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

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
by

1 Answer

Answer :

(C) Greater in 0.5 mm dia tube
by

Related questions

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

The capillary rise at 20°C in a clean glass tube of 1 mm bore containing water is approximately (A) 5 mm (B) 10 mm (C) 20 mm (D) 30 mm

Description : The capillary rise at 20°C in a clean glass tube of 1 mm bore containing water is approximately (A) 5 mm (B) 10 mm (C) 20 mm (D) 30 mm

Last Answer : Answer: Option D

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

If an ordinary glass tube and a glass capillary tube are both dipped in a beaker of water, water rises in (1) both (2) only the glass tube (3) only the capillary tube (4) neither

Description : If an ordinary glass tube and a glass capillary tube are both dipped in a beaker of water, water rises in (1) both (2) only the glass tube (3) only the capillary tube (4) neither

Last Answer : both

If cohesion between molecules of a fluid is greater than adhesion between fluid and glass, then the free level of fluid in a dipped glass tube will be(A) Higher than the surface of liquid (B) The same as the surface of liquid (C) Lower than the surface of liquid (D) Unpredictable

Description : If cohesion between molecules of a fluid is greater than adhesion between fluid and glass, then the free level of fluid in a dipped glass tube will be (A) Higher than the surface of liquid (B) The same as the surface of liquid (C) Lower than the surface of liquid (D) Unpredictable

Last Answer : Answer: Option C

Pick out the wrong statement. (A) A fluid mass is free from shearing forces, when it is made to rotate with a uniform velocity(B) Newton's law of viscosity is not applicable to the turbulent flow of fluidwith linear velocity distribution(C) Laminar flow of viscous liquids is involved in the lubrication of varioustypes of bearings(D) Rise of water in capillary tubes reduces with the increasing diameter ofcapillary tubes

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Last Answer : (B) Newton's law of viscosity is not applicable to the turbulent flow of fluid with linear velocity distribution

Rise of liquid in a capillary tube is due to (A) Cohesion (B) Adhesion (C) Both (A) & (B) (D) Neither (A) nor (B)

Description : Rise of liquid in a capillary tube is due to (A) Cohesion (B) Adhesion (C) Both (A) & (B) (D) Neither (A) nor (B)

Last Answer : (C) Both (A) & (B

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

Description : 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

Last Answer : Ans:(b)

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

A long iron rod initially at a temperature of 20°C has one end dipped in boiling water (100°C) at time, t = 0. The curved surface of the rod is insulated so that heat conduction is one dimensional in the axial direction. The temperature at a distance 100 mm from the dipped end becomes 40°C at time, t = 200 s. The same temperature is achieved at a distance of 200 mm from the dipped end at time (A) t = 283 s (B) t = 356 s (C) t = 400 s (D) t = 800 s

Description : A long iron rod initially at a temperature of 20°C has one end dipped in boiling water (100°C) at time, t = 0. The curved surface of the rod is insulated so that heat conduction is one dimensional in the axial direction. The ... = 283 s (B) t = 356 s (C) t = 400 s (D) t = 800 s

Last Answer : (D) t = 800 s

Pulverised coal passing through 200 mesh screen has a diameter of 0.074 mm (74 micron). The same passing through 50 mesh screen will have a dia of __________ mm. (A) 0.007 (B) 0.30 (C) 50 (D) 0.014

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Last Answer : (B) 0.30

A capillary tube is kept vertical in a beaker containing liquid. The height to which the liquid rises by capillary action is increased if (a) The radius of the capillary is large (b) The radius of the capillary is small (c) The density of the liquid is large (d) The surface tension of the liquid is small

Description : A capillary tube is kept vertical in a beaker containing liquid. The height to which the liquid rises by capillary action is increased if (a) The radius of the capillary is large (b) The radius of the ... small (c) The density of the liquid is large (d) The surface tension of the liquid is small

Last Answer : Ans:(b)

Water rises in a capillary tube to a height h. It will rise to a height more than h. a.in a lift moving up with an acceleration b.in all the above cases c.107 dynes d.at the poles e.on the surface of moon

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Last Answer : e. on the surface of moon

A glass tube of smaller diameter is used while performing an experiment for the capillary rise of water because (A) It is easier to see through the glass tube (B) Glass tube is cheaper than a metallic tube (C) It is not possible to conduct this experiment with any other tube (D) All of the above

Description : A glass tube of smaller diameter is used while performing an experiment for the capillary rise of water because (A) It is easier to see through the glass tube (B) Glass tube is cheaper than a metallic ... (C) It is not possible to conduct this experiment with any other tube (D) All of the above

Last Answer : Answer: Option A

What is the critical rotation speed in revolutions per second, for a ball mill of 1.2 m diameter charged with 70 mm dia balls? (A) 0.5 (B) 1.0 (C) 2.76 (D) 0.66

Description : What is the critical rotation speed in revolutions per second, for a ball mill of 1.2 m diameter charged with 70 mm dia balls? (A) 0.5 (B) 1.0 (C) 2.76 (D) 0.66

Last Answer : (D) 0.66

. A 0.5 m high bed made up of a 1 mm dia glass sphere (density 2500 kg/m3 ) is to be fluidised by water (density 1000 kg/m3 ). If at the point of incipient fluidisation, the bed voidage is 40%, the pressure drop across the bed is (A) 4.4 KPa (B) 2.94 KPa (C) 3.7 KPa (D) None of these

Description : . A 0.5 m high bed made up of a 1 mm dia glass sphere (density 2500 kg/m3 ) is to be fluidised by water (density 1000 kg/m3 ). If at the point of incipient fluidisation, the bed voidage is 40%, the pressure drop across the bed is (A) 4.4 KPa (B) 2.94 KPa (C) 3.7 KPa (D) None of these

Last Answer : (A) 4.4 KPa

Mercury is typically used in the placement of which of the following tubes? a) Miller-Abbott Most nasoenteric tubes use mercury to carry the tube by gravity to its desired location. b) Gastric sump A gastric sump is used to decompress and empty the stomach. c) Dobbhoff Dobbhoff tubes are used for enteric feeding. d) EnterafloW Enteraflow tubes are used for enteric feeding

Description : Mercury is typically used in the placement of which of the following tubes? a) Miller-Abbott Most nasoenteric tubes use mercury to carry the tube by gravity to its desired location. b) ... Dobbhoff tubes are used for enteric feeding. d) EnterafloW Enteraflow tubes are used for enteric feeding

Last Answer : a) Miller-Abbott Most nasoenteric tubes use mercury to carry the tube by gravity to its desired location.

You are required to draw blood from a patient and to keep it in a test tube for analysis of blood corpuscles and plasma. You are also provided with the following four types of test tubes. Which of these you will not use for the purpose? (a) Test tube containing calcium bicarbonate (b) Chilled test tube (c) Test tube containing heparin (d) Test tube containing sodium oxalate

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Last Answer : (a) Test tube containing calcium bicarbonate

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

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Last Answer : (D) Inclined tube water

The length of the countersunk head rivet shank is, when L = length of the rivet, G = length of grip in mm; D = Dia of rivet in mm a) L =G +0.5 D + 1mm for every 4 mm of grip or part thereof * b) b) L =G +0.5 D + 1mm c) L =G +0.5 D d) None of the above

Description : The length of the countersunk head rivet shank is, when L = length of the rivet, G = length of grip in mm; D = Dia of rivet in mm a) L =G +0.5 D + 1mm for every 4 mm of grip or part thereof * b) b) L =G +0.5 D + 1mm c) L =G +0.5 D d) None of the above

Last Answer : a) L =G +0.5 D + 1mm for every 4 mm of grip or part thereof *

he length of the snap head rivet shank is, when L = length of the rivet, G = length of grip in mm; D = Dia of rivet in mm a) L =G +1.5 D + 1mm for every 4 mm of grip or part thereof * b) b) L =G +0.5 D + 1mm c) L =G +0.5 D d) None of the above

Description : he length of the snap head rivet shank is, when L = length of the rivet, G = length of grip in mm; D = Dia of rivet in mm a) L =G +1.5 D + 1mm for every 4 mm of grip or part thereof * b) b) L =G +0.5 D + 1mm c) L =G +0.5 D d) None of the above

Last Answer : a) L =G +1.5 D + 1mm for every 4 mm of grip or part thereof *

Select the correct statement. (A) The discharge through a Venturimeter depends upon Δp only and isindependent of orientation of the meter(B) A Venturimeter with a given gage difference discharges at a greater rate,when the flow is vertically downward through it, than when the flow is verticallyupward(C) For a given pressure difference, the discharge of gas is greater through aVenturimeter, when compressibility is taken into account, than when it isneglected(D) The overall pressure loss is the same in a given pipe line, whether aVenturimeter or a nozzle with the same throat dia is used

Description : Sele(A) The discharge through a Venturimeter depends upon Δp only and isindependent of orientation of the meterct the correct statement. (B) A Venturimeter with a given gage difference discharges at a ... a given pipe line, whether a Venturimeter or a nozzle with the same throat dia is used

Last Answer : (A) The discharge through a Venturimeter depends upon Δp only and isindependent of orientation of the meterct the correct statement

Select the correct statement. (A) The discharge through a Venturimeter depends upon Δp only and isindependent of orientation of the meter(B) A Venturimeter with a given gage difference discharges at a greater rate,when the flow is vertically downward through it, than when the flow is verticallyupward(C) For a given pressure difference, the discharge of gas is greater through aVenturimeter, when compressibility is taken into account, than when it isneglected(D) The overall pressure loss is the same in a given pipe line, whether aVenturimeter or a nozzle with the same throat dia is used

Description : Select the correct statement. (A) The discharge through a Venturimeter depends upon Δp only and isindependent of orientation of the meter (B) A Venturimeter with a given gage difference discharges at a ... a given pipe line, whether a Venturimeter or a nozzle with the same throat dia is used

Last Answer : (A) The discharge through a Venturimeter depends upon Δp only and isindependent of orientation of the meter

The diameter of hole for 20 dia rivet shall be a) 23 mm b) 18 mm c) 21.5 mm* d) 22 mm

Description : The diameter of hole for 20 dia rivet shall be a) 23 mm b) 18 mm c) 21.5 mm* d) 22 mm

Last Answer : c) 21.5 mm*

In a residential colony, sewers of diameters 100 mm, 150 mm and 225 mm were laid with a gradient 1 in 120. Which portion of the sewage system does not choke in due course of time? A. 100 mm dia. B. 150 mm dia. C. 225 mm dia. D. All of these

Description : In a residential colony, sewers of diameters 100 mm, 150 mm and 225 mm were laid with a gradient 1 in 120. Which portion of the sewage system does not choke in due course of time? A. 100 mm dia. B. 150 mm dia. C. 225 mm dia. D. All of these

Last Answer : ANS: C

For high level flush the nominal dia of flush pipe shall be (a) 32 mm* (b) 40 mm (c) 25 mm (d) None of these

Description : For high level flush the nominal dia of flush pipe shall be (a) 32 mm* (b) 40 mm (c) 25 mm (d) None of these

Last Answer : a) 32 mm*

What is the dia of thimble ? (i) 14-16 mm (ii) 16-18 mm* (iii) 18-20 mm (iv) None of the above

Description : What is the dia of thimble ? (i) 14-16 mm (ii) 16-18 mm* (iii) 18-20 mm (iv) None of the above

Last Answer : (ii) 16-18 mm*

The bank of tubes at the back of domestic refrigerator are (a) condenser tubes (b) evaporator tubes (c) refrigerant cooling tubes (d) capillary tubes

Description : The bank of tubes at the back of domestic refrigerator are (a) condenser tubes (b) evaporator tubes (c) refrigerant cooling tubes (d) capillary tubes

Last Answer : Ans: a

If the diameter of a capillary is doubled, then the rise of water in it will be – (1) two times (2) half (3) four times (4) no change

Description : If the diameter of a capillary is doubled, then the rise of water in it will be – (1) two times (2) half (3) four times (4) no change

Last Answer : (2) half Explanation: Radius of a capillary tube is inversely proportional to the height of the liquid column. So, if radius of the tube is doubled, rise of level of water will becomes half ... to flow in narrow spaces without the assistance of, and in opposition to external forces like gravity.

If the diameter of a capillary is doubled, then the rise of water in it will be (1) two times (2) half (3) four times (4) no change

Description : If the diameter of a capillary is doubled, then the rise of water in it will be (1) two times (2) half (3) four times (4) no change

Last Answer : half

16. When a tube of smaller diameter is dipped in water, the water rises in the tube due to viscosity of water. A) True B) False

Description : 16. When a tube of smaller diameter is dipped in water, the water rises in the tube due to viscosity of water. A) True B) False

Last Answer : B

When a tube of smaller diameter is dipped in water, the water rises in the tube with an upward __________ surface. (A) Concave(B) Convex (C) Plane (D) None of these

Description : When a tube of smaller diameter is dipped in water, the water rises in the tube with an upward __________ surface. (A) Concave (B) Convex (C) Plane (D) None of these

Last Answer : Answer: Option A

Thermometer bulb & capillary in case of mercury filled pressure spring expansion thermometer is normally made of __________ as mercury does not amalgamate with it. (A) Copper (B) Copper alloys (C) Stainless steel (D) Monel

Description : Thermometer bulb & capillary in case of mercury filled pressure spring expansion thermometer is normally made of __________ as mercury does not amalgamate with it. (A) Copper (B) Copper alloys (C) Stainless steel (D) Monel

Last Answer : (C) Stainless steel

Mercury is an ideal barometric fluid mainly due to its(A) High density (B) Low compressibility (C) Low capillary action (D) Very low vapor pressure

Description : Mercury is an ideal barometric fluid mainly due to its (A) High density (B) Low compressibility (C) Low capillary action (D) Very low vapor pressure

Last Answer : (D) Very low vapor pressure

Pick out the wrong statement. (A) The value of hydrostatic head increases with increase in vacuum in the effect in a multiple effect evaporator system (B) Entering velocity of the liquid in the tubes of natural circulation evaporators is in the range of 0.3 to 0.9 metre/second (C) Duhring's plot is used for calculating the concentration of solution (D) In a multiple effect evaporation system, the number of effects is limited by the total boiling point rise

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Last Answer : (C) Duhring's plot is used for calculating the concentration of solution

A liquid flows through a capillary tube. Then the velocity of the liquid is (a) Maximum at the walls of the tubs (b) Constant at all points in the cross section of the tube (c) Maximum along the axis of the tube (d) Independent of the pressure-head

Description : A liquid flows through a capillary tube. Then the velocity of the liquid is (a) Maximum at the walls of the tubs (b) Constant at all points in the cross section of the tube (c) Maximum along the axis of the tube (d) Independent of the pressure-head

Last Answer : Ans:(c)

Air is to be heated by condensing steam. Two heat exchangers are available (i) a shell and tube heat exchanger and (ii) a finned tube heat exchanger. Tube side heat transfer area are equal in both the cases. The recommended arrangement is (A) Finned tube heat exchanger with air inside and steam outside (B) Finned tube heat exchanger with air outside and steam inside (C) Shell and tube heat exchanger with air inside tubes and steam on shell side (D) Shell and tube heat exchanger with air on shell side and steam inside tubes

Description : Air is to be heated by condensing steam. Two heat exchangers are available (i) a shell and tube heat exchanger and (ii) a finned tube heat exchanger. Tube side heat transfer area are equal in both ... steam on shell side (D) Shell and tube heat exchanger with air on shell side and steam inside tubes

Last Answer : (B) Finned tube heat exchanger with air outside and steam inside

Convective heat transfer co-efficient in case of fluid flowing in tubes is not affected by the tube length/diameter ratio, if the flow is in the __________ zone. (A) Laminar (B) Transition (C) Both 'a' & 'b' (D) Highly turbulent

Description : Convective heat transfer co-efficient in case of fluid flowing in tubes is not affected by the tube length/diameter ratio, if the flow is in the __________ zone. (A) Laminar (B) Transition (C) Both 'a' & 'b' (D) Highly turbulent

Last Answer : (D) Highly turbulent

Tubes are held between top and bottom tube sheets in Calandria type evaporator by keeping (A) Both the tube sheets fixed (B) Both the tube sheets floating (C) The top tube sheet floating and bottom tube sheet fixed (D) The top tube sheet fixed and the bottom tube-sheet floating

Description : Tubes are held between top and bottom tube sheets in Calandria type evaporator by keeping (A) Both the tube sheets fixed (B) Both the tube sheets floating (C) The top tube sheet floating and bottom tube sheet fixed (D) The top tube sheet fixed and the bottom tube-sheet floating

Last Answer : (A) Both the tube sheets fixed

Baffles provided on the shell side of a shell and tube heat exchanger are meant for (A) Providing support for the tubes (B) Improving heat transfer (C) Both 'a' & 'b' (D) Preventing the fouling of tubes & stagnation of shell side fluid

Description : Baffles provided on the shell side of a shell and tube heat exchanger are meant for (A) Providing support for the tubes (B) Improving heat transfer (C) Both 'a' & 'b' (D) Preventing the fouling of tubes & stagnation of shell side fluid

Last Answer : C) Both 'a' & 'b'

Capillary tube method of viscosity measurement is based on the (A) Hagen-Poiseuille’s equation (B) Stoke's law (C) Navier-stokes equation (D) None of these

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Last Answer : (A) Hagen-Poiseuille’s equation

If an ordinary glass tube and a glass capillary tube are 'both clipped in a beaker of water, water rises in – (1) both (2) only the glass tube (3) only the capillary tube (4) neither

Description : If an ordinary glass tube and a glass capillary tube are 'both clipped in a beaker of water, water rises in – (1) both (2) only the glass tube (3) only the capillary tube (4) neither

Last Answer : (1) both Explanation: The rise or fall of liquid due to capillarity in a beaker of water depends upon the radius of the bore of the tube (s) which is/are dipped into it. The narrower the bore of ... in the tube. So in this case, water will rise in both the glass tube and the glass capillary tube.

The co-efficient of discharge of an orificemeter is a function of (A) Reynolds number at the orifice (B) Ratio of orifice dia to pipe dia (C) Both (A) and (B) (D) None of the above parameters, and has a constant value of 0.61

Description : The co-efficient of discharge of an orificemeter is a function of (A) Reynolds number at the orifice (B) Ratio of orifice dia to pipe dia (C) Both (A) and (B) (D) None of the above parameters, and has a constant value of 0.61

Last Answer : (C) Both (A) and (B)

One tube can fill a tank five times as fast as another tube. If together the two tubes can fill tank in 42 min, then the slower tube alone will be able to fill the tank in? A) 252 min B) 208 min C) 244 min D) 192 min

Description : One tube can fill a tank five times as fast as another tube. If together the two tubes can fill tank in 42 min, then the slower tube alone will be able to fill the tank in? A) 252 min B) 208 min C) 244 min D) 192 min

Last Answer : A Let the slower tube alone fill the tank in x min. Then, faster tube will fill it in x/5 min. 1/x + 5/x = 1/42 6/x = 1/42 => x = 252min.

Which of the following statements about septic shock are true? A. A circulating myocardial depressant factor may account for the cardiac dysfunction sometimes seen with shock due to sepsis or SIRS. B. A cardiac index (CI) of 6 liters per minute per square meter of body surface, a pulmonary capillary wedge pressure of 15 mm. Hg, and a systemic vascular resistance index (SVRI) of 800 dynes-sec/(cm 5-m 2) is a hemodynamic profile consistent with septic shock. C. An increase in SvO 2 in septic patients may be explained by the finding of anatomic arteriovenous shunts. D. Results of human trials employing antimediator therapy, such as antiendotoxin antibodies, IL-1 receptor antagonist, and tumor necrosis factor (TNF) antibodies, have confirmed animal studies that demonstrate a significant im

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Last Answer : Answer: AB DISCUSSION: Shock due to sepsis or SIRS frequently manifests as a hyperdynamic cardiovascular response, consisting of an elevated CI and a decreased SVR or SVRI. Occasionally, ... been encouraging thus far in human clinical trials, despite the promising results from many animal studies

The capillary rise of water (A) Depends upon the force responsible (B) Increases as the size of the soil particles increases (C) Decreases as the size of the soil particles decreases (D) Is less in wet soil than in dry soil

Description : The capillary rise of water (A) Depends upon the force responsible (B) Increases as the size of the soil particles increases (C) Decreases as the size of the soil particles decreases (D) Is less in wet soil than in dry soil

Last Answer : (A) Depends upon the force responsible

Minimum thickness of a layer of fine sand required to cut off capillary rise of water completely, should be (A) 40 cm(B) 52 cm (C) 64 cm (D) 76 cm

Description : Minimum thickness of a layer of fine sand required to cut off capillary rise of water completely, should be (A) 40 cm (B) 52 cm (C) 64 cm (D) 76 cm

Last Answer : Answer: Option D

Pick up the correct statement from the following: (A) Sand consists of coarse particles of silica formed due to the disintegration of rocks (B) The grains of sand are not affected by frost (C) Sand beds are permeable and do not allow water to rise up between pores due to capillary action (D) All the above

Description : Pick up the correct statement from the following: (A) Sand consists of coarse particles of silica formed due to the disintegration of rocks (B) The grains of sand are not affected by frost (C) Sand ... and do not allow water to rise up between pores due to capillary action (D) All the above

Last Answer : Answer: Option D

Essential amino acids have been advocated as standard therapy for renal failure. Which of the following statements are true? A. Increased survival from acute renal failure has been reported with both essential and nonessential amino acid therapy of patients in renal failure. B. Essential amino acids retard the rise of blood urea nitrogen (BUN) secondary to decreased urea appearance. C. Essential amino acids and hypertonic dextrose are a convenient form of therapy for hyperkalemia. D. Essential amino acids decrease BUN and creatinine to the same degree as solutions containing excessive nonessential amino acids.

Description : Essential amino acids have been advocated as standard therapy for renal failure. Which of the following statements are true? A. Increased survival from acute renal failure has been reported ... BUN and creatinine to the same degree as solutions containing excessive nonessential amino acids.

Last Answer : Answer: BC DISCUSSION: Essential amino acids and hypertonic dextrose, as opposed to hypertonic dextrose alone, was reported by Abel and co-workers to be associated with a decreased mortality rate ... renal failure have not been carried out in sufficient numbers to yield answers to this question