ALL NOCTI QUESTIONS
A photo detector converts light to a/an ____________ signal
electrical
A coil surrounding an iron core, to which voltage has been applied, is a/an
electromagnet
A solenoid works on the principle of
electromagnetic force
As an object heats up, the object ______ than they absorb
emits (discharge) more heart
A photo diode
emits light when a current passes through it
Mixing oil and compressed oxygen can result in a/an
explosion or fire
Abrasive cutoff saws penetrate material by grinding, which makes them valuable for cutting
extremely tough or hardened material
The relationship between gauge and absolute pressure is ( )
gauge pressure = (absolute pressure) - (atmospheric pressure)
A network interface card (NIC) on a computer is receiving a series of pulses measuring +5 volts DC then alternating back to 0 volts. The +5 volt signal is referred to as
high
When milling aluminum, set the mill at __________ RPM speed
high
Tungsten is a metal with the physical properties of
high strength and good electrical conductivity
The main advantage of drilling on the vertical mill rather than the drill press is that
holes can be more accurately located and spaced
The most accurate way to cut square metal steel tubing is to use a/an
horizontal band saw
Which statement best describes precision alignment?
it projects shaft rotational centers in a straight line
The formula for force of a hydraulic cylinder is (4 words)
pressure multiplied by area
A _________ is a pictorial representation of a process, using a variety of symbols connected by lines and arrows
process flow chart
Compared with hydraulic systems, pneumatic systems provide inexpensive material, faster operation and
a non-hazardous medium
The effort to improve the quality of products and attain cost savings by the manufacture of products without error is a continuous
goal
The junction of two dissimilar metals that produces a voltage proportional to the amount of heat applied is
thermocouple
Wear approved safety glasses whenever working with machinery because
they are tested and rated for protection
While the use of automated production and assembly systems in product manufacturing is well known, such work is still predominately accomplished manually by
human operators
When lead acid batteries are charging, they give off ___________ gas
hydrogen and oxygen
Dispose of oily and paint covered rags
in a step-type safety metal can
The purpose of "Just-In-Time" material system is to control
inventory
Nonferrous metals does not contain any
iron
A specialized schematic used to document industrial control logic systems is a
ladder diagram
A _________ switch opens automatically when the current exceeds a predetermined safety level
limit
A _______________ measures length to an accuracy of 0.001 inch
micrometer
Which of the following is a ferrous metal?
mild steel
The technician should use a _____________ to cut a keyway in a shaft
milling machine
The third color band on a resistor defines the
multiplier
Use ______________ with an oxygen or acetylene regulator
no lubricant at all
Fluid in a hydraulic system is basically
not compressible
The flow through a flow control valve will increase with increase with an increased
orifice or throat size
The acronym, OEM, refers to
original equipment manufacturers
Having things done out-of-house instead of getting them done in-house is called
outsourcing
A typical form of mechanical stress is
overload
When installing a new three-way pneumatic valve, a technician, should attach ports A and B to the
pneumatic cylinder
When testing with compressed air, caution should be given to the _______________ used
pounds per square inch gauge
Use a ______ to determine hydraulic pressure
pressure gauge
Manufacturing product quality control often includes
production flow charts
The best use for a chasing die is to
recut damaged threads
In a fluid system, fluid encounters more ______ when it travels long distances
resistance
Pneumatic fluid power can deliver linear and ______ forms of motion
rotary
Immediately report malfunctions to
safety engineer
Properties of common ______________ materials are divided into the following categories: physical, mechanical, thermal, electric, and acoustic
solid
A means of monitoring the assembly and fabrication process by gathering data and samples to evaluate variations in the process that may impact the final product is called
statistical process control
When energized, a solenoid actuates upon which of the following?
steel
The ability of a metal to withstand shock loading is known as its
toughness
The purpose of a hydraulic system is to
transform mechanical energy into hydraulic energy
Since 1971, when _____________ was created, occupational deaths have been cut by 62 percent and injuries have declined by 42 percent
OSHA
The government organization whose purpose is to set and enforce worksite safety and health standards is
OSHA
A structural engineering company is designing a new stadium. The company has hired specialists to design the video and sound system, parking lot, and playing surface. The specialists are referred to as
sub contractors
Steel reinforcing bars are added to concrete to resist the force of
tension
Because switches can fail after opening a disconnect, the safest practice is to
test the power circuit at the load (downstream) side of the disconnect
If containments block a system, the first place the blockage occurs is in
the suction side of a systems pump
When a micrometer, applied a telescoping hole gauge, reads 6.488 inches for a diameter of a hole that is to be bored 6.494 inches, the hole is to be considered to be
.006 inch undersize
Gauge pressure at sea level is
0 psi
Typical pressure gauges will read ______ at atmospheric pressures
0 psi
When a micrometer reads 2.468 inches for a hole that is to be bored 2.473 inches, the hole is to be considered to be
0.005 inch undersize
Atmospheric pressure at sea level is
14.7 psi
How many ports are in a two-way valve?
2
One inch is equal to
25.40 millimeters
When a force of 10 pounds is applied to the west and a force of 25 pounds is applied to the south, what is the resultant force?
27 pounds SW
For a 365 day year with 20 days of scheduled downtime, availability is
345 days
How much does one gallon of water weigh?
8.3 pounds
The _________ code details welding requirements
AWS
The _____________ code defines requirements when joining metals using the MIG (magnesium inert gas) process
AWS
An international body of technical standards for various industries, designed to promote international trade, engineering conformance, and most recently environmental awareness is known as
International Energy Data and Analysis
Healthier staff, increased attendance, and productivity, increased morale, and reduced litigation risks are some advantages of adhering to ___________ regulations
OSHA
Power in electrical systems can be expressed as
P = volts x amps
A good method of maintaining a safe work area is to maintain a clean work bench, attend safety meeting and
abide by safety signs
An engineer has connected an oscilloscope to measure the output of a standard wall electrical outlet. The oscilloscope shows a 60 hertz sine wave measuring 120 volts. This signal is
analog
Use _______________ to join a nut to sheet material
arc welding
Training on _______________ may be given to comply with OSHA in the workplace
asbestos
A measure of the degree to which equipment is in an operable state at any point in time is called
availability
When a gas cylinder is at a work station, as a safety precaution, the cylinder should
be chained to a rigid object
Identifying leaders in the assembly process in order to routinely compare one's processes and outputs to the leader is called
benchmarking
Before installing a regulator on an oxygen cylinder, slightly crack open the cylinder valve, then close it completely to
blow out any foreign material in the valve
Which of the following colors of the electromagnetic spectrum is the coolest?
blue
A good quality assurance system can
both reduce cost and increase value
A positive example of corrective action is a/an
change in maintenance procedure
An electric inverter ______
changes DC to AC
The speed of a pneumatic cylinder is affected mainly by
compressibility of air
The worst enemy of a pneumatic system is
contamination
Statistical quality control tools often include
control charts
Which of the following adversely effects the strength of materials?
corrosion
In the DC circuit below, if R5 burns open, the total current
decreases
In fluid resistance systems, resistance is affected by the ______ of the pipe
diameter
To determine pressure in a hydraulic system, ________ the total force by the area on which it acts
divide
pneumatic directional control valves are, many times, sized for convenience of piping; however, a more efficient method is to size according to
flow coefficient
The relationship of force, pressure and piston area in an air cylinder is represented by ( )
force = (pressure) X (area)
The relationship of force, pressure, and piston area in an air cylinder is represented by
force = pressure x area
The wind blowing 15 MPH from the west is called
vector
Increasing a flowing liquids viscosity or friction, or changing flow direction, will result in
velocity increase
Use ___________ to measure an existing part and generate dimensions for a drawing
vernier caliper
Which of the following tests is nondestructive?
vibration analysis
Undercutting is a condition that generally occurs when the
welding current is too high
When storing gas cylinders, it is important that they be stored in
well ventilated areas