Soil salinity is measured by: (a) Potometer (b) Porometer (c) Conductivity meter (d) Calorimeter

Soil salinity is measured by: (a) Potometer (b) Porometer (c) Conductivity meter (d) Calorimeter
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Salinity of soil is measured by

Description : Salinity of soil is measured by

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Description : Dryness factor of steam is defined as the ratio of the mass of vapor in the mixture to the mass of the mixture. Dryness factor of steam is measured by a __________ calorimeter. (A) Bomb (B) Throttling (C) Junker's (D) Boy's

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Last Answer : Ans. ((c))

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Description : Potometer works on the principle of (a) osmotic pressure (b) amount of water absorbed equals the amount transpired (c) root pressure (d) potential difference between the tip of the tube and that of the plant.

Last Answer : (b) amount of water absorbed equals the amount transpired

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Description : The principal cause of soil damage in Punjab and Haryana is (a) Deforestation (b) Soil erosion (c) Excessive cultivation (d) Salinity and water logging

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Which of the following indicates the types of soil erosion in decreasing order of damage caused In India (a) Ravine erosion .and gullies, alkalinity and salinity weeds and water-logging (b) Alkalinity and water-logging, ravine erosion and weeds (c) Water-logging, weeds, salinity and ravine erosion (d) All are equally damaging

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Which of the following crops is tolerant of soil on water salinity ? (A) Date-palm (B) Cabbage (C) Orange (D) Grapes(E) Peas

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Central Soil Salinity Research Institute is located at – 1) Karnal 2) Bihar 3) Dehradun 4) Jodhpur

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The factor influencing process of flowerings is: (a) Amount of chlorophyll (b) Soil water (c) Soil pH (d) Photoperiod

Description : The factor influencing process of flowerings is: (a) Amount of chlorophyll (b) Soil water (c) Soil pH (d) Photoperiod

Last Answer : Ans. ((d))

Thermal algae can live in: (a) Saline soil (b) Hot water streams of 70°C (C) Deserts (d) Snow balls

Description : Thermal algae can live in: (a) Saline soil (b) Hot water streams of 70°C (C) Deserts (d) Snow balls

Last Answer : Ans. ((b))

Insectivorous plants grow in: (a) Nitrogen rich soil (b) Nitrogen deficient soil (c) Potassium deficient soil (d) Carbohydrate rich soil

Description : Insectivorous plants grow in: (a) Nitrogen rich soil (b) Nitrogen deficient soil (c) Potassium deficient soil (d) Carbohydrate rich soil

Last Answer : Ans. ((b))

Minerals in soil body come from a. Weathering of rocks b. Wind and water c. Rains d. Dead organic remains

Description : Minerals in soil body come from a. Weathering of rocks b. Wind and water c. Rains d. Dead organic remains

Last Answer : a. Weathering of rocks

Spraying of DDT produces pollution of a) Air b) Air and Water c) Air and Soil d) Air, Water and Soil.

Description : Spraying of DDT produces pollution of a) Air b) Air and Water c) Air and Soil d) Air, Water and Soil. 

Last Answer : d) Air, Water and Soil.

Seed treatment is done to control— a) Soil-borne disease b) Air-borne disease c) Seed-borne disease d) None of these

Description : Seed treatment is done to control— a) Soil-borne disease b) Air-borne disease c) Seed-borne disease d) None of these

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Pudding is done to a) Reduce percolation of water b) Pulverise and levelling soil c) Kill weeds D) All of the above

Description : Pudding is done to a) Reduce percolation of water b) Pulverise and levelling soil c) Kill weeds D) All of the above 

Last Answer : D) All of the above 

The process by which nutrient chemicals or contaminants are dissolved and carried away by water, or are moved into a lower layer of soil a) Mulching b) Desertification c) Incineration d) Leaching

Description : The process by which nutrient chemicals or contaminants are dissolved and carried away by water, or are moved into a lower layer of soil a) Mulching b) Desertification c) Incineration d) Leaching

Last Answer : d) Leaching

Water logging of soil makes it physiologically dry because- (a) This condition does not allow the capillary force to work b) this condition does not allow oxygen to enter the soil C) both (a) and (b) d) none of these

Description : Water logging of soil makes it physiologically dry because- (a) This condition does not allow the capillary force to work b) this condition does not allow oxygen to enter the soil C) both (a) and (b) d) none of these 

Last Answer : b) this condition does not allow oxygen to enter the soil

A low branch with a node is bent down and covered with soil in a) Marcotting b) Layering c)Cutting d) Budding

Description : A low branch with a node is bent down and covered with soil in a) Marcotting b) Layering c)Cutting d) Budding

Last Answer : b) Layering

Mycorrhizae is associated with the following a) Formation of root nodules b) Hyphae penetrating the soil c) Found mostly in lower plants d) Soil erosion

Description : Mycorrhizae is associated with the following a) Formation of root nodules b) Hyphae penetrating the soil c) Found mostly in lower plants d) Soil erosion

Last Answer : a) Formation of root nodules

What does a conductivity meter measure?

Description : What does a conductivity meter measure?

Last Answer : An conductivity meter is an instrument that helps measure the electrical conductivity in a solution, which again is a material's ability to conduct an electric current. It finds extensive use in measuring and controlling the amount of nutrients, salts or impurities in the water

Describe conductivity meter.

Description : Describe conductivity meter.

Last Answer : Conductivity meter: It is used to measure conductivity of a solution. Two electrodes (platinum plates) are placed in a sample, a potential is applied across the electrodes, and the current is ... the solution and then the conductivity of the solution using the conductance and cell constant.

Write principle of conductivity meter and Abbes refractometer.

Description : Write principle of conductivity meter and Abbes refractometer.

Last Answer : Principle of conductivity meter: Two electrodes (platinum plates) are placed in a sample , a potential is applied across the electrodes, and the current is measured. Principle of Abbe's ... the sample is brought into contact with the medium of a known refractive index (measuring prism).

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

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Last Answer : (C) Specific gravity

What is a calorimeter ?

Description : What is a calorimeter ?

Last Answer : A simple calorimeter is used to diagnose acid-base mitigation enthalpy. The common calorimeter is a glass beaker , which is housed in another large glass beaker. The space between the two beakers is ... . A glass beaker is inserted through a hole and a thermometer is inserted through another hole.

calorimeter Principles What ?

Last Answer : If Multiple Of the object In Them Outside Other Somewhere From Heat These Inside No. Comes Or These Inside From No Heat Outside No. Yes , they do In No Chemical Reaction No. Happens , then Of energy Conservatism Formula To be We Pie , accepted Heat = deprived Heat.

In order to find the specific heat capacity of an unknown material a 50 g piece is heated to 80 degrees Celsius and fully immersed in a well insulated calorimeter filled with 100 g of water at 10 degr?

Description : In order to find the specific heat capacity of an unknown material a 50 g piece is heated to 80 degrees Celsius and fully immersed in a well insulated calorimeter filled with 100 g of water at 10 degr?

Last Answer : Assuming that the full question, which the questioner failed to post, is given in the Discussion, below.Taking the specific heat capacity of water as 4.2 Joules per gram per degree C, the metal has a specific heat capacity as approx 0.68 Joules/(g °C).

Calorific value of proteins in a living person is less than that in a bomb calorimeter because (A) Digestion and absorption of proteins is less than 100% (B) Respiratory quotient of proteins is less than 1 (C) Specific dynamic action of proteins is high (D) Proteins are not completely oxidized in living persons

Description : Calorific value of proteins in a living person is less than that in a bomb calorimeter because (A) Digestion and absorption of proteins is less than 100% (B) Respiratory quotient of proteins ... Specific dynamic action of proteins is high (D) Proteins are not completely oxidized in living persons

Last Answer : Answer : D

Calorific value of proteins as determined in a bomb calorimeter is (A) 4 kcal/gm (B) 4.8 kcal/gm (C) 5.4 kcal/gm (D) 5.8 kcal/gm

Description : Calorific value of proteins as determined in a bomb calorimeter is (A) 4 kcal/gm (B) 4.8 kcal/gm (C) 5.4 kcal/gm (D) 5.8 kcal/gm

Last Answer : Answer : C

Which heating value is indicated by a calorimeter and why ?

Description : Which heating value is indicated by a calorimeter and why ?

Last Answer : Gross heating value because steam is condensed and heat of vapour formed is recovered.

The best method of determining sulphur in crude oil is by the __________ method. (A) Kjeldahl (B) Dumas (C) Bomb calorimeter (D) Junkers calorimeter

Description : The best method of determining sulphur in crude oil is by the __________ method. (A) Kjeldahl (B) Dumas (C) Bomb calorimeter (D) Junkers calorimeter

Last Answer : (C) Bomb calorimeter

The 'bomb' in the bomb calorimeter is made of (A) Molybdenum stainless steel(B) Mild steel(C) High silicon iron (14% Si)(D) Copper

Description : The 'bomb' in the bomb calorimeter is made of (A) Molybdenum stainless steel (B) Mild steel (C) High silicon iron (14% Si) (D) Copper

Last Answer : (A) Molybdenum stainless steel

An instrument commonly used for the measurement of atmospheric pressure is known as A. Manometer B. Barometer C. Calorimeter D. Potentiometer

Description : An instrument commonly used for the measurement of atmospheric pressure is known as A. Manometer B. Barometer C. Calorimeter D. Potentiometer

Last Answer :  Barometer

During its calorific value determination by bomb calorimeter, coal is combusted by (A) Air (B) Oxygen (C) Oxygen enriched air (D) None of these

Description : During its calorific value determination by bomb calorimeter, coal is combusted by (A) Air (B) Oxygen (C) Oxygen enriched air (D) None of these

Last Answer : (C) Oxygen enriched air

Calorific values of both the solid as well as the liquid fuels can be determined by __________ calorimeter. (A) Bomb (B) Boy's (C) Junkers (D) None of these

Description : Calorific values of both the solid as well as the liquid fuels can be determined by __________ calorimeter. (A) Bomb (B) Boy's (C) Junkers (D) None of these

Last Answer : (A) Bomb

Junker's calorimeter is used to determine the calorific value of (A) Pulverised coal (B) Gaseous fuels (C) Fuel oil (D) None of these

Description : Junker's calorimeter is used to determine the calorific value of (A) Pulverised coal (B) Gaseous fuels (C) Fuel oil (D) None of these

Last Answer : (B) Gaseous fuels

Bomb calorimeter is used to determine the (where, GCV - Gross Calorific Value. NCV - Net Calorific Value.) (A) GCV at constant pressure (B) GCV at constant volume (C) NCV at constant pressure (D) NCV at constant volume

Description : Bomb calorimeter is used to determine the (where, GCV - Gross Calorific Value. NCV - Net Calorific Value.) (A) GCV at constant pressure (B) GCV at constant volume (C) NCV at constant pressure (D) NCV at constant volume

Last Answer : (C) NCV at constant pressure

Bomb calorimeter is used for the determination of calorific value of the __________ fuels. (A) Gaseous (B) Solid(C) Liquid(D) Both (B) and (C)

Description : Bomb calorimeter is used for the determination of calorific value of the __________ fuels. (A) Gaseous (B) Solid (C) Liquid (D) Both (B) and (C)

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

Calorific value as determined by bomb calorimeter is the (A) Higher calorific value at constant volume(B) Gross calorific value at constant pressure(C) Lower calorific value at constant pressure(D) Net calorific value at constant volume

Description : Calorific value as determined by bomb calorimeter is the (A) Higher calorific value at constant volume (B) Gross calorific value at constant pressure (C) Lower calorific value at constant pressure (D) Net calorific value at constant volume

Last Answer : (A) Higher calorific value at constant volume

Initial pressure of oxygen introduced into the 'bomb' of the bomb calorimeter for determination of calorific value of coal/fuel oil may be around __________ atm. (A) 3-5 (B) 25-30 (C) 60-65 (D) 95-100

Description : Initial pressure of oxygen introduced into the 'bomb' of the bomb calorimeter for determination of calorific value of coal/fuel oil may be around __________ atm. (A) 3-5 (B) 25-30 (C) 60-65 (D) 95-100

Last Answer : (B) 25-30

Calorific value of both the solid & liquid fuels can be determined by using __________ calorimeter. (A) Junker's (B) Bomb (C) Boy's (D) None of these

Description : Calorific value of both the solid & liquid fuels can be determined by using __________ calorimeter. (A) Junker's (B) Bomb (C) Boy's (D) None of these

Last Answer : (B) Bomb

The main reason for making the copper calorimeter (used in bomb calorimeter) silvery white and shining/polished is to (A) Minimise its corrosion (B) Avoid radiation heat loss (C) Make it look attractive (D) None of these

Description : The main reason for making the copper calorimeter (used in bomb calorimeter) silvery white and shining/polished is to (A) Minimise its corrosion (B) Avoid radiation heat loss (C) Make it look attractive (D) None of these

Last Answer : (B) Avoid radiation heat loss

Bomb calorimeter can be used to determine the __________ of the coal. (A) Sulphur content (B) Calorific value (C) Both (A) & (B) (D) Neither (A) nor (B)

Description : Bomb calorimeter can be used to determine the __________ of the coal. (A) Sulphur content (B) Calorific value (C) Both (A) & (B) (D) Neither (A) nor (B)

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