The number of threads per inch is referred to as _________
A) Grade B) Gauge C) Pitch D) None of these
C
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When truck radiator hoses collapse internally as an engine cools, which of the following components should be checked out first?
A. water pump B. radiator cap C. thermostat D. fanstat
Small, hard, dry animal droppings, or none at all, may be a sign of ____________________
Fill in the blank(s) with correct word
The motor is loaded by a unidirectional constant-torque load of 40 Nm. A countercurrent braking is performed on the motor. Calculate the following:
A 60 Hz, 480 V, three-phase, Y-connected induction machine has the following
parameters:
a. Motor current before the countercurrent braking
b. Motor current just after the voltage sequence is reversed
c. Current at the moment when the motor stops
d. Motor torque at the condition of part (c)
e. Motor current at the new steady-state point
f. Motor torque at the new steady-state point
g. Motor speed at the new steady-state point
The 555 timer is a(n) ____-pin integrated circuit that has become one of the most popular electronic devices used in industrial electronic circuits.
A. Six B. seven C. Eight D. Nine