Industrial Maintenance Technician Test
Questions and Correct Answers
Question 1
What does the term current refer to while dealing with electricity?
Correct Answer
Amps
Question 2
What is meant by the schedule number marking found on a pipe, and what formula is
used to determine the standards?
Correct Answer
standardizing pipe thickness
Question 3
Typical BCD input devices include ____.
Correct Answer
thumbwheel switches
Question 4
What does the PLC Central Processing unit ( CPU) do?
Correct Answer
evaluates the status of inputs, outputs, and other variables as it excutes a stored
program. The CPU then sends signals to update the status of outputs.
Page 1 of 31
,Question 5
Advantages of PLCs are____________
Correct Answer
Smaller size, easier and faster system changes, integrated diagnostics, immediate
documentation.
Question 6
Name 4 types of liquids used with Hydraulic systems.
Correct Answer
petroleum based, phosphate ester, synthetic- fire resistant, water based- fire
resistant
Question 7
Magnets only stick to ferromagnetic metals like iron, cobalt, and nickel. Magnets will
not attract non-ferrous metals. List 3 types of non-ferrous metals.
Correct Answer
Aluminium and its Alloys. Copper. Brass
Question 8
Solenoids, relay and contactor coils, and indicator lamps are examples of______
Correct Answer
devices often connected to PLC discrete outputs.
Question 9
What is the Programming Device used for?
Correct Answer
it is used to enter or change the PLCs program or to monitor or change stored
values. Once entered the program and associated variables are stored in the CPU
Page 2 of 31
,Question 10
Needle Valve
Correct Answer
Regulate accurate flow control
Question 11
Globe Valve
Correct Answer
A linear motion valve used to stop, start, and regulate fluid flow. Most common
valve in a propulsion plant
Question 12
What is a coulomb?
Correct Answer
unit of electric charge, equal to the quantity of electricity conveyed in one second
by a current of one ampere.
Question 13
Which device do you use to measure voltage?
Correct Answer
Multi Meter
Question 14
How many symbols are in the octal number system?
Correct Answer
8
Page 3 of 31
, Question 15
An electric motor has an apparent resistance of 15 ohms. If 8 amps of current are
flowing through the motor, what is the connected voltage?
Correct Answer
120v
Question 16
The proximity switch _________
Correct Answer
senses the approach of a metallic machine part either by a magnetic or high
frequency electromagnetic field. when objects are near by
Question 17
Fluid power which uses compressed air to affect mechanical motion is called
_____________________.
Correct Answer
Pneumatics
Question 18
How many teeth are on a 40B12 sprocket?
Correct Answer
12
Question 19
What are the five basic components associated to a Hydraulic system and discuss
each of their functions?
Correct Answer
1.Reservoir-Holds the hydraulic fluid.
2.Pump-generates flow in the system.
3. Valves- Controls the hydraulic fluid.
4 Actuators- Cylinders and Motors.
5- Connectors/Conductors-hook components together to form a system.
Page 4 of 31
Questions and Correct Answers
Question 1
What does the term current refer to while dealing with electricity?
Correct Answer
Amps
Question 2
What is meant by the schedule number marking found on a pipe, and what formula is
used to determine the standards?
Correct Answer
standardizing pipe thickness
Question 3
Typical BCD input devices include ____.
Correct Answer
thumbwheel switches
Question 4
What does the PLC Central Processing unit ( CPU) do?
Correct Answer
evaluates the status of inputs, outputs, and other variables as it excutes a stored
program. The CPU then sends signals to update the status of outputs.
Page 1 of 31
,Question 5
Advantages of PLCs are____________
Correct Answer
Smaller size, easier and faster system changes, integrated diagnostics, immediate
documentation.
Question 6
Name 4 types of liquids used with Hydraulic systems.
Correct Answer
petroleum based, phosphate ester, synthetic- fire resistant, water based- fire
resistant
Question 7
Magnets only stick to ferromagnetic metals like iron, cobalt, and nickel. Magnets will
not attract non-ferrous metals. List 3 types of non-ferrous metals.
Correct Answer
Aluminium and its Alloys. Copper. Brass
Question 8
Solenoids, relay and contactor coils, and indicator lamps are examples of______
Correct Answer
devices often connected to PLC discrete outputs.
Question 9
What is the Programming Device used for?
Correct Answer
it is used to enter or change the PLCs program or to monitor or change stored
values. Once entered the program and associated variables are stored in the CPU
Page 2 of 31
,Question 10
Needle Valve
Correct Answer
Regulate accurate flow control
Question 11
Globe Valve
Correct Answer
A linear motion valve used to stop, start, and regulate fluid flow. Most common
valve in a propulsion plant
Question 12
What is a coulomb?
Correct Answer
unit of electric charge, equal to the quantity of electricity conveyed in one second
by a current of one ampere.
Question 13
Which device do you use to measure voltage?
Correct Answer
Multi Meter
Question 14
How many symbols are in the octal number system?
Correct Answer
8
Page 3 of 31
, Question 15
An electric motor has an apparent resistance of 15 ohms. If 8 amps of current are
flowing through the motor, what is the connected voltage?
Correct Answer
120v
Question 16
The proximity switch _________
Correct Answer
senses the approach of a metallic machine part either by a magnetic or high
frequency electromagnetic field. when objects are near by
Question 17
Fluid power which uses compressed air to affect mechanical motion is called
_____________________.
Correct Answer
Pneumatics
Question 18
How many teeth are on a 40B12 sprocket?
Correct Answer
12
Question 19
What are the five basic components associated to a Hydraulic system and discuss
each of their functions?
Correct Answer
1.Reservoir-Holds the hydraulic fluid.
2.Pump-generates flow in the system.
3. Valves- Controls the hydraulic fluid.
4 Actuators- Cylinders and Motors.
5- Connectors/Conductors-hook components together to form a system.
Page 4 of 31
