On This Page
This set of Mechatronics Multiple Choice Questions & Answers (MCQs) focuses on Mechatronics Set 11
Q1 | Which command of an LCD is used to shift the entire display to the right?
- 0x1c
- 0x18
- 0x05
- 0x07
Q2 | Which command is used to select the 2 lines and 5*7 matrix of an LCD?
- 0x01
- 0x06
- 0x0e
- 0x38
Q3 | Which of the following step/s is/are correct for sending data to an LCD?
- set the r/w bit
- set the e bit
- set the rs bit
- all of the mentioned
Q4 | Which of the following step/s is/are correct to perform reading operation from an LCD?
- low to high pulse at e pin
- r/w pin is set high
- low to high pulse at e pin & r/w pin is set high
- none of the mentioned
Q5 | Which instruction is used to select the first row first column of an LCD?
- 0x08
- 0x0c
- 0x80
- 0xc0
Q6 | The RS pin is for an LCD.
- input
- output
- input & output
- none of the mentioned
Q7 | A thermistor is a
- sensor
- adc
- transducer
- micro controller
Q8 | What is the difference between LM 34 and LM 35 sensors?
- one is a sensor and the other is a transducer
- one’s output voltage corresponds to the fahrenheit temperature and the other corresponds to the celsius temperature
- one is of low precision and the other is of higher precision
- one requires external calibration and the other doesn’t require it
Q9 | An electronic device which converts physical quantity or energy from one form to another is called
- sensor
- transistor
- transducer
- thyristor
Q10 | What is signal conditioning?
- to analyse any signal
- conversion or modification is referred to as conditioning
- conversion from analog to digital is signal conditioning
- conversion from digital to analog is signal conditioning
Q11 | What steps have to be followed for interfacing a sensor to a microcontroller 8051?
- make the appropriate connections with the controller, adc conversion, analyse the results
- interface sensor with adc and adc with 8051
- interface sensor with the max232, send now to microcontroller, analyse the results
- none of the mentioned
Q12 | Why Vref is set of ADC0848 to 2.56 V if analog input is connected to the LM35?
- to set the step size of the sampled input
- to set the ground for the chip
- to provide supply to the chip
- all of the mentioned
Q13 | A variable reluctance stepper motor is constructed of material with salient poles.
- paramagnetic
- ferromagnetic
- diamagnetic
- non-magnetic
Q14 | A stepper motor having a resolution of 300 steps/rev and running at 2400 rpm has a pulse rate of- pps.
- 4000
- 8000
- 6000
- 10,000
Q15 | If a hybrid stepper motor has a rotor pitch of 36º and a step angle of 9º, the number of its phases must be
- 4
- 2
- 3
- 6
Q16 | The rotor of a stepper motor has no
- windings
- commutator
- brushes
- all of the mentioned
Q17 | The rotational speed of a given stepper motor is determined solely by the
- shaft load
- step pulse frequency
- polarity of stator current
- magnitude of stator current.
Q18 | Which of the following phase switching sequence represents half-step operation of a VR stepper motor ?
- a, b, c,a……..
- a, c, b,a…….
- ab, bc, ca, ab……..
- a, ab, b, bc……..
Q19 | What is the first phase of traffic regulation?
- driver controls
- vehicle controls
- traffic flow regulations
- general controls
Q20 | What is the step angle of a permanent- magnet stepper motor having 8 stator poles
- clear visibility
- easy recognition
- sufficient time for driver
- traffic population
Q21 | The minimum age for attaining a license for a geared vehicle is?
- 16 years
- 18 years
- 20 years
- 21 years
Q22 | Traffic symbols are classified into how many categories?
- one
- two
- three
- four
Q23 | The symbol when violated which may lead to offense is?
- cautionary
- mandatory
- informatary
- both informatory and cautionary
Q24 | Which of the following is a disadvantage in one way traffic?
- increase in average travel speed
- more effective coordination of signal system
- more stream lined movement of vehicles
- more chances of overtaking
Q25 | The total conflict points at a junction on both two way roads are?
- one
- four
- five
- six