Air can enter the body and travel to the lungs...

• A) through the oesophagus and gullet
• B) through the mouth and the nose
• C) through the nose and the nervous system
• D) through the windpipe and the pores

A motor pumps 4,000 kg of water from a ground tank to an overhead tank 50 m up in one hour. The power of the motor is:

• A) 33,333 W
• B) 250 W
• C) 55.5 W
• D) 555 W

Due to anomalous expansion liquid-water has a volume increase as it cools below:

• A) 4 ºC
• B) –10 ºC
• C) –4 ºC
• D) 10 ºC

Simple thermostat works on:

• A) Thermal expansion
• B) Specific heat
• C) The second law of thermodynamics
• D) Condensation

Normally when heat is added to a body it properties i.e. energy, temperature and volume changes, which line could best represent this:
energy temperature volume

• A) gains falls contracts
• B) gains rises expands
• C) loses rises contracts
• D) loses falls expands

Some of energy radiated by sun is captured by earth but the normal surface temperature of earth remains about 300K. Why does not the earth’s temperature rise as it captures the sun’s energy?

• A) The earth reflects the sun’s light.
• B) The earth radiates an amount of energy into space equal to the amount it receives.
• C) The heat is carried away from the earth by convection currents
• D) The energy only raises the temperature of the upper atmosphere and never reaches the surface.

Matter can exist in four states (i) gas, (ii) plasma, (iii) Solid and (iv) liquid. For a particular element normally the states arranged in order of falling temperature (highest to lowest) are:

• A) (i), (ii), (iii) and (iv)
• B) (ii), (i), (iv) and (iii
• C) (iv), (iii), (ii) and (i)
• D) (iii), (iv), (i) and (ii)

The major role of liver in digestive system is ________.

• A) Producing bile secretion
• B) Making special enzymes
• C) Neutralizing the stomach acid
• D) Regulating the insulin

______ is called the “Powerhouse” of the cell

• A) Nucleus
• B) Lysosomes
• C) Golgi bodies
• D) Mitochondria

The cell in which electrical energy is converted into chemical energy is called

• A) Daniel
• B) Electrolytic cell
• C) fuel cell
• D) Galvanic cell

Brine is the aqueous solution of______.

• A) Sodium Bromide NaBr
• B) Sodium Iodide NaI
• C) Sodium Chloride NaCl
• D) Sodium Fluoride NaF

The bond length in C-O is 0.143 whereas in C=O the bond length ________.

• A) Remain same
• B) Decreases
• C) Increases
• D) Depends on shape of d orbital

An engineer designs different machines. Which is the least efficient?
Input Energy Useful Output Wastage

• A) 450 J 248 J 202 J
• B) 731 J 468 J 263 J
• C) 255 J 153 J 102 J
• D) 510 J 357 J 153 J

For internal energy, which is/are true?
i. It is sum of all forms of energies associated with molecules of a system
ii. t is a state function of a system
iii. It is proportional to transnational K.E of the molecules

• A) (i) only
• B) (ii) & (iii) only
• C) (i) & (iii) only
• D) (i), (ii) & (iii)

Concave mirror formed an inverted image if distance between mirror and object is _______.

• A) More than its focal length
• B) Exactly at its focal length
• C) Less than its focal length
• D) None of above

the SI unit of Temperature is:

• A) Fahrenheit
• B) Kelvin
• C) Centigrade
• D) Celsius

At the end of meiosis each cell divided into ________.

• A) 4n Haploid
• B) 4 Haploid
• C) 2n Haploid
• D) 2 Haploid

A physical quantity that requires a number, a unit and direction to be described fully is known as a

• A) fundamental quantity
• B) vector
• C) derived quantity
• D) scalar

the acceleration of a moving body is always in the direction of the:

• A) applied force
• B) reactive force
• C) resistive force
• D) velocity

Which of the following statement/s is/are correct:

• A) Optical fibers bend the light beam using the principle of total internal reflection
• B) Optical fibers cannot bend the light
• C) Optical fibers can bend light using the principle of Laws of refraction
• D) Optical fibers can bend light using the principle of Laws of reflection