GT & T QUIZ

Question 1

what does RFS mean

Answer 1

regardless of feature size.

Question 2

datum A is used for?

Answer 2

largest mating surface.

Question 3

What does position control?

Answer 3

features of size

Question 4

What does location control?

Answer 4

Features without size

Question 5

what is MMC used for

Answer 5

It is used for clearance holes.

Question 6

What does DRF mean

Answer 6

datum reference frame.

Question 7

what is in the first box

Answer 7

characteristic symbol

Question 8

what is first in the second box

Answer 8

shape of tolerance zone.

Question 9

datum feature is?

Answer 9

the part itself.

Question 10

datum plane is?

Answer 10

The imaginary plane that sits on the surface.

Question 11

T or F

Rule #1 requires perfect form of a feature at LMC

Answer 11

F

it requires perfect form at MMC

Question 12

T or F

Form tolerances always use datums

Answer 12

F

Question 13

T or F

The tolerance in the feature control fame is always a total tolerance and never a plus/minus value.

Answer 13

T

Question 14

T or F

Feature modifiers can only be used with features of size

Answer 14

T

Question 15

T or F

Limits of size do not control the orientation relationship between individual features on a part.

Answer 15

T

rule #1 no relation between features.

Question 16

If a MMC modifier appears in a feature control frame, the size of the tolerance zone will increase by the same amount as the hole gets smaller and smaller.

Answer 16

F

the hole would get bigger and bigger.

Question 17

DRF is the abbreviation for datum reference feature.

Answer 17

F

Datum Reference Frame

Question 18

Position tolerance is used to locate features of size and without size?

Answer 18

F

it only controls features of size

Question 19

when LMC or MMC is applied to a hole pattern, each hole may have a different position tolerance depending on the actual size of each hole.

Answer 19

T

Question 20

what is the latest AMERICAN national standard on dimensioning and tolerancing.

Answer 20

ASME Y14.5-2009

Question 21

which of the following is NOT a feature?
pin
hole
slot
surface
axis
tab

Answer 21

axis

a feature is sometnig you can grab

Question 22

which 2 of the flowing are NOT features of size. 
hole
2 opposed surfaces 
individual surface 
2 unopposed surfaces 
spherical surface 
cylindrical surface

Answer 22

2 unopposed surfaces

individual surface

Question 23

what is found in the first compartment of a feature control frame.

Answer 23

Geometric Characteristic

Question 24

what is used to cualify a primary datum

Answer 24

flatness.

Question 25

The establishment of a datum reference frame on a part:

Answer 25

Determines location of the origin on the part.

Question 26

sequence to applying Geometric Tolerancing

Answer 26

Establish and qualify a DRF, qualify the features to the DRF, and relate the features to the DRF.

Question 27

Title block tolerances ever apply to _____ dimensions.

Answer 27

Basic

Question 28

A ______ modifier is typically used for press fit applications.

Answer 28

RFS

Question 29

A _____ modifier is typically used for minimum wall thickness applications.

Answer 29

LMC

Question 30

A _____ modifier is typically used for clearance applications.

Answer 30

MMC

Question 31

Allowance is defined as the difference between _____ of mating parts.

Answer 31

MMC

Question 32

Define rule #1

Answer 32

Defines the size and form limits for regular features. It requires perfect form at MMC. No relations between features.

Question 33

what is the method of determining primary, secondary, and tertiary datums?

Answer 33

Largest mating surface.

Question 34

based on your knowledge so far, what are the 2 strongest characteristics symbols we can use?

Answer 34

position and profile of a surface.

Question 35

what is virtual size

Answer 35

virtual size is the largest pin that can fit into the worst case hole.

Question 36

how do you calculate virtual size of a hole at MMC?

Answer 36

take the MMC of a hole and subtract the position tolerance from it.

Question 37

The datum feature is?

Answer 37

The part itself.

Question 38

datum feature simulator

Answer 38

The measuring tool used to measure the datum, like a plate

Question 39

RMB means?

Answer 39

Regardless of material boundary.

Question 40

when pointing to a diameter where is the datum.

Answer 40

the datum is the axis.

Question 41

when a datum is qualified in line with a dimension, where is the datum.

Answer 41

the datum is the center plane of the feature.

Question 42

what happens when a hole pattern is a datum.

Answer 42

two planes are created and a cmm or special fixture is required to inspect.

Question 43

How many translations and rotations does a plane constrain.

Answer 43

One translation and two rotations.