Description : The principal action common to all class I antiarrhythmic drugs is: A. Na+ channel blockade B. K+ channel opening C. Depression of impulse conduction D. Prolongation of effective refractory period
Last Answer : A. Na+ channel blockade
Description : A furnace is made of a refractory brick wall of thickness 0.5 metre and thermal conductivity 0.7 W/m.°K For the same temperature drop and heat loss, this refractory wall can be replaced by a layer of diatomaceous earth of ... and thickness __________ metre. (A) 0.01 (B) 0.1 (C) 0.25 (D) 0.5
Last Answer : (B) 0.1
Description : Compared with myelinated nerve fibres, non-myelinated nerve fibres : a. have a higher threshold for stimulation b. have a longer refractory period c. transmit impulses at a lower frequency d. all above
Last Answer : all above
Description : The most significant feature of the antiarrhythmic action of lignocaine is: A. Suppression of phase-4 depolarization in ventricular ectopic foci B. Prolongation of action potential duration C. Prolongation of effective refractory period D. Depression of membrane responsiveness
Last Answer : A. Suppression of phase-4 depolarization in ventricular ectopic foci
Description : Quinidine has the following action on electrophysiological properties of the heart except: A. Decreases automaticity of Purkinje fibres B. Abolishes after depolarizations C. Prolongs refractory period of atrial fibres D. Decreases membrane responsiveness of atrial and ventricular fibres
Last Answer : B. Abolishes after depolarizations
Description : Digitalis induced increase in refractory period of myocardial fibres is most consistent and pronounced in the: A. Atria B. Ventricles C. A-V node D. Purkinje fibres
Last Answer : C. A-V node
Description : The sympathetic and parasympathetic systems exert functionally opposite influences on the following parameters except: A. Heart rate B. Atrial refractory period C. Pupil diameter D. Intestinal motility
Last Answer : B. Atrial refractory period
Description : Nyquest stability is used to determine a) Absolute Stability b) Relative Stability c) Both d) None
Last Answer : Ans: Both*
Description : The humidity of air measured in percentage is called – (1) absolute humidity (2) specific humidity (3) relative humidity (4) all of these
Last Answer : (3) relative humidity Explanation: The relative humidity is the percent of saturation humidity, generally calculated in relation to saturated vapour density.
Description : Amount of water vapour in a unit volume (Cubic metre) of air is called: (1) Mixed ratio (2) relative humidity (3) absolute humidity (4) specific humidity
Last Answer : (3) absolute humidity Explanation: Absolute humidity is the measure of water vapor (moisture) in the air, regardless of temperature. It is expressed as grams of moisture per cubic meter of air (g/m3).
Description : The abundance of a species population, within its habitat, is called (a) relative density (b) regional density (c) absolute density (d) niche density.
Last Answer : (d) niche density.
Description : Pick up the correct statement from the following: (A) The surface defined by the locus of points having same phase, is called a wave front (B) The wave whose surface of constant phase are parallel planes, ... waves is important and not the absolute phase of a point on the wave (D) All of these
Last Answer : Answer: Option D
Description : Pick out the wrong statement: (A) Change in barometric pressure does not affect the relative humidity (B) In case of a packed tower, the operating velocity is about half of the ... (D) The equilibrium moisture content of the solid can be reduced by increasing the absolute humidity
Last Answer : (D) The equilibrium moisture content of the solid can be reduced by increasing the absolute humidity
Description : Do you live by absolute or relative morals and truths?
Last Answer : answer:Well there are about 30 question in there, lol, so I will try to pick out a couple. I don't believe that anyone can live there life without lieing. Your not going to tell you boss that his ... want to really hear the truth, we want to hear what makes us feel better or to justify an action.
Description : What's the difference between position: fixed, relative, and absolute?
Last Answer : I’ve got an article bookmarked for this explanation. Have fun!
Description : Describe absolute and relative growth rates of plants. -Biology
Last Answer : answer:
Description : Absolute Poverty and Relative Poverty.
Last Answer : Distinguish between: Absolute Poverty and Relative Poverty.
Description : 1. ____________ poverty refers to lack of minimum subsistence. [Absolute/Relative/General]
Last Answer : Choose the correct option: 1. ____________ poverty refers to lack of minimum subsistence. [ ... be removed completely. [Absolute/Relative/Urban]
Description : Why are the relative and absolute ages so important to a scientist in geology?
Last Answer : Need answer
Description : What is the differences between absolute poverty and relative poverty?
Last Answer : Absolute poverty would be describing someone who owns nothing.Relative poverty is someone who makes less then a certain amount ofmoney per year, putting them well below the average incomelevel.
Description : Dry-bulb temperature is: a. The absolute temperature corresponding to the atmospheric pressure b. The same as the wet-bulb temperature if the relative humidity is less than 100% c. Not required ... d. The temperature of the air measured with an ordinary thermometer e. The dew point temperature
Last Answer : Answer: D
Description : A siuation where we have people whose level of income is not sufficient to meet the minimum consumption expenditure is considered as - (1) Absolute Poverty (2) Relative Poverty (3) Urban Poverty (4) Rural Poverty
Last Answer : (1) Absolute Poverty Explanation: Absolute poverty is defined as a situation in which the individual's basic needs are not covered, in other words, there is a lack of basic goods and services ( ... shelter, education and information. It depends not only on income but also on access to services."
Description : The mass of water vapour per unit volume of air is known as - (1) relative humidity (2) specific humidity (3) absolute humidity (4) variable humidity
Description : Amount of water vapour (gaseous) in a given volume of air (cubic metre) is known as: (1) Mixing ratio (2) Relative humidity (3) Absolute humidity (4) Specific humidity
Last Answer : (3) Absolute humidity Explanation: The relative humidity of air at a given temperature is the ratio of mass of water vapour actually present in a certain volume of air to the mass of water vapour required to saturate the same volume of air at the same temperature, multiplied by 100.
Description : Heat stored in water vapour is – (1) specific heat (2) latent heat (3) absolute heat (4) relative heat
Last Answer : (2) latent heat Explanation: Latent heat is the heat released or absorbed by a body or a thermodynamic system during a process that occurs without a change in temperature. A typical example is a ... the boiling of water. So water vapor which is the end product of evaporated water has latent heat.
Description : When the __________ the relative humidity of air decreases, despite an increase in the absolute humidity. (A) Temperature rises (B) Pressure rises (C) Temperature falls (D) Pressure falls
Last Answer : (A) Temperature rises
Description : Air initially at 101. 3 kPa and 40°C and with a relative humidity of 50%, is cooled at constant pressure to 30°C. The cooled air has a (A) Higher dew point (B) Higher absolute (specific) humidity (C) Higher relative humidity (D) Higher wet bulb temperature
Last Answer : (C) Higher relative humidity
Description : The relative humidity of air decreases in-spite of an increase in the absolute humidity, when the (A) Temperature rises (B) Pressure rises (C) Temperature falls (D) Pressure falls
Description : address is not assigned by linker. a. Absolute b. Relative c. Botha &b a None of these
Last Answer : a. Absolute
Description : address is provided by linker to modules linked together that starting from. | a. Absolute and 0 b. Relative and 0 c. Relative and 1 d. Relative and 3
Last Answer : b. Relative and 0
Description : which of the following are types of assembler entities: a. Absolute entities b. Relative entities c. Object program d. Allof these
Last Answer : d. Allof these
Description : shave addresses where instructions are stored along with address of working storage: a. _ Relative entities b. Absolute entities c. Botha &b d. None of these
Last Answer : a. _ Relative entities
Description : A module contains machine code with specification on_ _ a. Relative addresses b. Absolute addresses c. Object program d. None of these
Last Answer : a. Relative addresses
Description : The permeability of a dielectric material in air medium will be a) Absolute permeability b) Relative permeability c) Product of absolute and relative permeability d) Unity
Last Answer : a) Absolute permeability
Description : The total permeability in a conductor is a) Absolute permeability b) Relative permeability c) Product of absolute and relative permeability d) Unity
Last Answer : c) Product of absolute and relative permeability
Description : In metals, the total permittivity is a) Absolute permittivity b) Relative permittivity c) Product of absolute and relative permittivity d) Unity
Last Answer : a) Absolute permittivity
Description : Which parameter is unity in air medium? a) Permittivity b) Absolute permeability c) Relative permeability d) Permeability
Last Answer : c) Relative permeability
Description : In free space, which parameter will be unity? a) Permittivity b) Absolute permittivity c) Relative permittivity d) Permeability
Last Answer : c) Relative permittivity
Description : In case of hydraulically smooth pipe, the resistance to flow depends only on the Reynolds number, whereas for a hydraulically rough pipe, the resistance to flow is governed by the relative roughness. Two pipes are said ... co-efficient for flows at equal Reynold number (D) All (A), (B) & (C)
Last Answer : (C) Friction co-efficient for flows at equal Reynold number
Description : The actual mass of water vapour present in a given volume of moist air is — a. Relative humidity b. Absolute humidity c. Specific humidity d. All of these
Last Answer : b. Absolute humidity
Description : Pick up the correct statement from the following: (A) Absolute humidity at a given temperature is equal to weight of moisture present in a unit volume (B) Relative humidity is the ratio of ... of vapours which could be contained at the same temperature when fully saturated (D) All the above
Description : _________is the partial pressure of water vapor at the existing temperature divided by the equilibrium vapor pressure of water at the existing temperature. a. vacuum pressure b. relative humidity c. absolute pressure d. vapor pressure
Last Answer : relative humidity
Description : What is considered as the actual pressure at a given position and is measured relative to absolute vacuum? A. Gage pressure B. Absolute pressure C. Atmospheric pressure D. Vacuum pressure
Last Answer : Absolute pressure
Description : X-ray crystallographic analysis of an optically active compound determines its (A) Optical rotatory dispersive power (B) Absolute configuration (C) Relative configuration (D) Optical purity
Last Answer : (B) Absolute configuration
Description : What is the relative humidity when the absolute humidity is 3 grams per cubic meter and the air has a capacity of 12 grams per cubic meter? w) 4% x) 9% y) 25% z) 400%
Last Answer : ANSWER: Y -- 25%
Last Answer : Absolute humidity
Description : Heat stored in water vapour is (1) specific heat (2) latent heat (3) absolute heat (4) relative heat
Last Answer : latent heat