KINGBEN1:
Pls What's going on I can't login into the portal for my registration ... anyone with same problem

I placed reg no and surname it's not loging in

Gracy3535:

ve u being able to get square root of 2, 13...

Strawberry001:
help, please, I need ui past questions. I applied for psychology

Strawberry001:
Is this thread only for science students?

DrBESTJC:

Yes...but the formula I discovered does not give the exact value....only the approximate value..

Eben331:
Download ur jamb subject combinations for UI Practice Questions in this link - http://sglivechat.com/forum2_theme_110615837.xhtml?tema=246

Strawberry001:
thanks Eben331

ikeepitreal:
please add me to the whatsapp group ooo this is like the 3rd time I'm begging
08185942804 abeg

Nltaliban:



Are you in whatsapp so I send a voice note?

I really can't type much

Eben331:
Thanks boss. What of the other question?

Eben331:
There is actually a way you can get the exact value of the square root of a number. To find the square root of a number x: _/x=(x/y+y)/2 Where x=the number whose square root is to be determined and y=the number which when squared give a perfect sqr close to x, that is, y^2 is close to x. This method must be repeated at least thrice. For example, (i) to find the sqrt of 2: x=2, y=1(since 1^2 is close to x) _/2=(2/1+1)/2=3/2=1.5. Repeat the method again but ur new y will be 1.5: (2/1.5+1.5)/2=(17/6)/2=17/12=1.42. Repeat the method the third time but ur new y will be 1.42: (2/1.42+1.42)/2=1.4142. You can keep repeating this method like dis. (ii) to find sqrt of 13: x=13, y=3(since 3^2 is a perfect square close to 13). _/13=(13/3+3)/2=11/3=3.7. Repeat the method again, (13/3.7+3.7)/2=3.61. Repeat the method again, (13/3.61+3.61)/2=3.60555. Repeat the method continuously.

DrBESTJC:


This is Smart!........but very technical and time consuming.
And
You will still need a calculator to do it, especially when big numbers are involved.

simplebb:


The best shot is to register for the Post UTME using Awaiting result and to write it then hope WAEC release his result.

Then ensure you keep checking while ensuring the following are correct too, that might be another cause.
1. Centre Number/Card. exam No. 2. Type of examination 3.
Examination year.

OyedejiIfedayo:
thanks a lot i understand.

Eben331:
I don't think it requires a calculator because one can use long division method to divide big numbers. It is just that this method is time consuming but it will be useful in exams.

DrBESTJC:
Quick Revision Questions In BIOLOGY

Answer all 25 questions in 20 minutes !

Test of Speed and Accuracy

Typical UI PostUTME Questions


1) The cell of an onion bulb can be differentiated from a cheek cell by the presence of:
A) Plasmalemma
√
B) Chloroplast
C) Cell wall
D) Nucleus

2) The membrane surrounding the vacuole in a plant cell is called the:
A) Plasmalemma
B) Tonoplast
√
C) Nuclear Membrane
D) Endoplasmic reticulum

3) The pioneer organisms in ecological succession are usually the :
A) Lichens
√
B) Algae
C) Ferns
D) Mosses

4) The umbrella-shaped fruiting body of a fully developed muchroom is the :
A) Mycelium
B) Basidium
C) Pileus
√
D) Stipe

5) The Cnidoblast cells found in Hydra are used for :
A) Reproduction
B) Offence and Defence
√
C) Locomotion and Nutrition
D) Food collection

6) In Spirogyra, the Pyrenoid :
A) Excretes wastes products
B) is suspended to cytoplasmic strands
C) is mainly used for respiration
D) makes the plant skinny to touch
E) usually contains starch
√

7) Amoeba moves by means of :
A) Cilia
B) Flagella
C) Pseudopodia
√
D) swimmerets

8 ) Which one of the following animals is NEVER secondary host of tapeworms ?
A) Cow
B) Fish
C) Pig
D) Man
√
E) Bat

9) The mosquito that transmits elephantiasis in humans is the :
A) Male Culex
B) Female aedes
C) Male aedes
D) Female Culex
√

10) In tilapia, the fins lying just behind the gill covers are :
A) Caudal
B) Pectoral
√
C) Pelvic
D) Anal

11) The mammalian organ through which nourishment and oxygen diffuses into a developing embryo is called :
A) Amnion
B) Chorion
C) Umbilical cord
D) Oviduct
E) Placenta
√

12) The mammalian vein which starts with and ends in a capillary network is the :
A) Pulmonary Vein
B) Mesenteric Vein
C) Renal Vein
D) Hepatic Portal Vein
√

13) The mode of nutrition in which digestion is extracellular is :
A) Holophytic
B) Parasitic
C) Holozoic
D) Saprophytic
√

14) Insectivorous plants trap and kill their prey to derive :
A) Phosphorus
B) Calcium
C) Nitrogen
√
D) Zinc

15) A young plant showing yellowing of leaves is likely to be deficient in :
A) Calcium
B) Magnesium
√
C) Potassium
D) Boron
E) Molybdenum

16) Which vitamin plays an important role in blood clotting ?
A) Vitamin A
B) Vitamin K
√
C) Vitamin B
D) Vitamin C

17) The part of the stomach nearer the gullet is called the :
A) Epiglottis
B) Cardiac Sphincter
√
C) Duodenum
D) Pyloric Sphincter

18) The digestive enzyme that coagulates proteins in milk is :
A) Ptyalin
B) Pepsin
C) Renin
√
D) Trypsin
E) Amylase

19) The mammalian heart chamber that pumps blood through the longest distance is the :
A) Right Auricle
B) Right Ventricle
C) Left Ventricle
√
D) Left Auricle

20) Excess water in plants is excreted as water vapour and as droplets respectively through :
A) Respiration and Guttation
B) Transpiration and Guttation
√
C) Photosynthesis and Guttation
D) Guttation and condensation.

21) An organism with double circulation is the :
A) Duck
B) Rat
√
C) Toad
D) Lizard

22) The glottis is the opening which leads to the :
A) Oesophagus
B) Larynx
C) Nostrils
D) Pharynx
√
E) Mouth

23) Lung books are used for respiration in :
A) Spiders
√
B) Insects
C) Millipedes
D) Snails

24) The gas produced during tissue respiration can be identified by using :
A) Calcium Hydroxide
√
B) Calcium Carbonate
C) Copper Sulphate
D) Sodium Hydroxide

25) Fatigue of leg muscles may occur after riding many kilometers on a bicycle because of :
A) Insufficient Glucose
B) Excess carbondioxide
C) Excess Protein
D) Insufficient oxygen.

DrBESTJC:


I think it is wrong because tension is a force whose unit is Newton...and spring balance measures weight not mass.


But you can still convert the value in Newton to gramms...thus
F = mg ...where m = F/g = 0.4/10 = 0.04Kg.
Then,multiply by 1000 to convert to gramms = 0.04 * 1000 = 40g

Aceed:



What is the upthrust on a body which displaces
0.6m^3 of water, 0.5m^3 of methylated spirit?
(density of water = 10^3 kgm^-3, density of
methylated spirit = 0.8 x 10^3 kgm^-3 and
g = 10ms^-2)

The horizontal door of a submarine at a depth of 500m has an area of 0.4m^2.
Calculate the force exerted by the sea water on the door at its depth.
(R.D of seawater = 1.03, atm = 1.01x 10^5Nm^-2, Density of pure water = 1000kgm^-3, g = 10ms^-2)

An object of mass 1kg falls a distance
of 5m onto a horizontal surface and
rebounds to a vertical height of 2m.
Calculate the change in momentum.

A man whose mass is 80kg stands on a
spring weighing machine inside an
elevator. What is the reading of the
weighing machine when the elevator is
coming to rest with a retardation of
4.0ms^-2?

A rocket of mass 1000kg containing a
propellant gas of 3000kg is to be
launched vertically. If the fuel is
consumed at a steady rate of 60kgs^-1,
calculate the least velocity of the
exhaust gases if the rocket and content
will just lift off the launching pad
immediately after firing.

A 15.0kg of monkey hangs from a cord
suspended from the ceiling of an elevator.
The cord can withstand a tension of 200N
and breaks as the elevator accelerates.
What was the elevator's minimum accleration
(in magnitude and direction)? g = 10ms^-2

A tractor of mass 5.0 x 10^3kg is used
to tow a car of mass 2.5 x 10^3kg. The
tractor moved with a speed of 3.0ms^-1 just
before the rope became taut. Calculate the
impulse in the rope when it jerks the car
into motion.



Oga DrBESTJC over to you