Objective questions on Mechatronics And Industrial Automation

M.Sc Electronics Semester IV Exam Oct/Nov 2019 Shivaji University Kolhapur

LVDT is ______ device of PLC
(a) Output
(b) Input
(c) Both Input and Output
(d) None of these

In PLC ladder diagram output instructions are entered on the ______ side of the ladder.
(a) Left
(b) RIght
(c) Either right or left
(d) None of these

In general PLC have ___ number of input and output pins
(a) Same
(b) Different
(c) 25
(d) 20

The number of input registers in PLCs is normally ____ of holding registers.
(a) One tenth
(b) One fourth
(c) Equal
(d) None of these

The terminal number is the bit address for particular terminal ______
(a) Input
(b) Output
(c) Both a and b
(d) None of these

In normally ______contact, when this contact open, the function carries out some kind of action.
(a) Open
(b) Close
(c) Latch
(d) None of these

In PLC _______ is used as a bit file delimiter.
(a) /
(b) :
(c) \
(d) None of these

A single input timer is called a ______ timer
(a) Retentive
(b) Nonretentive
(c) Both (a) & (b)
(d) None of these

In PLC ladder diagram, the ____ turns the following specified number of lines to the OFF state.
(a) SK
(b) MC
(c) MCR
(d) All of these

The number of input resisters in PLCs is normally one tenth of ___ register.
(a) Holding
(b) Working
(c) Output
(d) Input

A ____ is called output device of PLC.
(a) Sensor
(b) Switch
(c) Motor
(d) None of these

In PLC artimetic subtraction operation, if result is ____ in the result resister, then it turns coil ON.
(a) Negative
(b) Positive
(c) Zero
(d) None of these

The _____ determines which rack the module sits in.
(a) Rack number
(b) Terminal number
(c) Both (a) and (b)
(d) None of these

The ______ is advantage of PLC
(a) Flexibility
(b) Low cost
(c) Security
(d) ALl of these