A. Aluminium
B. Brass
C. Cast iron
D. Steel
Related Mcqs:
- Which of the following is the most wear resistant grade of carbide used for the cutting tools ?
A. Aluminium carbide
B. Tungsten carbide
C. Nickel carbide
D. Iron carbide - Carbide tipped cutting tools are manufactured by powder metallurgy techniques and have a composition of_____________________?
A. 90% tungsten carbide and 10% cobalt
B. 70% aluminium oxide & 30% silica
C. 30% nickel, 15% chromium & 55% tungsten
D. 65% tungsten & 35% zirconium - For the irreversible reaction, Ca+ 2C = Ca C2 , Δ H°298 = – 60000 J . mole-1 . If a system initially containing 2 moles of calcium, 3 moles of carbon and 1 mole of calcium carbide is allowed to react to completion, the heat evolved at 298 K will be__________________?
A. 30,000 J
B. 60,000 J
C. 90,000 J
D. 2,40,000 J - Powder metallurgy technique is used in the production of ____________________ tools ?
A. Tungsten carbide
B. High carbon steel
C. High speed steel
D. Drilling - High speed steel tools retain their hardness upto a temperature of __________________ °C?
A. 500
B. 750
C. 900
D. 1100 - Non-ferrous alloys used for making cutting tools need not have high__________________?
A. Abrasion resistance
B. Toughness
C. Red hardness
D. Cutting speed - Alcohols are not suitable as diesel engine fuel because the cetane number of alcohols is____________________?
A. Very low which prevents their ignition by compression
B. Very high which prevents their ignition by compression
C. Zero
D. None of these - The most suitable material of construction for a sewer to carry sewage under high pressure is________________________?
A. Asbestos cement
B. Steel
C. Cement concrete
D. Stoneware - Which of the following is the most suitable abrasive for grinding high tensile strength materials ?
A. Silicon carbide
B. Corundum
C. Aluminium oxide
D. Boron carbide - ______________ pipe is the most suitable for carrying sanitary drainage?
A. Stainless steel
B. Reinforced cement concrete
C. Cast iron
D. Asbestos cement
