Questions Working with Hot and Cold Metals
Identify two ways of eliminating dust as a health hazard.
List three ways of minimizing the toxic and flammable hazards involved in using solvents.
Which of the following presents a fire and explosion hazard in dust-collecting systems?
What three of the aspects that should be included in the safety and health program for foundry workers?
Prolonged contact with oil, grease, acids, alkalis, and dirt can produce _______________________
The need for controlling ventilation in foundries is determined by what three factors?
What hazard is sometimes generated when charging and blasting takes place in cupolas?
To eliminate a carbon monoxide explosion hazard, supply adequate natural or mechanicalin back of the cupola, and open two or more tuyeres after the blowers are shut down.
What is the principal danger in handling refractory clay crucibles?
List four hazards in the construction and operation of core ovens and mold-drying ovens.
Which of the following is usually considered adequate for ovens under 500 ft3 (14,000 L) in volume?
Describe four safeguards that should be provided when grinding magnesium.
To help prevent fires in areas where welding operations are conducted, spread sand on the floor to a depth of
What are the differences between the conventional cold-stamping press and the forging press?
Identify the most widely used nondestructive testing method for forgings.
The resonant-frequency method falls under what general type of nondestructive testing for forged and cast metals?
a. aluminum
b. antimony
c. beryllium
d. phosphorus
e. all of the above
.
a. forced-draft ventilation
b. no ventilation
c. natural-draft ventilation
a. 1 in. (2.5 cm).
b. 1.5 in. (3.75 cm).
c. 2 in. (5 cm).
d. 3 in. (7.5 cm).
a. ultrasonic
b. triboelectric
c. electromagnetic
d. radiography
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