Measurement, part A and Part B

Question 1

3 types of units of measurement in 🇨🇦?

Answer 1

• metric (millimetres [mm])
• Imperial-decimal (0.0004 inch)
• imperial-fraction (1/64 inch)

Question 2

__________ refers to an imperial standard size which is used for purpose of general identification.

Answer 2

nominal size

Question 3

Definition of actual size ?

Answer 3

The measured size of component is the actual(measured) size or dimension.

Question 4

__________ is the theoretical size to which the tolerance are applied.

Answer 4

Basic Size

Question 5

_______ are the largest(upper limit) size and smallest(lower limit) size a part can be and still be acceptable.

Answer 5

Limit of Size

Question 6

MMC and LMC stands for ?

Answer 6

Maximum Material Condition and Least Material Condition

Question 7

________ is where both mating parts have the most mass(metal),

Answer 7

Maximum Material Condition (MMC)

Question 8

_________ is the total of variation permitted is the size of duplicate parts.

Answer 8

Tolerance

Question 9

What are the 2 types of tolerance ?

Answer 9

• Unilateral Tolerance

- Bilateral Tolerance

Question 10

_______ is in one direction only from basic size and there is no Variation (Zero) in the other direction.

Answer 10

Unilateral Tolerance

Question 11

________ is in both direction ( equally or unequal ) from basic size.

Answer 11

Bilateral Tolerance

Question 12

In the ____________ method, only the maximum and minute mum dimension of the man part are specified.

Answer 12

limit dimension

Question 13

_____ is the intentional difference between 2 mating parts at MMC.

Answer 13

Allowance

Question 14

Positive allowance, the hole is ________ than the shaft while Negative Allowance is ________ the the shaft.

Answer 14

Larger And Smaller

Question 15

The term of _____ describes the tightness or looseness between two mating parts.

Answer 15

Fit

Question 16

3 types of fit

Answer 16

• Interference Fit ( Allowance is Negative)
• Clearance Fit ( Allowance is positive)
• Transition Fit ( Negative Allowance but the total tolerances exceed the allowance)

Question 17

Factors that can affect design tolerance of the mating parts include:

Answer 17

• Load
• Temperature
• Lubrication
• Metal Type

Question 18

2 types of fit system

Answer 18

Hole and Shaft Basis System

Question 19

3 types Basic measurement

Answer 19

the Part
the Measuring Device
a Standard( device to measure against)