UHS MDCAT :: All Aptitude Test ::

1.Aldehydes can be synthesized by the oxidation of
A. Primary alcohol
B. Secondary Alchohal
C. Organic acids.
D. Primary alcohol

2. The products of the fermentation of a sugar are ethanol and
A. Water
B. Oxygen
C. Carban dioxide
D. Water

3.__________ serve as carriers of heredity from one generation to the other.
A. Lipids
B. Caseins
C. Formaldehydes.
D. Lipids

4. __________ extraction is controlled by partition law.
A. Iodine
B. Benzoic acid
C. Solvent
D. Iodine

5.The process of effusion is best understood by __________ law.
A. Grahm's
B. Charles's
C. Boyle's
D. Grahm's

6.__________ has dipole moment.
A. CO.
B. CO2
C. Benzene
D. CO.

7. __________ is used as catalyst in Haber’s process for NH3 gas manufacture.
A. Iron
B. Carbon
C. Copper
D. Iron

8. In many of its properties __________ is quite different from the other alkali metals.
A. Li.
B. Be.
C. Na.
D. Li.

9.Which element forms long chains alternating with oxygen?
A. Carbon
B. Silicon
C. Nitrogen
D. Carbon

10. The percentage of carbon in medium carbon steel is
A. 0.7-1.5.
B. 0.1-0.2.
C. 0.2-0.7.
D. 0.7-1.5.

11.Name the rare halogen among the following.
A. F.
B. Cl.
C. I.
D. F.

12.If inputs A = 1, B = 0 and output X = 1, then it corresponds to the operation of a:
A. AND Gate
B. NAND Gate
C. XNOR Gate
D. AND Gate

13.LASER is a device which can produce
A. Intense beam of light
B. Intense, Coherent, Monochromatic beam of light
C. Coherent beam of light
D. Intense beam of light

14.A crack allows greater amount of X-rays to pass, which appears on photographic film as
A. Blue Area
B. Dark Area
C. Bright Area
D. Blue Area

15.For intermediate energy of radiations, the dormant process is:
A. Compton Effec
B. Nuclear Effect
C. Photoelectric Effect
D. Compton Effec

16.Ultraviolent radiations cause:
A. Severe Crop Damage
B. Sunburn, blindness, skin cancer
C. Decay of Microorganisms
D. Severe Crop Damage

17.Two waves of slightly different frequencies and travelling in the same direction lead to:
A. Stationary Waves
B. Interference
C. Beats
D. Stationary Waves

18.What is it that we use to calculate the speeds of distant stars and galaxies?
A. Doppler Effect
B. Interference
C. Beats
D. Doppler Effect

19.In Young’s Double Slit Experiment, if the distance between slits and screen is doubled, then fringe spacing becomes:
A. Zero
B. One
C. Doubles of the original value
D. Zero

20.The information received at the other end of a fibre can be inaccurate due to _______ of the light signal.
A. Longer wavelengths
B. Frequency
C. Intensity
D. Longer wavelengths

21.The pressure on the other sides and everywhere inside the vessel will be according to the:
A. Pascal’s Law
B. Hook’s Law
C. Boyle’s Law
D. Pascal’s Law

22.For adiabatic process, the First Law of Thermodynamics is:
A. W = ∆U + Q
B. Q = – W
C. Q = W
D. W = ∆U + Q

23.The entropy of the universe always:
A. Decreases
B. Increases
C. Remains the same
D. Decreases

24.The work done in moving a unit positive charge from one point to another against the electric field is a measure of:
A. Capacitance
B. Potential difference between two points
C. Intensity of electric field
D. Capacitance

25.The scalar product of i and k is:
A. Zero
B. 90°
C. 1
D. Zero

26.If the body is rotating with uniform angular velocity, then its torque is
A. Zero
B. Clockwise
C. Maximum
D. Zero

27.If a certain force acts on an object and changes its kinetic energy from 65 J to 130 J, then work done by the force will be:
A. 92.5 J
B. 97.5 J
C. 65 J
D. 92.5 J

28.In a certain circuit, if the transistor has a collector current of 10 mA and base current of 50 μA, then the current gain of the transistor is
A. 250
B. 100
C. 150
D. 250

29.A signal that is applied at the inverting input terminal of an op-amplifier undergo amplification, at the output terminal with a phase shift of:
A. 0°
B. 270°
C. 360°
D. 0°

30.If the mass attached with a spring becomes four times, the time period of vibration becomes:
A. One fourth
B. 3/4
C. Half
D. One fourth


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