How do you remove the gold contamination from gold-plated cups?
What will be an ideal response?
You remove the gold contamination by simply filling the gold cup with solder, then removing the now contaminated solder, leaving a thin layer of tinning in the cup.
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You can place a ladder in the doorway as long as you _____.
a. firmly place the four feet of the ladder on the ground b. securely close the door before you climb the ladder c. place a barricade or guard before climbing the ladder d. let all other workers know that you are on the ladder
What is the purpose of excess combustion air?
A) Excess air improves the over-fire draft. B) Excess air is added to increase the combustion temperature. C) Excess air is added to improve combustion efficiency. D) Excess air is added to ensure complete combustion.
The lowest portion of a telescopic boom that does not extend is called the _____.
a. actuator b. boom butt c. ring gear drive d. base section
Con la tabla de bloques de revestimiento biselados para bloques de 1,5 pulgadas (3,81 cm), la dimensión interna de un bloque de revestimiento biselado para un tanque con un diámetro de 40 pies (12,19 m) será de:
a. 1-7/8 (4,76 cm). b. 2 c. 2-7/8 (7,30 cm). d. 3-1/16 (7,77 cm).