Sample Millwright Test 1 Flashcards
The Underwriters Laboratories of Canada defines a specific fire size and fuel type for each class of fire. True or false
True
The vernier height gauge is the most common precision layout tool. True or false
True
A dressing is used to compensate for uneven surfaces on the side of a grinding wheel. True or false
False
Soluble oils often have extreme pressure lubricants. True or false
False
The engine lathe is the least common of the lathe machine types. True or false.
False
Conventional milling must be used whenever there is a backlash eliminator in the milling machine table. True or false
False
Which of the following is a Class-C classification under WHMIS?
Oxidizing material
A welding curtain placed around a piece of equipment that is going to be welded should be located at least ____ centimeters above the floor to allow for good airflow.
20
Carbon dioxide extinguishers are generally ____ and have a larger nozzle.
red
If you are cutting within ______ inches from a sprinkler it should be shielded.
48
Which of the following is a Class-E classification under WHMIS?
Corrosive material
The following minimum and maximum readings were taken from a piece of equipment; 1.995” and 2.005”. The unilateral tolerance would be:
0.010”
Given the Tolerance Zone Symbol of “50 f 7” the “f” represents the:
fundamental deviation for external dimension
Dial indicators should be loaded to 1/8 to ____ of a turn before use.
1/4 inch
Place the following steps in the correct order to achieve proper use of a micrometer.
- close the micrometer on the workpiece with proper pressure
- check the micrometer for zero setting
- align the micrometer correctly with the workpiece
- clean the measuring faces
- clean the measuring faces
- check the micrometer for zero setting
- align the micrometer correctly with the workpiece
- close the micrometer on the workpiece with proper pressure
Which dial test indicator has a spindle that is mounted 90 degrees to the dial face?
back plunger
The number located above the fraction line is called the:
denominator
A cut-off saw has a fixed jaw that can be adjusted up to an angle of _____ degrees.
45°
Using the ISO metric thread form a bolt has the following designation: M8x1.5 - 6G. The 1.5 on the above designations represents the:
pitch
A prick punch has its point angle ground between ____ degrees.
30° to 60°
When referring to a power hacksaw blade the term blade width refer to the:
Distance from the tip of the tooth t the back of the blade.
Using the ISO metric thread form a bolt has the following designation: M8x1.5 - 6G. The M on the above designation represents the:
metric designator
Using the Unified Thread Series which Thread Series would best be suitable for an application where the volt length is very short and will be used in thin wall tubing?
Extra-fine
The type of abrasive grit used on an abrasive cut-off saw that is cutting non-ferrous material would be:
Silicon carbide
Threaded coil inserts are made of:
Stainless steel
A ____ washer is used in gas-tight joint such as compressor housing.
Belleville
The size rating of a bench vise is determined by its:
Jaw width
Which part of the welding unit on a band saw needs to be held until the annealing is over?
Welding switch
Bench grinders should have wheel guards that cover at least ______ of the wheel.
2/3
A fastener highest recommended tensile load is called:
Proof load
Using the imperial thread form a bolt has the following designation: 3/8 - 16 UNC x 1 1/4
The “3/8” on the above designation represents the:
Nominal size of thread
The inclined angle of contact between the internal threads of a nut and the external threads of a bolt are ____ degrees.
30
The tapering on a plug tap is approximately ___ threads.
3
What is a remedy for a broken or split web on a drill?
Grind more clearance.
Which drill is used for deep holes in softer metals like copper and zinc?
High helix drills
When climb milling the workpiece feeds ____ the rotation of the cutter.
with
What allows the millwright to select whether the carriage or cross slide moves under power when the automatic feed lever is engaged?
Feed change lever
Describe countersinking
Process of cutting a bevel at the top of the hole so the hole can accept the head of flat screw
On a milling machine what is the function of the longitudinal travers handle?
Moves the saddle toward or away from the column.
Describe forming tool
Used to cut intricate cylindrical profiles
Simple cut but weakens the shaft by creating a stress?
Square shoulder
When climb milling, the _____ end of the chip is at the beginning of the cut.
thick
What is the size of the large diameter of a taper when TR=1:30, d=60mm and TL=60mm?
62mm
The feed rate for a roughing cut should be _____ as the cutting tool and the machine can handle.
high
On a lathe what does the term “backlash” refer to?
The space between meshing gears
Describe cast alloy as a cutting material
Retain their hardness to a very high temperature also known as stellite
What is the process called where a raised pattern is pressed onto a surface?
Etching
Describe Jacobs Taper adapter
Fits a drill chuck to the spindle of a milling machine
When do you engage the split nut to achieve odd number of threads per inch, using a thread chasing dial on an imperial lathe?
Any main graduation
Cutting fluids must be able to resist temperatures in excess of _____ degrees Celsius.
600
Bearing life on a machine will decrease dramatically is misalignment exceeds _____ inch per inch of coupling length.
0.002
