Iti fitter multiple choice questions limits and fits chapter

Iti fitter multiple choice questions limits and fits chapter


Iti fitter multiple choice questions limits and fits chapter important questions with answers For all types iti fitter competitive exams



1. The difference between the maximum and minimum size allowed in manufactured component is called 

(a) clearance     (b) allowance     (c) tolerance     (d) limit

(c) tolerance 

2. A dimension is stated as 25 ± 0.02mm in a drawing. What is the tolerance

(a) 25.00mm     (b) +0.02mm     (c) - 0.02mm     (d) 0.04mm

(d) 0.04mm

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

(a) tolerance system     (b) allowance system     (c) unilateral tolerance     (d) bilateral tolerance 

(c) unilateral tolerance

4. As per BIS system of limits and fits there are 18 grades of tolerance represented by number symbols from 

(a) IT01, IT1,....to IT16     (b) IT1.....to IT18    (c) IT0....to IT17     (d) IT01, IT0, IT1 to 16

(d) IT01, IT0, IT1 to 16



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5. Tolerance is given to the part size to

(a) increase the production     (b) decrease the production     (c) finish the component approximately     (d) produce the parts within the required permissible size error 

(d) produce the parts within the required permissible size error 

6. In hole basis system 

(a) the size of the shaft is made constant     (b) the size of the hole is made constant     (c) the permissible tolerance are given on the hole and the shaft     (d) allowance is given only on the hole

(b) the size of the hole is made constant 

7. Best example for shrinkage fit is

(a) cart rim on wooden rim     (b) tyre on the rail wheel     (c) tyre on the bicycle rim     (d) flywheel on the shaft 

(a) cart rim on wooden rim


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8. Best example for driving fit is 

(a) ball bearing on the shaft     (b) tyre on the rail wheel     (c) pulley with key on the shaft     (d) cart rim on the wooden wheel

(a) ball bearing on the shaft

9. Bilateral tolerance is fixed 

(a) on upper side of the basic size     (b) on lower side of the basic size     (c) on any one side of the basic size      (d) on both sides of the basic size

(d) on both sides of the basic size

10. Interchangeability is normally applied for

(a) repairing of parts     (b) mass production     (c) single piece production     (d) all the above 

(b) mass production


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

(a) clearance fit     (b) transition fit     (c) interference fit     (d) non of the above 

(c) interference fit

12. The measured size of the dimensions of a component is called 

(a) basic size     (b) normal size     (c) allowed size     (d) actual size

(d) actual size

13. In the BIS system of limits and fits the standard range of sizes covered are

(a) 0 to 500mm     (b) 25 to 400mm     (c) 0 to 100mm     (d) 0 to 10mm

(a) 0 to 500mm

14. In the BIS system of limits and fits, the grades of tolerance are represented by number and ther are

(a) 18 grades of tolerances     (b) 16 grades of tolerances     (c) 14 grades of tolerances     (d) 20 grades of tolerances

(a) 18 grades of tolerances

15. A hole whose lower deviation is zero is called basic hole. Basic hole indicates letters

(a) H   (b) G     (c) F     (d) 

(a) H

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