Description : Which technology is used in Compact disks? A) Mechanical B) Electrical C) Electro Magnetic D) Laser
Last Answer : Answer : D
Description : Which of the following have the fastest access time? A) Semiconductor Memories B) Magnetic Disks C) Magnetic Tapes D) Compact Disks
Last Answer : Answer : A
Description : Which of the following are the cheapest memory devices in terms of Cost/Bit? A) Semiconductor memories B) Magnetic Disks C) Compact Disks D) Magnetic Tapes
Last Answer : Answer : C
Description : Computers built before the First Generation of computers were: A) Mechanical B) Electro-mechanical C) Electrical D) None of these
Last Answer : Answer : B
Description : Computers built before the first generation of computer were: a) Mechanical b) Electro-mechanical c) Electrical d) Both 1 and 2 e) None of these
Last Answer : b) Electro-mechanical
Description : Computers built before the first Generation of computers were 1) Mechanical 2) Electro-mechanical 3) Electrical 4) None of these
Last Answer : 2) Electro-mechanical
Description : Computers built before the first Generation of computers were 1 Mechanical 2 Electro-mechanical 3 Electrical 4 None of these
Last Answer : 2 Electro-mechanical
Description : A compact disc (CD) is a data storage system of the type : (1) Magnetic (2) Optical (3) Electrical (4) Electromechanical
Last Answer : Optical
Description : Which technology is more reliable? A) Mechanical B) Electro-Mechanical C) Electronic D) For reliability it does not matter. So all of above are reliable
Description : An approximate estimation of total dissolved solids of a given water sample is often made by measuring (a) Electrical conductivity of the water sample (b) Electro-magnetic conductivity of the water sample (c) Sound conductivity of the water sample (d) Thermal conductivity of the water sample
Last Answer : (a) Electrical conductivity of the water sample
Description : Which of the following is not electro-mechanical computer? A) Z3 B) ABC C) mark I D) ENIAC
Description : Which of the following have low failure rate? A) mechanical devices B) electronic devices C) electro-mechanical devices D) None of above
Description : Why ABC is considered electro-mechanical computer? A) Because it was invented before electronic computers were developed B) Because there are wheels, drums, bars to rotate and move to produce result C) Because they use the flow of electrons in different component D) None of above
Description : Which of the following is not electro-mechanical computer? A) Mark I B) ABC C) Zuse D) UNIVAC
Description : When was the first electro-mechanical computer developed? A) 1880 B) 1990 C) 1944 D) None of above
Description : Embedded system is______ A. An electronic system B. A pure mechanical system C. An electro-mechanical system D. (A) or (C)
Last Answer : D. (A) or (C)
Description : For reproducing sound, a CD (Compact Disc) audio player uses a 1) quartz crystal 2) titanium needle 3) laser beam 4) barium titanium ceramic
Last Answer : 3) laser beam
Description : Magnetic disks are the most popular medium for A) Direct access B) Sequential access C) Both of above D) None of above
Description : The ALU of a computer normally contains a number of high speed storage element called A) Semiconductor memory B) Registers C) Hard disks D) Magnetic disk
Description : Which of the following is used as a primary storage device? A) Magnetic drum B) Hard Disks C) Floppy D) All of above
Description : Which among the following memory is capable of operating at "electronics speed": a) Semiconductor memory b) Magnetic Disks c) Magnetic Drums d) None of The Above
Last Answer : a) Semiconductor memory
Description : ROM is composed of 1) Magnetic cores 2) Micro-processors 3) Photoelectric cells 4) Floppy disks
Last Answer : 2) Micro-processors
Description : Which of the following is a storage device that uses rigid, permanently installed magnetic disks to store data/information - 1) Floppy diskette 2) Hard disk 3) Permanent disk 4) None of these
Last Answer : 2) Hard disk
Description : Which of the following is an example of storage devices? 1) Magnetic disks 2) Tapes 3) DVDs 4) All of these
Last Answer : 4) All of these
Description : Which of the following is an example of an optical disk? 1) Magnetic disks 2) Memory disks 3) Data bus disks 4) Digital versatile disks
Last Answer : 4) Digital versatile disks
Description : Which of the following is a storage device that uses rigid, permanently installed magnetic disks to store data/information - 1 Floppy diskette 2 Hard disk 3 Permanent disk 4 None of these
Last Answer : 2 Hard disk
Description : Which of the following is an example of storage devices? 1 Magnetic disks 2 Tapes 3 DVDs 4 All of these
Last Answer : 4 All of these
Description : Which of the following is an example of an optical disk? 1 Magnetic disks 2 Memory disks 3 Data bus disks 4 Digital versatile disks
Last Answer : 4 Digital versatile disks
Description : Which of the following storage device can be used for storing large backup data? (a) Floppy disks (b) Hard disk (c) Magnetic tapes (d) None of these -Technology
Last Answer : "B) Hard Disk.
Description : 5. Who built the first working, programmable, electro mechanical computer? -Discoveries and Inventions
Last Answer : Explanation: Konrad Zuse built the world's first program-controlled computer.
Description : What are different types of principles of operation of electro-mechanical relays?
Last Answer : Answer: Electro-mechanical relays operate by two principles. Electro-magnetic attraction and electromagnetic induction. In electromagnetic attraction relay plunger is drawn to the solenoid or an ... operation is similar to induction motor. Torque is developed by electromagnetic induction principle
Description : A mouse device may be _____________ a) electro-chemical b) mechanical c) optical d) both mechanical and optical
Last Answer : d) both mechanical and optical
Description : Electro-mechanical voltage regulators are generally used in (a) reactors (b) generators (c) transformers (d) all of the above
Last Answer : (b) generators
Description : Dynamo is a device for converting – (1) Heat energy into electrical energy (2) Mechanical energy into electrical energy (3) Magnetic energy into electrical energy (4) Chemical energy into electrical energy
Last Answer : (2) Mechanical energy into electrical energy Explanation: A dynamo is a device for converting mechanical energy into electrical energy, esp. one that produces direct current. A dynamo is an ... were based, including the electric motor, the alternating-current alternator, and the rotary converter.
Description : The Dynamo converts – (1) Electrical Energy into Mechanical Energy (2) Mechanical Energy into Magnetic Energy (3) None of these (4) Mechanical Energy into Electrical Energy
Last Answer : (4) Mechanical Energy into Electrical Energy Explanation: Dynamo is a device for converting mechanical energy into electrical energy, especially one that produces direct current. It uses electromagnetic ... mechanical rotation into a pulsing direct electric current through the use of a commutator.
Description : The dynamo converts – (1) mechanical energy into electrical energy (2) electrical energy into mechanical energy (3) mechanical energy into magnetic energy (4) magnetic energy into mechanical energy
Last Answer : (1) mechanical energy into electrical energy
Description : A dynamo is used to convert – (1) mechanical energy into electrical energy (2) electrical energy into mechanical energy (3) electrical energy into magnetic energy (4) magnetic energy into mechanical energy
Last Answer : (1) mechanical energy into electrical energy Explanation: A dynamo converts mechanical energy into electrical energy by taking advantage of a phenomenon known as electromagnetic induction. It is an electric generator that is similar to those that provide electricity to our homes.
Description : A nerve impulse is essentially a wave of A A. Electrical charge B. Mechanical Charge C. Magnetic charge D. All of the these
Last Answer : Electrical charg
Description : From the following, which one is a type of vibration measuring instrument? A Mechanical B Electrical C Magnetic D All of the above
Last Answer : D All of the above
Description : From the following, which one is a type of vibration measuring instrument?(A) Mechanical (B) Electrical (C) Magnetic (D) All of the above
Last Answer : (D) All of the above
Description : A fuel cells converts ………energy into electrical energy A. Mechanical B. Magnetic C. Solar D. Chemical
Last Answer : D. Chemical
Description : The dynamo is a device for converting (1) Heat energy into electrical energy (2) Mechanical energy into electrical energy (3) Magnetic energy into electrical energy (4) None of these
Last Answer : (2) Mechanical energy into electrical energy
Description : The Dynamo converts (1) Electrical Energy into Mechanical Energy (2) Mechanical Energy into Magnetic Energy (3) None of these (4) Mechanical Energy into Electrical Energy
Last Answer : Mechanical Energy into Electrical Energy
Description : The dynamo converts (1) mechanical energy into electrical energy (2) electrical energy into mechanical energy (3) mechanical energy into magnetic energy (4) magnetic energy into mechanical energy
Last Answer : mechanical energy into electrical energy
Description : A dynamo is used to convert (1) mechanical energy into electrical energy (2) electrical energy into mechanical energy (3) electrical energy into magnetic energy (4) magnetic energy into mechanical energy
Description : Dynamo is a device for converting (1) Heat energy into electrical energy (2) Mechanical energy into electrical energy (3) Magnetic energy into electrical energy (4) Chemical energy into electrical energy
Last Answer : Mechanical energy into electrical energy
Description : Name any two electrical machines used in electro agro system.
Last Answer : Electrical machines used in electro agro system: 1) Three phase induction motor for pumping of water 2) Single phase induction motors for cutting purpose 3) PMDC motor for insecticide spraying machines