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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