Olete.in – MCQs, Mock Tests & Government Job Prep | ITI ITI Basic Fitting

What is the definition of ‘tolerance’ in BIS system?

1. Difference between basic size & actual size
2. Algebraic difference between maximum limit & basic size
3. Difference between maximum limit & minimum limit
4. Algebraic difference between minimum limit & basic size

✅ Correct Answer: 3

Which type of fit is obtained if the hole is bigger than the shaft?

1. Tight fit
2. Transition fit
3. Clearance fit
4. Interference fit

✅ Correct Answer: 3

Which part of drill forms the cutting edge?

1. Body
2. Land
3. Point
4. Flutes

✅ Correct Answer: 4

How many fundamental deviations are in BIS system?

1. 12
2. 18
3. 20
4. 25

✅ Correct Answer: 4

What is the maximum limit size of dimension Dia. 25 (+0.003, -0.001)?

1. 25.003 mm
2. 25.001 mm
3. 24.997 mm
4. 24.999 mm

✅ Correct Answer: 1

What is an advantage of mass production?

1. Production rate is increased
2. Measuring time is increased
3. Jigs and fixtures are needed
4. Special purpose machines are needed

✅ Correct Answer: 1

What is the least count of Vernier height gauge?

1. 0.001 mm
2. 0.002 mm
3. 0.005 mm
4. 0.02 mm

✅ Correct Answer: 4

Why the tap drill size to be calculated?

1. To avoid drill breaking
2. To avoid material wastage
3. To calculate sufficient cutting speed
4. To maintain sufficient material to tap

✅ Correct Answer: 4

How we specify a Vernier height gauge?

1. Width of beam
2. Height of beam
3. Thickness of beam
4. Size of base

✅ Correct Answer: 2

What is the definition of fits?

1. Maximum size of a dimension
2. Minimum size of a dimension
3. Permissible deviation of a dimension
4. Relationship that exist between two mating parts

✅ Correct Answer: 4

What is the fundamental deviation of dimension Dia 25H7?

1. 7
2. H
3. H7
4. 25

✅ Correct Answer: 2

What is the name of the driving end which is fitted on the machine?

1. Lip
2. Heel
3. Flute
4. Shank

✅ Correct Answer: 4

What is mass production?

1. Producing work in pairs
2. Producing a work in single piece
3. Producing a work in large numbers
4. Producing a work in limited numbers

✅ Correct Answer: 3

What is the name of the operation for making holes on work piece?

1. Boring
2. Drilling
3. Reaming
4. Counter sinking

✅ Correct Answer: 2

What is the maximum size of the hole can be drilled by sensitive drilling machine?

1. 1.25 mm
2. 12.5 mm
3. 25 cm
4. 12.5 cm

✅ Correct Answer: 2

Which portion of drill the flutes are cut?

1. Body
2. Tang
3. Point
4. Shank

✅ Correct Answer: 1

How many grades of tolerances are represented in BIS system?

1. 12
2. 15
3. 18
4. 25

✅ Correct Answer: 3

What is the tolerance of dimension 30 (+0.02, -0.02)?

1. 30 mm
2. 0.04 mm
3. - 0.02 mm
4. + 0.02 mm

✅ Correct Answer: 2

. Which term used to indicate external dimension of a component in BIS system of limits & fits?

1. Hole
2. Shaft
3. Deviation
4. Tolerance

✅ Correct Answer: 2

What is mean by ‘upper deviation’ in BIS system of limits & fits?

1. Maximum size of a component
2. Minimum size of a component
3. Algebraic difference between maximum limit & minimum limit
4. Algebraic difference between maximum limit & basic size

✅ Correct Answer: 4

How many numbers are in metric tap set?

1. 1
2. 2
3. 3
4. 4

✅ Correct Answer: 4

Which fundamental deviation symbol indicate ‘Hole basis’ system?

1. h
2. H
3. P
4. j

✅ Correct Answer: 2

What is the name of the portion of a drill between the point and the shank?

1. Tang
2. Body
3. Land
4. Flute

✅ Correct Answer: 2

What is the formula to find tap drill size in general purpose?

1. Major diameter - pitch
2. Major diameter - (3 × pitch)
3. Major diameter - (2 × pitch)
4. Major diameter - (0.5 × pitch)

✅ Correct Answer: 1

Which fundamental deviation symbol indicates shaft basis system?

1. H
2. h
3. P
4. j

✅ Correct Answer: 2

What is meant by ‘Lower deviation’ in BIS system?

1. Algebraic difference between maximum limit and basic size
2. Algebraic difference between minimum limit and basic size
3. Algebraic difference between maximum limit and minimum limit
4. Algebraic difference between basic size and upper deviation

✅ Correct Answer: 2

What is the reason for using dial indicator instead of scriber point in Vernier height gauge?

1. To check eccentricity
2. For accurate marking
3. For accurate measuring
4. For good appearance

✅ Correct Answer: 1

What is term 'Basic size' indicate?

1. Minimum limit size of the work
2. Maximum limit size of the work
3. Size of the compound after it is manufactured
4. Size based on dimensional deviations are given

✅ Correct Answer: 4

Which size will represent the zero line in limit terminology?

1. Basic size
2. Actual size
3. Minimum size
4. Maximum size

✅ Correct Answer: 1

What is the minimum limit size of a dimension 50 (+0.03, -0.02)?

1. 50.03 mm
2. 50.02 mm
3. 49.97 mm
4. 49.98 mm

✅ Correct Answer: 4

Which way the coolant flows through the cutting edge in a drill?

1. Web
2. Land
3. Body
4. Flutes

✅ Correct Answer: 4

Which part of the drill carries the coolant to the cutting edge?

1. Lip
2. Land
3. Flute
4. Point

✅ Correct Answer: 3

What the is name of the cone shaped end of a drill?

1. Tang
2. Flute
3. Point
4. Margin

✅ Correct Answer: 3

Which term used to indicate external dimension of a component in BIS system of limits & fits?

1. Hole
2. Shaft
3. Deviation
4. Tolerance

✅ Correct Answer: 2

What is mean by ‘upper deviation’ in BIS system of limits & fits?

1. Maximum size of a component
2. Minimum size of a component
3. Algebraic difference between maximum limit & minimum limit
4. Algebraic difference between maximum limit & basic size

✅ Correct Answer: 4

How many numbers are in metric tap set?

1. 1
2. 2
3. 3
4. 4

✅ Correct Answer: 3

What is the name of the portion of a drill between the point and the shank?

1. Tang
2. Body
3. Land
4. Flute

✅ Correct Answer: 2

What is the reason for using dial indicator instead of scriber point in Vernier height gauge?

1. To check eccentricity
2. For accurate marking
3. For accurate measuring
4. For good appearance

✅ Correct Answer: 1

What is term 'Basic size' indicate?

1. Minimum limit size of the work
2. Maximum limit size of the work
3. Size of the compound after it is manufactured
4. Size based on dimensional deviations are given

✅ Correct Answer: 4

What is the minimum limit size of a dimension 50 (+0.03, -0.02)?

1. 50.03 mm
2. 50.02 mm
3. 49.98 mm
4. 49.98 mm

✅ Correct Answer: 4

Which way the coolant flows through the cutting edge in a drill?

1. Web
2. Land
3. Body
4. Flutes

✅ Correct Answer: 4

What mechanism is used to convert linear motion of plunger to rotary motion of pointer in D.T.I?

1. Back gear mechanism
2. Rack and pinion mechanism
3. Cam and follower mechanism
4. Worm and worm wheel mechanism

✅ Correct Answer: 2

How to express feed in drilling?

1. m/rev
2. m/min
3. mm/rev
4. mm/hour

✅ Correct Answer: 3

How does a lever type dial test indicator make the pointer rotation?

1. Back gear mechanism
2. Rack and pinion mechanism
3. Lever and scroll mechanism
4. Worm and worm wheel mechanism

✅ Correct Answer: 3

Which one of the following operation is used to bevel the mouth of a drilled hole?

1. Reaming
2. Spot facing
3. Counter boring
4. Counter sinking

✅ Correct Answer: 4

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?

1. 0.01 mm
2. 0.02 mm
3. 0.05 mm
4. 0.10 mm

✅ Correct Answer: 3

What is the angle of counter sink rivet head?

1. 75°
2. 80°
3. 90°
4. 120°

✅ Correct Answer: 1

Why the extreme care should be taken while handling Vernier caliper?

1. Measuring instrument
2. Indirect measuring instrument
3. Precision instrument
4. Semi precision instrument

✅ Correct Answer: 3

Which gap from spindle face is considered as the reading of outside micrometer?

1. Anvil
2. Frame
3. Barrel
4. Thimble

✅ Correct Answer: 1

How does the concentricity of shafts can be checked?

1. Using center gauge
2. Using Vernier caliper
3. Using combination set
4. Using dial test indicator

✅ Correct Answer: 4

🧪 ITI MCQ Quiz Hub

ITI Basic Fitting - Drilling Mcq