Engineering Questions
460 solved questions with detailed explanations
Q.61. Given below are two statements for catalytic properties of transition metals : Statement I: First row transition metals which act as catalyst utilise their 3d electrons only for formation of bon
Q.41. A spherical interface lens of radius R separates two media of refractive indices 1 and 1.4 respectively as shown in the figure below. A point source is placed at a distance of 4R in front of sph
Q.18. The value of the integral is:
Q.41. An object AB is placed 15 cm on the left of a convex lens P of focal length 10 cm. Another convex lens Q is now placed 15 cm right of lens P. If the focal length of lens Q is 15 cm, the final im
Q.32. A parallel plate air capacitor has a capacitance C. When it is half filled as show in figure with a dielectric constant K = 5, the percentage increase in the capacitance is [Figure: A parallel p
Q.67. Match List-I with List-II. List-I: Mixture of Compounds A. Diethyl amine + Ethyl amine B. Acetaldehyde + Acetone C. Ethanol + Phenol D. Benzoic acid + Cinnamic acid List-II: Reagent used to dist
Q.69. The incorrect statement from the following with respect to carbohydrates is :
Q.17. Let A = {(a, b, c) : a, b, c are non-negative integers and a + b + 2c = 22}. The n(A) is equal to :
Q.47. A gun mounted on the ground fires bullets in all directions with same speed. The farthest distance the bullets could reach is 6.4 m. The speed of the bullets from the gun is __________ m/s. (tak
Q.65. n-Butane on monochlorination under photochemical conditions gives an optically active compound "P". “P” on further chlorination gives dichloro compounds. The number of dichloro compounds obtaine
Q.3. Let be such that the system of linear equations , , has no solution. Then is equal to :
Q.45. In a semiconductor p-n diode, the doping concentrations on p-side and n-side are atoms/cm³ and atoms/cm³, respectively. Which one of the following statement is true?
Q.31. A metal string A is suspended from a rigid support and its free end is attached to a block of mass M. Second block having mass 2M is suspended at the bottom of the first block using a string B.
Q.65. In IUPAC nomenclature, the correct order of decreasing priority of functional group is :
Q.70. Match the LIST-I with LIST-II List-I Compound A. [Figure: Phenol] B. [Figure: Aniline] C. [Figure: Acetaldehyde] D. [Figure: Alcohol (Ethanol)] List-II Test I. Hinsberg's reagent test II. Phthal
Q.48. A series LCR circuit with , H and is connected to a variable frequency a.c. source. The inductive reactance at resonant frequency is .
Q.30. A wheel initially at rest is subjected to a uniform angular acceleration about its axis. In the first 2 s it rotates through an angle . In the next 2 s it rotates through an angle . The ratio i
Q.3. If the system of linear equations : , , . has infinitely many solutions, then the value of equals.
Q.42. Light ray incident along a vector AO(AO=2\hat{i}-3\hat{j}) emerges out along vector OB(OB=C\hat{i}-4\hat{j}) as shown in the figure below. The value of C is
Q.38. Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A : In electrostatics, a conductor does not store any net charge inside. Reason R