Which of the following is a function of brazing flux?
a. Floats out oxides ahead of the filler metal
b. Bonds to the base metal
c. Causes oxidation
d. Prevents wetting of the metals
a
You might also like to view...
Which of these terms is a measure of the actual on-time measured in milliseconds?
A) Amplitude B) Period C) Frequency D) Pulse width
Photoperiodism:
A. the response of plants to cloud cover. B. the response of plants to light intensity. C. the response of plants to daylength. D. the response of plants to shadows.
A discrete-time system has a transfer function,
(a) What is the final value of its response to a unit sequence excitation?
(b) If a discrete-time impulse of strength 8 is applied at time n = 7, and that is the only excitation of the system for all time, find the value of the response at time, n = 12.
A set of small robots needs to be equipped with wireless devices. Consider the usefulness of the following devices if used in a laboratory environment:
(a) WMAN (b) WLAN (c) WPAN