Related Questions

An electric furnace producing heat by means of an electric arc struck between each of three electrodes and the charge is called __________ furnace.
A Resistance
B Arc
C Low frequency induction
D None of these
The usual energy consumption in electric arc furnace steel making is __________ KWh/ton of steel.
A 60 - 100
B 400 - 700
C 1200 -1500
D 2000 - 2300
How long should a steel component be heat treated before nitriding?
A 5-20 hours
B 40-100 hours
C 100-200 hours
D 300-500 hours
Nitriding of steel is a process for
A Case hardening
B Spheroidising
C Normalising
D Annealing
Nitriding of a steel part does not increase its
A Grain size
B Fatigue limit
C Surface hardness
D Wear resistance
The purpose of nitriding the steel is to
A Harden its surface
B Soften its surface
C Improve its reliability
D None of these
The electric furnace in which heat is produced by a combination of induced current and skin effect is called __________ furnace.
A Arc
B Resistance
C Low frequency induction
D High frequency induction
__________ furnace is not an electric furnace.
A Arc
B Induction
C Pot
D Resistance
Electric arc furnace is employed mainly for the production of __________ steel.
A High carbon
B Alloy
C Mild
D Plain carbon
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

Next steps