Very small pressure difference (< 5 mm water column) can be most conveniently measured by a/an __________ manometer. (A) U-tube water (B) U-tube mercury (C) Inclined tube mercury (D) Inclined tube water

Very small pressure difference (< 5 mm water column) can be most
conveniently measured by a/an __________ manometer.
(A) U-tube water
(B) U-tube mercury
(C) Inclined tube mercury
(D) Inclined tube water
by

1 Answer

Answer :

(D) Inclined tube water
by

Related questions

Small pressure differences in liquids is measured using a/an (A) U-tube manometer (B) Inclined tube manometer (C) Pitot tube (D) None of these

Description : Small pressure differences in liquids is measured using a/an (A) U-tube manometer (B) Inclined tube manometer (C) Pitot tube (D) None of these

Last Answer : (B) Inclined tube manometer

Pressure difference between two points in vessels, pipelines or in two different pipelines can be measured by a differential manometer. The pressure difference measured as the mm of water column in case of mercury-water, differential manometer is equal to (where, H = difference in height of mercury column in mm). (A) H (B) 12.6 H (C) 13.6 H (D) 14.6 H

Description : Pressure difference between two points in vessels, pipelines or in two different pipelines can be measured by a differential manometer. The pressure difference measured as the mm of water column in case of mercury-water, differential manometer is ... mm). (A) H (B) 12.6 H (C) 13.6 H (D) 14.6 H

Last Answer : (B) 12.6 H

Working principle of manometer comprises of balancing a coloumn of liquid against the pressure to be measured. Inclined tube manometer is especially used for the measurement of __________ pressure. (A) Small differential (B) Atmospheric (C) Absolute (D) Gage

Description : Working principle of manometer comprises of balancing a coloumn of liquid against the pressure to be measured. Inclined tube manometer is especially used for the measurement of __________ pressure. (A) Small differential (B) Atmospheric (C) Absolute (D) Gage

Last Answer : (A) Small differential

Flow rate of high velocity flue gas discharged through a stack to the atmosphere can be most conveniently measured by a (A) Pitot tube (B) Manometer (C) Rotameter (D) None of these

Description : Flow rate of high velocity flue gas discharged through a stack to the atmosphere can be most conveniently measured by a (A) Pitot tube (B) Manometer (C) Rotameter (D) None of these

Last Answer : (A) Pitot tube

Which of the following manometer has highest sensitivity? (A) U-tube with water (B) Inclined U-tube (C) U-tube with mercury (D) Micro-manometer with water

Description : Which of the following manometer has highest sensitivity? (A) U-tube with water (B) Inclined U-tube (C) U-tube with mercury (D) Micro-manometer with water

Last Answer : Answer: Option D

In order to increase sensitivity of U-tube manometer, one leg is usually inclined by angle . Sensitivity of inclined tube to sensitivity of U-tube is equal to (A) Sin (B) 1/Sin (C) Cos (D) 1/Cos

Description : In order to increase sensitivity of U-tube manometer, one leg is usually inclined by angle . Sensitivity of inclined tube to sensitivity of U-tube is equal to (A) Sin (B) 1/Sin (C) Cos (D) 1/Cos

Last Answer : Answer: Option B

Choose the wrong statement. Alcohol is used in manometer, because (A) Its vapour pressure is low (B) It provides suitable meniscus for the inclined tube (C) Its density is less (D) It provides longer length for a given pressure difference

Description : Choose the wrong statement. Alcohol is used in manometer, because (A) Its vapour pressure is low (B) It provides suitable meniscus for the inclined tube (C) Its density is less (D) It provides longer length for a given pressure difference

Last Answer : Answer: Option A

Correction for capillary effect in manometers (used for pressure measurement) need not be applied, if diameter of the manometer tube is __________ mm. (A) < 4 (B) > 4 (C) > 12.5 (D) < 10

Description : Correction for capillary effect in manometers (used for pressure measurement) need not be applied, if diameter of the manometer tube is __________ mm. (A) < 4 (B) > 4 (C) > 12.5 (D) < 10

Last Answer : (C) > 12.5

Water flow rate in a pipe of 3.5 metres diameter can be most economically and conveniently measured by a/an (A) Pitot tube (B) Venturimeter (C) Orificemeter (D) Rotameter

Description : Water flow rate in a pipe of 3.5 metres diameter can be most economically and conveniently measured by a/an (A) Pitot tube (B) Venturimeter (C) Orificemeter (D) Rotameter

Last Answer : (A) Pitot tube

Pressure of the order of 10" torr can be measured by (A) Bourdon tube (B) Pirani Gauge (C) Micro-manometer (D) Lonisation gauge

Description : Pressure of the order of 10" torr can be measured by (A) Bourdon tube (B) Pirani Gauge (C) Micro-manometer (D) Lonisation gauge

Last Answer : Answer: Option D

You are given a mercury manometer range 0 -760 mm ? A vacuum gauge reads 60 mm vacuum. The test manometer reads 50 vacuum ? Which of the two in correct.

Description : You are given a mercury manometer range 0 -760 mm ? A vacuum gauge reads 60 mm vacuum. The test manometer reads 50 vacuum ? Which of the two in correct.

Last Answer : The transmitter is correct because 760 - 50 = 710 mm abs.

26. Air velocity in ducts can be measured by using and manometer a) Orifice meter b) Borden gauge c) Pitot tube d) Anemometer

Description : Air velocity in ducts can be measured by using and manometer a) Orifice meter b) Borden gauge c) Pitot tube d) Anemometer

Last Answer : Pitot tube

A mercury (specific gravity = 13.6) manometer connected across an orificemeter fitted in a pipe shows a manometer reading of 2 cms. If the manometer liquid is changed to carbon tetrachloride (specific gravity = 1.6), then for the same flow rate of water the new manometer reading will be __________ cms. (A) 17 (B) 42(C) 84 (D) 1.8

Description : A mercury (specific gravity = 13.6) manometer connected across an orificemeter fitted in a pipe shows a manometer reading of 2 cms. If the manometer liquid is changed to carbon tetrachloride (specific gravity = 1.6), then ... new manometer reading will be __________ cms. (A) 17 (B) 42 (C) 84 (D) 1.8

Last Answer : __________ cms. (A) 17

The capillary rise of mercury is maximum in glass tube of dia __________ mm. (A) 0.5 (B) 1 (C) 2 (D) 5

Description : The capillary rise of mercury is maximum in glass tube of dia __________ mm. (A) 0.5 (B) 1 (C) 2 (D) 5

Last Answer : (A) 0.5

Compare U tube manometer and well type manometer

Description : Compare U tube manometer and well type manometer

Last Answer : U-tube and well type manometer Sr.No. U-tube manometer well type manometer 1 Both legs are having same cross section area Both legs are having different cross section area ... cross section area. 5 Difference in heights in measured. Single height is measured.

Open channel liquid flow is most conveniently measured by a (A) Hot wire anemometer (B) Notch (C) Rotameter (D) Segmental orifice

Description : Open channel liquid flow is most conveniently measured by a (A) Hot wire anemometer (B) Notch (C) Rotameter (D) Segmental orifice

Last Answer : (B) Notch

Why is an inclined manometer used ?

Description : Why is an inclined manometer used ?

Last Answer : It is used to extend the scale of the instrument. Because the manometer is at an angle to the vertical.

If two capillary tubes of dia 0.5 mm and 1 mm are dipped in a pot containing mercury, then the rise of mercury is (A) Same in both the tubes (B) Greater in 1 mm dia tube (C) Greater in 0.5 mm dia tube (D) Zero in both the tubes

Description : If two capillary tubes of dia 0.5 mm and 1 mm are dipped in a pot containing mercury, then the rise of mercury is (A) Same in both the tubes (B) Greater in 1 mm dia tube (C) Greater in 0.5 mm dia tube (D) Zero in both the tubes

Last Answer : (C) Greater in 0.5 mm dia tube

Pressure is measured with the help of A. Manometer. C) Thermocouple. B. Ammeter. D) Orifice plate.

Description : Pressure is measured with the help of A. Manometer. C) Thermocouple. B. Ammeter. D) Orifice plate.

Last Answer : manometer

Root pressure is measured by (1) Barometer (2) Atmometer (3) Manometer (4) Auxanometer

Description : Root pressure is measured by (1) Barometer (2) Atmometer (3) Manometer (4) Auxanometer

Last Answer : Auxanometer

What pressure measuring device consists of a coiled hollow tube that tends to straighten out when the tube is subjected to an internal pressure?  A. Aneroid  B. Manometer  C. Bourdon pressure gage  D. Barometer

Description : What pressure measuring device consists of a coiled hollow tube that tends to straighten out when the tube is subjected to an internal pressure?  A. Aneroid  B. Manometer  C. Bourdon pressure gage  D. Barometer

Last Answer : Bourdon pressure gage

What instrument is used to measure atmospheric pressure?  A. Pitot tube  B. Wind vane  C. Barometer  D. Manometer

Description : What instrument is used to measure atmospheric pressure?  A. Pitot tube  B. Wind vane  C. Barometer  D. Manometer

Last Answer : Barometer

Which of the following is NOT an instrument used to measure pressure?  A. Bourdon tube  B. Pitot tube  C. Aneroid  D. Manometer

Description : Which of the following is NOT an instrument used to measure pressure?  A. Bourdon tube  B. Pitot tube  C. Aneroid  D. Manometer

Last Answer : Pitot tube

A Pitot tube indicates 5 cm of water (manometer) when it is being used for measuring velocity of air. The velocity of air in m/sec is (A) 5 (B) 14.1 (C) 56.22 (D) 28.2

Description : A Pitot tube indicates 5 cm of water (manometer) when it is being used for measuring velocity of air. The velocity of air in m/sec is (A) 5 (B) 14.1 (C) 56.22 (D) 28.2

Last Answer : (D) 28.2

Very low pressure is expressed in microns (μ), which is equal to__________ mm of Hg column (absolute) at 0°C.(A) 0.0001(B) 0.001(C) 0.01(D) 0.1

Description : Very low pressure is expressed in microns (μ), which is equal to__________ mm of Hg column (absolute) at 0°C. (A) 0.0001 (B) 0.001 (C) 0.01 (D) 0.1

Last Answer : (B) 0.001

Manometer is used to measure (A) Pressure in pipes, channels etc. (B) Atmospheric pressure (C) Very low pressure (D) Difference of pressure between two points

Description : Manometer is used to measure (A) Pressure in pipes, channels etc. (B) Atmospheric pressure (C) Very low pressure (D) Difference of pressure between two points

Last Answer : Answer: Option A

Differential manometer is used to measure (A) Pressure in pipes, channels etc. (B) Atmospheric pressure (C) Very low pressure (D) Difference of pressure between two points

Description : Differential manometer is used to measure (A) Pressure in pipes, channels etc. (B) Atmospheric pressure (C) Very low pressure (D) Difference of pressure between two points

Last Answer : Answer: Option D

Why mercury is used in manometer?

Description : Why mercury is used in manometer?

Last Answer : Following are the reasons due to which mercury is used in manometers :- i. Specific gravity of mercury is greater than the other liquids. ii. Mercury is immiscible with other liquids. iii. It does not stick to the surface in contact. 

If to torricelli had drilled a little hole at the top of the glass tube holding his mercury column what would have happened to his barometer?

Description : If to torricelli had drilled a little hole at the top of the glass tube holding his mercury column what would have happened to his barometer?

Last Answer : He would not have had a barometer. He would have had a glass tube stuck into a bowl of Mercury, with nothing in it. Because once the hole was made the vacuum would be gone and the Mercury would fall back down to the bowl.It takes the vacuum in the tube to create a barometer.

Two liquids manometer is used for measuring small pressure differences in (A) Liquids (B) Gases (C) Mixture of hydrocarbons (D) None of these

Description : Two liquids manometer is used for measuring small pressure differences in (A) Liquids (B) Gases (C) Mixture of hydrocarbons (D) None of these

Last Answer : (A) Liquids

Give a reading as the length of some liquid column: water, alcohol, etc.  a. Banometer  b. Nanometer  c. Thermometer  d. Manometer

Description : Give a reading as the length of some liquid column: water, alcohol, etc.  a. Banometer  b. Nanometer  c. Thermometer  d. Manometer

Last Answer : Manometer

Which of the following statements is incorrect? (A) Minimum cross sectional area of longitudinal reinforcement in a column is 0.8% (B) Spacing of longitudinal bars measured along the periphery of column should not exceed 300 mm (C) Reinforcing bars in a column should not be less than 12 mm in diameter (D) The number of longitudinal bars provided in a circular column should not be less than four

Description : Which of the following statements is incorrect? (A) Minimum cross sectional area of longitudinal reinforcement in a column is 0.8% (B) Spacing of longitudinal bars measured along the periphery of ... (D) The number of longitudinal bars provided in a circular column should not be less than four

Last Answer : Answer: Option D

The Maximum spacing of the longitudinal bars measured long the periphery of the column should be [ A ] 250 mm [ B ] 300 mm [ C ] 400 mm [ D ] 450 mm

Description : The Maximum spacing of the longitudinal bars measured long the periphery of the column should be [ A ] 250 mm [ B ] 300 mm [ C ] 400 mm [ D ] 450 mm

Last Answer : [ B ] 300 mm

The __________ pressure is measured by a static tube. (A) Dynamic (B) Static (C) Total (D) None of these

Description : The __________ pressure is measured by a static tube. (A) Dynamic (B) Static (C) Total (D) None of these

Last Answer : (B) Static

Slurries can be most conveniently pumped by a __________ pump. (A) Screw (B) Reciprocating (C) Gear (D) Centrifuga

Description : Slurries can be most conveniently pumped by a __________ pump. (A) Screw (B) Reciprocating (C) Gear (D) Centrifuga

Last Answer : (D) Centrifuga

Differential manometer measures the (A) Atmospheric pressure (B) Sub-atmospheric pressure (C) Pressure difference between two points (D) None of these

Description : Differential manometer measures the (A) Atmospheric pressure (B) Sub-atmospheric pressure (C) Pressure difference between two points (D) None of these

Last Answer : (C) Pressure difference between two points

2. Differential manometer measures the (A) Absolute pressure (B) Gauge pressure (C) Pressure difference (D) Pressure gradien

Description : 2. Differential manometer measures the (A) Absolute pressure (B) Gauge pressure (C) Pressure difference (D) Pressure gradien

Last Answer : (C) Pressure difference

Capillary rise of mercury in a small diameter tube is proportional to (where, d = diameter of the tube, σ = surface tension of mercury) (A) d (B) 1/d (C) σ (D) 1/σ

Description : Capillary rise of mercury in a small diameter tube is proportional to (where, d = diameter of the tube, σ = surface tension of mercury) (A) d (B) 1/d (C) σ (D) 1/σ

Last Answer : (C) σ

Vacuum maintained in the vacuum distillation column in oil refinery is in the range of about __________ mm Hg absolute. (A) 1 to 5 (B) 30 to 80

Description : Vacuum maintained in the vacuum distillation column in oil refinery is in the range of about __________ mm Hg absolute. (A) 1 to 5 (B) 30 to 80

Last Answer : (B) 30 to 80

Exposure to small amount of __________ results in high blood pressure & heart disease in human beings. (A) Hydrogen sulphide (B) Mercury (C) Cadmium (D) Asbestos

Description : Exposure to small amount of __________ results in high blood pressure & heart disease in human beings. (A) Hydrogen sulphide (B) Mercury (C) Cadmium (D) Asbestos

Last Answer : (C) Cadmium

Velocity of liquid hydrocarbon fuels in a pipeline cannot be measured by magnetic flow-meters, because their __________ is very low/small. (A) Thermal conductivity (B) Electrical conductivity (C) Specific gravity

Description : Velocity of liquid hydrocarbon fuels in a pipeline cannot be measured by magnetic flow-meters, because their __________ is very low/small. (A) Thermal conductivity (B) Electrical conductivity (C) Specific gravity

Last Answer : (C) Specific gravity

Bed pressure drop in an air fluidised bed of catalyst particles (ρp = 200 kg/m3, Dp = 0.05 cm) of 60 cm bed depth and bed porosity of 0.5 expressed in cm of water (manometer) is (A) 90 (B) 60 (C) 45 (D) 30

Description : Bed pressure drop in an air fluidised bed of catalyst particles (ρp = 200 kg/m3, Dp = 0.05 cm) of 60 cm bed depth and bed porosity of 0.5 expressed in cm of water (manometer) is (A) 90 (B) 60 (C) 45 (D) 30

Last Answer : (B) 60

The atmospheric pressure at sea level is (A) 103 kN/m2 (B) 10.3 m of water (C) 760 mm of mercury (D) All of these

Description : The atmospheric pressure at sea level is (A) 103 kN/m2 (B) 10.3 m of water (C) 760 mm of mercury (D) All of these

Last Answer : Answer: Option D

A differential manometer is used to measure (A) Atmospheric pressure (B) Pressure in pipes and channels (C) Pressure in Venturimeter (D) Difference of pressures between two points in a pipe

Description : A differential manometer is used to measure (A) Atmospheric pressure (B) Pressure in pipes and channels (C) Pressure in Venturimeter (D) Difference of pressures between two points in a pipe

Last Answer : Answer: Option D

A manometer is used to measure (A) Atmospheric pressure (B) Pressure in pipes and channels (C) Pressure in Venturimeter (D) Difference of pressures between two points in a pipe

Description : A manometer is used to measure (A) Atmospheric pressure (B) Pressure in pipes and channels (C) Pressure in Venturimeter (D) Difference of pressures between two points in a pipe

Last Answer : Answer: Option B

Very high pressure boilers are usually __________ boilers. (A) Fire tube (B) Water tube (C) Waste heat (D) Natural circulation

Description : Very high pressure boilers are usually __________ boilers. (A) Fire tube (B) Water tube (C) Waste heat (D) Natural circulation

Last Answer : (D) Natural circulation

A student measured the diameter of a small steel ball using a screw gauge of least count 0.001 cm. The main scale reading is 5 mm and zero of circular

Description : A student measured the diameter of a small steel ball using a screw gauge of least count 0.001 cm. The main scale reading is 5 mm and zero of circular

Last Answer : A student measured the diameter of a small steel ball using a screw gauge of least count 0.001 cm. The main scale ... (C) 0.053 cm (D) 0.529 cm

What is the normal pressure of air at sea level equal to the pressure of mercury column ?

Description : What is the normal pressure of air at sea level equal to the pressure of mercury column ?

Last Answer : Normal air pressure at sea level is equal to 75cm mercury column pressure.

_________ is defined as that equivalent to the pressure due to a column of mercury 76cm long.  a. surface pressure  b. gage pressure  c. standard atmospheric pressure  d. isobaric pressure

Description : _________ is defined as that equivalent to the pressure due to a column of mercury 76cm long.  a. surface pressure  b. gage pressure  c. standard atmospheric pressure  d. isobaric pressure

Last Answer : standard atmospheric pressure

Find the pressure due to a column of mercury 74.0 cm high.  a. 91.80 x 10^3 N/m^2  b. 73.56 x 10^2 N/m^2  c. 9.86 x 10^4 N/m^2  d. 87.2 x 10^4 N/m^2

Description : Find the pressure due to a column of mercury 74.0 cm high.  a. 91.80 x 10^3 N/m^2  b. 73.56 x 10^2 N/m^2  c. 9.86 x 10^4 N/m^2  d. 87.2 x 10^4 N/m^2

Last Answer : 9.86 x 10^4 N/m^2