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

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
by

1 Answer

Answer :

Answer: Option A
by

Related questions

Alcohol is used in manometers because (A) It has low vapour pressure (B) It is clearly visible (C) It has low surface tension (D) It can provide longer column due to low density

Description : Alcohol is used in manometers because (A) It has low vapour pressure (B) It is clearly visible (C) It has low surface tension (D) It can provide longer column due to low density

Last Answer : Answer: Option D

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

Description : 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

Last Answer : (D) Inclined tube water

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

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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

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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

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Last Answer : (A) Small differential

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

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Let a tin capillary tube be replaced with another tube of insufficient length then we find that water (a) Will overflow (b) Will not rise (c) Depress (d) Changes its meniscus

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Last Answer : Ans:(b)

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

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Last Answer : Answer: Option D

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

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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

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Last Answer : Answer: Option D

Mercury is often used in barometer because (A) It is the best liquid (B) The height of barometer will be less (C) Its vapour pressure is so low that it may be neglected (D) Both (B) and (C)

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

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Which of the following statement is wrong? (A) A flow whose streamline is represented by a curve is called two dimensional flow. (B) The total energy of a liquid particle is the sum of potential energy, kinetic energy and pressure energy. (C) The length of divergent portion in a Venturimeter is equal to the convergent portion. (D) A pitot tube is used to measure the velocity of flow at the required point in a pipe.

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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.

In a barometer, mercury is preferred over water because (a) mercury is a good conductor of heat (b) mercury is shining and therefore its level can be read easily (c) mercury is available in pure form (d) mercury has high density and low vapour pressure

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Last Answer : Ans:(d)

A small object is 2 cm below the concave meniscus of water in a test tube . The radius of the meniscus is 5mm and `mu` for water is `4//3`. Find the n

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The sensitiveness of a level tube decreases if (A) Radius of curvature of its inner surface is increased (B) Diameter of the tube is increased (C) Length of the vapour bubble is increased (D) Both viscosity and surface tension are increased

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Last Answer : (D) Both viscosity and surface tension are increased

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A manometer is used to measure (A) Low pressure (B) Moderate pressure (C) High pressure (D) Atmospheric pressure

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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

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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

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

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For manometer, a better liquid combination is one having (A) Higher surface tension (B) Lower surface tension (C) Surface tension is no criterion (D) High density and viscosity

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A common fluorescent tube contains (a) sodium vapour (b) argon at low pressure (c) mercury vapour at low pressure (d) mercuric oxide and neon

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Pick out the wrong statement. (A) The controlling resistance in case of heating of air by condensing steam is in the air film (B) The log mean temperature difference (LMTD) for counter flow and parallel flow can be theoretically same when any one of the fluids (hot or cold fluid) passes through the heat exchanger at constant temperature (C) In case of a 1 - 2 shell and tube heat exchanger, the LMTD correction factor value increases sharply, when a temperature cross occurs (D) Phase change in case of a pure fluid at a given pressure from liquid to vapor or vice-versa occurs at saturation temperature

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Last Answer : Answer: Option A

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Last Answer : Answer: Option D

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

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