The PLC recognizes only ____.
A. push-buttons
B. pressure switches
C. open or closed contacts
D. float switches
Answer: C
You might also like to view...
A(n) ____ alarm is required in all new residential construction that contains fuel-fired appliances or has an attached garage.
A. radon B. halon C. ammonia D. carbon monoxide
A typical hand-crank wire puller, using 30 pounds of force, can pull up to _____.
a. 300 pounds b. 800 pounds c. 1,500 pounds d. 4,000 pounds
Engineers may not be required to follow the provisions of state or federal law when such actions could endanger or compromise their employer or their client's interests.
a. True b. False
Technician A says that a dry chemical fire extinguisher can be used on class A, B and C fires. Technician B says that the chemical used in these fire extinguishers can be corrosive. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician