The adhesiveness is the property of a sand due to which
A. it evolves a great amount of steam and other gases
B. the sand grains stick together
C. it cling to the sides of a moulding box
D. none of these
Answer C
Projection welding is a
A. continuous spot welding process
B. multi-spot welding process
C. arc welding process
D. process used for joining round bars
Answer B
The brass and bronze are welded by __________ flame.
A. neutral
B. Oxidizing
C. carburising
D. all of the above
For smoothing and cleaning out depressions in the mould, a __________ is used
A. Slick
B. Lifter
C. Swab
D. gagger
The instrument used to measure external and internal diameter of shafts, thickness of parts and depth of holes, is
A. outside micrometer
B. inside micrometer
C. depth gauge micrometer
D. vernier caliper
Answer D
