Two technicians are discussing tap and die sets. Technician A says that tap and die sets can only be used to make threads, not repair them. Technician B says that bottom taps are used to thread holes that extend completely through the component. Who is correct?
A. A only
B. B only
C. Both A and B
D. Neither A nor B
Answer: B
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A ___________ is a metal plate or similar device placed inside a cylindrical or cone-shaped vessel to prevent a cyclone-like rotation from being created as the fluid is drawn out of the vessel.
a. sump b. manway c. mist eliminator d. vortex breaker
The Portuguese explorer who finally sailed around the Cape of Good Hope and reached the
Indian Ocean was a. Bernardino de Sahagún. b. Diego Velázquez. c. Henry the Navigator. d. Vasco da Gama.
A CE equivalent amplifier circuit shows an R1 of 16 k? and an R2 of 5.6 k? in parallel from the transistor's base to ground. The transistor's ac beta (hfe) is 220 and its ac emitter resistance (re) is 30 ?. The transistor's input impedance is
A) 7.3 k? B) 16 k? C) 2.55 k? D) 5.6 k?
Electrical conductors listed in order of best to worst are:
A) Gold, silver, copper, aluminum. B) Aluminum, gold, silver, copper. C) Copper, gold, aluminum, silver. D) Copper, aluminum, silver, gold.