The solidifying agent commonly used in preparation of media is/are A-agar B-silica gel C-both (a) and (b) D-none of these

The solidifying agent commonly used in preparation of media is/are
A-agar
B-silica gel
C-both (a) and (b)
D-none of these
by

1 Answer

Answer :

both (a) and (b)
by

Related questions

Agar is used for solidifying culture media because A-it does not affect by the growth of bacteria B-it does not add to the nutritive properties of the medium C-the melting and solidifying points of agar solution are not the same D-all of the above

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Last Answer : all of the above

What is the Solidifying temp and melting temp of agar?

Description : What is the Solidifying temp and melting temp of agar?

Last Answer : Need answer

Most commonly employed test for determining the antibody titers for Newcastle disease infection in B A. Agar gel precipitation test B. Hemagglutination inhibition C. Polymerase chain reaction D. None of these

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Last Answer : Hemagglutination inhibition

Most commonly employed test for determining the antibody titers for AI infection is B A. Agar gel precipitation test B. Hemagglutination inhibition C. Polymerase chain reaction D. None of these

Description : Most commonly employed test for determining the antibody titers for AI infection is B A. Agar gel precipitation test B. Hemagglutination inhibition C. Polymerase chain reaction D. None of these

Last Answer : Hemagglutination inhibition

The concentration of agar to obtain semi solid media is A- 1.5-20%B- 0.5% or less C- >10% D- 10%but<20%

Description : The concentration of agar to obtain semi solid media is A- 1.5-20%B- 0.5% or less C- >10% D- 10%but

Last Answer : 0.5% or less

Silica gel is a - (1) moisturizer (2) flavouring agent (3) drying agent (4) delicious food

Description : Silica gel is a - (1) moisturizer (2) flavouring agent (3) drying agent (4) delicious food

Last Answer : (3) drying agent Explanation: Silica gel is a drying agent, meant to remove moisture from an enclosed space. It is a granular, vitreous, porous form of silicon dioxide made synthetically from ... bottles. The packets contain either granular silicic acid, which resembles sand, or tiny gel beads.

Silica gel is a (1) moisturizer (2) flavouring agent (3) drying agent (4) delicious food

Description : Silica gel is a (1) moisturizer (2) flavouring agent (3) drying agent (4) delicious food

Last Answer : drying agent

Mark the INCORRECT statement about agar, a gelling agent in plant tissue culture medium a. Not digested by plant enzymes b. It does not use in micro-propagation work c. It does not react with media constituents d. Remain stable at incubation temperature

Description : Mark the INCORRECT statement about agar, a gelling agent in plant tissue culture medium a. Not digested by plant enzymes b. It does not use in micro-propagation work c. It does not react with media constituents d. Remain stable at incubation temperature

Last Answer : b. It does not use in micro-propagation work

Which of the following is commonly used as liquid absorbent?  a. Silica gel  b. Activated alumina  c. Ethylene glycol  d. None of these

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A paper disc or small cylinder containing antibiotic is used in the antibiotic sensitivity assay known as the a. Tube dilution method. b. Immunodiffusion method. c. Agar diffusion method. d. Passive detection method.

Description : A paper disc or small cylinder containing antibiotic is used in the antibiotic sensitivity assay known as the a. Tube dilution method. b. Immunodiffusion method. c. Agar diffusion method. d. Passive detection method.

Last Answer : c. Agar diffusion method.

The is used to determine an antibiotic‘s minimal inhibitory concentration (NEC). a. Ames test b. tube dilution method c. agar disk diffusion method d. Kirby-Bauer test

Description : The is used to determine an antibiotic‘s minimal inhibitory concentration (NEC). a. Ames test b. tube dilution method c. agar disk diffusion method d. Kirby-Bauer test

Last Answer : b. tube dilution method

Viruses can be grown on _____. a. nutrient agar b. nutrient broth c. blood agar d. tissue culture

Description : Viruses can be grown on _____. a. nutrient agar b. nutrient broth c. blood agar d. tissue culture

Last Answer : d. tissue culture

.Bacteria having no flagella are unable to A- move B- reproduce C- stick to tissue surfaces D- grow in nutrient agar

Description : .Bacteria having no flagella are unable to A- move B- reproduce C- stick to tissue surfaces D- grow in nutrient agar

Last Answer : move

Which one of the following is NOT part of the streak-plate method? a. Making four sets of streaks on a plate. b. Diluting a mixed culture in molten agar. c. Using a mixed culture. d. Using a sterilized loop.

Description : Which one of the following is NOT part of the streak-plate method? a. Making four sets of streaks on a plate. b. Diluting a mixed culture in molten agar. c. Using a mixed culture. d. Using a sterilized loop.

Last Answer : b. Diluting a mixed culture in molten agar.

Which of the following is an absorbent? A.silica gel B. activated alumina C. both of the mentioned D. none of the mentioned

Description : Which of the following is an absorbent? A.silica gel B. activated alumina C. both of the mentioned D. none of the mentioned

Last Answer : ANSWER : C

What is the color before using silica gel ?

Description : What is the color before using silica gel ?

Last Answer : Silica gel is brown or light in color before application.

Why is silica gel used in breeders ?

Description : Why is silica gel used in breeders ?

Last Answer : Answer : Silica gel absorbs fumes from the air as it enters the breather. It is a type of chemical substance.

The volume of nitrogen gas Um (measured at STP) required to cover a sample of silica get with a mono-molecular layer is `129 cm^(3) g^(-1)` of gel. Ca

Description : The volume of nitrogen gas Um (measured at STP) required to cover a sample of silica get with a mono-molecular layer is `129 cm^(3) g^(-1)` of gel. Ca

Last Answer : The volume of nitrogen gas Um (measured at STP) required to cover a sample of silica get with a mono-molecular layer ... `16.2 xx 10^(-20) m^(2).`

When air passes through silica gel, A. it absorbs water vapour molecules B. latent heat of condensation is released C.dbt of air increases D. all of the mentioned

Description : When air passes through silica gel, A. it absorbs water vapour molecules B. latent heat of condensation is released C.dbt of air increases D. all of the mentioned

Last Answer : ANSWER : D

A 'breath test' used by traffic police to check drunken driving uses: (1) potassium dichromate-sulphuric acid (2) potassium permanganate-sulphuric acid (3) turmeric on filter paper (4) silica gel coated with silver nitrate

Description : A 'breath test' used by traffic police to check drunken driving uses: (1) potassium dichromate-sulphuric acid (2) potassium permanganate-sulphuric acid (3) turmeric on filter paper (4) silica gel coated with silver nitrate

Last Answer : (1) potassium dichromatesulphuric acid Explanation: The main constituent of alcohol is Ethanol and the concentration of ethanol in a sample can be determined by back titration with acidified potassium ... contact with the yellow dichromate-coated crystals, the color changes from yellow to green.

Which of the listed procedures should be carried out to prevent moisture damage to electrical apparatus during extended periods of idleness? A. Fill the motor housing with CO2 to inert the space. B. Strap silica gel around the commutator. C. Place heat lamps in the motor housings. D. Cover the equipment with a canvas tarpaulin.

Description : Which of the listed procedures should be carried out to prevent moisture damage to electrical apparatus during extended periods of idleness? A. Fill the motor housing with CO2 to inert the space. B. Strap ... C. Place heat lamps in the motor housings. D. Cover the equipment with a canvas tarpaulin.

Last Answer : Answer: C

Why Silica gel is used in transformers?

Description : Why Silica gel is used in transformers?

Last Answer : Silica Gel is used to remove the moisture in the air entering in to the transformer. During the breathing of the transformer air enters in to the transformer. This air makes contact with the hot ... Silica gel crystals will be in blue color initially and after absorbing moisture it turns to pink.

What is the colour of silica gel in dry stage and when saturated with moisture in a breather?

Description : What is the colour of silica gel in dry stage and when saturated with moisture in a breather?

Last Answer : Dry stage – Deep blue Saturated stage – Whitish pink

Why silica gel is used in breather?

Description : Why silica gel is used in breather?

Last Answer : The silica gel is used to absorb the moisture when the air is drawn from the atmosphere in to the transformer.

Catalyst used in the catalytic cracking is (A) Silica-alumina (B) Silica gel (C) Vanadium pentoxide (D) Nickel

Description : Catalyst used in the catalytic cracking is (A) Silica-alumina (B) Silica gel (C) Vanadium pentoxide (D) Nickel

Last Answer : (A) Silica-alumina

Catalyst used in alkylation process is (A) Sulphuric acid (B) Nickel (C) Silica gel (D) Alumina

Description : Catalyst used in alkylation process is (A) Sulphuric acid (B) Nickel (C) Silica gel (D) Alumina

Last Answer : (A) Sulphuric acid

The most common filter aid is (A) Diatomaceous earth (B) Calcium silicate (C) Sodium carbonate (D) Silica gel

Description : The most common filter aid is (A) Diatomaceous earth (B) Calcium silicate (C) Sodium carbonate (D) Silica gel

Last Answer : (A) Diatomaceous earth

At equilibrium the concentration of water in vapour phase (C* ) in kg/m3 of air space and the amount of water (m) adsorbed per kg of dry silica gel are related by, C* = 0.0667m. To maintain dry conditions in a room of air space 100m3 containing 2.2 kg of water vapour initially, 10 kg of dry silica gel is kept in the room. The fraction of initial water remaining in the air space after a long time (during which the temperature is maintained constant) is (A) 0.0 (B) 0.2 (C) 0.4 (D) 1.0

Description : At equilibrium the concentration of water in vapour phase (C* ) in kg/m3 of air space and the amount of water (m) adsorbed per kg of dry silica gel are related by, C* = 0.0667m. To maintain dry conditions in a room ... which the temperature is maintained constant) is (A) 0.0 (B) 0.2 (C) 0.4 (D) 1.0

Last Answer : (C) 0.4

Which of the following adsorbent is used in the refining of sugar? (A) Bone charcoal (B) Wood charcoal (C) Silica gel (D) Activated clay

Description : Which of the following adsorbent is used in the refining of sugar? (A) Bone charcoal (B) Wood charcoal (C) Silica gel (D) Activated clay

Last Answer : (A) Bone charcoal

Which of the following adsorbent is used to decolourise yellow glycerine? (A) Silica gel (B) Alumina (C) Fuller's earth (D) Activated carbon

Description : Which of the following adsorbent is used to decolourise yellow glycerine? (A) Silica gel (B) Alumina (C) Fuller's earth (D) Activated carbon

Last Answer : (D) Activated carbon

Large quantity of silica gel is normally dried in a __________ dryer. (A) Freeze (B) Through circulation (C) Rotary vacuum (D) Tray

Description : Large quantity of silica gel is normally dried in a __________ dryer. (A) Freeze (B) Through circulation (C) Rotary vacuum (D) Tray

Last Answer : (B) Through circulation

Explain the operation of silica gel breather.

Description : Explain the operation of silica gel breather. 

Last Answer : Silica gel breather is used in a transformer to provide dry atmospheric air to the conservator when transformer breathes. The breather consists of an inner container and outer container. The inner container contains silica ... of 250º F to 300º F till the deep blue colour of silica gel is got back.

What is the colour of silica gel in dry stage and when saturated with moisture in a breather?

Description : What is the colour of silica gel in dry stage and when saturated with moisture in a breather?

Last Answer : Dry stage – Deep blue. Saturated stage – Whitish pink. 

Which adsorbent is used for removing sulphur compounds (S Q, H2S, RSH etc.) removal from coke oven gas in by-products recovery plant? (A) Silica gel (B) Diatomaceous earth (C) Basalt (D) Bog iron (i.e., moist ferric hydroxide)

Description : Which adsorbent is used for removing sulphur compounds (S Q, H2S, RSH etc.) removal from coke oven gas in by-products recovery plant? (A) Silica gel (B) Diatomaceous earth (C) Basalt (D) Bog iron (i.e., moist ferric hydroxide)

Last Answer : (D) Bog iron (i.e., moist ferric hydroxide)

Coke oven gas is stripped of its H2S and mercaptans content by (A) Absorption in wash oil (B) Adsorption on bog iron bed (C) Bubbling it through dilute sulphuric acid (D) Adsorption on silica gel

Description : Coke oven gas is stripped of its H2S and mercaptans content by (A) Absorption in wash oil (B) Adsorption on bog iron bed (C) Bubbling it through dilute sulphuric acid (D) Adsorption on silica gel

Last Answer : (B) Adsorption on bog iron bed

The catalyst used in shift converter is (A) Nickel (B) Vanadium (C) Silica gel (D) Alumina

Description : The catalyst used in shift converter is (A) Nickel (B) Vanadium (C) Silica gel (D) Alumina

Last Answer : (A) Nickel

Catalyst used in desulphurisation of naphtha is (A) Co-Mo (B) Pt-Rh (C) Silica gel (D) Nickel

Description : Catalyst used in desulphurisation of naphtha is (A) Co-Mo (B) Pt-Rh (C) Silica gel (D) Nickel

Last Answer : (A) Co-Mo

Catalyst used in Haber's process for ammonia production is (A) Reduced iron oxide (B) Nickel (C) Vanadium pentoxide (D) Silica gel

Description : Catalyst used in Haber's process for ammonia production is (A) Reduced iron oxide (B) Nickel (C) Vanadium pentoxide (D) Silica gel

Last Answer : (A) Reduced iron oxide

Catalyst used in steam reforming of naphtha is (A) Nickel (B) Platinum (C) Silica gel (D) Rhodium

Description : Catalyst used in steam reforming of naphtha is (A) Nickel (B) Platinum (C) Silica gel (D) Rhodium

Last Answer : (A) Nickel

H2S present in gaseous stream can be removed by adsorption on (A) Silica gel (B) Active carbon (C) Bog iron (D) Limestone powder

Description : H2S present in gaseous stream can be removed by adsorption on (A) Silica gel (B) Active carbon (C) Bog iron (D) Limestone powder

Last Answer : (C) Bog iron

Which of the following is an adsorbent for removal of nitrogen oxides from gas/air? (A) Active carbon (B) Silica gel (C) Bog iron (iron oxide) (D) Pulverised limestone

Description : Which of the following is an adsorbent for removal of nitrogen oxides from gas/air? (A) Active carbon (B) Silica gel (C) Bog iron (iron oxide) (D) Pulverised limestone

Last Answer : (B) Silica gel

Which of the following is an adsorbent used for the removal of SO2 from gas/air? (A) Bog iron (B) Limestone powder or alkalised alumina (C) Silica gel (D) Active carbon

Description : Which of the following is an adsorbent used for the removal of SO2 from gas/air? (A) Bog iron (B) Limestone powder or alkalised alumina (C) Silica gel (D) Active carbon

Last Answer : (B) Limestone powder or alkalised alumina

The catalyst used in the production of elemental sulphur from H2S (by oxidation-reduction) is (A) Alumina (B) Silica gel(C) Platinum(D) Nickel

Description : The catalyst used in the production of elemental sulphur from H2S (by oxidation-reduction) is (A) Alumina (B) Silica gel (C) Platinum (D) Nickel

Last Answer : (A) Alumina

The catalyst used in shift converter is (A) Nickel (B) Vanadium (C) Silica gel (D) Alumina

Description : The catalyst used in shift converter is (A) Nickel (B) Vanadium (C) Silica gel (D) Alumina

Last Answer : (A) Nickel

Wet chlorine gas produced during electrolysis of brine is dehydrated by (A) Spraying 66° Be H2SO4 counter current to the flow of the gas (B) Passing it through a bed of diatomaceous earth (C) Passing it through a bed of silica gel (D) None of these

Description : Wet chlorine gas produced during electrolysis of brine is dehydrated by (A) Spraying 66° Be H2SO4 counter current to the flow of the gas (B) Passing it through a bed of diatomaceous earth (C) Passing it through a bed of silica gel (D) None of these

Last Answer : (A) Spraying 66° Be H2SO4 counter current to the flow of the gas

The chemical used in breather is A. Asbestos fibre B. Silica sand C. Sodium chloride D. Silica gel

Description : The chemical used in breather is A. Asbestos fibre B. Silica sand C. Sodium chloride D. Silica gel

Last Answer : Silica gel

A ‘breath test’ used by traffic police to check drunken driving uses: (1) potassium dichromate-sulphuric acid (2) potassium perma-nganatesulphuric acid (3) turmeric on filter paper (4) silica gel coated with silver nitrate

Description : A ‘breath test’ used by traffic police to check drunken driving uses: (1) potassium dichromate-sulphuric acid (2) potassium perma-nganatesulphuric acid (3) turmeric on filter paper (4) silica gel coated with silver nitrate

Last Answer : potassium dichromate-sulphuric acid

What is the colour of silica gel in transformer?

Description : Options: A) Yellow B) No colour C) White D) Blue

Last Answer : Correct Answer: D) Blue

Surface preparation for Metallising the abrasives used for final cleaning is a) Chilled iron grit G.24, as defined in BS : 2451 b) Washed salt free angular silica sand of mesh size 12 to 30 with a minimum of 40% retained on a 20 mesh c) either (a) or (b) * d) d) neither (a) or (b)

Description : Surface preparation for Metallising the abrasives used for final cleaning is a) Chilled iron grit G.24, as defined in BS : 2451 b) Washed salt free angular silica sand of mesh size 12 to 30 with a minimum of 40% retained on a 20 mesh c) either (a) or (b) * d) d) neither (a) or (b)

Last Answer : c) either (a) or (b) *

What serologicaL test requires sheep red blood cells and a preparation of antibodies that recognizes the sheep red blood ceLls? a. ELISA b. Radioimmunoassay c. Immunodiffusion d. Complement fixation test

Description : What serologicaL test requires sheep red blood cells and a preparation of antibodies that recognizes the sheep red blood ceLls? a. ELISA b. Radioimmunoassay c. Immunodiffusion d. Complement fixation test

Last Answer : d. Complement fixation test