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You Are On Question Answer Bank SET 2329
116451. The bicatalysts are?
Answer: Enzymes
116452. The enzymes are killed?
Answer: A t a very high; temperature
116453. Which is the following types of materials act as effective catalysts?
Answer: Transition metals
116454. A catalyst increases the rate of a chemical reaction by?
Answer: Decreasing the activation energy
116455. Efficiency of the catalyst depends on its?
Answer: Molecular state
116456. The information not conveyed by thermodynamics is about?
Answer: Rates of reactons
116457. Yeast, used in making bread is a?
Answer: Fungus
116458. Symbiotic association of mycorrhiza is between?
Answer: Fungi and root of higher plant
116459. Fungi grown on the bark of tree?
Answer: Corticoles
116460. Fungi which grow on cow dung are called?
Answer: Coprophilous
116461. The diesease late blight of potato is caused by?
Answer: Fungi
116462. The disease late blight of potato is caused by?
Answer: Phytophthora infestans
116463. Penicillum is a?
Answer: Fungi
116464. Fungi used in baking industry?
Answer: Saccharomyces cerevisial
116465. Early blight of potato is caused by?
Answer: Alternari solani
116466. Paraffin wax contractson solidification the melting point of wax?
Answer: Increases with increase of pressure
116467. A large iceberg melts at the base but not at the top because?
Answer: Higher pressure at the base lowers the melting point of ice
116468. During melting process the beat given to a body is utilised an open pan and allowed to evaporate. After somtims the temperature of water?
Answer: Decrease slightly
116469. The boiling point of a liquid is?
Answer: Both a) and b)
116470. A Closed bottle containing water at room temperature is taken to the moon and then the lid is opened. The water will?
Answer: Boil
116471. The relative humidity of air can decrease in spite of an increase in the absolute humidity when the?
Answer: Temperature rises
116472. Water evaporates at atmospheric pressure at a certain rate. If now the some water is placed in vaccum. The rate of evaporation?
Answer: Will increase
116473. If the atmospheric temperature and due point are nearly equal then?
Answer: The relative humidity is 100%
116474. If the temperature inside a room is increased, the relative humidity will?
Answer: Decrease
116475. A liquid boils at a temperature at which its saturated vapour pressure becomes?
Answer: Equal to the atmospheric pressure
116476. Energy Stored in the choke oil in the form of?
Answer: Magnetic energy
116477. The core of a transformer is laminated to reduce?
Answer: Eddy current loss
116478. Ampere rule is used to find the?
Answer: Direction of magnetic field
116479. A Compass needle just above a wire in which electrons are moving towards east, will point?
Answer: South
116480. A motor converts?
Answer: Electrical energy into mechanical energy
116481. Fleming’s right-hand rule gives?
Answer: The direction of the induced emf
116482. The intensity of a magnetic field is defined as the force experienced by a?
Answer: Unit north pole
116483. The split ring in motion is called?
Answer: Commutator
116484. In a hydel station the motion produced in turbines is due to the?
Answer: Flow of water
116485. The frequency of Ac mains in India is?
Answer: 50 Hz
116486. Neutrino is a particle which?
Answer: Has no charge but has spin
116487. The fusion of hydrogen into helium is more likely to take place?
Answer: At high temperature and high pressure
116488. In nuclear fission, the percentage of mass converted into energy is about?
Answer: 0.10%
116489. A good moderator should?
Answer: Be all above three
116490. Energy generation in stars is mainly due to?
Answer: Fusion of light nuclei
116491. In the photoelectric effect, the number of photoelectrons emitted is proportional to?
Answer: Intensity of incident beam
116492. The maximum number of photoelectrons released in photocell is independent of?
Answer: Intensity of incident beam
116493. When yellow light is incident on a surface no electrons are emitted while green light can emit. If the red light is incident on the surface then?
Answer: No electrons are emitted
116494. Matter waves are?
Answer: De Broglie wave
116495. The kilowatt is a unit to measure?
Answer: Power
116496. When the temperature is gradually decreased the specific heat of a substance is?
Answer: Decreased
116497. One joule is approximately equal to?
Answer: 0.24 cal
116498. At dew point RH is?
Answer: 50%
116499. The device used to measure very high temperature is?
Answer: Pyrometer
116500. A metal sheet with a circular hole is heated. The hole will?
Answer: Expand
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