allowance and tolerances

Question 1

defined as the difference between the upper and lower limit on the dimension of a part

Answer 1

tolerance

Question 2

the difference the dimension of the two mating parts or the difference between the smallest hole and greatest shaft

Answer 2

allowance

Question 3

minimum hole size - maximum shaft size

Answer 3

allowance

Question 4

defined as the stated permissible variation of the size of a dimension.

Answer 4

tolerance

Question 5

If there is no fit, the liberal tolerance of ____ in or _____ in machining work could be permitted.

Answer 5

positive or negative 0.010 inches or positive or negative 1/64 in

Question 6

the size of the part is permitted to be either larger or smaller than the given dimension

Answer 6

bilateral

Question 7

the size of the part maybe larger only, or smaller only, than the given dimension

Answer 7

unilateral

Question 8

the relationships existing between two parts which are to be assembled with respet to the difference in their sizes before assembly

Answer 8

FITS

Question 9

degree of tightness or looseness between two mating parts

Answer 9

FITS

Question 10

What are the three types of fits?

Answer 10

clearance fits or running and sliding fits, interference fits, transition fits

Question 11

positive difference between the size of the hole and the shaft allowing relative movement between them

Answer 11

clearance fits, tunning fits, sliding fits,

Question 12

close-sliding fits

Answer 12

RC1

Question 13

sliding fits

Answer 13

RC2

Question 14

precision-running fits

Answer 14

RC3

Question 15

close-running fits

Answer 15

RC4

Question 16

medium-running fits

Answer 16

RC5 and RC6f

Question 17

free-running fits

Answer 17

RC7

Question 18

loose-running fits

Answer 18

RC8 AND RC9

Question 19

light drive fits

Answer 19

FN1

Question 20

medium drive fits

Answer 20

FN2

Question 21

for heavy drive fits

Answer 21

FN3

Question 22

for force fits

Answer 22

FN4 nad FN5