In an office with 21 staff members, 1/3 are men and 2/3 are women. To obtain a staff in which ¼ are men, how many women should be hired?
7
5
3
2
A magician wants to ship a magic wand to the location of his next show. The rectangular box he has available for his purpose measures 6 inches wide by 8 inches long by 10 inches high. What is the longest cylindrical wand to negligible diameter that can be shipped in this box?
10 inches
The price of sugar increased 20 percent in 2000 and 10 percent in 2001. By approximately what percent would the price at the end of 2001 have to be decreased to restore the price of the sugar to its pre-2000 price?
40%
35%
30%
24%
If the Moon were twice as massive as it is now, and it has stayed in the same orbital radius about the Earth as it has now, its new orbital period (in terms of its current orbital period T) would be,
T
T/2
T/4
2T
No heat loss occurs during flow of change in supper conductors because
Speed of charge is slow in it
It is bad conductor of heat
It offer zero resistance
It generate very small voltage
How do we know that fission isn’t responsible for the sun energy?
Fission doesn’t produce enough energy per gram of fuel.
If fission were going on it the sun, the sun would explode
If fission were going on in the sun, the sun’s mass would increase
There isn’t very much fissionable material in the sun
During calcinations of the ore
The lower oxides are converted into higher oxides
The metal gets oxidized to its highest oxide
Volatile impurities are expelled
Sulphur present in the ore is converted into SO2
Which of the following statements is NOT true regarding iron?
It is hard and brittle
It can be tempered
It cannot be welded
It contains 4-5% of carbon
The gas evolved in Bhopal tragedy was
CO
CO2
Methyl isocyanate
N2
Haemoglobin of the human blood form a stable complex compound with which of the following gas leading to death?
Oxygen
Carbon dioxide
Carbon monoxide
Nitrogen
Lathyrism due to consumption of kesri dal is characterised by
Skeletal deformation and thinning of collagen fibres
Skeletal deformities, diabetes mellitus and reproductive failure
Retarded growth, precocious puberty and renal dysfunction
Cardiovascular abnormalities, mental retardation and delayed puberty.
Mark the incorrect match
Nutrient-Iron; Deficiency-Anaemia; Symptom- Deficiency of haemoglobin in R.B.C.
Nutrient- Vitamin B1; Deficiency- Beri Beri; Symptom- Water logging of the tissue, paralysis
Nutrient- Vitamin B4; Deficiency- Pellagra; Symptom- Pigeon chest, loss of teeth
Nutrient- Vitamin C; Deficiency- Scurvy; Symptom- Loosening of teeth, swelling and bleeding of gums
None of these
How many spokes are there in the wheel of a sports car if any two spokes form an angle of 15º?
12
15
22
24
A girl was given two candles by her father for her birthday and was told that one candle would burn for six hours and the other, four hours. After they were both lit and allowed to burn for sometime, the girl noticed that one candle was twice as long as the other. State for how long the candles had been burning together?
2 hours
3 hours
4 hours
5 hours
17
27
37
47
Yes
No
Rhombus
Square
Each side of a rhombus is 5 cm and one of the diagonals is 8 cm. Calculate the length of another diagonal and the area of the rhombus.
8 cm, 32 cm2
6 cm, 24 cm2
4 cm, 16 cm2
7 cm, 28 cm2
5000
6250
6000
5400
1A, 2C, 3D, 4B
1B, 2D, 3A, 4C
1C, 2A, 3B, 4D
1D, 2B, 3C,4A
What does OCR stand for?
Optical Character Reader
Optical Character Recognition
Operational Character Reader
Only Character Reader
A person is standing on a staircase. He walks down 4 steps, up 3 steps, down 6 steps, up 2 steps, up 9 steps, and down 2 steps. Where is he standing in relation to the step on which he started?
2 steps above
1 step above
The same place
1 step below
A certain liquid fertilizer contains 10 percent mineral X by volume. If a farmer wishes to treat a crop with 3/4 of a litre of mineral X per acre, how many acres can be treated with 300 litres of the liquid fertilizer?
40
24
18
16
If the numerator of a fraction is decreased 25 percent and the denominator of that fraction is increased 25 percent, then the difference between the resulting and the original fractions represent what percentage decrease?
45%
40%
50%
60%
Suppose you are pushing a loaded shopping cart. Which of the following is true?
If action force always equals reaction force, you cannot move the cart because the cart pushes you backward just as hard as you push forward on the cart
You push the cart slightly harder than the cart pushed you backward, so the cart moves forward
You push before the cart has time to react, so the cart moves forward.
You are in contact with the earth through your high-friction shoes, while the cart is free to roll on its round wheels, so the cart moves.
For a particle executing simple harmonic motion, the equilibrium is at x = 0 and the amplitude at x = A. The kinetic energy of the particle will be equal to the potential energy
At x = 0
At x = A
At x = A/2
When x is greater than A/2 but less than A
Elements having the same number of valence electrons in their atoms have
Similar atomic sizes
Similar combining capacities
Similar metallic character
Similar chemical properties
What happens to the inertia of an object when its velocity is doubled?
The object’s inertia becomes 2 times greater
The object’s inertia becomes 4 times greater
The object’s inertia is unchanged
If a piece of rock is brought from the moon to the Earth, its
Volume, density and weight will remain the same as it was on the moon
Volume and weight will remain the same as it was on the moon
Volume and density will remain the same as it was on the moon.
Density and weight will remain the same as it was on the moon.
As compared to covalent compounds, electrovalent compounds generally have
Low melting points and low boiling points
Low melting points and high boiling points
High melting points and low boiling points
High melting points and high boiling points
Which of the following statements is incorrect?
The charge on an electron and on a proton is equal and opposite
Neutron has no charge
Electrons and protons have the same weight
The mass of a proton and a neutron are nearly identical.
Molten sodium chloride conducts electricity due to the presence of
Free molecules of NaCl
Free electrons
Free Na+ and Cl– ions
Free atoms of sodium and chlorine
Species X are chlorophyllous plants which are autotrophic in their mode of nutrition & may be green, yellow orange & red colour etc. Species X belongs to Y which are non-vascular plants and whose plant body is not differentiated into true roots, stems and leaves and have unicellular and non-jacked sex organs. In the above passage species Y is
Bryophyta
Thallophyta
Pteridophyta
Gymnosperms
(1 ( (2
(1 is the complement of (2
(1 is the supplement of (2
(1 and (2 are right angles
53º
137º
180º
233º
If a cylindrical barrel measures 22 cm in diameter, how many cm will it roll in 8 revolutions along a smooth surface?
121? cm
168? cm
176? cm
228? cm
120
154
168
336
Which graph shows y = –x2?
A
C
D
E
2700 cm2
80000 cm2
21000 cm2
81000 cm2
f against ?–1
f against ?
f against ?2
f2 against ?–1