Practice Test: Question Set - 02
1. Interchangeability is normally applied for
- (A) Repairing of
parts
- (B) Mass
production
- (C) Single piece
production
- (D) All the
above
2. The difference between the maximum and minimum sizes allowed in manufactured components is called:
- (A) Clearance
- (B) Allowance
- (C) Tolerance
- (D) Limit
3. The measured size of the dimension of a component is called
- (A) Basic size
- (B) Normal size
- (C) Allowed size
- (D) Actual size
4. Best example for shrinkage fit is
- (A) Cart rim on
the wooden wheel
- (B) Tyre on the
rail wheel
- (C) Tyre on the
bicycle rim
- (D) Flywheel on
the shaft
5. Threaded components both external and internal are manufactured with thread tolerance. One of the reasons for having thread tolerances is to
- (A) Ensue
interchangeability of threaded parts
- (B) Identify and
group up threaded assemblies by labeling
- (C) Determine
the percentage of thread of both bolt and nut
- (D) Obtain
qualitative surface finish
6. British standard limit system consists of
- (A) 21 classes
of fits and 16 grades of tolerances
- (B) 12 classes
of fits and 61 grades of tolerances
- (C) 16 classes
of fits and 21 grades of tolerances
- (D) 61 classes
of fits and 12 grades of tolerances
7. Tolerance is given to the part size to
- (A) Increase the
production
- (B) Decrease the
production
- (C) Finish the
components approximately
- (D) Produce the
parts within the required permissible size error
8. As per BIS system of Limits and fits, there are 18 grades of tolerances represented by number symbols, from
- (A) IT01, IT1
... to IT16
- (B) IT1 ... to
IT18
- (C) IT01... to
IT17
- (D) IT01, IT0,
IT1 to 16
9. 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
10. In the BIS system of limits and fits the standard range of sizes ‘covered’ is
- (A) 0 to 500 mm
- (B) 25 to 400 mm
- (C) 0 to 100 mm
- (D) 0 to 10 mm
11. A hole whose lower deviation is zero is called basic hole. Which one of the following letters indicates basic hole?
- (A) E
- (B) F
- (C) G
- (D) H
12. In the BIS system of limits and fits, 25 hole deviations are specified by using
- (A) Small
letters
- (B) Capital
letters
- (C) Small
letters with tolerance
- (D) Small
letters with numbers
13. Mass-produced components should be interchangeable. Which one of the following is the most important factor required to achieve the interchangeability in mass production?
- (A) Dimensional
accuracy
- (B) Standardization
- (C) Geometrical
accuracy
- (D) Surface
finish
14. The three classes of fits as per BIS system are
- (A) Clearance
fit, transition fit and Interference fit
- (B) Medium fit,
push fit and tight fit
- (C) Flat fit,
round fit and square fit
- (D) Sliding fit,
loose fit and shrinkage fit
15. Under the terminology of the IS system of limits the term 'tolerance' is defined as the difference between the
- (A) Maximum
limit and the basic size
- (B) Minimum
limit and the basic size
- (C) Maximum
limit and minimum limit
- (D) Actual size
and basic size
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