# Metrology Quiz 2 And 3

50 Questions | Attempts: 248
Share  Settings  Dear Students, Welcome You have to answer 20 Questions for 20 Marks. Each question carry 1 mark. For every correct answer 1 mark will be given and for wrong answer 0. 25 mark will be deducted. Pl be specific for this quiz 20 minutes will be given. Pl fill correct details before starting this quiz. Fake details will be identified easily and your quiz internal marks will be cancelled. The quiz will be available on 19/04/2019 from 9. 00 PM to 9. 40 PM regards Adithya G

• 1.
Identify class of fit H7/d9
• A.

Loose Running fit

• B.

Force fit

• C.

Shrink fit

• D.

Push fit

• 2.
In the shaft basis system the upper deviation of the shaft is 0
• A.

True

• B.

False

• 3.
NO GO gauges are designed
• A.

For maximum passability

• B.

For minimum passability

• C.

Without any specific conditions

• D.

Without attaching any importance

• 4.
Limit gauges are used
• A.

To measure flatness of the component

• B.

Measure exact size of the component

• C.

Check if the component dimension lies with in permissible limits

• D.

Measure surface roughness of the component

• 5.
In the hole and shaft assembly 40 H7/d8 the number 7 and 8 indicates
• A.

Nothing of importance

• B.

• C.

Accuracy to manufacture

• D.

Ease of assembly

• 6.
Perpendicularity is
• A.

Tolerance

• B.

Geometric tolerance

• C.

Compound tolerance

• D.

Structure tolerance

• 7.
Hole basis system is widely accepted because
• A.

• B.

• C.

During assembly the system give full freedom

• D.

Its upon operators choice

• 8.
An allowance is the intentional difference between the MML that is LLH and HLS of the two mating parts
• A.

True

• B.

False

• 9.
What is bi lateral tolerance
• A.

Total tolerance is in one directional only

• B.

Total tolerance is in both the directions

• C.

May or may not be in one direction

• D.

Tolerance provided all over the component of body

• 10.
Why tolerances are given to parts
• A.

Because it is impossible to make perfect things

• B.

To reduce weight of the component

• C.

To reduce cost of the assembly

• D.

To reduce amount of material used

• 11.
Contactless temperature measurement device
• A.

Pyrometer

• B.

Thermocouple

• C.

Thermopile

• D.

Bimetallic strip

• 12.
When two dissimilar metals are joined together to form two junctions such that one junction (Hot junction) and other junction (Cold junction) a net emf is generated. This effect as seeback effect
• A.

True

• B.

False

• 13.
Mc Leod Gauge works under principle of
• A.

Charles law

• B.

Boyle law

• C.

Daltons law

• D.

Newton law

• 14.
The cross section of bourdon tube is
• A.

Circular

• B.

Rectangular

• C.

Triangular

• D.

Elliptical

• 15.
In Pirani Gauge the pressure is related to
• A.

Thermal Conductivity of gas

• B.

Volume of Gas

• C.

Mass Transfer of Gas

• D.

Composition of Gas

• 16.
When an elastic member is used in conjunction with a strain gauge it is called as
• A.

Proving Ring

• B.

Absorption Dynamometer

• C.

Pony Brake

• D.

• 17.
The ratio to the change in the resistance to the total resistance to that of to the strain of a gauge is
• A.

Resistance factor

• B.

Gauge factor

• C.

Strain factor

• D.

None of the above

• 18.
It is possible to use an unmounted gauge wire stretched between two mechanical points to measure tension
• A.

Bonded gauges

• B.

Unbonded gauges

• C.

Plug gauges

• D.

Ring Gauges

• 19.
Fundamental deviation maximum difference between the size of the component and its basic size
• A.

True

• B.

False

• 20.
A bimetallic strip thermometer work on the principle of different metals expand and contract to different degrees depending upon their stiffness
• A.

True

• B.

False

• 21.
What represents the departure of the observed readings from arithmetic mean of the group of readings
• A.

Dispersion

• B.

Deviation

• C.

Variance

• D.

Median

• 22.
The square of the standard deviation is called variance
• A.

True

• B.

False

• 23.
Systematic errors in a bourdon tube pressure gauge may be caused by
• A.

Friction in the pins and gears of the amplifying mechanism

• B.

Incorrect zero setting of the pointer

• C.

Variation of atmospheric pressure

• D.

Incorrect readings of the scale due to parallax

• 24.
A good instrument used in an unintelligent way gives erroneous result
• A.

True

• B.

False

• 25.
In ________________ system, it is not possible to retain the same fit when tolerance is varied

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