Exam Bank / Pt.2

Question 1

Which of the following is in a class D division 2 in Whimis?

a) Dangerous Reactive Material
b) Poisonous and Infectious material with other toxic effects

Answer 1

b) Poisonous and Infectious materiall with other toxic effects

Question 2

When referring to common CNC programming structures a STATUS BLOCK is?

a) The first block of program code that sets the conditions for the program
b) A program block that gives feedback to the operator

Answer 2

a) The first block of program code that sets the conditons for the program.

Question 3

What type of square would be used to check the squareness of cavities and openings?

Answer 3

• Die Square makers

Question 4

When fibre rope is hitched the strength of the rope is reduced by?

Answer 4

• 25%

Question 5

When referring to common CNC Programming structures which of the following is an example of a CNC preparator code?

a) G09
b) M04
c) T05
d) S1500

Answer 5

• G09

( Exact check Stop - Non-modal )

Question 6

The steel ruler that has graduations on one edge only is the…?

Answer 6

• Narrow Rule

Question 7

The most popular synthetic rope in industrial use is…?

Answer 7

• Polypropylene

Question 8

When changing the blade on a hacksaw it should be installed so the cutting edge takes place on the ______ stroke.

Answer 8

• Push

Question 9

With machine screws each number size increases the major diameter by ___ inch.

a) .013”
b) .042”
c) .060”
d) .073”

Answer 9

• .013 “

Question 10

Most manufactureres agree that the ideal hydraulic reservoir size should be between 2 and ____ times the amount of oil the pump can move in one minute.

Answer 10

• 3 times

Question 11

When completing graduations, what should be the included angle be?

Answer 11

• 60 degrees

Question 12

In an indexing machine with a compound gear train, how many idlers are required for a positive rotation?

Answer 12

• 2 idlers.

Question 13

Using the ANSI system of grading carbides which of the following would be used for producing a finishing grade on cast iron?

Answer 13

• c3

Question 14

Which of the following would be a reason to cut a groove in a workpiece?

a) Relieve strain at the shoulder
b) To allow a nut to tighten against a shoulder
c) To provide a seat for an o-ring
d) All of the above

Answer 14

d) All of the above

Question 15

On a wide range dividing head turning the small crank, one complete turn will rotate the large crank by how much?

Answer 15

• 1/100 of a turn

Question 16

Which of the following is best describes a micro set adjustable center?

a) It uses an eccentric or dovetail
b) It turns with the headstock spindle

Answer 16

• a) It uses an eccentric or dovetail

Question 17

How is pressure calculated?

Answer 17

• Force / Area

Question 18

When looking at a face milling cutter the angle between the face of the insert and the radius of the cutter is called?

Answer 18

• Radial rake angle.

Question 19

What type of material is used to make bearings that are used on low speeds and light loads and requires large clearances?

Answer 19

• Cast Iron

Question 20

Which part of a vertical boring mill serves the same purpose as the cross slide of a lathe?

Answer 20

• The saddle

Question 21

Which type of contact used between a worm and a worm gear is the weakest type of drive?

a) Plain ( point contact )
b) Single enveloping ( line contact )

Answer 21

• Single enveloping ( line contact )

Question 22

On a standard two axis machine with a programmable tailstock the _____- axis is used to identify the tailstock movement.

Answer 22

• Z-axis

Question 23

Which of the following is true with respects to hydraulic systems?

a) Power can be transmitted efficiently
b) The fluid is not flammable

Answer 23

a) Power can be transmitted efficiently

Question 24

What is the largest diameter a machine screw available?

Answer 24

• 1 inch

Question 25

What type of key would be used in a 8 inch shaft?

a) Square
b) Flat

Answer 25

• Flat

( Anything over 5 inches uses a flat key )

Question 26

Which metal has the highest melting point?

a) Tungsten
b) Copper
c) Nickel
d) Titanium

Answer 26

• Tungsten

Question 27

Which of the following best describes a curved tooth file?

a) Used on soft metal like copper, aluminium, babbit and lead.
b) they are used to produce smoothe finish

Answer 27

• a) Used on soft metal like copper, aluminium, babbit and lead.

Question 28

Which of the following is true with respect to brown and sharpe worm threads?

Answer 28

• It has a 29 degree angle with a very narrow root and crest.

Question 29

The part of a hand held tap that does most of the cutting is the?

Answer 29

• Chamfer

Question 30

What is the term used to describe how much pull a metal can take without breaking?

Answer 30

• Tensile hardness

Question 31

What type of chisel is used to cut oil grooves in the journal bearings?

Answer 31

• Round nose

Question 32

What is the main difference between rotary files and rotary burrs?

Answer 32

• The cutting tooth line is broken

Question 33

Which of the following best describes the lip clearance?

a) It is provided by grinding the heel lower than the cutting edge
b) It extends from the chiseled edge to the margin

Answer 33

a) It is provided by grinding the heel lower than the cutting edge

Question 34

What principal of measurement does a rotary encoder use?

Answer 34

• Indirect

Question 35

Back rake angles are ground to the ____ of the tool

Answer 35

• Face

Question 36

What is the process of imparting a contour to a wheel face called?

Answer 36

• Crush dressing.

Question 37

What is zero supression?

Answer 37

• Allows dimensions to be written without zeros after a decimal point.