Brass contains___________________?

Related Mcqs:

1. DuraJomin contains___________________?

   A. 94% aluminium, 4% copper and 0.5% Mn, Mg, Si and Fe B. 92.5% aluminium, 40% copper, 2% nickel, and 1.5% Mg C. 10% aluminium and 90% copper D. 90% magnesium and 9% aluminium with some copper E. 94% aluminium and 6% tin...

2. Brass (alloy of copper and zinc) is an example of__________________?

   A. substitutional solid solution B. interstitial solid solution C. intermetallic compounds D. all of the above E. none of the above...

3. The crystal structure of brass is_________________?

   A. F.C.C. B. B.C.C. C. H.C.P. D. Orthorhombic crystalline structure E. none of the above...

4. Admiralty brass used for steam condenser tubes contains copper and zinc in the following ratio_________________?

   A. 50 : 50 B. 30 : 70 C. 70 : 30 D. 40 : 60 E. 60 : 40...

5. In which of the following cases, consideration of creep is important_________________?

   A. flywheel of steam engine B. cast iron pipes” C. cycle chains D. gas turbine blades E. piston I.C. engine...

6. The surface hardness of the following order is achieved by nitriding operation__________________?

   A. 600 VPN B. 1500 VPN C. 1000 to 1100 VPN D. 250 VPN E. 2000 VPN...

7. Gamma iron exits at following temperature___________________?

   A. room temperature B. near melting point C. between 1400°C and 1539°C D. between 910°C and 1400°C E. none of the above...

8. Pipes for bicycle frames are made of___________________?

   A. cold rolled steel B. hot rolled steel C. forged steel D. cast steel E. carbon-chrome steel...

9. Permalloy is a___________________?

   A. kind of stainless steel B. none ferrous alloy C. polymer D. cutting tool material E. nickel and iron alloy having high permeability...

10. Delta metal is an alloy of__________________?

    A. copper, zinc and iron B. iron, nickel and copper C. iron, lead and tin D. iron, aluminium and magnesium E. copper, zinc and antimony...