All questions of Practice Tests for Electrical Engineering (EE) Exam

Yes ,early atmosphere was reducing type and had no gases like oxygen. Early organisms were anerobic.

Take up two electrons..

Yes peritubular capillaries arise from efferent arteriole of glomerular capsule and help in reabsorption of filterate.

Increase in CO2 level in blood triggers the respiratory center of medulla oblongata to increase the rate of beating.
Hence A is right.

Function of Gibberellins -

Internodes elongation

Bolting

Promotes seed germination

Promotes flowing in long day plants and inhibit it in short day plants.

Delay Senescene

Induce parthenocarpy in pome fruits

Break bud and seed dormancy 

- wherein

Commercially used to increase yield of malt from barley.

 

 Gibberellins promotes seed germination and secretes enzyme to break stored food in seed

-M , -I increases the stability of phenol and +M , + I decreases the stability of phenol

Lichens are the association of algae nd fungi. They are sensitive to SO2 i. e. will not grow in its presence. These are called pollution indicators they don't grow in polluted areas.

To 4) and select the one that best represents the meaning of the original text:

1) There are many different types of birds, such as eagles, sparrows, and parrots.
2) Birds have wings and feathers, which allow them to fly.
3) Birds are warm-blooded animals that lay eggs and have beaks.
4) Birds are vertebrate animals that belong to the class Aves.

Option (1),(2),(3),(6) is correct.
incorrect options are (4),(5).
*(4)-Amount of biodegradable organic matter in sewage is estimated by measuring BOD.
*(5)- BIOMAGNIFICATION :
A few toxic substances often present in industrial waste water can undergo biological magnification in the aquatic food chain. It refers to increase in concentration of toxitant at successive tropic levels.
In biomagnification the toxic substances are cannot be metabolised or excreted.

OptionD
2H2O___H2+02
therefore 2*96500

Beryllium hydroxide and zinc hydroxide are atmospheric in nature because they react with both acid and base.
So option " D " island correct answer.

Little leaf, or witches' broom, is a disease of sweetpotato caused by a mycoplasma-like organism. Affected plants have small, thickened and sometimes chlorotic young leaves which may be mistaken for zinc deficiency.

Lepidosiren paradoxa is also called the South American lungfish. It is a freshwater and single species of the lungfish found in swamps and slows moving waters of Amazon, Parguay and lower Parona river basins in South America. They burrow into mud during the dry season. Thus, the correct answer is option'C'.

Endoenzymes are the enzymes which functions inside the cell. It is secreted inside the cell and catalyzes the reaction inside the cell. Hexokinase and glycogen synthase are two endoenzyme. The optimum pH for theendoenzyme is neutral.

Here IVF stands for in vitro fertilization so it will occur outside the body i.e in culture medium.

Collagen is exposed when a vessel wall is injured.platelets adhere to the site of injury.von willebrand factor helps platelets to adhere to the exposed collagen and to the platelet receptor complex.due to platelet adhesion to the site of injury,they get activated and a signalling cascade initiates.the stimulated platelets release contents of their granules,which generate thrombin formation on their surface leading to platelet aggregate and a hemostatic plug formation.

As apposition means the positioning of things side by side or close together....

Because mg requires specific carrier system to be absorbed by the intestinal cells.about 50% of dietary mg is normally absorbed.

-13.6 eV, then the energy required to excite the electron to n = 4 state can be calculated using the formula:

En = -13.6 eV/n^2

For n = 1, En = -13.6 eV/1^2 = -13.6 eV

For n = 4, En = -13.6 eV/4^2 = -0.85 eV

The energy required to excite the electron from n = 1 to n = 4 is the difference between the energies of these two states:

ΔE = En - E1 = (-0.85 eV) - (-13.6 eV) = 12.75 eV

Therefore, the energy required to excite the electron from n = 1 to n = 4 is 12.75 eV.

When two waves of same frequency and intensity with opposite phase superimpose there will b destructive interference and intensity will become zero.

In a clamper circuit, the primary purpose is to shift the DC level of the input signal without altering the shape of the signal. This is achieved by adding a DC bias to the input signal. The necessary components in a clamper circuit include a diode, a capacitor, and a resistor.

- Diode: The diode is an essential component in a clamper circuit as it allows the flow of current in one direction while blocking it in the opposite direction. It helps in shifting the DC level of the input signal by allowing the capacitor to charge or discharge through it.

- Capacitor: The capacitor is another necessary component in a clamper circuit. It is connected in parallel to the diode and is charged or discharged depending on the input signal. The capacitor stores the charge and releases it during the negative half-cycle of the input signal, thereby shifting the DC level of the signal.

- Resistor: The resistor is also an important component in a clamper circuit. It is connected in series with the diode and capacitor. The resistor limits the current flowing through the circuit and helps in stabilizing the voltage across the capacitor.

- Independent DC Supply: The independent DC supply is not a necessary component in a clamper circuit. It is not required because the purpose of a clamper circuit is to shift the DC level of the input signal using the existing components. The diode, capacitor, and resistor work together to achieve this without the need for an additional DC supply.

Therefore, the correct answer is option 'D' - Independent DC Supply.

It is not possible to determine the value of vi at which the clipping begins without additional information about the circuit. The clipping voltage depends on the specific characteristics and parameters of the circuit, such as the diode threshold voltage or the supply voltage.

All 10 chromosomes of maize (Zea mays, 2n = 2x = 20) were recovered as single additions to the haploid complement of oat (Avena sativa, 2n = 6x = 42) among F1 plants generated from crosses involving three different lines of maize to eight different lines of oat. In vitro rescue culture of more than 4,300 immature F1 embryos resulted in a germination frequency of 11% with recovery of 379 F1 plantlets (8.7%) of moderately vigorous growth. Some F1 plants were sectored with distinct chromosome constitutions among tillers of the same plant and also between root and shoot cells. Meiotic restitution facilitated development of un-reduced gametes in the F1. Self-pollination of these partially fertile F1 plants resulted in disomic additions (2n = 6x + 2 = 44) for maize chromosomes 1, 2, 3, 4, 6, 7, and 9. Maize chromosome 8 was recovered as a monosomic addition (2n = 6x + 1 = 43). Monosomic additions for maize chromosomes 5 and 10 to a haploid complement of oat (n = 3x + 1 = 22) were recovered several times among the F1plants. Although partially fertile, these chromosome 5 and 10 addition plants have not yet transmitted the added maize chromosome to F2offspring. We discuss the development and general utility of this set of oat-maize addition lines as a novel tool for maize genomics and genetics.

Sexual inter-species hybridization is a powerful tool for understanding genome structure and interaction in higher plants. Breaking through inter-species incompatibility also enables chromosome engineering with horizontal (species-to-species) transfer of characters to which plant researchers and breeders have no access when utilizing only intraspecies gene pools. The more remotely related the parental genomes, the more the gene pool may be enriched.

Most of the favored host plants for chromosome engineering are allopolyploids or amphidiploids. Although in rare cases pure diploid species do tolerate alien chromosome additions, e.g. rye (Secale cereale; Kynast, 1986), the redundancy provided by homoeologs in polyploids is expected to better compensate for the loss of genetic information from alien substitution or translocation. Once stabilized as a disomic addition, the alien chromosome pair is transmitted consistently in the majority of the plants (Riley, 1960).

The equivalent focal length of huygens eye piece is 3f/2 the distance between eye piece and object pieces is 2f and focal lengths are in the ratio 1:3 so, the we get 3f/2

Pineal body

Leguminous plAnt