Description : SI unit of gain of amplifier is (a) Volt (b) ampere (c) coulomb (d) dimensionless
Last Answer : (d) dimensionless
Description : The dimension of strain is a) [L] b) [ML2T –2 ] c) [M L–1 T –2 ] d) Dimensionless
Last Answer : d) Dimensionless
Description : Please ripley me due to emergency
Last Answer : To calculate the flux density in the ring, you need to use the following formula: B = (μ * I * N) / (2 * π * r) where: B is the flux density in the ring (in teslas) μ is the relative permeability ... 2 * π * 0.127 m) = 0.53 T So the flux density in the ring would be approximately 0.53 teslas.
Description : Paramagnetic materials have relative permeability (a) slightly less than unity (b) equal to unity (c) slightly more than unity (d) equal to that ferromagnetic mate rials
Last Answer : (c) slightly more than unity
Description : The ratio of intensity of magnetisation to the magnetisation force is known as (a) flux density (b) susceptibility (c) relative permeability (d) none of the above
Last Answer : (b) susceptibility
Description : Which of the following is a vector quantity ? (a) Relative permeability (b) Magnetic field intensity (c) Flux density (d) Magnetic potential
Last Answer : (b) Magnetic field intensity
Description : Tesla metre per ampere (T. m/A) is the unit for the measurement of (A) Magnetic susceptibility (B) Magnetic moment (C) Permeability of free space (D) Flux density
Last Answer : Option C
Description : The unit of inductance is: a. Volt b. Ampere c. Henry d. Ohm
Last Answer : c. Henry
Description : Area of steel required per metre width of pavement for a length of 20 m for design wheel load 6300 kg and permissible stress in steel 1400 kg/cm2 , is (A) 70 kg/sq cm (B) 80 kg/sq cm (C) 90 kg/sq cm (D) 100 kg/sq cm
Last Answer : Answer: Option C
Description : The electrostatic force of repulsion between two electrons at 1 metre is: (a) 9 × 109 N (b) 1.44 × 10−9 N (c) 2.30 × 10−28 N (d) 1 N
Last Answer : (c) 2.30 × 10−28 N
Description : For a homogeneous earth dam 50 m high having 2 m free broad, a flow net was constructed and the results were : Number of potential drops = 2.4 Number of flow channels = 0.4. If co-efficiency of permeability of the dam material is ... 24 10-3 m3 /sec (C) 6 10-5 m3 /sec (D) 24 10-5 m3 /sec
Last Answer : (D) 24 × 10-5 m3 /sec
Description : Substances which have permeability less than the permeability of free space are known as (a) ferromagnetic (b) paramagnetic (c) diamagnetic (d) bipolar
Last Answer : (c) diamagnetic
Description : Materials subjected to rapid reversal of magnetism should have (a) large area oiB-H loop (b) high permeability and low hysteresis loss (c) high co-ercivity and high retentivity (d) high co-ercivity and low density
Last Answer : (b) high permeability and low hysteresis loss
Description : Magnetising steel is normals difficult because (a) it corrodes easily (6) it has high permeability (c) it has high specific gravity (d) it has low permeability
Last Answer : (d) it has low permeability
Description : The phenomena of induced emf was observed by Faraday and Henry in: a. 1931 b. 1831 c. 1535 d. 1940
Last Answer : a. 1931
Description : One henry is equal to.......: a. VA/s b. Nm/A c. As/V d. Vs/A
Last Answer : d. Vs/A
Description : One henry is equal to: a. Vs-1 A b. NmA-1 c. V -1 s A d. V s A
Last Answer : d. V s A
Description : How many 300mm circles in a sq metre?
Last Answer : Assuming the 300 mm refers to the diameter, there are 9.
Description : The brick work is measured in sq metre, in case of (A) Honey comb brick work (B) Brick flat soling (C) Half brick walls or the partition (D) All the above
Last Answer : (D) All the above
Description : Amount of water vapour in a unit volume (Cubic metre) of air is called: (1) Mixed ratio (2) relative humidity (3) absolute humidity (4) specific humidity
Last Answer : (3) absolute humidity Explanation: Absolute humidity is the measure of water vapor (moisture) in the air, regardless of temperature. It is expressed as grams of moisture per cubic meter of air (g/m3).
Description : The compressibility factor, x, is used for predicting the behavior of nonideal gases. How is the compressibility ty factor defined relative to an ideal gas? (subscript c refers to critical value) A. ... compressibility factor, x, is an dimensionless constant given by pV=zRT. Therefore z = pV / RT
Last Answer : z = pV/ RT
Description : Consider the following statements. In case of flood routing in a river channel by Muskingum method, the coefficient x represents : 1. A dimensionless constant indicating the relative importance of inflow and outflow in determining storage ... , 3 and 4 only (c) 1, 2 and 3 only (d) 2, 3 and 4 only
Last Answer : (b) 1, 3 and 4 only
Description : The S.I. unit of Rydberg’s constant is a) m-2 b) m-1 c) cm-1 d) cm-2
Last Answer : b) m-1
Description : S.I unit of strain is a) Newton b) N m–2 c) Pascal d) no unit
Last Answer : a) Newton
Description : S.I unit of stress is: a) N/m b) N m c) Nm–2 d) Newton
Last Answer : c) Nm–2
Description : SI unit of resistivity is a. ohm b. Ohm×m c. Ohm×m-1 d. Ohm×m2
Last Answer : c. Ohm×m-1
Last Answer : it is dimensionless.
Description : The force in a medium of relative permitivity ∈r is given by: (a) F′ =F (b) F′ =∈r ∈ F r (c) F′ = ∈r . F (d) F′ =F ∈ ∈
Last Answer : (a) F′ =F
Description : Which of the following is correct regarding isolation factor? a) Dimensionless quantity b) Has Newton as its unit c) Has joule as its Unit d) Has Hz as its unit
Last Answer : a) Dimensionless quantity
Description : The unit of frequency factor in Arrhenius equation is (A) Same as that of rate constant (B) Same as that of activation energy (C) Dimensionless (D) None of these
Last Answer : (A) Same as that of rate constant
Description : Which of the following is not a unit of the equilibrium constant Kp? (where, Δx = number of moles of products number of moles of reactants) (A) (atm)Δx, when Δx is negative (B) (atm)Δx, when Δx is positive (C) Dimensionless, when Δx = 0 (D) (atm)Δx2, when Δx > 0
Last Answer : (D) (atm)Δx2, when Δx > 0
Description : Pick up the correct statement from the following: (A) Coefficient of compressibility is the decrease in void ratio per unit increase of pressure (B) The percent settlement at any time is called degree of consolidation (C) Time factor is a dimensionless quantity (D) All the above
Last Answer : Answer: Option D
Description : Dimensions of strain are A. [L] B. [M] [L]-1 [T]-2 C. [L]-1 D. It's a dimensionless quantity
Last Answer : It's a dimensionless quantity
Description : Buckingham-π theorem states that in any physical problem includingn' quantities having 'm' dimensions, the quantities can be arranged into __________ independent dimensionless parameters. (A) m (B) n (C) n-m (D) n/m
Last Answer : (C) n-m
Description : Amount of water vapour (gaseous) in a given volume of air (cubic metre) is known as: (1) Mixing ratio (2) Relative humidity (3) Absolute humidity (4) Specific humidity
Last Answer : (3) Absolute humidity Explanation: The relative humidity of air at a given temperature is the ratio of mass of water vapour actually present in a certain volume of air to the mass of water vapour required to saturate the same volume of air at the same temperature, multiplied by 100.
Description : During last phase of the reconnaissance, details of the grade line is recorded on 2 metre poles to indicate (A) Direction of the proposed alignment (B) Distance between the previous and forward pegs (C) Relative elevations of pegs (D) All the above
Last Answer : Absolute humidity
Description : Tesla is a unit of (a) field strength (b) inductance (c) flux density (d) flux
Last Answer : (c) flux density
Description : The unit of electric intensity is
Last Answer : Volt/ metre
Description : The unit of absolute permittivity of a medium is
Last Answer : Farad/ metre
Description : What is the unit for capacitance ?
Last Answer : Farad
Description : The SI unit of Planck’s constant is a) Joule – Sec-1 b) Joule – Sec-2 c) Joule – Sec d) Joule – Sec2
Last Answer : c) Joule – Sec
Description : The S.I Unit of Modulus elasticity is: a) Pascal b) Coulomb c) Ampere d) None
Last Answer : a) Pascal
Description : The unit Nm–2 is also called a) Coulomb b) Newton c) Pascal d) Ampere
Last Answer : c) Pascal
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 Si unit of mutual inductance and self inductance is: a.same b. different c. no unit d. a & b
Last Answer : b. different
Description : Energy stored per unit volume inside the solenoid is called: a. Energy density b. Charge Density c. Mass density d. Volume charge density
Last Answer : energy density is correct
Description : The self-inductance of a long solenoid with a turns per unit length is: a. L = μ nA/ l b. L = μ n2 A/ l c. L = μ n2 A l d. L = μ n l/ A
Last Answer : d. L = μ n l/ A
Description : Which of the following does not equal the unit of magnetic flux density? a) 1 Wbm-2 b) 1 NA-1m -1 c) Both (a) and (b) d) 1 Wbm-1
Last Answer : d) 1 Wbm-1
Description : The force per unit charge is called: (a) Electric field (b) Electric field intensity (c) Electric potential energy (d) Electric potential
Last Answer : b) Electric field intensity