introduction
microprocessor
micro controller
plc
robotics
100
1) Which of the following is/are characteristic/s of mechatronic products and systems?
a. Functional interaction between mechanical, electronic and information technologies
b. Spacial interaction of subsystems in one physical unit
c. Intelligence related to the control functions of the mechatronics system
d. All of the above
ANSWER: All of the above
100
01․ What is mean by ALU
1) Arithmetic logic upgrade
2) Arithmetic logic unsigned
3) Arithmetic local unsigned
4) Arithmetic logic unit
It is used for arithmetic operations...
100
1. Unlike microprocessors, microcontrollers make use of batteries because they have:
a) high power dissipation
b) low power consumption
c) low voltage consumption
d) low current consumption
Answer: b
Explanation: Micro Controllers are made by using the concept of VLSI technology. So here, CMOS based logic gates are coupled together by this technique that consumes low power.
100
1) When ___________ contacts are actuated, they disrupt the power supply through them.
a. normally open type
b. normally closed type
c. both a. and b.
d. none of the above
ANSWER: normally closed type
100
1. What is the name for information sent from robot sensors to robot controllers?
a) temperature
b) pressure
c) feedback
d) signal
Answer: c
200
2) What is used to make considerable simplification in the devices such as watches and cameras etc. as compared to pure mechanical designs?
a. Actuators with electrical auxiliary energy
b. Amplifiers with electrical auxiliary energy
c. Both a. and b.
d. None of the above
ANSWER: Both a and b.
200
02․ 8085 microprocessor has how many pins
1) 30.
2) 39.
3) 40.
4) 41.
Intel 8085 NMOS microprocessor is a 8 bit, 40 pins IC. It is a 40 pin I.C. package fabricated on a single LSI chip. The Intel 8085 uses a single + 5 V DC supply for its operation.Its clock speed is about 3 MHz. The clock cycle is 320 ns. It has 80 basic instructions and 246 opcodes.
200
2. How are microcontrollers classified on the basis of internal bus width?
a) 8,16,32,64 bits
b) 4,8,16,32 bits
c) 8,16 bits
d) 4,16,32 bits
Answer: b
Explanation: A microcontroller is classified as a 4 bit microcontroller if it executes a nibble at a time. It is called an 8 bit controller if it executes a byte at a time and is called 16 or 32 bit controller if it executes 2 and 4 bytes at a time respectively.
200
2) The type of memory which is fast and temporarily stores the data which are immediately required for use is called as______.
a. HDD
b. ROM
c. RAM
d. SSD
ANSWER: RAM
200
2. Which of the following terms refers to the rotational motion of a robot arm?
a) swivel
b) axle
c) retrograde
d) roll
Answer: d
300
3) Which control system does not have a stability problem?
a. Open loop system
b. Closed loop system
c. Both a. and b.
d. None of the above
ANSWER: Open loop system
300
03․ In 8085 microprocessor, the RST6 instruction transfer programme execution to following location
1) 0030H.
2)0024H.
3) 0048H.
4)0060H.
300
3. Give the names of the buses present in a controller for transferring data from one place to another?
a) data bus, address bus
b) data bus
c) data bus, address bus, control bus
d) address bus
Answer: c
Explanation: There are 3 buses present in a microcontroller they are data bus (for carrying data from one place to another), address bus (for carrying the address to which the data will flow) and the control bus (which tells the controller to execute which type of work at that address may be it read or write operation).
300
3) How is the speed of operation of conventional relay system as compared to digital controllers?
a. very slow
b. very fast
c. same
d. almost similar
ANSWER: very slow
300
3. What is the name for the space inside which a robot unit operates?
a) environment
b) spatial base
c) work envelope
d) exclusion zone
Answer: c
400
4) Data acquisition is the process in which, physical variables from the real world are_____
a. converted into electrical signals
b. modified and converted into a digital format for processing
c. both a. and b.
d. none of the above
ANSWER: both a. and b.
400
04․ In 8085 name/names of the 16 bit registers is/are
1) stack pointer.
2) program counter.
3) both A and B.
4) none of these
Program counter (PC) and Stack pointer (SP) are basically used to hold 16 - bit memory addresses. PC stores the 16-bit memory address of the next instruction to be fetched. SP can be used to temporarily store the 16 - bit memory address as well as data. So PC and SP are 16-bit registers.
400
4. What is the file extension that is loaded in a microcontroller for executing any instruction?
a) .doc
b) .c
c) .txt
d) .hex
Answer: d
Explanation: Microcontrollers are loaded with .hex extension as they understand the language of 0’s and 1’s only.
400
4) The capability of convention relay systems for complex operations is ___________ that of the PLCs
a. poor than
b. excellent than
c. as good as
d. unpredictable as
ANSWER: poor than
400
4. Which of the following terms IS NOT one of the five basic parts of a robot?
a) peripheral tools
b) end effectors
c) controller
d) drive
Answer: a
500
5) Which of the following cannot be considered as data in Data Acquisition System (DAQ)?
a. Temperature
b. Mechanical displacement
c. Flow rate
d. None of the above
ANSWER: None of the above
500
05․ What is SIM?
1)Select interrupt mask.
2) Sorting interrupt mask.
3) Set interrupt mask.
4)None of these.
SIM stands for set interrupt mask which is handling the interrupts in 8085 microprocessor.
500
5. What is the most appropriate criterion for choosing the right microcontroller of our choice?
a) speed
b) availability
c) ease with the product
d) all of the mentioned
Answer: d
Explanation: For choosing the right microcontroller for our product we must consider its speed so that the instructions may be executed in the least possible time. It also depends on the availability so that the particular product may be available in our neighboring regions or market in our need. It also depends on the compatibility with the product so that the best results may be obtained.
500
5) How is the noise immunity of PLCs to electrical noises as compared to that of conventional relay controllers?
a. poor
b. excellent
c. as good as noise immunity of conventional relay controllers
d. unpredictable
ANSWER: poor
500
5. Decision support programs are designed to help managers make:
a) budget projections
b) visual presentations
c) business decisions
d) vacation schedules
Answer: c