Inspector of Factories • Paper-I
Data acquisition systems are usually of -
A)
analog type
B)
digital type
C)
integrating type
D)
hybrid type
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'digital type' (Option B).
Inspector of Factories • Paper-I
In a Weston frequency meter, the magnetic axes of the two fixed coils are -
A)
parallel
B)
perpendicular
C)
inclined at 600
D)
inclined at 1200
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'inclined at 1200' (Option D).
Inspector of Factories • Paper-I
Assuming the Fermi level EF to be independent of temperature, EF may be defined as the level with an occupancy probability of -
A)
0%
B)
50%
C)
75%
D)
100%
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is '100%' (Option D).
Inspector of Factories • Paper-I
An induction meter can handle current upto -
A)
10 A
B)
30 A
C)
60 A
D)
100 A
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is '10 A' (Option A).
Inspector of Factories • Paper-I
The Norton equivalent of a circuit consists of a 2 A current sources in parallel with a 4 W resistor. Thevenin equivalent of this circuit is a ________ volt source in series with a 4 W resistor.
A)
2
B)
0.5
C)
6
D)
8
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is '6' (Option C).
Inspector of Factories • Paper-I
A two port network is reciprocal, if and only if -
A)
Z11 = Z22
B)
BC – AD = –1
C)
Y12 = -Y21
D)
h12 = h21
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'Y12 = -Y21' (Option C).
Inspector of Factories • Paper-I
The force experience by a current carrying conductor lying parallel to a magnetic filed is -
A)
BIL
B)
BILsinu
C)
HIL
D)
Zero
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'BIL' (Option A).
Inspector of Factories • Paper-I
The effective resistance between the terminal A and B in the circuit shown in the figure is -
A)
R
B)
R – 1
C)
R/2
D)
6/11R
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'R – 1' (Option B).
Inspector of Factories • Paper-I
While calculating Rth, constant-current sources in the circuit are -
A)
replaced by ‘opens’
B)
replaced by ‘shorts’
C)
treated in parallel with other voltage sources
D)
converted into equivalent voltage sources
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'replaced by ‘opens’' (Option A).
Inspector of Factories • Paper-I
Commonly used instrument in power system measurement are
A)
induction
B)
moving coil or iron
C)
rectifier
D)
electrostatic
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'induction' (Option A).
Inspector of Factories • Paper-I
The phase velocity of waves propagating in a hollow metal waveguide is -
A)
greater than the velocity of light in free space
B)
less than the velocity of light in free space
C)
equal to the velocity of light in free space
D)
equal to the group velocity
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'greater than the velocity of light in free space' (Option A).
Inspector of Factories • Paper-I
When placed in a field, the diamagnetic material -
A)
increase the flux density
B)
decrease the flux density
C)
does not alter the flux density
D)
none of these
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'does not alter the flux density' (Option C).
Inspector of Factories • Paper-I
Maximum power is transferred when the load resistance is -
A)
equal to source resistance
B)
equal to half of the source resistance
C)
equal to zero
D)
none of these
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'equal to zero' (Option C).
Inspector of Factories • Paper-I
If the voltage across a given capacitor is increased, the amount of stored charge -
A)
increases
B)
decreases
C)
remains same
D)
is exactly doubled
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'is exactly doubled' (Option D).
Inspector of Factories • Paper-I
Voltage transfer function of simple RC integrator has -
A)
a finite zero and a pole at infinity
B)
a finite zero and a pole at the origin
C)
a zero at the origin and a finite pole
D)
a zero at infinity and a finite pole
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'a zero at infinity and a finite pole' (Option D).
Inspector of Factories • Paper-I
The basic principle of D’Arsonval instrument is the same as the principle of a -
A)
Moving iron instrument
B)
PMMC instrument
C)
Induction instrument
D)
Moving coil instrument
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'Moving iron instrument' (Option A).
Inspector of Factories • Paper-I
A 10 bit A/D converter is used to digitize an analog signal in the 0 to 5 V range. The maximum peak ripple voltage that can be allowed in the d.c. supply voltage is -
A)
nearly 10 mV
B)
nearly 50 mV
C)
nearly 25 mV
D)
nearly 5.0 mV
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'nearly 25 mV' (Option C).
Inspector of Factories • Paper-I
A power factor meter has -
A)
one current circuit and two pressure circuits
B)
one current circuit and one pressure circuit
C)
two current circuits and one pressure circuit
D)
none of these
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'two current circuits and one pressure circuit' (Option C).
Inspector of Factories • Paper-I
Presence of magnetic flux in a magnetic circuit is due to -
A)
mmf
B)
emf
C)
low reluctance path
D)
none of these
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'none of these' (Option D).
Inspector of Factories • Paper-I
An electromagnetic field is said to be conservative when -
A)
2E (2E/ t2)
B)
2H (2H / t2)
C)
Curl of the field is zero
D)
Divergence of the field is zero
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'Curl of the field is zero' (Option C).
Inspector of Factories • Paper-I
An air gap provided in the iron core of an inductor prevents -
A)
flux leakage
B)
hysteresis loss
C)
core saturation
D)
heat generation
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'core saturation' (Option C).
Inspector of Factories • Paper-I
What is the value of total electric flux coming out of a closed surface?
A)
zero
B)
equal to volume charge density
C)
equal to total charge enclosed by the surface
D)
equal to the surface charge density
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'zero' (Option A).
Inspector of Factories • Paper-I
If a unit step current is passed through a capacitor what will be the voltage across the capacitor?
A)
0
B)
A step function
C)
A ramp function
D)
A impluse function
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'A impluse function' (Option D).
Inspector of Factories • Paper-I
Which one of the following statements is correct? The wavelength of a wave propagation in a waveguide is-
A)
smaller than the free space wavelength
B)
greater than the free space wavelength
C)
directly proportional to the group velocity
D)
inversely proportional to the phase velocity
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'greater than the free space wavelength' (Option B).
Inspector of Factories • Paper-I
A practical voltage source consists of an ideal voltage source in -
A)
Series with an internal resistance
B)
Parallel with an internal resistance
C)
Both (a) and (b)
D)
Neither (a) nor (b)
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'Neither (a) nor (b)' (Option D).
