🧪 ITI MCQ Quiz Hub

1. What is the definition of ‘tolerance’ in BIS system?
Difference between basic size & actual size
Algebraic difference between maximum limit & basic size
Difference between maximum limit & minimum limit
Algebraic difference between minimum limit & basic size

2. Which type of fit is obtained if the hole is bigger than the shaft?
Tight fit
Transition fit
Clearance fit
Interference fit

3. Which part of drill forms the cutting edge?
Body
Land
Point
Flutes

4. How many fundamental deviations are in BIS system?
12
18
20
25

5. What is the maximum limit size of dimension Dia. 25 (+0.003, -0.001)?
25.003 mm
25.001 mm
24.997 mm
24.999 mm

6. What is an advantage of mass production?
Production rate is increased
Measuring time is increased
Jigs and fixtures are needed
Special purpose machines are needed

7. What is the least count of Vernier height gauge?
0.001 mm
0.002 mm
0.005 mm
0.02 mm

8. Why the tap drill size to be calculated?
To avoid drill breaking
To avoid material wastage
To calculate sufficient cutting speed
To maintain sufficient material to tap

9. How we specify a Vernier height gauge?
Width of beam
Height of beam
Thickness of beam
Size of base

10. What is the definition of fits?
Maximum size of a dimension
Minimum size of a dimension
Permissible deviation of a dimension
Relationship that exist between two mating parts

11. What is the fundamental deviation of dimension Dia 25H7?
7
H
H7
25

12. What is the name of the driving end which is fitted on the machine?
Lip
Heel
Flute
Shank

13. What is mass production?
Producing work in pairs
Producing a work in single piece
Producing a work in large numbers
Producing a work in limited numbers

14. What is the name of the operation for making holes on work piece?
Boring
Drilling
Reaming
Counter sinking

15. What is the maximum size of the hole can be drilled by sensitive drilling machine?
1.25 mm
12.5 mm
25 cm
12.5 cm

16. Which portion of drill the flutes are cut?
Body
Tang
Point
Shank

17. How many grades of tolerances are represented in BIS system?
12
15
18
25

18. What is the tolerance of dimension 30 (+0.02, -0.02)?
30 mm
0.04 mm
- 0.02 mm
+ 0.02 mm

19. . Which term used to indicate external dimension of a component in BIS system of limits & fits?
Hole
Shaft
Deviation
Tolerance

20. What is mean by ‘upper deviation’ in BIS system of limits & fits?
Maximum size of a component
Minimum size of a component
Algebraic difference between maximum limit & minimum limit
Algebraic difference between maximum limit & basic size

21. How many numbers are in metric tap set?
1
2
3
4

22. Which fundamental deviation symbol indicate ‘Hole basis’ system?
h
H
P
j

23. What is the name of the portion of a drill between the point and the shank?
Tang
Body
Land
Flute

24. What is the formula to find tap drill size in general purpose?
Major diameter - pitch
Major diameter - (3 × pitch)
Major diameter - (2 × pitch)
Major diameter - (0.5 × pitch)

25. Which fundamental deviation symbol indicates shaft basis system?
H
h
P
j

26. What is meant by ‘Lower deviation’ in BIS system?
Algebraic difference between maximum limit and basic size
Algebraic difference between minimum limit and basic size
Algebraic difference between maximum limit and minimum limit
Algebraic difference between basic size and upper deviation

27. What is the reason for using dial indicator instead of scriber point in Vernier height gauge?
To check eccentricity
For accurate marking
For accurate measuring
For good appearance

28. What is term 'Basic size' indicate?
Minimum limit size of the work
Maximum limit size of the work
Size of the compound after it is manufactured
Size based on dimensional deviations are given

29. Which size will represent the zero line in limit terminology?
Basic size
Actual size
Minimum size
Maximum size

30. What is the minimum limit size of a dimension 50 (+0.03, -0.02)?
50.03 mm
50.02 mm
49.97 mm
49.98 mm

31. Which way the coolant flows through the cutting edge in a drill?
Web
Land
Body
Flutes

32. Which part of the drill carries the coolant to the cutting edge?
Lip
Land
Flute
Point

33. What the is name of the cone shaped end of a drill?
Tang
Flute
Point
Margin

34. Which term used to indicate external dimension of a component in BIS system of limits & fits?
Hole
Shaft
Deviation
Tolerance

35. What is mean by ‘upper deviation’ in BIS system of limits & fits?
Maximum size of a component
Minimum size of a component
Algebraic difference between maximum limit & minimum limit
Algebraic difference between maximum limit & basic size

36. How many numbers are in metric tap set?
1
2
3
4

37. What is the name of the portion of a drill between the point and the shank?
Tang
Body
Land
Flute

38. What is the reason for using dial indicator instead of scriber point in Vernier height gauge?
To check eccentricity
For accurate marking
For accurate measuring
For good appearance

39. What is term 'Basic size' indicate?
Minimum limit size of the work
Maximum limit size of the work
Size of the compound after it is manufactured
Size based on dimensional deviations are given

40. What is the minimum limit size of a dimension 50 (+0.03, -0.02)?
50.03 mm
50.02 mm
49.98 mm
49.98 mm

41. Which way the coolant flows through the cutting edge in a drill?
Web
Land
Body
Flutes

42. What mechanism is used to convert linear motion of plunger to rotary motion of pointer in D.T.I?
Back gear mechanism
Rack and pinion mechanism
Cam and follower mechanism
Worm and worm wheel mechanism

43. How to express feed in drilling?
m/rev
m/min
mm/rev
mm/hour

44. How does a lever type dial test indicator make the pointer rotation?
Back gear mechanism
Rack and pinion mechanism
Lever and scroll mechanism
Worm and worm wheel mechanism

45. Which one of the following operation is used to bevel the mouth of a drilled hole?
Reaming
Spot facing
Counter boring
Counter sinking

46. What is the least count of a Vernier caliper if 19 main scale divisions (19 mm) are divided into 20 equal parts in the Vernier scale?
0.01 mm
0.02 mm
0.05 mm
0.10 mm

47. What is the angle of counter sink rivet head?
75°
80°
90°
120°

48. Why the extreme care should be taken while handling Vernier caliper?
Measuring instrument
Indirect measuring instrument
Precision instrument
Semi precision instrument

49. Which gap from spindle face is considered as the reading of outside micrometer?
Anvil
Frame
Barrel
Thimble

50. How does the concentricity of shafts can be checked?
Using center gauge
Using Vernier caliper
Using combination set
Using dial test indicator