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Home » Medical Papers » Aptitude Test - 13
Hassan
1.SI unit of charge is _______.
A. Ampere
B. Volt
C. Coulomb
D. Ampere
2.The electrical analog of mass is electricity is _________.
A. Capacitance
B. Inductance
C. Charge
D. Capacitance
3.The electrical analog of mass is electricity is _________.
A. Capacitance
B. Inductance
C. Charge
D. Capacitance
4.The survival of an organism during the struggle for existence is not random, but depends on:
A. Its genetic constitution
B. Its ability to acquire characters
C. Its ability to over-produce
D. Its genetic constitution
5.Evolutionary relationships amongst species are reflected in their:
A. DNA and proteins
B. RNAs and proteins
C. DNA and gene
D. DNA and proteins
6.Which one of the following relations is correct?
A. ) 1 wb m-2 = N m-1 A-1
B. 1 Tesla = 104 Gausses
C. C) 1 wb m-2 = 1 Tesla
D. ) 1 wb m-2 = N m-1 A-1
7.If all the members of a population are homozygous for the same allele, that allele is said to be
A. Random in population’s pool
B. Fixed in population’s pool
C. Random in a species
D. Random in population’s pool
8.Life time of electron in metastable state is about _________
A. 10-5 sec
B. 10-3 sec
C. 10-8 sec
D. 10-5 sec
9.The torque acting on a current carrying coil is given by ___________
A. τ = NIAB cos α
B. τ = BIL sin α
C. τ = NIAB sin α
D. τ = NIAB cos α
10.The grid in the cathode ray oscilloscope _____________.
A. Controls number of waves
B. Controls the brightness of spot formed
C. Accelerates electrons
D. Controls number of waves
11. Q.8 The horizontal range of a projectile, at a certain place, is completely determined by
A. The angle of projection
B. The initial velocity of projection
C. The mass of the projectile
D. The angle of projection
12.If velocity is double, then.
A. Momentum increase 4 times and K.E increases 2 times
B. Momentum and K.E remain same
C. Momentum increases 2 times and K.E increase constant
D. Momentum increase 4 times and K.E increases 2 times
13.The consumption of energy by 60-watt bulb in 2 seconds is:
A. 20 J
B. 120 J
C. 30 J
D. 20 J
14. In transistors, the base region is very thin, of the order o
A. 10-5 cm
B. 10-6 m
C. 10-6 mm
D. 10-5 cm
15.The closed loop gain of OP-AMP depends on
A. Internal structure of OP-AMP
B. Externally connected resistances
C. Voltage of power supplies
D. Internal structure of OP-AMP
16.The net charge on an N-type substance is
A. 0.7 volts
B. 0.3 volts
C. 0.25 volts
D. 0.7 volts
17.The value of Wien’s constant is
A. 2.90 x 10-3 mK
B. 3.34 x 10-4 mK
C. 4.22 x 10-7 mK
D. 2.90 x 10-3 mK
18.The minimum frequency below which no electron is emitted from the metal surface is called
A. High frequency
B. Low frequency
C. Threshold frequency
D. High frequency
19.In pair production, the type of photon used
A. α-particle
B. β-particle
C. X-rays
D. α-particle
20.The life time of an electron in an excited state is about 10-8 s. What is its uncertainty in energy during this time?
A. 1.05 x 10-41 J
B. 1.05 x 10-26 J
C. 1.15 x 1010 J
D. 1.05 x 10-41 J
21.Velocity of electron moving in first orbit of hydrogen is
A. 2.19 x 107 m/sec
B. 2.18 x 107 m/sec
C. 2.2 x 108 m/sec
D. 2.19 x 107 m/sec
22.LASER is a potential energy source for inducing which type of reaction?
A. Radioactive
B. Fission
C. Ionization
D. Radioactive
23.In the half-life of an element, the equation for the number of decaying atoms is given by
A. ΔN ∝ -NΔt
B. ΔN = KNΔt
C. ΔN ∝ -nΔt
D. ΔN ∝ -NΔt
24.Decay constant ‘λ’ is given as
A. - ∆N/N ∆t
B. - ∆N /∆t
C. - N/ ∆t
D. - ∆N/N ∆t
25.The SI unit of absorbed dose ‘D’ i.e. radiation effect is Gray and one Gray is equal to
A. kJ / mol
B. J / mol
C. kg / J
D. kJ / mol
26.The principle of homogeneity of dimensions determines
A. Only variable in the equation
B. Only constant in the equation
C. Correctness of an equation
D. Only variable in the equation
27.For a body to be in complete equilibrium
A. Linear acceleration is zero
B. Angular acceleration is zero
C. Linear acceleration is zero but angular acceleration is not zero
D. Linear acceleration is zero
28.If length of a spanner is ‘I’ and a force ‘F’ is applied on it to tighten a nut such that it passes through the pivot point, then torque is
A. Zero
B. Ff
C. Fl sin θ
D. Zero
29. If a force of magnitude 8 N acts on a body in direction making an angle 30, its x and y components will be
A. Fx = 4√3 and Fy = 8
B. Fx = 8 and Fy = 4√3
C. Fx = 4√3 and Fy = 4
D. Fx = 4√3 and Fy = 8
30.The difference of a vector B⃗ and its negative vector – ⃗ is
A. A null vector
B. Equal to magnitude of vector B⃗
C. Twice the magnitude of vector B⃗
D. A null vector
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