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Home » Medical Papers » Aptitude Test - 30
Hassan
1.A wire is stretched by a force ‘F’ which causes an extension Δl, the energy stored in the wire is:
A. FΔl
B. 2FΔl
C. ½ FΔl2
D. FΔl
2.H2 and O2 both are at thermal equilibrium at temperature 300 K. Oxygen molecule is 16 times massive than hydrogen. Root mean square speed of hydrogen
A. 4 root mean square of oxygen
B. ¼ root mean square of oxygen
C. 1/16 root mean square of oxygen
D. 4 root mean square of oxygen
3.If ‘Q’ is the amount of heat supplied to a system and ‘W’ is the work done, then change in internal energy can be defined as
A. Q/W
B. Q – W
C. W/Q
D. Q/W
4.A heat engine operating according to second law of thermodynamics rejects one fourth of the heat taken from high temperature reservoir. What is the percentage efficiency of heat engine?
A. 100%
B. 25%
C. 50%
D. 100%
5.First law of thermodynamics under adiabatic conditions can be mathematically written as:
A. Q = W
B. Q = ΔU
C. Q = U + W
D. Q = W
6.The voltage that is applied across X-plates is provided by a circuit called
A. Audio generator
B. Time base generator
C. Signal generator
D. Audio generator
7.What will be the effect on the capacitance of a capacitor if area of each plate is doubled while separation between the plates is halved?
A. Capacitance remains same
B. Capacitance becomes double
C. Capacitance becomes four times
D. Capacitance remains same
8.10 V potential difference is applied across the plate of 1 μF capacitor. What is the energy storied in capacitor?
A. 0.5 mJ
B. 0.05 mJ
C. 5 mJ
D. 0.5 mJ
9.Organic compound containing both amine and carboxyl group is known as
A. Amino acid
B. Fatty acid
C. Saccharide
D. Amino acid
10.Organic compound containing both amine and carboxyl group is known as
A. Amino acid
B. Fatty acid
C. Saccharide
D. Amino acid
11.The principle energy storage carbohydrate in animal’s is
A. Glucose
B. Starch
C. Protein
D. Glucose
12.Starch is a polymer of
A. β–D–glucose
B. α– –glucose
C. γ–D–glucose
D. β–D–glucose
13.The reaction between fats and caustic soda is called
A. Hydrogenolysis
B. Fermentation
C. Esterification
D. Hydrogenolysis
14.Adipic acid and hexamethylene diamine both of which have _________ carbon atoms:
A. Seven
B. Eight
C. Six
D. Seven
15.Lactose is a sugar present in milk. It is an example of
A. Disaccharides
B. Monosaccharides
C. Polysaccharides
D. Disaccharides
16.Macromolecules are described as large molecules built up from small repeating units called:
A. Monomers
B. Isomers
C. Metamers
D. Monomers
17.The increase in concentration of oxidizing agents in smog like H2O2, HNO3, PAN and ozone in the air is called
A. Carbonated smog
B. Nitrated smog
C. Photochemical smog
D. Carbonated smog
18.Which is the metal, whose elevated concentration is harmful for fish as it clogs the gills thus causing suffocation?
A. Sodium
B. Lead
C. Zinc
D. Sodium
19.A solenoid 15 cm long has 300 turns of wire. A current of 5 A flows through it. What is the magnitude of magnetic field inside the solenoid?
A. 75 x 107 T
B. 60 x 10+3 T
C. 4Ï€ x 10-3 T
D. 75 x 107 T
20.Due to current in a straight conductor the difference between magnetic field lines
A. Increases away from conductor
B. Decreases away from conductor
C. Increases towards conductor
D. Increases away from conductor
21.Magnetic Resonance Imaging (MRI) is used to identify the image of
A. Tumors and inflamed tissues
B. Blood cells
C. Skin cells
D. Tumors and inflamed tissues
22.Bones absorb greater amount of incident X-rays than flesh. This is because of the fact that
A. Bones lie between the flesh
B. Bones are light in color
C. Bones contain material of low densities
D. Bones lie between the flesh
23.Bones absorb greater amount of incident X-rays than flesh. This is because of the fact that
A. Bones lie between the flesh
B. Bones are light in color
C. Bones contain material of low densities
D. Bones lie between the flesh
24.Bones absorb greater amount of incident X-rays than flesh. This is because of the fact that
A. Bones lie between the flesh
B. Bones are light in color
C. Bones contain material of low densities
D. Bones lie between the flesh
25.Which of the following techniques is the practical application of X-rays?
A. Magnetic Resonance Imaging
B. Ultrasonography
C. Computerized Axial Topograph
D. Magnetic Resonance Imaging
26.Which one of the following has the largest energy content?
A. γ-rays
B. X-rays
C. Infra-red radiations
D. γ-rays
27.What will be the energy of accelerated electron used to produce X-rays when the accelerating potential is 2 kV?
A. ) 2 x 10-19 J
B. 1.6 x 10-19 J
C. 3.2 x 1019 J
D. ) 2 x 10-19 J
28.Process of generating three dimensional images of objects by using laser beam is called
A. Photography
B. 3-D cinema
C. Holography
D. Photography
29.Which one of the following isotopes of Iodine is used for the treatment of thyroid cancer?
A. I - 113
B. I - 120
C. I - 131
D. I - 113
30.A Uranium isotope 92U 232 undergoes one α–decay and one β-1 0 – decay. What is the final product?
A. 90
B. 92
C. 89
D. 90
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