SACA C-202 Electric Motor Control
Systems FINAL EXAM 2025/2026 |
COMPLETE QUESTIONS AND ANSWERS
WITH RATIONALES | 100% VERIFIED/
GRADED A+< RECENT UPDATE>
1. A ladder diagram arranges the conductors in straight horizontal lines, like
rungs on a ladder, with only outputs on each rung. - ANSWER False
2. Which of the following is a component of a ladder diagram? -
ANSWER All of the above
3. Which of the following is not a rule of drawing a ladder diagram? -
ANSWER Each rung (line) can have more than one output device (load)
4. The best method for reading ladder diagrams is to start at the upper left(first
input on the first rung) and work your way across the ring before moving to
the first input of the next rung and work across. - ANSWER True
5. Which of the following is one of the six elements of control logic? -
ANSWER All of the above
6. Which of the following statements is not true of AND logic? -
ANSWER In an AND logic circuit, only one of the inputs must be
activated to energize the output
,7. An OR logic circuit is formed by 2 or more N.O. Switches in parallel. -
ANSWER True
8. Which of the following statements is true on NOT logic? - ANSWER All
of the above
9. NOR logic is formed by 2 or more N.C. switches in parallel. -
ANSWER False
10.NAND logic is formed by 2 or more N.O. Switches in parallel. -
ANSWER False
11.Troubleshooting is the process of finding the cause of a machine
malfunction. - ANSWER This is also known as a fault
12.Most troubleshooters in manufacturing plants perform component level
testing. - ANSWER False
13.The process of finding the cause of a machine malfunction is called fault
hunting. - ANSWER False
14.Which of the following is a method of testing a component? -
ANSWER All of the above
,15.To determine if an indicator lamp has failed, measure the lamp's _______. -
ANSWER Resistance
16.If none of the contacts of a manual switch charge status when the operator is
activated, what is the most probable cause? - ANSWER Mechanical
problem with the operator
17.To test a relay coil out-of-circuit, you would measure _______. -
ANSWER Resistance
18.Which of the following is not a possible cause when none of the contacts on
a motor contactor change status when the coil is energized? -
ANSWER None of the above
19.One possible cause for an overload to trip consistently is that the trip setting
is incorrect (IEC) or the incorrect heater size is being used (NEMA). -
ANSWER True
20.Resistance readings across the windings of a motor should be very high. -
ANSWER False
21.Which of the following is a possible cause for a motor to overheat? -
ANSWER All of the above
22.Parts of an electrical system that should be connected to earth ground
include _______. - ANSWER All of the above
, 23.A(n)_______ is a device that can be used to measure several different
electrical characteristics. - ANSWER DMM
24.The IEC developed a standard to rate DMMs based on the maximum voltage
spike the meter can withstand without causing an arc. - ANSWER True
25.The _______ is the accepted standard in the United States for safely
installing and maintaining electrical systems and equipment. -
ANSWER NEC
26.There is no need to change voltage range on a wiggy. - ANSWER True
27.Which of the following is not a basic rule of electrical safety? -
ANSWER Always work by yourself
28.Who should remove a lockout/tagout? - ANSWER Only the person(s)
who installed it
29.A circuit must be disconnected to use a clamp-on ammeter to measure the
circuit. - ANSWER False
30.Three-phase power is transmitted in phases that are _______ degrees apart. -
ANSWER 120
31.What is the first step when using a DMM to measure continuity? -
ANSWER Set the function switch to the continuity function
Systems FINAL EXAM 2025/2026 |
COMPLETE QUESTIONS AND ANSWERS
WITH RATIONALES | 100% VERIFIED/
GRADED A+< RECENT UPDATE>
1. A ladder diagram arranges the conductors in straight horizontal lines, like
rungs on a ladder, with only outputs on each rung. - ANSWER False
2. Which of the following is a component of a ladder diagram? -
ANSWER All of the above
3. Which of the following is not a rule of drawing a ladder diagram? -
ANSWER Each rung (line) can have more than one output device (load)
4. The best method for reading ladder diagrams is to start at the upper left(first
input on the first rung) and work your way across the ring before moving to
the first input of the next rung and work across. - ANSWER True
5. Which of the following is one of the six elements of control logic? -
ANSWER All of the above
6. Which of the following statements is not true of AND logic? -
ANSWER In an AND logic circuit, only one of the inputs must be
activated to energize the output
,7. An OR logic circuit is formed by 2 or more N.O. Switches in parallel. -
ANSWER True
8. Which of the following statements is true on NOT logic? - ANSWER All
of the above
9. NOR logic is formed by 2 or more N.C. switches in parallel. -
ANSWER False
10.NAND logic is formed by 2 or more N.O. Switches in parallel. -
ANSWER False
11.Troubleshooting is the process of finding the cause of a machine
malfunction. - ANSWER This is also known as a fault
12.Most troubleshooters in manufacturing plants perform component level
testing. - ANSWER False
13.The process of finding the cause of a machine malfunction is called fault
hunting. - ANSWER False
14.Which of the following is a method of testing a component? -
ANSWER All of the above
,15.To determine if an indicator lamp has failed, measure the lamp's _______. -
ANSWER Resistance
16.If none of the contacts of a manual switch charge status when the operator is
activated, what is the most probable cause? - ANSWER Mechanical
problem with the operator
17.To test a relay coil out-of-circuit, you would measure _______. -
ANSWER Resistance
18.Which of the following is not a possible cause when none of the contacts on
a motor contactor change status when the coil is energized? -
ANSWER None of the above
19.One possible cause for an overload to trip consistently is that the trip setting
is incorrect (IEC) or the incorrect heater size is being used (NEMA). -
ANSWER True
20.Resistance readings across the windings of a motor should be very high. -
ANSWER False
21.Which of the following is a possible cause for a motor to overheat? -
ANSWER All of the above
22.Parts of an electrical system that should be connected to earth ground
include _______. - ANSWER All of the above
, 23.A(n)_______ is a device that can be used to measure several different
electrical characteristics. - ANSWER DMM
24.The IEC developed a standard to rate DMMs based on the maximum voltage
spike the meter can withstand without causing an arc. - ANSWER True
25.The _______ is the accepted standard in the United States for safely
installing and maintaining electrical systems and equipment. -
ANSWER NEC
26.There is no need to change voltage range on a wiggy. - ANSWER True
27.Which of the following is not a basic rule of electrical safety? -
ANSWER Always work by yourself
28.Who should remove a lockout/tagout? - ANSWER Only the person(s)
who installed it
29.A circuit must be disconnected to use a clamp-on ammeter to measure the
circuit. - ANSWER False
30.Three-phase power is transmitted in phases that are _______ degrees apart. -
ANSWER 120
31.What is the first step when using a DMM to measure continuity? -
ANSWER Set the function switch to the continuity function
