Download Industrial Maintenance Technician Test 83 complete solutions. and more Exams Industrial Engineering in PDF only on Docsity!
83 complete solutions.
Industrial Maintenance Technician Test
83 complete solutions.
Which device do you use to measure voltage? - ANSWER Multi Meter
If you were asked to check out the I/O card on a plc, which card would you look at? - ANSWER Input Card
What does the term current refer to while dealing with electricity? - ANSWER Amps
On a hydraulic pump if you were told the pump is cavitating, what would you check for? - ANSWER Low fluid in the tank
In a 480 volt three phase system, what would your meter read if you went from one leg to ground? - ANSWER 277
WHICH TOOL IS USED WHEN MEASURING SCREW PITCH - ANSWER Thread Gauge
What is a circuit breaker? - ANSWER an automatically operated electrical switch designed to protect an electrical circuit from damage caused by overload or short circuit.
What does a D.P.S.T. switch refer to? - ANSWER double pole single throw
How many teeth are on a 40B12 sprocket? - ANSWER 12
The BCD equivalent of 1247 converts to_____. - ANSWER 0001 0010 0100 0111
What is the binary value of the following terms: Word and Nibble - ANSWER 16 digit and 4 digit
83 complete solutions.
What type of programming is used by PLCs. - ANSWER ladder logic
What is the Octal and Hexadecimal= 0-9,A,B,C,D,E,F equivalent for the decimal numbers 1-15 - ANSWER 0-7, 10-17, 20... and 0-9,A,B,C,D,E,F
Typical BCD input devices include ____. - ANSWER thumbwheel switches
BCD code stands for _____. - ANSWER binary coded decimal
The decimal 1000 has a Weighted Value Position of ______. - ANSWER 3
If in binary a zero signifies an OFF state a one signifies____________. - ANSWER an ON state
How many symbols are in the octal number system? - ANSWER 8
To convert from binary to octal, you select bits in groups of ____ - ANSWER 3
A register or word is composed of ____. - ANSWER sixteen bits or two bytes.
The two basic sections of a PLC are the - ANSWER the central processing unit and the input/output system
State the primary sections of PLCs. - ANSWER Input modules, (CPU) Central Processing Unit, Output modules, Programming device, Operator Interface Device
PLC Input modules convert_______________ - ANSWER signals(analog or discrete/digital) provided by various switches and sensors into logic that can be used by the CPU
83 complete solutions.
Typical analog signals vary from ________ - ANSWER 4 to 20 milliamps
Advantages of PLCs are____________ - ANSWER Smaller size, easier and faster system changes, integrated diagnostics, immediate documentation.
The proximity switch _________ - ANSWER senses the approach of a metallic machine part either by a magnetic or high frequency electromagnetic field. when objects are near by
Calculate the synchronous speed of a rotating magnetic field created by the stator given the following information: # of poles: 4 frequency: 60Hz phases: 2 - ANSWER srpm=120xF/P 120X60/4=1800srpm
Four resistors having a value of 100 ohms each are connected in parallel. What is the total resistance of this circuit? - ANSWER 1/100 + 1/100 +1/100 + 1/100= 25 ohms
Identify ohms law - ANSWER V= IR
What is the purpose of the test equipment Galvanometer? - ANSWER Type of Ammeter
When using a multimeter to measure an output voltage, you should ensure that the dc voltage component does not exceed what maximum voltage? - ANSWER .707% of full deflection
What is a coulomb? - ANSWER unit of electric charge, equal to the quantity of electricity conveyed in one second by a current of one ampere.
What is the decimal value of the highest symbol in the hexadecimal system? - ANSWER F=15 0-9A-F
What term describes the use of four binary digits to represent on decimal digit? - ANSWER BCD Binary Code Decimal
83 complete solutions.
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? - ANSWER 120v
Newly installed motor runs in reverse direction, state the suspected fault? - ANSWER leads L1 and L may need to be reversed
What test equipment is used to measure KW? - ANSWER Wattmeter
What test equipment is used to measure kva - ANSWER clamp on ammeter
What is the most common type of rotor used in a 3phase AC motor? - ANSWER squirrel cage
What is the formula required to calculate the proper Phase voltage across single phase to neutral, and what voltage indicates a good reading, given its rating: 3phase 4wire, 240V motor. - ANSWER 240/1.73=138 volts
What is the purpose of a steam trap? - ANSWER discharge condensation and non condensables
: State the formula and SI units for PRESSURE - ANSWER P=F/A F=PxA
State the formula and SI units for AREA OF A TRIANGLE - ANSWER A=1/2xBxH
State the formula and SI units for AREA OF A CIRCLE - ANSWER A=PIxR,
State the formula and SI units Volume of cylinder - ANSWER V=PIxR,2xH
A fundamental rule of liquids that makes them suitable for use in hydraulic operations is that liquids are essentially ____________________. - ANSWER Incompressable
83 complete solutions.
A type of bearing designed to withstand forces perpendicular to the axis or shaft is called a __________________. - ANSWER Radial bearing
A type of bearing which uses long, thin cylinders to move in an oscillary motion rather than rotary__________________. - ANSWER Needle bearing
It is stated that 1 cubic foot of water weighs 62.4 pounds. Using Pascal's law for force, calculate the pressure on the bottom of the container. - ANSWER 62.4/144in= .433lbft
What are the five basic components associated to a Hydraulic system and discuss each of their functions? - ANSWER 1.Reservoir-Holds the hydraulic fluid.
2.Pump-generates flow in the system.
- Valves- Controls the hydraulic fluid.
4 Actuators- Cylinders and Motors.
5- Connectors/Conductors-hook components together to form a system.
Name 4 types of liquids used with Hydraulic systems. - ANSWER petroleum based, phosphate ester, synthetic- fire resistant, water based- fire resistant
What is the most commonly used Hydraulic fluid and what some of its advantages? - ANSWER mineral oil- petroleum based
In a pipe kit, what is the function of the Die? - ANSWER rethread male outside threads
What type of caliper is used for finding shaft centers or locating shoulders? - ANSWER vernier
What is meant by the schedule number marking found on a pipe, and what formula is used to determine the standards? - ANSWER standardizing pipe thickness
83 complete solutions.
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. - ANSWER Aluminium and its Alloys. Copper. Brass
A gear with a small number of teeth (under approximately 20-25 teeth) is called a ______________________. - ANSWER pinion
A __________________ prevents a gear from sliding endwise. - ANSWER setscrew
When two spur gears are in mesh, the number of teeth in one gear divided by the number of teeth in the other is called the ____________ _______________. - ANSWER gear ratio
Why is flux used when soldering? - ANSWER To prevent the formation of metal oxides at extreme temperatures
