High speed steel tools retain their hardness upto a temperature of __________________ °C?

Related Mcqs:

A spring material should have low__________________?

A. Elastic limit B. Deflection value C. Fatigue resistance D. None of these...

The most economical channel section for the fluid flow is the one for which the discharge is maximum for a given cross-sectional area. Vertical velocity distribution in an open channel for laminar flow can be assumed to be_______________?

A. Parabolic B. Hyperbolic C. Straight line D. None of these...

Which of the following is an undesirable property of slag produced during the Pyrometallurgical method of metal extraction from its ore ?

A. High fusibility & fluidity B. High thermal conductivity C. Low density D. High chemical activity...

Primary designation of steel is based on its__________________?

A. Hardness & tensile strength B. Carbon content C. Iron content D. Alloying elements content...

Air/fuel ratio by weight for combustion of methane with theoretical quantity of air will be about ____________________?

A. 9 : 1 B. 17 : 1 C. 23 : 1 D. 29 : 1...