What is the usual cooling rate per hour for stress relieving?

a. 100°F to 400°F (38°C to 204°C)
b. 250°F to 400°F (121°C to 204°C)
c. 250°F to 500°F (121°C to 260°C)
d. 300°F to 500°F (149°C to 260°C)


d

Trades & Technology

You might also like to view...

A type of fastener with a bugle-shaped head is a _____.

a. drywall screw b. drive screw c. thread-forming screw d. lag screw

Trades & Technology

Deduct for openings in the concrete that are less than one cubic foot (0.05 cubic meters) of volume.

Answer the following statement true (T) or false (F)

Trades & Technology

A receiver's ________ is the minimum input signal, expressed as a voltage, required to produce a specified output

A. selectivity B. intelligence C. sensitivity D. amplification

Trades & Technology

Technician A says one advantage of a variable valve timing system is that it allows a higher-compression engine to burn a lower octane fuel while still being able to control the potential for detonation. Technician B says that most VVT systems use engine oil pressure to control them hydraulically. Who is correct?

A. Technician A only B. Technician B only C. Both technicians D. Neither technician

Trades & Technology