1. Which among the following is the correct statement ?

a clearance fit always provides interference

a interference fit always provides clearance

an interference fit may some time provide clearance and sometime interference

a transition fit may some time provide clearance and some time interference

Answer: a transition fit may some time provide clearance and some time interference

Explanation:


2. In transition fit size of shaft ________ hole size ?

is more than

is less than

is equal to

can be more or less than

Answer: can be more or less than

Explanation:


3. A pin is fitted in a hole. The tolerance zone of the pin is entirely above that of hole. The fit obtained will be ?

clearance fit

transition fit

interference fit

none of the above

Answer: interference fit

Explanation:


4. Tolerance is given to the part size to ?

increase the production

decrease the production

finish the components approximately

produce the parts within the required permissible size error

Answer: produce the parts within the required permissible size error

Explanation:


5. Threaded component both external and internal are manufactured with thread tolerance. One of the reasons for having thread tolerance is to ?

ensure interchangeability of threaded parts

identify and group up threaded assemblies by labelling

determine the percentage of thread of both bolt and nut

obtain qualitative surface finish

Answer: ensure interchangeability of threaded parts

Explanation:


6. A shaft whose upper division is zero is called shaft basis, which one of the following letters indicates basic shaft ?

E

h

G

H

Answer: h

Explanation:


7. In interference fit size of shat is _________ than hole size ?

small

greater

equal

none of the above

Answer: greater

Explanation:


8. When tolerance is given on one side of the basic dimension, it is called ?

tolerance system

allowance system

unilateral

bilateral tolerance

Answer: unilateral

Explanation:


9. What is the advantages of mass production ?

Cost and time reduced for manufacturing

Initial expenditure is low

Jigs and fixture are not needed

Special purpose machines are not necessary

Answer: Cost and time reduced for manufacturing

Explanation:


10. In a ________________ the minimum permissible diameter of the shaft is larger than the maximum allowable diameter of hole ?

clearance fit

transition fit

interference fit

slide fit

Answer: interference fit

Explanation: