A. FeO
B. SiO2
C. MgO
D. MnO2
Related Mcqs:
- _______________ test determines the yield strength, Young’s modulus of elasticity, percentage reduction in area & percentage elongation of a material ?
A. Tensile
B. Fatigue
C. Impact
D. None of these - In case of brasses, with decreasing zinc percentage and increasing copper percentage, its _____________ increases ?
A. Percentage elongation
B. Brinell hardness
C. Tensile strength
D. All A, B & C - Which of the following alloying elements is present in maximum percentage in high speed steel ?
A. Molybdenum
B. Chromium
C. Tungsten
D. Vanadium - According to maximum shear stress failure criterion, yielding in material occurs, when the maximum shear stress is equal to _______________ times the yield stress ?
A. 0.5
B. 2
C. √2
D. √3/2 - Midrex process of sponge iron production uses reformed natural gas as the reducing agent, which uses iron ore in the form of_________________?
A. Lumps
B. Pellets
C. Briquettes
D. Sinter - Fibre glass is a composite material of_________________?
A. Glass fibre in a polymer matrix
B. Glass fibre in a metallic matrix
C. Polymer fibre in a glassy matrix
D. Both ‘b’ & ‘c’ - Cold chisel & hammers are made of_________________?
A. High speed steel
B. High carbon steel
C. Forged steel
D. Mild steel - Cassiterite is an ore of_________________?
A. Tin
B. Lead
C. Molybdenum
D. Chromium - In a drilling process, the metal is removed by both shearing & extrusion. General purpose drills are made of_________________?
A. Stainless steel
B. Mild steel
C. High speed steel
D. High carbon steel - Natural water contains approximately ______________ percent of heavy water?
A. 0.015
B. 0.71
C. 1.2
D. 3.5
