Mechatronics

In ladder logic, 'coil' is used to denote input

• True

• False

When a Normally Closed (NC) contact is used in PLC default output will be

• ON

• OFF

Set bit (S) is used to set the output high even after the input push button switch is released

• True

• False

In a Single Acting Cylinder (SAC) the retraction is done either by gravity or by a spring

• True

• False

The device that converts hydraulic pressure and flow into rotational mechanical energy is:

• Hydraulic motor

• Hydraulic pump

In ladder logic, the coil and the contacts are connected using:

• Horizontal Rung

• Left Vertical Rung

• Right Vertical Rung

The output Y1 turns ON when:

• X1 is on AND either X2 OR X3 is off

• X1 is on AND either X2 OR X3 is on

• X1 is on OR both X2 OR X3 is on

• X1 is off AND either X2 OR X3 is on

Which logic gate does the above ladder logic represent

• AND gate

• OR gate

• NAND gate

• NOR gate

Which logic gate does the above ladder logic represent?

• AND Gate

• OR Gate

• NAND Gate

• NOR Gate

The programming language used for programming the PLC:

• Ladder Diagram

• C program

• OOP

• Simulink