Practice Test: Question Set - 01
1. A dimension is stated as 25 +/-0.02 mm in a drawing. What is the tolerance?
- (A) 25.00 mm
- (B) +0.02 mm
- (C) -0.02 mm
- (D) 0.04 mm
2. 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 (upper and lower) of the basic size
3. The size of a component is given as 24 -0.1. What does -0.1 indicate?
- (A) Upper
deviation is +0.1 mm
- (B) Lower
deviation is 0.0 mm
- (C) Fundamental
deviation is 0.0 mm
- (D) Lower
deviation is -0.1 mm
4. The tolerance of a hole is the difference between the
- (A) Maximum hole
size and maximum shaft size
- (B) Maximum hole
size and minimum hole size
- (C) Maximum hole
size and maximum shaft size
- (D) Maximum hole
size and minimum shaft size
5. The first step of quality control is the product specification. On whose opinion is the product specification based?
- (A) Marketing
department
- (B) Consumer /
user
- (C) Sales department
- (D) Servicing
department
6. In the BIS system of limits and fits, the grades of tolerance are represented by numbers, and they are
- (A) 18 grades of
tolerances
- (B) 16 grades of
tolerances
- (C) 14 grades of
tolerances
- (D) 20 grades of
tolerances
7. If the dimension of a component is finished within the limits of size, then it will be-
- (A) Minimum size
- (B) Basic size
- (C) Acceptable
size
- (D) Rejected
size
8. 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
9. A dimension is stated as Dia 25 H7 in a drawing. The lower limit is?
- (A) 24.75 mm
- (B) 24.85 mm
- (C) 25.00 mm
- (D) 25.021 mm
10. In hole basic system
- (A) The size of
the shaft is made constant
- (B) The size of
the hole is made constant
- (C) The
permissible tolerances are given on the hole and the shaft
- (D) Allowance is
given only on the hole
11. In the assemblies obtained by using the system of Limits and fits, the damaged parts
- (A) Cannot be
replaced
- (B) Are required
to be scrapped
- (C) May be
easily replaced without rejection the assembly
- (D) Have to be
made with new tolerance
12. Which one of the following statements is correct?
- (A) Interchangeability
of parts may be obtained by adopting the system of Limits and fits
- (B) The BIS
system of limits and fits does not give the desired fit
- (C) Interference
fit is always designed with a positive clearance
- (D) Transition
fit is always specified with a negative clearance
13. Which one among the following is the correct statement?
- (A) A clearance
fit always provides interference
- (B) An
interference fit always provides clearance
- (C) An
interference fit may sometime provide clearance and sometime interference
- (D) A transition
fit may sometime provide clearance and sometime interference
14. Limits of 50 mm hole is ES = +0.025 and EI = +0.002 mm. The maximum and minimum hole sizes will be:
- (A) Max. 50.02
mm; Min. 49.998 mm
- (B) Max. 50.025
mm; Min. 50.002 mm
- (C) Max. 49.998
mm; Min. 50.002 mm
- (D) Max. 49.990
mm; Min. 49.975 mm
15. A pin is fitted in a hole. The tolerance zone of the pin is entirely above of that hole. The fit obtained will be
- (A) Clearance
fit
- (B) Transition
fit
- (C) Interference
fit
- (D) None of the
above
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