Delta iron occurs at temperature of_______________?

Related Mcqs:

An important property of high silicon (12 – 18%) cast iron is the high__________________?

A. tenacity B. brittleness C. plasticity D. corrosion resistance E. hardness...

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...

Which of the following represents the allotropic forms of iron__________________?

A. alpha iron, beta iron and gamma iron B. alpha iron and beta iron C. body centred cubic a-iron and face centred cubic a-iron D. alpha iron, gamma from and delta iron E. none of the above...

The following element can’t impart high strength at elevated temperature__________________?

A. manganese B. magnesium C. nickel D. silicon E. none of the above...

Free cutting steels_____________________?

A. are used where ease in machining is the criterion B. contain carbon in free form C. require least cutting force D. do not exist E. can be cut freely even under adverse conditions...