Solved Past Papers MCQs of MDCAT for the preparation of Medical and Dental College Admission Test and other medical tests.
Q.26 Which relation exactly described the isothermal process?
A) Q = W C) Q = ̶ ΔU
B) W = ̶ ΔU D) Q = ΔU + W
Q.27 If a turbine is working as a heat engine and takes that from hot body (427 °C) and exhausts into a body at 77 °C then what is the possible efficiency?
A) 50% C) 90%
B) 70% D) 95%
Q.28 The target of X-ray tube is made up of which metal?
A) Iron C) Brass
B) Nickel D) Tungsten
Q.29 The X-rays consists of:
A) High energy proton C) High energy γ-rays
B) High energy electrons D) High energy photons
Q.30 If the length, width and separation between the plates of a parallel plate capacitor is doubled then its capacitance becomes:
A) Double C) Four-times
B) Half D) Eight-times
Q.31 The force acting on current carrying conductor will be maximum if the angle between magnetic field and conductor is:
A) 0° C) 90°
B) 30° D) 60°
Q.32 The shadow of the bones in X-rays photographic film appears lighter than the surrounding flesh due to:
A) Bones reflect greater amount of X-rays C) Bones absorb greater amount of X-rays
B) Bones absorb less amount of X-rays D) Bones totally reflect X-rays
Q.33 ‘F’ is maximum force acting on a conductor. Now if we change the direction of conductor by making an angle of 45° with the magnetic field then the force becomes:
A)F/2 C)F/√2
B) 2F D) √2 F
Q.34 If we doubled all the parameters of the force acting on current carrying conductor and θ = 90° then magnetic force becomes:
A) Half C) Eight-times
B) Double D) Four-times
Q.35 Which one of the following gas is the lasing or active medium in the laser tube?
A) Hydrogen C) Neon
B) Helium D) Carbon dioxide
CHEMISTRY
Q.36 When acid is added to an amino acid, which one of the following will act as a base?
A) NH3+ C) H+
B) COOˉ D) R group
Q.37 In the formation of Zwitter ion which one of the following donates the proton?
A) COOH C) CH2COOˉ
B) NH2 D) OHˉ
Q.38 HOOC- CH2- CH2- CH- COOH
|
NH2
What is the name of above given structural formula?
A) Aspartic Acid C) Adipic Acid
B) Asparagine D) Glutamic Acid
Q.39 Which one of the following is simplest amino acid?
A) Lysine C) Alanine
B) Leucine D) Glycine
Q.40 Which one of the following polymer is called as Nylon 6,6?
A) Polyester C) Polyamide
B) Polyvinyl chloride D) Polyvinyl acetate
Q.41 Which one of the following is an exact composition of a carbohydrates?
A) Carbon and Hydrogen C) Carbon, Hydrogen and Oxygen
B) Carbon and Oxygen D) Hydrogen and Oxygen
Q.42 Which one of the following nitrogen base is NOT present in DNA?
A) Adenine C) Uracil
B) Guanine D) Cytosine
Q.43 In the woody parts of trees, the %age of cellulose is:
A) 50% C) 30%
B) 10% D) 100%
Q.44 In laboratory experiment an unknown compound was added in test tube containing iodine, the colour became intense blue. What could be the unknown compound?
A) Cellulose C) Ribose
B) Raffinose D) Starch
Q.45 Ozone concentration is measured in:
A) Debye units C) Debacle units
B) Dupont units D) Dobson units
Q.46 The gas which is mainly produced in landfills from the waste is:
A) CH4 C) SO2
B) CO2 D) Cl2
Q.47 The substance for the separation of isotopes is firstly converted into the:
A) Neutral state C) Vapour state
B) Free state D) Charged state
Q.48 The number of moles of CO2 which contain 8.00 gm of oxygen is:
A) 0.75 C) 0.25
B) 1.50 D) 1.00
Q.49 London dispersion forces are the only forces present among the:
A) Molecules of H2O in liquid state C) Atoms of helium in gaseous state at high temperature
B) Molecules of HCl gas D) Molecules of solid chlorine
Q.50 Electrical conductivity of graphite is greater in one direction that in other due to:
A) Isomorphism C) Anisotropy
B) Cleavage plane D) Symmetry
READ MORE:
- Solved Past Papers MCQs of MDCAT 1
- Solved Past Papers MCQs of MDCAT 3
- Solved Past Papers MCQs of MDCAT 4
