222 + Mcqs in General McqOptions

1.	A steel scale is slightly shorter when compared with a standard scale. This type of error is known as
A.	natural error
B.	systematic error
C.	instrumental error
D.	None of the above
E.	Any of the above
Answer» D. None of the above

Discussion

2.	The value of permissible error depends upon
A.	The scale
B.	The instrument available
C.	Class of work
D.	All of the above
E.	None of the above
Answer» E. None of the above

Discussion

3.	The 'dead time' of the instrument is
A.	The time required by an instrument for initial warming up
B.	The time required by an instrument to begin to respond to a change in the measured value
C.	The largest change of input quantity for which there is no output of the instrument
D.	None of the above
E.	15?C
Answer» C. The largest change of input quantity for which there is no output of the instrument

Discussion

4.	A 4
A.	99999
B.	9999
C.	1000
D.	10000
E.	19999
Answer» F.

Discussion

5.	A error that always follows the same definite mathematical or physical law is known as
A.	Detectable error
B.	Cumulative error
C.	Mathematical error
D.	Systematic error
E.	Physical error
Answer» E. Physical error

Discussion

6.	Natural error in measurement may be due to
A.	Humidity
B.	Temperature
C.	Wind
D.	Gravity
E.	Any of the above
Answer» F.

Discussion

7.	An error that under the same conditions will always be of the same size and sign is known as
A.	Mistake
B.	Detectable error
C.	Accidental error
D.	Systematic error
E.	Cumulative error
Answer» B. Detectable error

Discussion

8.	The statement 'the most probable value of an observed quantity available from a given lot of observations is the one for which the sum of the square of error is a minimum" is known as law of
A.	squared errors
B.	Pythagorous theorem
C.	least squares
D.	None of the above
E.	Any of the above
Answer» D. None of the above

Discussion

9.	In the above case the natural frequency be will
A.	68 Hz
B.	26 Hz
C.	13 Hz
D.	91 Hz
E.	39 Hz
Answer» F.

Discussion

10.	Which of the following is an indirect method of pressure measurement
A.	McLeod gage
B.	Thermal conductivity gage
C.	Diaphragm
D.	All of the above
E.	Any of the above
Answer» E. Any of the above

Discussion

11.	If an error under the same conditions will always be of the same size and sign, it is known as
A.	Training errors
B.	Systematic errors
C.	Cumulative error
D.	Either of (A) and (B) above
E.	Either of (B) and (C) above
Answer» F.

Discussion

12.	Natural error in measurements is due variation in
A.	wind pressure
B.	humidity
C.	Temperature coefficient of liquids
D.	Any of the above
E.	Any of the above
Answer» E. Any of the above

Discussion

13.	Which of the following could be the source of random error in an instrument?
A.	Friction in instrument movement
B.	Backlash
C.	Mechanical vibrations
D.	Hysteresis in elastic members
E.	Any of the above
Answer» F.

Discussion

14.	1 watt is the same as
A.	103 ergs/s
B.	1010 ergs/s
C.	106 ergs/s
D.	105 ergs/s
E.	107 ergs/s
Answer» F.

Discussion

15.	Which of the following device is primarily used to measure pressure?
A.	Bourdon tube
B.	Kundts tube
C.	Hygrometer
D.	Rotameter
E.	All of the above
Answer» B. Kundts tube

Discussion

16.	A thermometer has a time constant of 3.5 seconds. It is quickly taken from a temperature 0?C to water bath at 100?C. What temperature will be indicated after 1.5 second?
A.	100?C
B.	20?C
C.	50?C
D.	15?C
E.	35?C
Answer» F.

Discussion

17.	For ocean sounding where the depth of water is too much and where continuous and accurate record of the depth of water below a boat or ship is to be made, the instrument generally used is known as
A.	Tellurometer
B.	Sound meter
C.	Sound box
D.	Fathometer
E.	dB meter
Answer» C. Sound box

Discussion

18.	In the above problem the thermal time constant will be
A.	2.55 hrs
B.	2.05 hrs
C.	1 hour
D.	1.44 hrs
E.	3.36 hrs
Answer» E. 3.36 hrs

Discussion

19.	Which of the following is not a piezoelectric material?
A.	Quarz
B.	Sodium chloride
C.	Ammonium dihydrogen phosphate
D.	All of the above
E.	As dectors of gamma rays
Answer» C. Ammonium dihydrogen phosphate

Discussion

20.	Which of the following is a non-contact type thermometer?
A.	Alcohol thermometer
B.	Vapour pressure thermometer
C.	Optical pyrometer
D.	Thermocouple
E.	Bimetal strip thermometer
Answer» D. Thermocouple

Discussion

21.	Thermocouples are generally used for temperature measurements upto
A.	500?C
B.	1600?C
C.	250?C
D.	1000?C
E.	2600?C
Answer» C. 250?C

Discussion

22.	Which of the following is not a self-generating transducer?
A.	Thermopile
B.	Ionization chamber
C.	Moving coil generator
D.	Photovoltaic cell
E.	All of the above
Answer» C. Moving coil generator

Discussion

23.	Temperature of a hot moving body can be measured by
A.	a radiation pyrometer
B.	an optical pyrometer
C.	a resistance thermometer
D.	None of the above
E.	Any of the above
Answer» C. a resistance thermometer

Discussion

24.	Elastic members such as Bourdon tube are used to
A.	change force into velocity
B.	change force into displacement
C.	change force into stress
D.	None of the above
E.	Any of the above
Answer» C. change force into stress

Discussion

25.	The standard gold point temperature is
A.	1063?C
B.	1360?C
C.	1963?C
D.	1630?C
E.	1000?C
Answer» B. 1360?C

Discussion

26.	A polarograph is used for the analysis of
A.	solids
B.	liquids
C.	gases
D.	None of the above
E.	Any of the above
Answer» B. liquids

Discussion

27.	The amount of moisture in air is measured by
A.	Photo conductive cell
B.	Thermistor
C.	Single psychrometer
D.	Orsat apparatus
E.	Mass spectrometer
Answer» D. Orsat apparatus

Discussion

28.	Which of the following material has minimum gage factor
A.	Monel
B.	Manganin
C.	Constantan
D.	None of the above
E.	Any of the above
Answer» C. Constantan

Discussion

29.	Venturi tubes are generally made of
A.	stainless steel
B.	aluminium
C.	cast iron
D.	phosphor bronze
E.	Any of the above
Answer» E. Any of the above

Discussion

30.	The display of a digital numerical read out instrument is achieved by
A.	Photo tube
B.	Ionization of gases
C.	Light dependent resistors
D.	Heated filaments
E.	Light emitting diodes
Answer» B. Ionization of gases

Discussion

31.	Surface plates made of granite posses property
A.	are free from residual stresses
B.	there is less tendency for granite to creep
C.	granite does not corrode
D.	All of the above
E.	Any of the above
Answer» E. Any of the above

Discussion

32.	The thermometer is calibrated 150?C to 200?C. The accuracy is specified within
A.	0.5?C
B.	1?C
C.	? 1?C
Answer» C. ? 1?C

Discussion

33.	Under the conditions when the depth of water is too much, to make a continuous record of the depth of water below a boat or ship, the instrument generally used is
A.	sound box
B.	fathometer
C.	d B meter
D.	None of the above
E.	Any of the above
Answer» C. d B meter

Discussion

34.	The accuracy of a 0 - 10 mV meter is
A.	9 mV
B.	Either 9 mV or 10 mV
C.	Either 9 mV or 11 mV
D.	11 mV
E.	More than 11 mV
Answer» D. 11 mV

Discussion

35.	Which of the following instrument is suitable for measuring the temperature of a red hot moving material like molten steel or molten cst iron?
A.	Gas thermometer
B.	Thermistor
C.	Thermocouple
D.	Radiation pyrometer
E.	All of the above
Answer» E. All of the above

Discussion

36.	The static error bank of an instrument does not include
A.	Hysteresis in the instrument
B.	Electrical draft
C.	Non-linearity
D.	All of the above
E.	None of the above
Answer» C. Non-linearity

Discussion

37.	The accuracy depends upon
A.	Precision of instrument
B.	Precision of method
C.	Good planning
D.	All of the above
E.	None of the above
Answer» E. None of the above

Discussion

38.	Which of the following material is used for photoconductive cells
A.	Selenium
B.	Thorium
C.	Mica
D.	Tungsten
E.	Barium sulphate
Answer» B. Thorium

Discussion

39.	A strain gauge with high sensitivity and high gauge factor is
A.	Nichrome transducer
B.	Platinum-tungsten alloy transducer
C.	Semi-conductor strain gauge transducer
D.	Stability and dynaloy strain gauge transducer.
E.	Difficulties in connections and high cost of auxiliary equipment
Answer» D. Stability and dynaloy strain gauge transducer.

Discussion

40.	Which of the following Bourdon tube material can be used for very high pressures?
A.	K-monel
B.	Alloy steel
C.	Phosphor bronze
D.	Stainless steel
E.	Beryllium copper
Answer» C. Phosphor bronze

Discussion

41.	Meter accuracy is determined by
A.	Least reading possible on the scale
B.	One fourth scale deflection
C.	Thickness of the pointer
D.	Half scale deflection
E.	Full scale deflection
Answer» F.

Discussion

42.	Which of the following is generally not used as a thermocouple material?
A.	Platinum - Rhodium
B.	Chromel - Alumel
C.	Gold - Silver
D.	Chromel - Copper
E.	None of the above
Answer» D. Chromel - Copper

Discussion

43.	Which of the following strain gauge material has the highest value of gauge factor?
A.	1
B.	Manganin
C.	Nichrome
D.	Constantan
E.	Soft iron
Answer» F.

Discussion

44.	The carrier material used with strain gauges at room temperature is
A.	Epoxy
B.	Bakelite
C.	Impregnated paper
D.	Iron cement
E.	Rubber
Answer» D. Iron cement

Discussion

45.	A thermistor is basically an instrument for the measurement of
A.	pressure
B.	flow
C.	speed
D.	temperature
E.	Any of the above
Answer» E. Any of the above

Discussion

46.	Which of the following magnetic material has least value of (B.H.)max?
A.	Alnico
B.	Cobalt steel
C.	Carbon steel
D.	3.92 second
E.	Alcomax
Answer» D. 3.92 second

Discussion

47.	The fine wire of which material is most commonly used for resistance thermometer
A.	stainless steel
B.	Aluminium
C.	Nickel
D.	None of the above
E.	Any of the above
Answer» D. None of the above

Discussion

48.	The pH value of pure water could be
A.	1
B.	7
C.	10
D.	14
Answer» C. 10

Discussion

49.	Under force-current analogy, viscous friction coefficient is considered analogous to
A.	Reciprocal of capacitance
B.	Reciprocal of inductance
C.	Reciprocal of resistance
D.	Reciprocal of current
E.	Resistance
Answer» D. Reciprocal of current

Discussion

50.	The carrier material used with strain gages at room temperatuer is
A.	impregnated paper
B.	bakelite
C.	epoxy
D.	None of the above
E.	Any of the above
Answer» B. bakelite

Discussion

Explore topic-wise MCQs in Testing Subject.

A steel scale is slightly shorter when compared with a standard scale. This type of error is known as

The value of permissible error depends upon

The 'dead time' of the instrument is

A 4

A error that always follows the same definite mathematical or physical law is known as

Natural error in measurement may be due to

An error that under the same conditions will always be of the same size and sign is known as

The statement 'the most probable value of an observed quantity available from a given lot of observations is the one for which the sum of the square of error is a minimum" is known as law of

In the above case the natural frequency be will

Which of the following is an indirect method of pressure measurement

If an error under the same conditions will always be of the same size and sign, it is known as

Natural error in measurements is due variation in

Which of the following could be the source of random error in an instrument?

1 watt is the same as

Which of the following device is primarily used to measure pressure?

A thermometer has a time constant of 3.5 seconds. It is quickly taken from a temperature 0?C to water bath at 100?C. What temperature will be indicated after 1.5 second?

For ocean sounding where the depth of water is too much and where continuous and accurate record of the depth of water below a boat or ship is to be made, the instrument generally used is known as

In the above problem the thermal time constant will be

Which of the following is not a piezoelectric material?

Which of the following is a non-contact type thermometer?

Thermocouples are generally used for temperature measurements upto

Which of the following is not a self-generating transducer?

Temperature of a hot moving body can be measured by

Elastic members such as Bourdon tube are used to

The standard gold point temperature is

A polarograph is used for the analysis of

The amount of moisture in air is measured by

Which of the following material has minimum gage factor

Venturi tubes are generally made of

The display of a digital numerical read out instrument is achieved by

Surface plates made of granite posses property

The thermometer is calibrated 150?C to 200?C. The accuracy is specified within

Under the conditions when the depth of water is too much, to make a continuous record of the depth of water below a boat or ship, the instrument generally used is

The accuracy of a 0 - 10 mV meter is

Which of the following instrument is suitable for measuring the temperature of a red hot moving material like molten steel or molten cst iron?

The static error bank of an instrument does not include

The accuracy depends upon

Which of the following material is used for photoconductive cells

A strain gauge with high sensitivity and high gauge factor is

Which of the following Bourdon tube material can be used for very high pressures?

Meter accuracy is determined by

Which of the following is generally not used as a thermocouple material?

Which of the following strain gauge material has the highest value of gauge factor?

The carrier material used with strain gauges at room temperature is

A thermistor is basically an instrument for the measurement of

Which of the following magnetic material has least value of (B.H.)max?

The fine wire of which material is most commonly used for resistance thermometer

The pH value of pure water could be

Under force-current analogy, viscous friction coefficient is considered analogous to

The carrier material used with strain gages at room temperatuer is