A. Mild steel
B. Stainless steel
C. Carbides
D. High carbon steel
Related Mcqs:
- _________________ is the most suitable lubricant for drawing mild steel wires?
A. Kerosene
B. Water
C. Sodium stearate
D. Lime water - Often earing defects are found during deep drawing operation, because the __________________?
A. Surface finish of the sheet is poor
B. Sheet material has been given substantial spring back
C. Starting sheet has planer anisotropy due to its texture
D. Starting sheet has normal anisotropy due to its texture - The heat treatment to which the steel wire containing > 0.25% carbon is subjected to is___________________?
A. Full annealing
B. Bright annealing
C. Patenting
D. None of these - ______________ wire is never used for making the heating element ?
A. Nichrome
B. Kanthal
C. Invar
D. None of these - Maximum heat dissipation occurs from a steel wire (k = 0.5 W/m. k) of 15 mm diameter exposed to air (h = 20W/m2 .k), when the insulation thickness is ________________ mm?
A. 15
B. 25
C. 10
D. 30 - Two wires of the same radius & material having length in the ratio of 1 : 2 are stretched by the same force. The strain produced in the two wires will be in the ratio of__________________?
A. 1 : 1
B. 1 : 2
C. 2 : 1
D. 1 : 4 - Milk is fat dispersed in water. It is an example of__________________?
A. Suspension
B. Emulsion
C. Gel
D. Solution - Pearlite comprises of__________________?
A. 87% cementite & 13% Fe
B. 87% ferrite & 13% cementite
C. 93.33% ferrite & 6.67% C
D. 87% ferrite & 13% C - If the head is doubled in & centrifugal pump, the power required will increase in the ratio of__________________?
A. 23
B. 23/2
C. 25/2
D. 21/3 - _______________ rubber is generally used for making ‘O’ rings used for vacuum sealings?
A. Natural
B. Neoprene
C. Butadiene
D. Nitrile
