The NAND logic function of a relay ladder circuit is performed by __________.
A. two or more N.O. push buttons connected in series
B. two or more N.O. push buttons connected in parallel
C. two or more N.C. push buttons connected in series
D. two or more N.C. push buttons connected in parallel
Answer: D
You might also like to view...
When a diesel engine is operated exposed to dense grain chaff, which of the following devices can help extend air filter life?
A. lower restriction filter B. higher restriction filter C. air filter pre-cleaner D. adding methyl hydrate to fuel tank
According to the text, hybrid vehicle high voltage batteries can have voltages as high as ________
A) 300 volts B) 144 volts C) 14 volts D) 36 volts
A _____ locks into a post when in the down position and disallows vehicles from driving around it at a crossing.
Fill in the blank(s) with the appropriate word(s).
a. Find the equivalent impedance Zo seen by the source in Figure P4.66(a). Assume the frequency is 377 rad/s.
b. What capacitance should be placed between terminals a and b, as shown in Figure P4.66(b), to make the equivalent impedance Zo purely resistive? [Hint: Find C so that the phase angle of Zo is zero.]
c. What is the amplitude of Zo when the capacitor is included?
