EEE mcq pdf sppu
Electrical and electronics engineering mcq for pune university (SPPU) online examination (EEE mcq pdf sppu). wheebox sppu pdf download.
Q. 1. Number of parallel paths in a wave winding is equal to———
A : Number of Poles
B : 2
C : Pair of poles
D : 4
2
Q. 2. Atmega 328P has ___ number of general purpose working registers.
A : 16
B : 32
C : 64
D : 128
32
Q. 3. A variable reluctance stepper motor is constructed of ……………… material with salient
poles.
A : Paramagnetic
B : Ferromagnetic
C : Diamagnetic
D : Non-magnetic
Ferromagnetic
Q. 4. Status register is also called ____ register.
A : Stack
B : A
C : flag
D : pointer
flag
Q. 5. Two main parts of an induction motor are___________.
A : stationary stator and rotating rotor
B : slip rings and brushes
C : end rings and rotor bars
D : cage rotor and slip-rings
stationary stator and rotating rotor
Q. 6. Linear induction motor is used in
A : conveyors
B : elevators
C : traction
D : grinders
traction
Q. 7. Arduino Uno has ____ number of analog input pins.
A : 3
B : 5
C : 6
D : 7
6
Q. 8. Arduino is——–
A : a microcontroller
B : a microprocessor
C : an open source hardware
D : an open source hardware and software
an open source hardware and software
Q. 9. The material used for brushes in a DC Machine is ———–
A : Copper
B : Carbon
C : Aluminium
D : Nylon
Carbon
Q. 10. Atmega 328P is a _____ bit microcontroller.
A : 4
B : 8
C : 16
D : 64
8
Q. 11. A ceiling fan uses
A : split phase motor
B : capacitor start and capacitor run motor
C : universal motor
D : capacitor start motor
capacitor start motor
Q. 12. It is advisable to avoid line-starting of induction motor and use starter because………..
A : starting torque is very high
B : motor will run in reverse direction
C : motor takes five to seven times its full load current
D : motor may pick-up very high speed and go out of step
motor takes five to seven times its full load current
Q. 13. Data transmission rate is called as __________.
A : Data rate
B : Nyquist rate
C : Baud rate
D : Serial rate
Baud rate
Q. 14. ATmega328P has——EEPROM.
A : 1 kB
B : 2 kB
C : 3 kB
D : 4 kB
1 kB
Q. 15. In a capacitor start single phase induction motor, the capacitor is connected
A : in series with main winding
B : in series with auxiliary winding
C : in series with both the windings
D : in parallel with auxiliary winding
in series with auxiliary winding
Q. 16. Use of a starter in DC motors is necessary_______
A : since DC motors are not self starting
B : to limit the high initial current
C : to overcome the back emf
D : to increase the armature voltage
to limit the high initial current
Q. 17. Which of the following is a temperature sensor?
A : MQ5
B : LM35
C : MQ6
D : LM25
LM35
Q. 18. When load is removed, the DC motor that will run at the highest speed is the
_____________ motor.
A : Series
B : Shunt
C : Separately excited
D : Compound
Series
Q. 19. Typical brushless DC motor doesn’t have _____
A : Commutator
B : Permanent magnet
C : Electronic controller
D : Fixed armature
Commutator
Q. 20. The drive motor used in a mixer-grinder is
A : DC motor
B : induction motor
C : synchronous motor
D : universal motor
universal motor
Q. 21. What is ATmega328P?
A : 8 bit microprocessor
B : 8 bit microcontroller
C : 32 bit microprocessor
D : 32 bit microcontroller
8 bit microcontroller
Q. 22. Which of the following is the microcontroller used in Arduino UNO?
A : ATmega328P
B : ATmega2560
C : ATmega32114
D : AT91SAM3x8E
ATmega328P
Q. 23. Instructions are coded in ____.
A : hexadecimal
B : decimal
C : binary
D : Octal
binary
Q. 24. The supply terminals for a DC shunt motor are reversed. What will be the effect on the
motor?
A : The direction of rotation will reverse
B : Motor will stop
C : Motor will run at speed lower than the normal speed in the same direction
D : Motor will run at its normal speed in the same direction as it was running
Motor will run at its normal speed in the same direction as it was running
Q. 25. The method which cannot be used for the speed control of induction motor from stator
side is
A : V / f control
B : Controlling number of stator poles
C : stator resistance control
D : rotor resistance control
rotor resistance control
Q. 26. Which of the following are the types of BLDC motor?
A : Synchronous, Induction
B : Unipolar, Bipolar
C : Unipolar, PWM
D : Bipolar, PWM
Unipolar, Bipolar
Q. 27. ATmega328P is available as—–
A : 32 pin IC chip
B : 28 pin IC chip
C : 40 pin IC chip
D : Both 32 pin and 28 pin IC chip
Both 32 pin and 28 pin IC chip
Q. 28. Which method of speed control is used for DC shunt motor to obtain speed below rated
speed?
A : Armature voltage control
B : Flux control
C : Series grouping of coils
D : Potentiometer
Armature voltage control
Q. 29. When rotor is at standstill,_______________.
A : slip is zero
B : slip is one
C : slip is minimum
D : slip is infinity
slip is one
Q. 30. The capacitance of a small single phase motor will be of the order of
A : Farads
B : Few hundred Farads
C : Kilo Farads
D : Micro or pico Farads
Micro or pico Farads
Q. 31. An autotransformer starter is suitable for_____________connected induction motor.
A : Star
B : Delta
C : either star or delta
D : neither star nor delta
either star or delta
Q. 32. Transducer is a device ———————-
A : Which converts a signal from one form to another form
B : Which transmit current from one circuit to another
C : Which transfer power
D : Which transfer voltage
Which converts a signal from one form to another form
Q. 33. At standstill, the frequency of the rotor induced emf is_________________.
A : same as supply frequency
B : less than supply frequency
C : greater than supply frequency
D : zero
same as supply frequency
Q. 34. A capacitor start single phase induction motor can have a power factor of
A : unity
B : 0.8 leading
C : 0.6 leading
D : 0.6 lagging
0.6 lagging
Q. 35. If an induction motor is operating at a point in the high slip region, the motor is
considered to be
A : Stable
B : Unstable
C : Either stable or unstable depending on the torque
D : an alternator
Unstable
Q. 36. An induction motor is _____________.
A : self-starting with zero torque
B : self-starting with high torque
C : self-starting with moderate torque
D : not self-starting
self-starting with moderate torque
Q. 37. By adding external resistance to rotor till it becomes equal to rotor reactance, the
maximum torque can be achieved at start. This statement holds true for
A : Slip ring induction motor only
B : Squirrel cage induction motor only
C : either slip ring or squirrel cage induction motor
D : split phase induction motor
Slip ring induction motor only
Q. 38. Which of the following is not an actuator?
A : solenoid valve
B : electric motor
C : pneumatic cylinder
D : strain gauge
strain gauge
Q. 39. The synchronous speed of an induction motor will be increased by
A : decreasing the supply frequency
B : increasing number of poles
C : increasing the supply frequency
D : increasing the supply voltage
increasing the supply frequency
Q. 40. In a DC shunt motor, as load is increased——–
A : the speed will increase abruptly
B : the speed will increase in proportion to increase in load
C : the speed will slightly reduce
D : the speed will drastically reduce
the speed will slightly reduce
Q. 41. The input signal to a Servo Motor is
A : Digital signal
B : Analog signal
C : Both digital and analog signal
D : Random signal
Both digital and analog signal
Q. 42. If back e.m.f. suddenly disappears in a DC motor,_________
A : Motor will start acting as a generator
B : Motor will stop
C : Winding will burn due to high armature current
D : Nothing will happen
Winding will burn due to high armature current
Q. 43. An induction motor has __________ power factor.
A : zero
B : unity
C : lagging
D : leading
lagging
Q. 44. Atmega 328P is based on which type of architecture?
A : RISC
B : CISC
C : Von Neumann
D : Harvard
RISC
Q. 45. The direction of rotation of a DC motor can be reversed …….
A : By reversing the connections of both armature and the field
B : By reversing the connections of either the armature or the field
C : By reducing the field flux
D : By introducing an extra resistance in the armature circuit
By reducing the field flux
Q. 46. Construction of BLDC is exactly similar to the ____
A : Conventional DC motor
B : Induction motor
C : Permanent magnet synchronous motor
D : Stepper motor
Permanent magnet synchronous motor
Q. 47. Which of the following is not necessarily the advantage of DC motors over AC motors?
A : High starting torque
B : Wide speed range
C : Better speed control
D : Low cost
Low cost
Q. 48. If we interchange the supply terminals of an universal motor, then the motor will
A : Fail to start
B : Rotate in reverse direction
C : Run in same direction
D : Burn out
Run in same direction
Q. 49. The reactance of the rotor circuit of three phase induction motor is maximum at
A : synchronous speed.
B : full load
C : no load
D : stand-still condition
stand-still condition
Q. 50. The starting torque of a 3-phase induction motor can be increased by increasing………..
A : the rotor reactance
B : the rotor resistance
C : the stator resistance
D : the stator reactance
the rotor resistance
Q. 51. A 3-phase 440 V, 50 Hz induction motor has 2 percent slip. The frequency of rotor
current will be
A : 50 Hz
B : 25 Hz
C : 1 Hz
D : 2 Hz
1 Hz
Q. 52. Slip ring induction motor is recommended where
A : speed control is required
B : frequent starting, stopping and reversing is required
C : high starting torque is needed
D : all above features are required
all above features are required
Q. 53. For synchronous speed of rotating magnetic field as 1000 rpm for 50 Hz supply, the
required number of poles are_________.
A : 8
B : 6
C : 4
D : 2
6
Q. 54. The armature torque of the DC shunt motor is practically proportional to——–
A : armature current only
B : field flux only
C : armature current and field flux both
D : back emf and field flux
armature current only
Q. 55. For a 2 pole, 50Hz, 3-phase induction motor; synchronous speed of rotating magnetic
field is——-rpm.
A : 500
B : 1000
C : 1500
D : 3000
3000
Q. 56. In case of DC shunt motors, the speed is dependent on back e.m.f. only because————
A : back e.m.f. is equal to armature drop
B : armature drop is negligible
C : flux is proportional to armature current
D : flux is practically constant in DC shunt motors
flux is practically constant in DC shunt motors
Q. 57. Which of the following single phase motors will operate at high power factor ?
A : shaded pole motor
B : capacitor run motor
C : split phase motor
D : capacitor start motor
capacitor run motor
Q. 58. In three-phase squirrel-cage induction motors,_______________
A : rotor conductor ends are short-circuited through slip rings
B : rotor conductors are short-circuited through end rings
C : rotor conductors are kept open
D : rotor conductors are earthed
rotor conductors are short-circuited through end rings
Q. 59. Which of the following is not found in the bit pattern of a status register?
A : Global interrupt enable
B : Positive Flag
C : Negative Flag
D : Carry Flag
Positive Flag
Q. 60. The demand for a large increase in torque of a DC series motor is met by a _________
A : Large decrease in current
B : Large decrease in speed
C : Large increase in speed
D : Small decrease in speed
Large decrease in speed
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