nined6rider
Member
1)If a programmable controller controls the operation of
a motor,what connects motor control to the PC?
A) Line voltage
B) I/O device
C) Modem
D) RS232 cable
2)Which of the following input operations require a
conversion to digital form prior to input? A) Disc
B) Analog
C) Contact closures
D) Limit switches
3)How many main-line contactor assemblies are in an across
the line AC reversing motor control?
A) 1 B) 2
C) 3
D) 4
4)The start button in a motor control circuit is released.The
motor starter contacts open or coil doesn't remain
energized. The trouble is likely to be? A) stop switch contacts
B) overload resets
C)holding contact circuit
D)motor starter coil
5)Main contacts of a reverse starter are connected that 2
line wires,of 3 feeding the motor are? A) shorted 4 plugging
B) open
C) closed for jogging
D)
a motor,what connects motor control to the PC?
A) Line voltage
B) I/O device
C) Modem
D) RS232 cable
2)Which of the following input operations require a
conversion to digital form prior to input? A) Disc
B) Analog
C) Contact closures
D) Limit switches
3)How many main-line contactor assemblies are in an across
the line AC reversing motor control?
A) 1 B) 2
C) 3
D) 4
4)The start button in a motor control circuit is released.The
motor starter contacts open or coil doesn't remain
energized. The trouble is likely to be? A) stop switch contacts
B) overload resets
C)holding contact circuit
D)motor starter coil
5)Main contacts of a reverse starter are connected that 2
line wires,of 3 feeding the motor are? A) shorted 4 plugging
B) open
C) closed for jogging
D)