BE8253 important 16 Mark Questions Basic Electrical Electronics and Instrumentation Engineering

BE8253 important 16 Mark Questions Basic Electrical Electronics and Instrumentation Engineering Regulation 2017 Anna University free download

Basic Electrical Electronics and Instrumentation Engineering important 16 Mark Questions pdf free download

Sample BE8253 important 16 Mark Questions:

Part B – BE8253 important 16 Mark Questions Basic Electrical Electronics and Instrumentation Engineering

1. Calculate
(i) Equivalent resistance across the terminal of the
supply (8)
(ii) Total current supplied by the source (5)
(iii) Power delivered to 16Ω resistor in the circuit shown
below: (3)
BTL – 3 Apply (BE8253 important 16 Mark Questions)
2. (i) Describe Kirchhoff’s laws. (4)
(ii) For the circuit shown in the figure determine the
current through 6Ω resistor. (12)
BTL – 2 Understand

1. Obtain expression for power and power factor for three phase
AC star connected balanced load circuit. (16)
BTL – 1 Remember
2. (i) Two impedances (8+j10) ohm and (7+9j) ohm are
connected in parallel. Find magnitude and phase angle of
total impedance. Another impedance (5-j2) ohm is
connected in series with above combination. Find overall
impedance. (8)
(ii) A 3ϕ, 200 kW, 50 Hz delta connected induction motor is
supplied from a 3ϕ, 400 V, 50 Hz supply system. The
efficiency and power factor of 3ϕ induction motor are
91% and 0.86 respectively. Calculate
a) Current in each motor phase (4)
b) Line Current. (4)
BTL – 3 Apply
3. A three phase, balanced delta connected load of (4+j8)Ω,
3- φ balanced supply. Determine the phase currents and line
currents, assume the phase sequence to be RYB. Also
calculate the power drawn by the source. (16)
BTL – 1 Remember (BE8253 important 16 Mark Questions)
4. A balanced star connected load having an impedence
(15+j20)Ω per phase is connected to a three phase 440V, 50
Hz supply. Find the line currents and the power absorbed by
the load. Assume RYB phase sequence. (16)
BTL – 1 Remember
5. Three impedences Z1=20∟300Ω, Z2=40∟600 and Z3=10∟-900Ω
are delta connected to a 400V 3φ system as shown below.
Determine the
(i) Phase currents (6) (BE8253 important 16 Mark Questions)
(ii) Line currents and (6)
(iii) Total power consumed by the load. (4)