A(n) ____ process uses a consumable alloy tube.
A. air carbon arc cutting
B. oxygen lance cutting
C. laser beam cutting
D. laser beam welding
Answer: B
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Threads that are very strong and are used to transmit power and motion in either direction are:
A. Buttress threads B. Acme threads C. Worm threads D. Unified inch screw threads
The optical scope of a level's magnification typically ranges from ________ to ________
A) 2x, 10x B) 8x, 32x C) 8x, 24x D) 4x, 16x
When German immigrants came to the United States, they
A. often became Baptist or Methodists. B. mixed well with other Americans. C. remained mostly in the Northeast. D. prospered with astonishing ease. E. dropped most of their German customs.
Para evitar que el concreto se congele antes de que se cure con un clima frío, se puede utilizar _____.
a. losas de celdas plásticas expandidas b. compuestos de curado c. agua potable d. revestimientos plásticos