ISRO SC/ENG 2011

1) Tungsten in High Speed Steel provides

A. Hot hardness
B. Toughness
C. Wear resistance
D. Sharp cutting edge

2) Fluidity in casting (CI) operation is greatly influenced by

A. Melting temperature of molten metal
B. Pouring temperature of molten metal
C. Finish of the mould
D. Carbon content of molten metal

3) Precipitation hardening is applicable for

A. Pure aluminium
B. Low carbon steel
C. Non metal
D. Aluminium-Copper alloy

4) A cutting tool having signature as 10, 9, 6, 6, 8, 8, 2 will have side rake angle

A. 10
B. 9
C. 8
D. 2

5) In radiographic test, type of defect not detectable by X-Ray is

A. Delamination in cladded sheet
B. Porosity in castings
C. Tungsten inclusion in TIG weld
D. Under cut in metal arc welding

6) In CAM, Part programming refers to

A. Generation of cutter location data
B. Online inspection
C. Machine selection
D. Tool selection

7) Which of the following screw thread is adapted for power transmission in one direction

A. Acme threads
B. Buttress threads
C. Square threads
D. Multiple threads