Description : What type of motion occurs when an object spins around an axis without altering its linear position linear motion rotational motion translational motion vibrational motion?
Last Answer : Need answer
Description : Which type of motions are present in solid? A. translational B. rotational C. vibrational (Answer) D. all of these
Last Answer : C. vibrational (Answer)
Description : The electrons which spins about its axis will possess what kind of energy? A. Translational energy B. Spin energy C. Rotational kinetic energy D. Sensible energy
Last Answer : Spin energy
Description : The electrons in an atom which rotate about the nucleus possess what kind of energy? A. Translational energy B. Spin energy C. Rotational kinetic energy D. Sensible energy
Last Answer : Rotational kinetic energy
Description : A substance emits energy which is detected as a line emission in the visible region using a spectroscope. The origin of this energy is (a) Vibrational energy of the molecules (b) Rotational energy of the molecules (c) Energy of orbital electrons (d) Energy of protons in the nucleus.
Last Answer : Ans:(c)
Description : What refers to the portion of the internal energy of a system associated with the kinetic energies of the molecules? A. Translational energy B. Spin energy C. Rotational kinetic energy D. Sensible energy
Last Answer : Sensible energy
Description : The molecules of a gas moving through space with some velocity possesses what kind of energy? A. Translational energy B. Spin energy C. Rotational kinetic energy D. Sensible energy
Last Answer : Translational energy
Description : A solid spherical ball rolls on a table. The momen' of inertia of the ball is given by 3/5 x mass x radius2. The ratio of translational and rotational kinetic energies for ball will be a.2 b.7?16 c.5?3 d.7?8 e.1
Last Answer : c. 5?3
Description : For the production of X-rays, the electrons which strike with the target are a) slow moving b) fast moving c) vibrational electrons d) free electrons
Last Answer : b) fast moving
Description : A solid in which there is no regular arrangement of molecules is a) Amorphous b) Crystalline c) Copper d) None of above
Last Answer : a) Amorphous
Description : What are the two kinds of Rotatory motion? (1) Spin and Vibrational motion (2) Spin and Orbital motion (3) Spin and Translatory motion (4) Spin and Projectile motion
Last Answer : (2) Spin and Orbital motion Explanation: The motion of an object is said to be rotatory if the particles of the object rotate in a circular path with respect to an imaginary axis, known as the axis of rotation.
Last Answer : (2) Spin and Orbital motion Explanation: Rotary motion (angular motion) of a body can take place about an axis that passes through the body or about an axis that does not pass through the body.
Description : Translational kinetic energy of molecules of an ideal gas is proportional to (where, T = absolute temperature of the gas) (A) T (B) √T (C) T2 (D) 1/√T
Last Answer : (A) T
Description : A smallest three dimensional part of a crystal lattice is called. a) A particle b) A molecules c) A unit cell d) An atom
Last Answer : c) A unit cell
Description : The conventional current is due to the flow of a. atoms and molecules b. positive charges c. negative charges d. both b and c
Last Answer : b. positive charges
Description : Tick the wrong statement. a) Velocity of light is independent of the motion of the observer. b) Velocity of light in free space is the same in all directions. c) Velocity of light in free space is different in different directions. d) Absolute motion or absolute rest is meaningless to talk about
Last Answer : c) Velocity of light in free space is different in different directions
Description : A magnetic field acts on a charged particles so as to change its: a. speed b. energy c. direction of motion d. all of these
Last Answer : Only direction of motion will change ...it means velocity will change but speed same
Description : In liquids and gases the current is due to the motion a. negative charges b. positive charges c. both negative and positive charges d. neutral particles
Last Answer : c. both negative and positive charges
Description : Thevelocityfactor of a transmissionline a. depends on the dielectric constant of the material used b. increases the velocity along the transmission line c. is govern by the skin effect d. is higher for a solid dielectric than for air
Last Answer : a. depends on the dielectric constant of the material used
Description : X-rays can penetrate several ____ into a solid matter. a) millimeters b) meters c) centimeters d) kilometers
Last Answer : c) centimeters
Description : Which of the following is polymeric solid? a) Nylon b) Plastic c) Polythene d) All of above
Last Answer : d) All of above
Description : Which of the following is a crystalline solid? a) Copper b) NaCl c) Zirconia d) All of above
Description : A solid is which atoms are in a regular order is called a) Crystalline solid b) Amorphous solid c) Polymeric solid d) Glassy solid
Last Answer : a) Crystalline solid
Description : An element which has a definite volume and shape is called: a) Liquid b) Solid c) Gas d) Vapour
Last Answer : b) Solid
Description : Which type of motion is possible in jointed arm robots a.3 linear and 1 rotational motion b.3 rotational motion c.3 linear motion d.2 linear and 1 rotational motion
Last Answer : b.3 rotational motion
Description : Which type of motion is possible in polar coordinate robots? a.2 linear and 1 rotational motion b.3 linear motion c.3 rotational motion d.2 rotational and 1 linear motion
Last Answer : d.2 rotational and 1 linear motion
Description : Which type of motion is possible in cylindrical coordinate robots? a.3 rotational motion b.3 linear and 1 rotational motion c.2 linear and 1 rotational motion d.3 linear motion
Last Answer : c.2 linear and 1 rotational motion
Description : Which type of motion is possible in Cartesian coordinate robots? a.3 linear motion b.2 linear and 1 rotational motion c.3 rotational motion d.1 linear and 1 rotational motion
Last Answer : a.3 linear motion
Description : In linear motion, the energy is given by 1⁄2mv2. Similarly, in rotational motion, the rotational energy is given by A. 1/2 I ω; where I: moment of inertia of the body, ω: angular velocity B. 1/ ... angular velocity D. 1/2 I² ω²; where I: moment of inertia of the body, ω: angular velocity
Last Answer : 1/2 × I × ω²; where I: moment of inertia of the body, ω: angular velocity
Description : Which of the following terms refers to the rotational motion of a robot arm? a) swivel b) axle c) retrograde d) roll
Last Answer : d) roll
Description : Which of the following terms refers to the rotational motion of a robot arm A : Swivel B : Axle C : Retrograde D : Roll
Last Answer : D : Roll
Description : Which of the following assumptions enables the Euler's equation of motion to be integrated? (A) The fluid is incompressible (B) The fluid is non-viscous (C) The continuity equation is satisfied (D) The flow is rotational and incompressible
Last Answer : (A) The fluid is incompressible
Description : A fluid element has a velocity V = -y 2 . xi + 2yx 2 . j. The motion at (x, y) = (1/√2, 1) is (A) Rotational and incompressible (B) Rotational and compressible (C) Irrotational and compressible (D) Irrotational and incompressible
Last Answer : (B) Rotational and compressible
Description : Which type of motion is possible in jointed arm robots? (A) 3 linear and 1 rotational motion (B) 3 rotational motion (C) 3 linear motion (D) 2 linear and 1 rotational motion
Last Answer : B
Description : Which type of motion is possible in polar coordinate robots? (A) 2 linear and 1 rotational motion (B) 3 linear motion (C) 3 rotational motion (D) 2 rotational and 1 linear motion
Last Answer : D
Description : Which type of motion is possible in cylindrical coordinate robots? (A) 3 rotational motion (B) 3 linear and 1 rotational motion (C) 2 linear and 1 rotational motion (D) 3 linear motion
Last Answer : C
Description : Which type of motion is possible in Cartesian coordinate robots? (A) 3 linear motion (B) 2 linear and 1 rotational motion (C) 3 rotational motion (D) 1 linear and 1 rotational motion
Last Answer : A
Description : From which of the following is basic robotic motion. (A) Vertical traverse (B) Radial traverse (C) Rotational traverse (D) All of the above
Description : A member subjected to couple produces rotational motion about its longitudinal axis called as ________ a. torsion b. twisting moment c. both a. and b. d. bending moment
Last Answer : c. both a. and b.
Description : swirl plate in the cone nozzle is provided to. a. Impart rotational motion to the liquid passing through it. b. To increase the droplet size. c. To decrease the droplet size. d. To increase the spray angle.
Last Answer : a. Impart rotational motion to the liquid passing through it.
Description : If a solid sphere rolls on a horizontal surface, then the ratio of its rotational kinetic energy to its total kinetic energy is a.1 ; 7 b.3 ; 7 c.107 dynes d.4 ; 7 e.2 ; 7
Last Answer : e. 2 ; 7
Description : A sample of pure amine molecules is found to possess no intermolecular Hbonding. This sample is most likely : (a) 1° amine (b) 2° amine (c) 3° amine (d) all of these
Last Answer : 3° amine
Description : Which of the following is a true statement? (a) All chiral molecules possess a plane of symmetry. (b) All achiral molecules are meso. (c) All molecules which possess a single asymmetric center of the S configuration are levorotatory. (d) A mixture of achiral compounds will be optically inactive
Last Answer : A mixture of achiral compounds will be optically inactive
Description : What is vibrational energy therapy?
Last Answer : I really have no idea, but the first thing I thought of was the Jack Rabbit vibrator I bought for my girlfriend for Valentine’s Day!
Description : What to do when you have an aggressive noisy neighbour who is intent in disturbing you 24/7 with loud vibrational heavy base sound,when you are a calm non-aggressive person,?
Last Answer : Call the cops.
Description : Which of the following wavelengths where absorption of electromagnetic waves becomes peak due to vibrational resonances in the water vapor molecule? A. 1.35 cm and 1.7 mm B. 1.5 mm and 5 mm C. 1.35 dm and 1.7 cm D. 1.5 cm and 5mm
Last Answer : A. 1.35 cm and 1.7 mm
Description : Which of the following wavelengths where absorption of electromagnetic waves becomes peak due to vibrational resonances in the water vapor molecule? A. 1.35 cm and 1.7 mm B. 1.5 mm and 5mm C. 1.35 dm and 1.7cm D. 1.5 cm and 5 mm
Description : Which type of joints is better when the product is subjected to large vibrations: welded or threaded? a) Welded b) Threaded c) Both have same results d) Depends on the magnitude of the vibrational force
Last Answer : a) Welded
Description : Heat transfer by conduction results due to the transfer of free electrons, kinetic energy & vibrational energy from one molecule to another. Conduction heat transfer cannot take place (A) Between two bodies in physical contact ... of a body to the another part of the same body (D) Both 'b' & 'c'
Last Answer : (B) Between two bodies not in physical contact with each other
Description : The number of vibrational modes for CH4 molecule is____. (a) 9 (b) 10 (c) 8 (d) 7
Last Answer : (a) 9