Description : The angle at which the wave must be transmitted in air media if the angle of reflection is 45 degree is a) 45 b) 30 c) 60 d) 90
Last Answer : a) 45
Description : Find the acceptance angle of a material which has a numerical aperture of 0.707 in air. a) 30 b) 60 c) 45 d) 90
Last Answer : c) 45
Description : Find the loss angle in degrees when the loss tangent is 1. a) 0 b) 30 c) 45 d) 90
Description : The intrinsic angle of the wave with a loss angle of 60 is a) 120 b) 60 c) 90 d) 30
Last Answer : d) 30
Description : The critical angle for two media of refractive indices of medium 1 and 2 given by 2 and 1 respectively is a) 0 b) 30 c) 45 d) 60
Last Answer : b) 30
Description : Find the angle at which the potential due a dipole is measured, when the distance from one charge is 12cm and that due to other is 11cm, separated to each other by a distance of 2cm. a) 15 b) 30 c) 45 d) 60
Last Answer : d) 60
Description : In lossy dielectric, the phase difference between the electric field E and the magnetic field H is a) 90 b) 60 c) 45 d) 0
Last Answer : d) 0
Description : In perfect conductors, the phase shift between the electric field and magnetic field will be a) 0 b) 30 c) 45 d) 90
Description : The critical angle for two media with permittivities of 16 and 9 respectively is a) 48.59 b) 54.34 c) 60 d) 45
Last Answer : a) 48.59
Description : Find the permittivity of the surface when a wave incident at an angle 60 is reflected by the surface at 45 in air. a) 1.41 b) 3.5 c) 2.2 d) 1.73
Last Answer : d) 1.73
Description : What is the potential difference between 10sinθcosφ/r 2 at A(1,30,20) and B(4,90,60)? a) 2.386 b) 3.386 c) 4.386 d) 5.386
Last Answer : c) 4.386
Description : In conductors, the E and H vary by a phase difference of a) 0 b) 30 c) 45 d) 60
Description : Flooding nozzle have spray angle a) 100-150 b) 90-100 c) 60-95 d) 30-45
Last Answer : a) 100-150
Description : A wave incident on a surface at an angle 60 degree is having field intensity of 6 units. The reflected wave is at an angle of 30 degree. Find the field intensity after reflection. a) 9.4 b) 8.4 c) 10.4 d) 7.4
Last Answer : c) 10.4
Description : After an accident, the operator of an aeroplane equipped with a flight recorder must keep the original recordings for a minimum period of: a. 30 days b. 90 days c. 45 days d. 60 days
Last Answer : d. 60 days
Description : Consider the conductor to be a coil of turns 60 and the flux density to be 13.5 units, current 0.12A and area 16units. The torque will be a) 1555.2 b) 1222.5 c) 525.1 d) 255.6
Last Answer : a) 1555.2
Description : In good conductors, the electric and magnetic fields will be a) 45 in phase b) 45 out of phase c) 90 in phase d) 90 out of phase
Last Answer : b) 45 out of phase
Description : Find the area of a right angled triangle with sides of 90 degree unit and the functions described by L = cos y and M = sin x. a) 0 b) 45 c) 90 d) 180
Last Answer : d) 180
Description : The angle of incidence of a wave of a wave with angle of transmission 45 degree and the refractive indices of the two media given by 2 and 1.3 is a) 41.68 b) 61.86 c) 12.23 d) 27.89
Last Answer : a) 41.68
Description : For a critical angle of 60 degree and the refractive index of the first medium is 1.732, the refractive index of the second medium is a) 1 b) 1.5 c) 2 d) 1.66
Last Answer : b) 1.5
Description : Find the ratio of refractive index of medium 2 to that of medium 1, when the Brewster angle is 60 degree. a) 0.707 b) 1.5 c) 0.866 d) 1.732
Last Answer : d) 1.732
Description : The numerical aperture of a material with acceptance angle of 60 degree in water will be a) 1.15 b) 2.15 c) 5.21 d) 1.52
Last Answer : a) 1.15
Description : If the intrinsic angle is 20, then find the loss tangent. a) tan 20 b) tan 40 c) tan 60 d) tan 80
Last Answer : b) tan 40
Description : The angle of projection when the range is equal to the distance through which the particle would have fallen in order to acquire a velocity equal to the velocity of projection will be a.30? b.45? c.15? d.90? e.22
Last Answer : c. 15?
Description : For the maximum range of a projectile the angle of projection should be a.90? b.30? c.22 d.45? e.15?
Last Answer : d. 45?
Description : A second appeal against decision shall lie within a) 30 days b) 60 days c) 90 days d) 45 days
Last Answer : c) 90 days
Description : The first appeal should be lie under RTI Act after a) 45 days b) 60 days c) 90 days d) 30 days
Last Answer : d) 30 days
Description : In India, which one of the following should be considered the right combination of the age in days and live body weight in kg for a lamb for its weaning ? (A) 20 days to 30 days and 6 kg to 7 kg (B) 45 days to 60 ... (D) 75 days to 90 days and 12 kg to 15 kg (E) 55 days to 70 days and 9 kg to 11 kg
Last Answer : (C) 105 days to 120 days and 18 kg to 21 kg
Description : Bed pressure drop in an air fluidised bed of catalyst particles (ρp = 200 kg/m3, Dp = 0.05 cm) of 60 cm bed depth and bed porosity of 0.5 expressed in cm of water (manometer) is (A) 90 (B) 60 (C) 45 (D) 30
Last Answer : (B) 60
Description : High strength of concrete requires a water cement ratio of [ A ] 0.10 to 0.15 [ B ] 0.25 to 0.30 [ C ] 0.45 to 0.60 [ D ] 0.75 to 0.90
Last Answer : [ B ] 0.25 to 0.30
Description : Which of the following is true about the Accounts Receivable Lag and its implications on demand? a. If you offer no credit, demand falls to about 60% of normal. b. At 30 days, demand is 90%. c. At 45 days, demand is 95%. d. At 60 days, demand is 98.5%. e. At 90 days, demand is 100%.
Last Answer : d. At 60 days, demand is 98.5%.
Description : A close-coiled helical spring of stiffness 30 N/mm is arranged in series with another such spring of stiffness 60 N/mm. The stiffness of composite unit is (a) 20 N/mm (b) 30 N/mm (c) 45 N/mm (d) 90 N/mm
Last Answer : (a) 20 N/mm
Description : P and Q finished a work in 36 days; Q and R can do it in 60 days; P and R can do it in 45 days. In what time can P alone do it. a) 30 days b) 60 days c) 90 days d) 120 days
Last Answer : B (P+Q)'s 1 day work = 1/36 ---1 (Q+R)'s 1 day work = 1/60 ----2 (P+R)'s 1 day work = 1/45 ----3 Adding 1 & 2 & 3 we get 2(P+Q+R)'s 1 day work = 1/36 + 1/60+ 1/45 =(5+3+4)/180 = 12/ ... +R)'s 1 day work - (Q+R)'s 1 days work = 1/30 - 1/60 = 2-1/60 = 1/60 P alone can do the work in 60 days.
Description : A mixture of 90 kg of rava and sugar contains 90% of sugar. The new mixture is formed by adding 30 kg of sugar. What is the percentage of sugar in the new mixture? a) 45 1/2 b) 60 1/5 c) 45 1/2 d) 92 1/2 e) 98 1/2
Last Answer : Answer: D 90 kg = 81 kg sugar 9 kg rava Adding = 30 kg sugar Total = 111kg sugar 9kg rava (new) 111/120 × 100 = 92.5 =92 1 /2
Description : Find the potential of the function V = 60cos θ/r at the point P(3, 60, 25). a) 20 b) 10 c) 30 d) 60
Last Answer : b) 10
Description : The minimum impedance of a 75 ohm transmission line with a SWR of 2.5 is a) 100 b) 50 c) 25 d) 30
Description : The torque expression of a current carrying conductor is a) T = BIA cos θ b) T = BA cos θ c) T = BIA sin θ d) T = BA sin θ
Last Answer : c) T = BIA sin θ
Description : Find the torque of a loop with magnetic moment 12.5 and magnetic flux density 7.65 units is a) 95.625 b) 65.925 c) 56.525 d) 65.235
Last Answer : a) 95.625
Description : Calculate the magnetic moment when a field of B= 51 units is subjected to a torque of 20 units. a) 0.39 b) 4.2 c) 2.55 d) 3.21
Last Answer : a) 0.39
Description : The magnetic moment and torque are related as follows a) T = BM b) B = TM c) M = TB d) T = M
Last Answer : a) T = BM
Description : The torque of a conductor is defined only in the case when a) The field is perpendicular to the loop b) The plane of the loop is parallel to the field c) The plane of the loop is perpendicular to the current direction d) The field and the current direction are same
Last Answer : b) The plane of the loop is parallel to the field
Description : The torque on a conductor with flux density 23 units, current 1.6A and area 6.75 units will be a) 248.4 b) 192.6 c) 175.4 d) 256.9
Last Answer : a) 248.4
Description : In an field having a force of 12N and distance 20cm, the torque will be a) 0.24 b) 2.4 c) 24 d) 12/20
Last Answer : b) 2.4
Description : The angle between a principal plane and a plane of maximum shear is a. 30 0 b. 60 0 c. 90 0 d. None
Last Answer : d. None
Description : The gang angle of disc harrow is adjusted in the range of: a) 0-30 c) 30-60 b) 60-90 d) Above 90
Last Answer : B
Description : If the incident ray falls directly on the normal. What will be the angle of incidence .? a ) 0 b)30 c)60 d)90
Last Answer : a ) 0
Description : A light ray traveling in benzene strikes the benzene-air surface at the critical angle. The angle of refraction of the light ray is: w) 30 degrees x) 60 degrees y) 90 degrees z) 180 degrees
Last Answer : ANSWER: Y -- 90 DEGREES
Description : The greatest induced EMF will occur in a straight wire moving at constant speed through a uniform magnetic field when the angle between the direction of the wire's motion and the direction of the magnetic field is w) 0 degrees x) 30 degrees y) 60 degrees z) 90 degrees
Last Answer : ANSWER: Z -- 90 DEGREES
Description : The direction of projection for the range of a projectile to be maximum on an inclined plane having angle of inclination 30? to the horizontal, whould be a.45? with horizontal b.30? with vertical c.30? with horizontal d.60? with inclined plane e.45? with inclined plane
Last Answer : b. 30? with vertical
Description : A body of weight 100 kg is placed on a horizontal plane. A horizontal force of 30 kg is applied and the block is just on the point of motion. The angle of friction is a.About 16? b.30? c.45? d.60? e.None of the above
Last Answer : a. About 16?