Q.1 An example of discrete (digital) control is:
Q.2 A solenoid is an example of an output device.
Q.3 To increase the number of inputs and outputs of the PLC
Q.4 One of the following is an input device
Q.5 Solenoids, lamps, motors are connected to:
Q.6 In a PLC “I†is used for output and “O†is used for input
Q.8 PLC can be programmed by which of the following language
Q.9 price of plc's are fixed on the basis of
Q.11 normal plc scan time is
Q.12 plc can have input as
Q.13 plc can have output as
Q.14 which of following is input to plc
Q.15 which of the following is output to plc
Q.19 The PLC is used in _______.
Q.20 The part that monitors the inputs and makes decisions in a PLC is the CPU.
Q.21 Which of the following statements is correct?
Q.22 Which of the following statements is NOT correct?
Q.23 The _____ is moved toward the relay electromagnet when the relay is on.
Q.24 When a relay is NOT energized:
Q.25 Which of the following RLL applications is not normally performed in early automation systems?
Q.26 Current flows into the _____
Q.27 In a current sinking DC input module _____
Q.28 AC output field devices can interface to _____
Q.29 What one item in the input module circuit above should be changed to make it correct.
Q.30 What is nominal DC voltage given to PLC?
Q.31 What is the full form of PLC?
