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Worksheetsmetrology
Total questions: 153
Worksheet time: 1hrs 17mins
Name
Class
Date
1.
The major load used in rockwell C hardness test is
a)
100kg
b)
200kg
c)
150kg
d)
60kg
2.
The major load used in rockwell B hardness test is
a)
100kg
b)
200kg
c)
150kg
d)
60kg
3.
The indentor used in rockwell B hardness test is
a)
Diamond pyramid
b)
Diamond cone
c)
Hardened steel ball
d)
Diamond ball
4.
The indentor used in rockwell C hardness test is
a)
Diamond pyramid
b)
Diamond cone
c)
Hardened steel ball
d)
Diamond ball
5.
When two light waves are combined, in such a way that the crest of one coincides with the trough of the other, they are out of phase by
a)
360 ͦ
b)
90 ͦ
c)
180 ͦ
d)
270 ͦ
6.
When two light waves are out of phases by 180 the result will be
a)
troughs coincide
b)
double magnitude
c)
darkness
d)
crests coincide
7.
A ray having single frequency and wavelength produces
a)
monochromatic light
b)
ordinary light
c)
bright band
d)
dark band
8.
If both the waves having same amplitude are in phase the resultant intensity will be
a)
twice
b)
zero
c)
one
d)
none
9.
If both the waves having same amplitude are out of phase the resultant intensity will be
a)
twice
b)
zero
c)
one
d)
none
10.
If the path difference between the reflected rays is odd multiple of half wave length, _______ band will be observed
a)
bright
b)
dark
c)
nil
d)
colour
11.
If the path difference between the reflected rays is even multiple of half wave length, _______ will be observed
a)
bright
b)
dark
c)
nil
d)
colour
12.
The light source not used for checking with optical flat is
a)
neon
b)
cadmium
c)
sunlight
d)
mercury
13.
If the angle between the optical flat and work is too large then fringes
a)
will be closely spaced
b)
spacing will be more
c)
will be straight
d)
will be curved
14.
Optical flat of type A has
a)
single flat working surface
b)
both working surface flat
c)
has all surfaces flat
d)
none
15.
Optical flat of type B has
a)
single flat working surface
b)
both working surface flat
c)
has all surfaces flat
d)
none
16.
While checking flatness with optical flat each fringe constitutes
a)
two bright & one dark band
b)
one bright & one dark band
c)
two bright & two dark band
d)
one bright & two dark band
17.
A series of alternate bright and dark bands produced by optical flats are known as
a)
interference bands
b)
colour bands
c)
ordinary band
d)
monochromatic band
18.
If the angle between the optical flat and work is too less then fringes
a)
will be closely spaced
b)
spacing will be more
c)
will be straight
d)
will be curved
19.
The instrument used to check the length of a slip gauge is
a)
autocollimator
b)
interferometer
c)
dial indicaot
d)
optical flat
20.
Straightness of a lathe bed is checked by
a)
straight edge
b)
autocollimator
c)
surface plate
d)
dial indicator
21.
Surface can be considered to be composed of an infinitely large
a)
number of points
b)
number of lines
c)
number of high points
d)
number of circles
22.
Preloading is given to dial indicator
a)
for the easy movement
b)
to find positive & neagtive deviation
c)
to protect the indicator
d)
to measure accurately
23.
In a plunger type dial indicator the movement of the spindle is transferred through
a)
worm & worm wheel
b)
rack & pinion
c)
level attachment
d)
thread
24.
While using a plunger type dial indicator, plunger should be set
a)
90 ͦto the surface
b)
at 15 ͦto the surface
c)
parallel to the surface being checked
d)
at asmall angle to the surface
25.
Error on perpendicularity can be checked with
a)
clinometer
b)
profilometer
c)
spirit level
d)
autocollimator
26.
An autocollimator is used to check error on
a)
parallelism
b)
roundness
c)
perpendicualrity
d)
cylindricty
27.
Lobing is an error that occurs on
a)
cylindricity
b)
runout
c)
circularity
d)
total runout
28.
Roundness of a work is checked accurately by
a)
Talysurf
b)
dial indicator
c)
talyrond
d)
micrometer
29.
For measuring the roundness, we determine the error on
a)
cylindricity
b)
runout
c)
circularity
d)
total runout
30.
Run out of an exactly round component is equal to
a)
radial throw of the axis
b)
twice the radial throw of the axis
c)
half of the radial throw of the axis
d)
thrice the raidal throw of the axis
31.
Angle of a V-groove can be found out using a height gauge and
a)
two rollers of same diameter
b)
two rollers of different diameter
c)
one roller
d)
three rollerss
32.
Angle of a tapered hole can be found out using a height gauge, depth gauge and
a)
two rollers of same diameter
b)
two rollers of different diameter
c)
one roller
d)
three rollerss
33.
A gear tooth vernier caliper is used to check gear tooth thickness at
a)
addendum circle
b)
base circle
c)
pitch circle
d)
dedendum circle
34.
The pattern of the work surface caused by the movement of the cutting tool is known as
a)
Surface texture
b)
roughness
c)
roughness spacing
d)
waviness
35.
The direction of pre-dominant surface pattern on a surface is called
a)
primary texture
b)
secondary texture
c)
waviness
d)
lay
36.
Surface texture includes
a)
roughness
b)
waviness
c)
both
d)
none
37.
Surface finish is measured
a)
parallel to the direction of lay
b)
at an angle to the direction of lay
c)
perpendicular to the direction of lay
d)
not with reference to lay
38.
In surface texture measurement, the length of the profile necessary for the evaluation of the irregularities is
a)
mean length
b)
sampling length
c)
profile length
d)
maximum length
39.
One of the causes for secondary texture is
a)
production process used
b)
direction of tool marks
c)
flaws in the material
d)
vibration of work
40.
One of the methods used in surface inspection by comparison is
a)
inspection by tomlinson
b)
use of straight edge
c)
inspection by profilometer
d)
microscopic inspection
41.
In Surface texture measurement by direct instrument method, the moving part which provides a datum is
a)
stylus
b)
recorder
c)
amplifier
d)
skid
42.
Primary texture is caused by
a)
production process used
b)
hard spots on the work
c)
waviness
d)
vibration of work
43.
Profilometer is an instrument used to measure
a)
gear profile
b)
thread profile
c)
surface roughness
d)
taper
44.
A Tomlinson surface meter is
a)
an elctronic instrument
b)
a mechanical instrument
c)
an electrical instrument
d)
a pnuematic instrument
45.
A Talysurf is used to check
a)
flatness
b)
surface texture
c)
straightness
d)
perpendicularity
46.
A Talysurf is associated with
a)
surface flatness
b)
surface texture
c)
surface perpendicularity
d)
surface curvature
47.
The instrument which uses carrier modulation principle is
a)
talyrond
b)
tomlinson
c)
profilometer
d)
talysurf
48.
A Talysurf is
a)
an elctronic instrument
b)
a mechanical instrument
c)
an electrical instrument
d)
a pnuematic instrument
49.
The symbol ‘ei’ in Indian standard denotes
a)
upper limit
b)
lower limit
c)
upper deviation
d)
lower deviation
50.
Actual size is
a)
nominal size
b)
size given in the drawing
c)
measured size
d)
size in relation to which deviations are given
51.
Difference between upper limit and lower limit is called
a)
Limits
b)
tolerance
c)
allowance
d)
deviation
52.
Maximum permissible size of a dimension is
a)
upper deviation
b)
lower limit
c)
upper limit
d)
lower deviation
53.
Algebraic difference between upper and lower deviation is
a)
Limits
b)
tolerance
c)
allowance
d)
fundamental deviation
54.
The symbol ‘ES’ in Indian standard denotes
a)
upper limit
b)
lower limit
c)
upper deviation
d)
lower deviation
55.
In graphical representation of limits and fits, zero line represents
a)
basic size
b)
tolerance zone
c)
actual size
d)
lower deviation
56.
H7/m6 fit provides
a)
clearance fit
b)
interference fit
c)
transition fit
d)
loose running fit
57.
In Indian standard, fundamental deviation is designated by
a)
numbers
b)
letters
c)
numbers and letters
d)
symbols
58.
Lower deviation of a hole is denoted in Indian standard by the symbol
a)
ES
b)
ei
c)
es
d)
EI
59.
Example of a clearance fit is
a)
H7/k6
b)
H7/r6
c)
H7/f6
d)
H7/n6
60.
size in relation to which deviations are given is
a)
actual size
b)
nominal size
c)
limit size
d)
basic size
61.
For the fundamental deviation ‘h’
a)
es will be zero
b)
upper limit will be zero
c)
lower limit will be zero
d)
ei will be zero
62.
Types of tolerance grades specified by Indian standard is
a)
18
b)
25
c)
16
d)
20
63.
Minimum permissible size of a dimension is
a)
upper deviation
b)
lower limit
c)
upper limit
d)
lower deviation
64.
The parts of one type are classified into several groups according to size in
a)
interchangeable system
b)
shaft basis system
c)
selective assembly
d)
hole basis system
65.
In a hole basis system
a)
hole is a constant member
b)
both hole and shaft are constant members
c)
shaft is a constant member
d)
upper deviation of a hole is zero
66.
‘No Go’ limit corresponds to
a)
upper limit of shaft
b)
maximum material condition
c)
lower limit of hole
d)
minimum material condition
67.
In Indian standard tolerance grade is designated by
a)
numbers
b)
letters
c)
Greek alphabets
d)
symbols
68.
A comparator is used to find
a)
dimensional difference
b)
actual value of measurement
c)
flatness difference
d)
perpendicularity
69.
Main advantage of a reed type comparator is that it
a)
has no pointer
b)
works on hydraulic principle
c)
has no friction
d)
has no loose parts
70.
A comparator is generally used for
a)
angle measurement
b)
linear measurement
c)
thread measurement
d)
taper measurement
71.
Chart gauges are used in
a)
mechanical comparators
b)
profile projectors
c)
Electronic comparators
d)
CMM
72.
Reed type comparator works on
a)
pneumatic principle
b)
hydraulic principle
c)
mechanical principle
d)
optical principle
73.
Conicity K is
a)
D - d/2
b)
D - d/l
c)
D/l
d)
2(D – d)/l
74.
Morse tapers are available in
a)
6sizes
b)
7sizes
c)
2sizes
d)
3sizes
75.
In an auto collimator the parallel beam of light is obtained by using a
a)
plane mirror
b)
concave lens
c)
optical flat
d)
convex lens
76.
Using angle gauges it is possible to set up angles to the nearest
a)
5”
b)
1’
c)
3”
d)
3’
77.
Sensitivity of a spirit level depends on
a)
size of bubble
b)
length of the glass tube
c)
radius of the glass tube
d)
width of base
78.
Wile specifying the metric standard taper, taper number denotes it’s
a)
larger diameter
b)
smaller diameter
c)
length
d)
angle
79.
A sine bar is specified by its
a)
length x width
b)
Maximum height
c)
distance between the rollers
d)
maximum angle
80.
An auto-collimator is used to check
a)
cylindricity
b)
run out
c)
circularity
d)
perpendicularity
81.
Which one of the following is an angle measuring device
a)
trammels
b)
divider
c)
angle iron
d)
sine bar
82.
The accuracy of measuring angle in tool makers’ microscope is
a)
1’
b)
1”
c)
5’
d)
5”
83.
The accuracy of measuring angle in tool makers’ microscope is
a)
1’
b)
1”
c)
5’
d)
5”
84.
By using toolmaker’s microscope, length can be measured to an accuracy of
a)
0.1mm
b)
0.02mm
c)
0.001mm
d)
0.01mm
85.
The measuring head of a CMM is provided with
a)
jaws
b)
threaded shafts
c)
diamond cone
d)
a probe tip
86.
Focusing of the work on a tool maker’s microscope is done by
a)
rotating the head
b)
moving the table sideways
c)
moving the head up or down
d)
tilting the head
87.
Length bar measuring M/c is used to measure the
a)
pitch
b)
angle of thread
c)
hardness
d)
legth of pin gauge
88.
Steel tapes are made of ______
a)
Spring steel
b)
mild steel
c)
copper
d)
carbon steel
89.
What is the least count of steel sule?
a)
0.05mm
b)
1.0mm
c)
0.02mm
d)
1.5mm
90.
An example for non precision instrument
a)
Steel rule
b)
Vernier caliper
c)
Depth Gauge
d)
Micrometer
91.
The simple measuring instruments used to transfer measurements from a steel rule to objects and vice versa
a)
Vernier caliper
b)
Height gauge
c)
Calipers
d)
Depth Gauge
92.
For measuring recessed areas _______ type of is used
a)
Inside calipers
b)
Transfer Calipers
c)
Odd leg calipers
d)
Jenny calipers
93.
Spring joint calipers have the advantage of____
a)
Quick setting
b)
Quick releasing
c)
Both a & b
d)
None of the above
94.
Vernier caliper works under the principle of _______
a)
difference in scales
b)
Option in scale
c)
Screw and nut
d)
Sliding scale
95.
On a vernier scale of 0.05 least count,there will be ____ divisions.
a)
40 divisions
b)
20 divisions
c)
10 divisions
d)
50 divisions
96.
On a vernier scale of 0.1 least count,there will be ____ divisions.
a)
20 divisions
b)
10 divisions
c)
50 divisions
d)
40 divisions
97.
On a vernier scale of 0.02 least count, there will be ____ divisions.
a)
50 divisions
b)
40 divisions
c)
10 divisions
d)
20 divisions
98.
A gear tooth vernier caliper is used to check the gear tooth thickness ______ .
a)
at pitch line
b)
at crest line
c)
at root line
d)
None of the above
99.
A vernier micrometer has a least count of ____.
a)
0.01mm
b)
0.1mm
c)
0.001mm
d)
0.02mm
100.
On a vernier caliper, fine adjustment mechanism is provided to_____.
a)
lock the movement
b)
get fine movement
c)
lock the movement
d)
None of the above
101.
A hooked vernier depth gauge is used to check
a)
inside diameter
b)
distance to a recess
c)
outside diameter
d)
None of the above
102.
On a vernier micrometer, vernier scale is constructed by dividing __________ .
a)
19 thimble div. into 20 parts
b)
9 thimble div. into 10 parts
c)
49 thimble div. into 50 parts
d)
None of the above
103.
Depth of hole is measured
a)
micrometer
b)
Vernier depth gauge
c)
Vernier height gauge
d)
None of the above
104.
An instrument used for cheking the height of the work pieces or scrbing lines accurately in relation to a given surface is known as _______
a)
caliper
b)
surface plate
c)
Vernier height gauge
d)
None of the above
105.
An outside micrometer spindle screw has a pitch of
a)
0.5mm
b)
10mm
c)
1mm
d)
0.01mm
106.
Ratchet stop of a micrometer is used to give ___
a)
lock the movement
b)
protect the spindle
c)
uniform measuring pressure
d)
protect the thimble
107.
A ‘V’ anvil micrometer is used to check ___.
a)
Thread diameter
b)
error on roundness
c)
Error on parallelism
d)
Thickness of work
108.
The part of a micrometer marked with millimeter scale is _____.
a)
Barrel
b)
Anvil
c)
Thimble
d)
Ratchet
109.
The thimble scale is above the zero line it is known that ____ and value to ____.
a)
Negative error and added
b)
Positive error and subtract
c)
Negative and subtract
d)
None of the above
110.
The thimble scale is below the zero line it is known that ____ and value to ____.
a)
Negative and subtract
b)
Positive error and subtract
c)
Negative error and added
d)
None of the above
111.
In polar co-ordinate system, distances are measured ______
a)
Relative to two axes made at right angles
b)
Along radial lines from a common center
c)
from two points
d)
from one axis and a point
112.
In rectangular co-ordinate system, distances are measured
a)
Relative to two axes made at right angles
b)
From a common center
c)
From one axis and a point
d)
Along radial lines
113.
The point angle of scriber is _____
a)
15 º
b)
90 0
c)
60 0
d)
None of the above
114.
The divider is mainly used for _____
a)
Drawing lines
b)
Check the angle
c)
Drawing arc and circle
d)
None of the above
115.
The angle of V- block is ______
a)
60 0
b)
90 0
c)
30 0
d)
45 0
116.
Trammels is used to scribe ________
a)
Arcs of large radius
b)
Very small circles
c)
Straight lines
d)
None of the above
117.
The angle of a dot punch is _________
a)
30 0
b)
45 0
c)
60 0
d)
90 0
118.
Surface plates are usually made of _____
a)
White cast iron
b)
Mild steel
c)
Grey cast iron
d)
High carbon steel
119.
Surface plate finished by the ______operation
a)
Lapping
b)
Scraping
c)
Honing
d)
Grinding
120.
Angle plate is made up of ________
a)
Grey cast iron
b)
High carbon steel
c)
Mild steel
d)
White cast iron
121.
A ‘V’ block is used to support ____
a)
Irregular work
b)
Tapered work
c)
Oval work
d)
Cylindrical work
122.
The angle of a center punch is ___
a)
30 0
b)
60 0
c)
90 0
d)
None of the above
123.
A bore gauge is incorporated with a__________.
a)
micrometer
b)
dial indicator
c)
vernier scale
d)
telescopic gauge
124.
Bore gauges are used to measure ___________
a)
ovality
b)
circularity
c)
perpendicularity
d)
cylindericity
125.
Bore gauges are compared with a ___________
a)
ring gauge
b)
plug gauge
c)
snap gauge
d)
Hemispherical gauge
126.
A bore gauge can be used for finding the
a)
direct measurement of hole
b)
finish of bores
c)
axis difference of holes
d)
taper of bores
127.
Following tool used for measure ovality
a)
Feeler gauge
b)
Bore gauge
c)
Snap gauge
d)
ring gauge
128.
A telescopic gauge is used to measure
a)
thickness
b)
bore diameter
c)
outside diameter
d)
thread elements
129.
Following tools are impossible to measure the reading directly
a)
Vernier caliper
b)
micrometer
c)
Steel rule
d)
Telescopic gauge
130.
A hemispherical gauge is used to check
a)
thickness of sheet
b)
diameter of small bore
c)
outside diameter
d)
thread elements
131.
Very small bores are measured by
a)
bore gauge
b)
hemispherical gauge
c)
telescopic gauge
d)
none
132.
Following tools are impossible to measure the reading directly
a)
Vernier caliper
b)
micrometer
c)
Hemispherical gauge
d)
dial indicator
133.
____________ Do not indicate actual value of the inspected dimension
a)
Vernier caliper
b)
micrometer
c)
Gauges
d)
Steel rule
134.
Classification Of Gauges according To The Type
a)
Standard & Limit gauge
b)
Reference or Master gauge
c)
Snap gauge & Ring gauge
d)
Fixed & Adjustable gauges
135.
Limit gauges are made to the _____________of the work to be measured
a)
limit size
b)
fit size
c)
actual size
d)
basic size
136.
Classification Of Gauges not according to the design
a)
Single limit & Double limit gauges
b)
Single ended & Double ended gauges
c)
Fixed & Adjustable gauges
d)
Triple limit & multiple limit gauges
137.
For checking shafts, the gauge used is _________.
a)
Plug gauge
b)
Ring gauge
c)
Profile gauge
d)
Thread gauge
138.
Incase of hole, 'NO Go' gauge corresponding to _________.
a)
High limit of size
b)
basic size
c)
actual size
d)
low limit of size
139.
Plain ring gauge checks
a)
plain cylindrical shafts
b)
threaded shafts
c)
tapered shafts
d)
none
140.
ELINVAR has
a)
46% nickel
b)
38% nickel
c)
42% nickel
d)
36% nickel
141.
INVAR
a)
46% nickel
b)
38% nickel
c)
42% nickel
d)
36% nickel
142.
Wringing is done by ______________?
a)
Slip Gauge
b)
Bore gauge
c)
Pitch Gauge
d)
Plug Gauge
143.
Johanson gauge is also called
a)
Pitch Gauge
b)
Plug Gauge
c)
Snap Gauge
d)
Slip Gauge
144.
Non graduated precision instrument is?
a)
Caliper
b)
Slip Gauge
c)
Vernier Caliper
d)
Steel Rule
145.
A component having a length of 1000mm is accurately inspected by ?
a)
Long Vernier Scale
b)
Steel Tape
c)
Length Bar
d)
Slip Gauge
146.
How many grades of Slip gauges are available?
a)
5
b)
4
c)
3
d)
8
147.
Grade 2 Slip gauge is used in __________?
a)
Shop Floor
b)
Inspection
c)
Calibration
d)
None of the Above
148.
Grade 00 is used to ______purpose
a)
Calibration
b)
Highest Precision
c)
Checking
d)
None of the Above
149.
Two slip gauges are joined by
a)
sliding
b)
wringing
c)
polishing
d)
slipping
150.
Checking of a grade1 & grade2 slip gauges is done by
a)
grade0
b)
grade00
c)
calibration grade
d)
none of these
151.
Slip gauges are finished by ______________
a)
Grinding
b)
Lapping
c)
Polishing
d)
Attraction
152.
Seasoning is done for ______ instrument
a)
Slip Gauge
b)
Inspection
c)
Tool Room
d)
None of the Above
153.
Room Temperature maintained for lapping operation is ______
a)
15°
b)
20°
c)
25°
d)
50°
Reset
