Objective questions answers
(1) Hardwire control means?
(A) Controlling the hardware with
the help of software.
(B)
Controlling the plant with relays contactors etc. without any programmable
controller
(C) Controlling the plant with
relays contactors etc. with programmable controller
(D) None
(2) Solenoids, lamps, motors are connected to
(A) Analog input
(B) Analog output
(C) Digital input
(D)
Digital output
(B) It detects the signal state
from 1 to 0 and remains close till signal is 0.
(C)
It detects the signal state from 1 to 0 and remains close for one scan cycle
only.
(D) When signal state is 1 this instruction remains
close.
(4) Full name of DCS
is?
(A) Designed Control System
(B)
Distributed Control System
(C) Display Control System
(D) Dedicated Control System
(5) For PLC’s scan cycle which one is correct?
(A) Program execute Output write
Input read
(B) Input read Output write Program
execute
(C) Output write Input read Program
execute
(D)
Input read Program execute Output write
(6) CPU 1214C has __
integrated digital inputs and __ digital outputs
(A) 10 & 12
(B) 12 & 14
(C) 12 & 10
(D)
14 & 10
(7) Programming
language for PLC is..
(A) Function Block Diagram (FBD)
(B) Statement list (STL)
(C) Ladder
(D)
All of the above.
(8) What is full name of SCADA?
(A) Supervision Control and Data
Acquire
(B) Supervisory Control and Data
Administration
(C)
Supervisory Control and Data Acquisition
(D) Super Control and Data Acquisition
(9) Digital input of
CPU 1214C is..
(A) 12VDC
(B) 230VAC
(C)
24VDC
(D) 10VDC
(10) In S7-1214C CPU,
default address of Analog Input Starts from _________.
(A) IW 256 (B) IW 64 (C) IW 112 (D) IW 96
(11) PLC’s analog
input/output has.
(A) 1 bit address
(B) 1 byte address
(C)
1 word address
(D) 1 double word address
(12) The PLCs were
originally designed to replace..
(A) Analog controllers
(B) DCS
(C) Microcomputers
(D)
Hardwired control
(13) In Counter when CV
is equal to or greater than PV, then
(A) CU bit will set
(B) CU bit will reset
(C) QU bit will reset
(D)
QU bit will set
(14) In S7-1200, we define Timer value (PT) as
____________.
(A)
T#1s
(B) T1 (C) IEC 0 (D) S5t#1s
(15) When signal state
changes from 0 to 1 in LD input of CTD (down counter), then…
(A)
CV will reset
(B) PV will reset
(C) The value at CV is set to the
value of PV
(D) The value at PV is set to the
value of CV
(16) A control valve
will receive _____ signal from an analog output module is the count is 27648.
The module is configured for 0 to 10V.
(A)
10V (B) 5V (C) 8V (D) 7.5V
(17) The Real Data type
comprises of _______ Bits.
(18) Answer the following considering the
network shown.
If I0.0 = 0 & I0.1 = 1 then
status of Q0.0 = 0
If I0.0 = 1 & I0.1 = 1 then status of Q0.0 = 1
(19) Write ladder logic
for following conditions
When start PB is
pressed, Motor Right will start and stop when LS1 (2) is activated. Then Motor
left will start and stop when LS1 (1) is activated. When stop is pressed, it
will stop.
(20) How many Signal modules we can connect in 1214C CPU? ______
(A) 8 (B) 10 (C)
32 (D) 11
(21) From following, which CPU is not available for S7-1200 PLC? ______
(A) 1211C (B)
1212C (C)
1213C (D)
1215C
(22) Which answer names all the memory bytes
addressed with MD 200?
(A) MW 201,202 (B) MB 200 (C)
MB 200,201,202,203 (D) MB 200,201
(23) TIA Portal Software has Portal View &project View.
sir
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ReplyDeleteI need solutions of questions 18 and 19 please
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