? GTU Engineering 1st Year MCQ | Elements of Electrical Engineering-2110005 Winter 2014 Sem-1

MCQ(s) of Elements of Electrical Engineering (2110005) - Winter 2014 Sem-1

    • Q. 1  The electrical force or pressure that causes the electrons to move in a particular direction is called as the ______________
    • (A) Magneto motive force
      (B) Electromotive force
    • (C) Electrostatic force
      (D) Electromagnetic force
    • (B) Electromotive force
    • Q. 2  The charge on each electron is _____________ coulomb.
    • (A) 1.9 × 10-19
      (B) 1.6 × 10-19
    • (C) 1.9 × 10-16
      (D) 1.6× 10-16
    • (B) 1.6 × 10-19
    • Q. 3  The unit of resistivity is ________
    • (A) Ω/m
      (B) Ω-m
    • (C) m/ Ω
      (D) Ω-m -1
    • (B) Ω-m
    • Q. 4  Coulomb’s second law is called as ______ law.
    • (A) Inverse square
      (B) Charge
    • (C) Induction
    • (A) Inverse square
    • Q. 5  The magnetic lines of force are known as lines of ___________
    • (A) magnetic flux
      (B) Electromagnetism
    • (C) Magnetic field
    • (A) magnetic flux
    • Q. 6  Magnetic flux density is measured in _____________
    • (A) wb
      (B) m2/wb
    • (C) wb/m2
      (D) Tesla/m2
    • (C) wb/m2
    • Q. 7  The correct relation between the three permeability’s is ___
    • (A) µr0 µ
      (B) µ0= µ µr
    • (C) µ= µ0 µr
      (D) µr= µ/ µ0
    • (C) µ= µ0 µr
    • Q. 8  Multimeter can be used to measure
    • (A) current
      (B) voltage
    • (C) resistance
      (D) all of the above
    • (D) all of the above
    • Q. 9  Measuring range of voltmeter can be extended by using
    • (A) high shunt resistance
      (B) high series resistance
    • (C) low shunt resistance
      (D) low series resistance
    • (B) high series resistance
    • Q. 10  Full name of ELCB is
    • (A) Earth leakage circuit breaker
      (B) Earth less circuit breaker
    • (C) Earth loser circuit breaker
      (D) Earth leakage circuit broker
    • (A) Earth leakage circuit breaker
    • Q. 11  Ammeter always connected is ________ in a circuit.
    • (A) Parallel
      (B) series
    • (C) both (a) & (b)
      (D) none of the above
    • (B) series
    • Q. 12  Which of the following insulation is used in cables?
    • (A) Rubber
      (B) Paper
    • (C) Porcelain
      (D) any of the above
    • (D) any of the above
    • Q. 13  Blinking of a fluorescent tube may be due to
    • (A) low circuit voltage
      (B) low ballast rating
    • (C) low temperature
      (D) any of the above
    • (D) any of the above
    • Q. 14  The LED is usually made of materials like
    • (A) GaAs
      (B) C and Si
    • (C) GeAs
      (D) None of the above
    • (A) GaAs
    • Q. 15  An alternating quantity is defined as the one which changes its _____________ as well as __________ with respect to time.
    • (A) Value, direction
      (B) Phase, polarity
    • (C) Value, phase
    • (A) Value, direction
    • Q. 16  The ac voltage generators are called as _______
    • (A) Alternator
      (B) Induction generators
    • (C) alternating generator
    • (A) Alternator
    • Q. 17  The maximum value of an ac quantity is called as its ___
    • (A) Amplitude
      (B) Peak to peak value
    • (C) Rms value
    • (A) Amplitude
    • Q. 18  Rms value is also called as __________________ of ac current
    • (A) Light producing component
      (B) heat producing component
    • (C) Useful component
      (D) Useless component
    • (B) heat producing component
    • Q. 19  Peak value of sinusoidal waveform is equal to ___________
    • (A) 0.637 ×Vaverage
      (B) 0.637 Vrms
    • (C) 0.707 Vrms
      (D) 1.414 Vrms
    • (D) 1.414 Vrms
    • Q. 20  Filament material used in fluorescent tube is made up of ____
    • (A) Nicron
      (B) copper
    • (C) tungsten
      (D) aluminum
    • (C) tungsten
    • Q. 21  Complete the formula: 1 radian =_________________degrees
    • (A) π/180
      (B) 180/π
    • (C) π/360
      (D) 360/π
    • (B) 180/π