Electrical Engineering (EE)

• a)
  323 V/V
• b)
  646 V/V
• c)
  969 V/V
• d)
  1292 V/V

• a)
  Yes
• b)
  No

• a)
  for constant L and w, T d μ 1
• b)
  for constant T and w, d μ L2
• c)
  for constant L and T, d μ w2
• d)
  for constant L and d, T μ w

• a)
  Velocity gradient
• b)
  Diffusion
• c)
  Mobility
• d)
  Density gradient

• a)
  c1=c2=c3=c4=0,c1=c5=1/2
• b)
  c0=c1=c2=c3=c4=c5=0
• c)
  c0=c1=c2=c3=c4=c5=1/2
• d)
  None of the mentioned

• a)
  21
• b)
  58
• c)
  40
• d)
  49/9

• a)
  phase constant
• b)
  attenuation constant
• c)
  propagation constant
• d)
  intrinsic impedance

• a)
  dp/dt=-(p-p0)/τp+Dp(d^2p/dx²)-µpd(ρϵ)/dx
• b)
  dp/dt=-(p-p0)/τp-Dp(d^2p/dx²)-µpd(ρϵ)/dx
• c)
  dp/dt=-(p-p0)/τp+Dp(d^2p/dx²)+µpd(ρϵ)/dx
• d)
  dp/dt=(p-p0)/τp-Dp(d^2p/dx²)-µpd(ρϵ)/dx

• A:

  -30 V

• B:

  25 V

• C:

  -20 V

• D:

  15 V

The answer is d.

• a)
  0.11,0.1299    
• b)
  0.12,0.1392
• c)
  0.12,0.1416    
• d)
  0.13.0.1428

• a)
  25 kW
• b)
  12.5 kW
• c)
  20 kW
• d)
  50 kW

• a)
  Mechanical power is absorbed by the machine
• b)
  Mechanical power is delivered by the machine
• c)
  Electromagnetic torque is in same direction of prime mover
• d)
  None of the mentioned

The number of twigs and links in the graph obtained for the given network will be

• a)
  2,2
• b)
  3,2
• c)
  2,3
• d)
  1,2

• a)
  ∫ E.dl = 0
• b)
  ∫ H.dl = 0
• c)
  ∫ B.dl = 0
• d)
  ∫ D.dl = 0

• a)
  –μ J
• b)
  – μ I
• c)
  –μ B
• d)
  –μ H

• a)
  Strain in structure
• b)
  Very low pressure
• c)
  Very high pressure
• d)
  Leakage reactance

• a)
  zero
• b)
  10¹⁰/cm³
• c)
  10⁵/cm³
• d)
  1.5 x 10²⁵/cm³

The switch is at position shown in the figure initially and steady state is from t=0 to t=to. The switch suddenly is thrown to the other position. The current flowing through the 10K resistor from t=0 is?

• a)
  1mA
• b)
  2mA
• c)
  -2mA
• d)
  -1mA

• a)
  0 W
• b)
  0.25 W
• c)
  0.5 W
• d)
  1.0 W

• a)
  p

  -

  a

  and 0
• b)
  p

  -

  a

  and

  a
• c)
  p

  +

  a

  and 0
• d)
  p

  +

  a

  and

  a

• a)
  32 to 33
• b)
  22 to 23
• c)
  15 to 16
• d)
  9 to 23

• a)
  DMA bus
• b)
  Output bus
• c)
  Input bus
• d)
  Data bus

• a)
  is always reverse biased
• b)
  offers very high resistance
• c)
  offers a low resistance
• d)
  remains open

• a)
  Yes
• b)
  No

• a)
  True
• b)
  False

• a)
  0 < K < 6
• b)
  0 < K < 16
• c)
  6< K < 36
• d)
  6< K < 16

 

For the connections shown below, the equivalent logic gate is

• a)
  OR gate
• b)
  AND gate
• c)
  XOR gate
• d)
  NAND gate

• a)
  channel length
• b)
  channel width
• c)
  channel depth
• d)
  channel concentration

• a)
  Nanoseconds to microseconds
• b)
  Nanoseconds to hundreds of microseconds
• c)
  Nanoseconds to tens of microseconds
• d)
  Nanoseconds to milliseconds

• a)
  62.75W
• b)
  4.5275W
• c)
  5.275W
• d)
  0.5275W

• a)
  33% low
• b)
  22% high
• c)
  33% high
• d)
  22% low

• a)
  100 Ic
• b)
  200 Ic
• c)
  400 Ic
• d)
  800 Ic

• a)
  Reduce weight of copper
• b)
  Improve stability
• c)
  Reduce corona
• d)
  Increase power transmission capacity

• a)
  1.15
• b)
  2.15
• c)
  5.21
• d)
  1.52

• a)
  Causal, linear and time varying
• b)
  Causal, non-linear and time varying
• c)
  Non causal, non-linear and time-invariant
• d)
  Non causal, linear and time-invariant

• a)
  maximum current in the circuit
• b)
  cable rating of the circuit
• c)
  fuse rating of the circuit
• d)
  OL letting of the circuit breaker

• a)
  visible light
• b)
  ultraviolet light
• c)
  infra red light
• d)
  fluorescent

• a)
   II
• b)
   III
• c)
   I,III
• d)
  III,II

• a)
  Parallel
• b)
  Perpendicular
• c)
  Elliptical
• d)
  Circular

• a)
  47.905
• b)
  57.905
• c)
  67.905
• d)
  77.905

• a)
  440V
• b)
  420V
• c)
  375V
• d)
  350V

• a)
  0.562V
• b)
  0.785V
• c)
  0.954V
• d)
  0.344V

• a)
  It creates a depletion region at the contact surface
• b)
  It creates a low conductivity path between collector region and contact
• c)
  It reduces a contact resistance
• d)
  It can withstand high voltages as compared to collector region

• a)
  above synchronous speed only
• b)
  below synchronous speed only
• c)
  above & below synchronous speeds both
• d)
  None of the above

• a)
  -13
• b)
  -27
• c)
  -32
• d)
  -58

Calculate the energy in the 10 ohm resistance in 10 seconds.

• a)
   400J
• b)
   40kJ
• c)
  4000J
• d)
  4kJ

• a)
  8.825 kV
• b)
  44.25 kV
• c)
  88.25 kV
• d)
  442.5 kV

• a)
  Amrapali
• b)
  Citta
• c)
  Kisa Gotami
• d)
  Ashvaghosha

• a)
  Both series and parallel
• b)
  Series
• c)
  Parallel
• d)
  Neither series nor parallel

 In the circuit shown below, β =100 and VBE=0.7V. The Zener diode has a breakdown voltage of 6V. Find the operating point.​

• a)
  (6.7V, 5.3mA)
• b)
  (5.7V, 5.3mA)
• c)
  (6.7V, 5mA)
• d)
  (6V, 5mA)

• a)
  18500 Rs
• b)
  16500 Rs
• c)
  17500 Rs
• d)
  15800 Rs

 The equivalent circuit of the inductor shown below is 

• a)
  
• b)
  
• c)
  
• d)
  

A delta load is connected to a balanced 400 V, 3-f supply as shown in figure. The total power dissipated in the network is equal to

• a)
  2 kw
• b)
  4 kw
• c)
  6 kw
• d)
  8 kw

• a)
  Permittivity
• b)
  Permeability
• c)
  Conductivity
• d)
  Resistivity

• a)
  Open circuit voltage
• b)
  Short circuit voltage
• c)
  Both open circuit and short circuit voltage
• d)
  Neither open circuit nor short circuit voltage

The equivalent circuit of the capacitor shown below is

• a)
  
• b)
  
• c)
  
• d)
  

The system with the open -loop transfer function    is

 

• a)
  type 2 and order 1
• b)
  type 1 and order 1
• c)
  type 0 and order 0
• d)
  type 1 and order 2

• a)
  1
• b)
  1.5
• c)
  2
• d)
  2.5

If the secondary winding of the ideal transformer shown in the circuit of figure has 40 turns, the number of turns in the primary winding for maximum power transfer to the 2 resistor will be

• a)
  20
• b)
  40
• c)
  80
• d)
  160

• a)
  to have low breakdown voltage
• b)
  to have high breakdown voltage
• c)
  to have high current variations
• d)
  to maintain perfect quiescent point

• a)
  Mmf
• b)
  Emf
• c)
  Electric potential
• d)
  Magnetic potential

 Match List-I (Logic expression) with List-ll (Equivalent expression) and select the correct answer using the codes given below the lists:

• a)
  a
• b)
  b
• c)
  c
• d)
  d

• a)
  15 kW
• b)
  9 kW
• c)
  12 kW
• d)
  6 kW

Assume that op-amp in figure is ideal. If input V_i is triangular, the output V₀ will be

• a)
  square wave
• b)
  sine wave
• c)
  triangular wave
• d)
  parabolic wave

• a)
  25
• b)
  400
• c)
  0.04
• d)
  1600

• a)
  25-dB    
• b)
  1/25dB
• c)
  48-dB    
• d)
  -48-dB

• a)
  2
• b)
  1
• c)
  0.5
• d)
  0

• a)
  14
• b)
  28
• c)
  7
• d)
  32

• a)
  150
• b)
  30
• c)
  400/3
• d)
  300

• a)
  35.26
• b)
  53.62
• c)
  26.35
• d)
  62.53

• a)
  Ohm’s law and Gauss law
• b)
  Ampere law and Gauss law
• c)
  Ohm’s law and Ampere law
• d)
  Maxwell law and Ampere law

• a)
  collector and emitter terminals
• b)
  base ad collector terminals
• c)
  ground and emitter terminals
• d)
  emitter and base terminals

• a)
  Accumulation of minority charge carriers when it’s in forward bias
• b)
  Accumulation of majority charge carriers when it’s in forward bias
• c)
  Accumulation of minority charge carriers when it’s in reverse bias
• d)
  Accumulation of majority charge carrier when it’s in reverse bias

• a)
  remain unaffected
• b)
  becomes doubled
• c)
  becomes four fold
• d)
  get halved

• a)
  electric current multiplication takes place
• b)
  phenomenon of voltage multiplication takes place
• c)
  electrons are decelerated for a period of time
• d)
  sudden rise in voltage takes place.

• a)
  2.3*time constant
• b)
  2.2*time constant
• c)
  1.5*time constant
• d)
  equals the time constant

• a)
  1.01 A
• b)
  1.1 A
• c)
  900m A
• d)
  10 A

• a)
  MSB: b_N, LSB: b_N
• b)
   MSB: b_N, LSB: b₁
• c)
  MSB: b₁, LSB: b_N
• d)
  MSB: b₁, LSB: b₁

• a)
  1
• b)
  0
• c)
  ∞
• d)
  0.5

• a)
  presence of moisture
• b)
  operating temperature
• c)
  time of application of the voltage
• d)
  all of the above

• a)
  Flexible operation
• b)
  High torque high speed operation
• c)
  Fire and explosion proof operation
• d)
  No leakage

• a)
  10.8henry
• b)
  30.7henry
• c)
  28.8henry
• d)
  15.4henry