead
C. Stainless steel 316
D. Mild steel

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

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

The softest material just next to talc in the Mhos scale is_________________?

A. Quartz
B. Gypsum
C. Feldspar
D. Fluorite

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

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