Description : What type of flowchart is constructed by the programmer to represent the sequence of operations the computer is to perform to solve a specific problem?
Last Answer : A programming flowchart.
Description : In flowcharting, what method is used to represent different operations, data flow, equipment, and so forth?
Last Answer : Different shaped symbols.
Description : In digital magnetic tape recording, the series of recorded digital pulses can represent what three types of data?
Last Answer : a. Data used by digital computers. b. Pulsed squarewave signals. c. Digitized analog waveforms.
Description : The nature of the entity refers to the following, except: a. The types of investments that it is making and plans to make. b. Other external factors, such as general economic conditions. c. The ... entity is structured and how it is financed. d. The entity's operations, its ownership, and governance
Last Answer : Other external factors, such as general economic conditions
Description : The first machine to successfully perform a long series of arithmetic and logical operations was: A) ENIAC B) Mark-I C) Analytic Engine D) UNIVAC-1
Last Answer : Answer : B
Description : The first machine to successfully perform a long series of arithmetic and logical operations was; a. ENIAC b. Mark I c. Analytic engine d. UNIVAC-I
Last Answer : Mark
Description : The first machine to successfully perform a long series of arithmetic and logical operations was: a. ENIAC b. Mark-I c. Analytic Engine d. UNIVAC-1
Last Answer : b. Mark-I
Last Answer : b. Mark I
Description : In a general-purpose computer, the ability to perform a wide variety of operations is achieved at the expense of what capabilities?
Last Answer : Speed and efficiency.
Description : . How is a general-purpose computer able to perform different operations?
Last Answer : By storing different programs in its internal storage
Description : What is indicated by the number of arrows (closeness of spacing) used to represent an electric field?
Last Answer : The relative strength of the field.
Description : In Manchester encoding, does a low-to-high light level transition occurring in the middle of the bit duration represent a binary 1 or a binary 0?
Last Answer : Binary 0.
Description : In NRZ code, does the presence of a high-light level in the bit duration represent a binary 1 or a binary 0?
Last Answer : Binary 1.
Description : The equation, X = A cos(wt + f) (read: X equals A times the cosine of omega t + phi (fee)), can represent an expression for: w) accelerating due to gravity x) uniform straight line motion y) dc current z) a simple harmonic oscillator
Last Answer : ANSWER: Z -- A SIMPLE HARMONIC OSCILLATOR
Description : On DIP and flat-pack ICs viewed from the top, pin 1 is located on which side of the reference mark?
Last Answer : Left.
Description : Mark the correct option relating to Senior citizen saving account a) Account opening form is Form A & for closing Form E b) Pay in Slip Form D c) Account transfer form is From G d) All the above
Last Answer : d) All the above
Description : What two factors can cause output dc voltage to change?
Last Answer : Ac line voltage and a change in load resistance.
Description : Circuits which maintain constant voltage or current outputs are called dc voltage or dc current ___.
Last Answer : Regulators.
Description : What is the basic difference between the primaries of ac and dc rate generators?
Last Answer : The method of primary excitation (ac and permanent magnet).
Description : What causes dc bias energy to be absorbed by avalanche electrons and given up to the microwave field applied to an avalanche transit-time diode?
Last Answer : The negative-resistance property.
Description : The electrons in the beam of a klystron are speeded up by a high dc potential applied to what elements?
Last Answer : The accelerator grid and the buncher grids.
Description : In the actuator arm assembly of a hard disk drive transport, what device can position the magnetic heads to the correct track of a hard disk more accurately than a dc stepper motor?
Last Answer : Voice coil servo.
Description : What part of a floppy disk drive transport uses a dc stepper motor to position the magnetic heads over the recording surface of a floppy disk?
Last Answer : Actuator arm assembly.
Description : Why does using ac vice dc bias voltage result in a stronger output signal?
Last Answer : Because an ac bias voltage of the proper frequency and level places the input signal away from both steps in the magnetism curve. The result is two undistorted output signals that are combined into one strong output.
Description : What are three advantages of adding an ac bias voltage to the input signal instead of adding a fixed dc bias voltage?
Last Answer : a. Reproduces a stronger output signal. b. Greatly improves the SNR. c. Greatly reduces the natural tape hiss.
Description : Why does adding dc vice ac bias voltage to the input signal result in a poor signal-to-noise ratio (SNR)?
Last Answer : With dc bias, the SNR is poor because only a small portion of the magnetism curve is straight enough to use, thus the output signal is weak compared with the natural tape hiss.
Description : How does dc bias added to the input signal correct the distortion in the output signal?
Last Answer : The dc bias moves the input signal away from the step in the magnetism curve. This prevents the input signal from crossing the zero-point of the magnetism curve.
Description : On the diagram below, name the elements of the vacuum tube and their potentials relative to dc ground. time is an example of what type of transmission?
Last Answer : a. Plate, positive. b. Suppressor grid, negative.
Description : Armature reaction in a dc motor causes a shift of the neutral plane in which direction?
Last Answer : Opposite the rotation.
Description : In a dc motor that must be able to rotate in both directions, how is the direction changed?
Last Answer : By reversing either field or armature connections
Description : What is the load on a dc motor?
Last Answer : The device to be driven by the motor.
Description : What causes counter emf in a dc motor
Last Answer : Generator action.
Description : What are the differences between the components of a dc generator and a dc motor?
Last Answer : There are no differences.
Description : What factors determine the direction of rotation in a dc motor?
Last Answer : Direction of armature current, and direction of magnetic flux in field.
Description : What is the purpose of a dc generator that has been modified to function as an amplidyne?
Last Answer : It can serve as a power amplifier.
Description : What are the three classifications of dc generators?
Last Answer : Series-wound, shunt-wound, and compound-wound
Description : Why are drum-type armatures preferred over the Gramme ring armature in modern dc generators?
Last Answer : Drum-type armatures are more efficient, because flux lines are cut by both sides of each coil.
Description : What is the effect of motor reaction in a dc generator?
Last Answer : A force which causes opposition to applied turning force.
Description : How can field strength be varied in a practical dc generator?
Last Answer : By varying the input voltage to the field coils
Description : What component causes a generator to produce dc voltage rather than ac voltage at its output terminals?
Last Answer : A commutator
Description : Besides setting up the meter for expected voltage ranges, what must be strictly observed when taking dc voltage readings?
Last Answer : Polarit
Description : Why is the dc scale on a multimeter different than the ac scale?
Last Answer : The meter movement reacts to average ac voltage and current and the effective value is desired.
Description : List three meter movements that can measure either ac or dc without the use of a rectifier.
Last Answer : Electrodynamic, moving vane, and hot-wire or thermocouple.
Description : Most large alternators have a small dc generator built into them. What is its purpose?
Last Answer : To provide dc current for the rotating field.
Description : Which of the following factors or conditions is an auditor least likely to plan an audit to discover? a. High turnover of senior management. b. Inadequate monitoring of significant controls. c. Inability to generate positive cash flows from operations. d. Financial pressures affecting employees
Last Answer : Financial pressures affecting employees
Description : A marketing manager for a small computer manufacturer is analyzing the potential effects of political, legal, social, and economic forces on the firm's operations. The marketing manager is examining the ... situation 2. marketing environment 3. trends 4. economic conditions 5. none of these
Last Answer : marketing environment
Description : A series of operations, which takes place in a certain order and restore the initial conditions at the end, is known as A. reversible cycle B. irreversible cycle C. thermodynamic cycle D. none of these
Last Answer : Answer: C
Description : A marketing manager for a small computer manufacturer is analysing the potential effects of political, legal, social, and economic forces on the firm's operations. The marketing manager is ... firm's strategy. A)operating situation B)marketing environment C)trends D)economic conditions
Last Answer : B)marketing environment
Description : Strategic planning: (a) Addresses the organization's basic mission or business, issuing broad statements of purpose or direction that have a long lead time. (b) Involves managers in each unit of ... overall plans of the organization. (d) Determines the day-to-day operations within an organization.
Last Answer : (a) Addresses the organization's basic mission or business, issuing broad statements of purpose or direction that have a long lead time.