Description : Which digital data encoding method records a digital one as a positive pulse and a digital (zero) as a negative pulse and returns the tape to neutral between pulses?
Last Answer : Return-to-zero (RZ) encoding.
Description : Which digital data encoding method helps overcome a tape recorder’s low-frequency response problems by recording two logic levels for each incoming data bit?
Last Answer : Bi-phase level encoding.
Description : What method for encoding digital data enables you to store more data in less space by limiting the distance between pulses on a hard disk?
Last Answer : Run length-limited (RLL) encoding.
Description : Which digital data tape encoding method presets the magnetic tape to all zeros and then records digital ones onto the tape?
Last Answer : Return-to-bias (RB) encoding.
Description : Which of the eight methods for encoding digital data onto magnetic tape is most widely used because it’s accurate, simple, and reliable?
Last Answer : Non-return-to-zero (NRZ) encoding.
Description : What format of digital tape recording takes a serial input stream of data pulses, breaks them up, and records them on more than one data track?
Last Answer : Serial-parallel digital magnetic tape recording.
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 : Phosphorus and nitrogen ions generally get depleted in soil because they usually occur as (a) neutral ions (b) negatively charged ions (c) positively charged ions (d) both positively and negatively charged but disproportionate mixture.
Last Answer : (b) negatively charged ions
Description : A good conductor while carrying current is - (1) alternately charged positive and negative (2) negatively charged (3) positively charged (4) electrically neutral
Last Answer : (2) negatively charged Explanation: Electrons carry current in a good conductor of electricity and they are negatively charged. This makes a good electrical conductor negatively charged.
Description : X-rays are – (1) positively charged particles (2) negatively charged particles (3) neutral particles (4) None of these
Last Answer : (3) neutral particles Explanation: Like gamma rays and neutrons, X-rays are electrically neutral. They have neither a positive nor a negative charge. They cannot be accelerated or made to ... particles (electrons and positrons) and heavy charged particles (protons, alpha particles and heavier ions).
Description : A wire carrying current is – (1) positively charged (2) negatively charged (3) neutral (4) charged with a type depending upon current strength
Last Answer : (3) neutral
Description : When one material is rubbed against the other, then it becomes electrically A. neutral B. charged C. positively charged D. negatively charged
Last Answer : charged
Description : DNA fragments are (a) negatively charged (b) neutral (c) either positively or negatively charged depending on their size (d) positively charged
Last Answer : (a) negatively charged
Description : Aerosols present in atmospheric air may be (A) Positively charged (B) Negatively charged (C) Neutral (D) Combination of all (A), (B) & (C)
Last Answer : (D) Combination of all (A), (B) & (C)
Description : X-rays are (A) Positively charged (B) Negatively charged (C) Neutral (D) Of higher wavelength than visible light
Last Answer : C) Neutral
Description : DNA fragments are: (1) Negatively charged (2) Neutral (3) Either positively or negatively charged depending on their size (4) Positively charged
Last Answer : (1) Negatively charged
Description : X–rays are (1) positively charged particles (2) negatively charged particles (3) neutral particles (4) None of these
Last Answer : neutral particles
Description : A good conductor while carrying current is (1) alternately charged positive and negative (2) negatively charged (3) positively charged (4) electrically neutral
Last Answer : negatively charged
Description : A wire carrying current is (1) positively charged (2) negatively charged (3) neutral (4) charged with a type depending upon current strength
Last Answer : neutral
Description : Older, single-sided, single-density floppy disk drives would probably use what method for encoding digital data onto the floppy disk?
Last Answer : Frequency-modulation encoding.
Description : Normal Probability Curve should be (A) Positively skewed (B) Negatively skewed (C) Leptokurtic skewed (D) Zero skewed
Last Answer : (D) Zero skewed
Description : What happens to the overall gain of a lin-log amplifier as each stage saturates?
Last Answer : Decreases.
Description : What are the three most popular methods for encoding digital data onto magnetic disks?
Last Answer : a. Frequency modulation (FM). b. Modified frequency modulation (MFM). c. Run length limited (RLL).
Description : Which of the following statements is true when the CPA has been engaged to do an attestation engagement? a. The CPA firm is engaged and paid by the client; therefore, the firm has primary responsibility ... . d. As long as CPA firms are competent, it is not required that they remain unbiased.
Last Answer : The CPA firm is engaged and paid by the client, but the primary beneficiaries of the audit are the statement users
Description : Thermococcus, Methanococcus and Methano- bacterium exemplify (a) bacteria whose DNA is relaxed or positively supercoiled but which have a cytoskeleton as well as mitochondria (b) bacteria that ... that lack any histones resembling those found in eukaryotes but whose DNA is negatively supercoiled
Last Answer : (c) archaebacteria that contain protein homologous to eukaryotic core histones
Description : Modern handheld digital tachometers operate by counting light pulses returned to the unit by ______________. A. the tach generator B. either the coupling or shaft C. a small bulb attached to the shaft D. a piece of reflective tape
Last Answer : Answer: D
Description : Do you think this ad positively or negatively affects this company?
Last Answer : Sort of hilarious, but not a good ad. I can’t say why. I guess I just don’t like the “in your face” ness of it.
Description : When negatively charged colloids like `As_(2)S_(3)` sol is added to positively charged `Fe(OH)_(3)` sol in suitable amounts
Last Answer : When negatively charged colloids like `As_(2)S_(3)` sol is added to positively charged `Fe ... colloids. D. They become negatively charged colloids.
Description : Is human blood positively or negatively charged?
Last Answer : Neither, blood is neutral.It does contain both positively and negatively charged ions, butin equal amounts so that they cancel.
Description : When water breaks apart it releases positively charged hydrogen ions and negatively charged ions?
Last Answer : Need answer
Description : DNA topoisomerase I of E. coli catalyses (A) Relaxation of negatively supercoiled DNA (B) Relaxation of positively supercoiled DNA (C) Conversion of negatively supercoiled DNA into positively supercoiled DNA (D) Conversion of double helix into supercoiled DNA
Last Answer : Answer : A
Description : DNA A protein can bind only to (A) Positively supercoiled DNA (B) Negatively supercoiled DNA (C) Both (A) and (B) (D) None of these
Last Answer : Answer : B
Description : The true statement about solutions of amino acids at physiological pH is (A) All amino acids contain both positive and negative charges (B) All amino acids contain positively charged side chains ... amino acids contain only positive charge (D) All amino acids contain negatively charged side chains
Description : Total fixed cost curve is - (1) Vertical (2) Horizontal (3) Positively Sloping (4) Negatively sloping
Last Answer : (2) Horizontal Explanation: The Total Fixed Cost Curve is a curve that graphically represents the relation between total fixed cost incurred by a firm in the short-run product of a good or service and the ... cost are, in fact, fixed, the total fixed cost curve is, in fact, a horizontal line.
Description : Under increasing returns the supply curve is - (1) positively sloped from is to right (2) negatively sloped from left to right (3) parallel to the quantity-axis (4) parallel to the price -axis
Last Answer : (1) positively sloped from is to right Explanation: Supply curve, in economics, is a graphic representation of the relationship between product price and quantity of product that a seller is willing and ... i.e as the price of a commodity increases in the market, the amount supplied increases).
Description : Demand curve of a firm under perfect competition is : (1) horizontal to ox-axis (2) negatively sloped (3) positively sloped (4) U - shaped
Last Answer : (1) horizontal to ox-axis Explanation: Under Perfect Competition, the firm faces a horizontal demand curve. It can sell any quantity desired at the market price, but cannot sell anything above the market price.
Description : Stern is usually - (1) Positively Phototropic (2) Negatively Phototropic (3) Negatively geotropic (4) Positively acrotropic
Last Answer : (1) Positively Phototropic Explanation: Tropism is a growth movement whose direction is determined by the direction from which the stimulus strikes the plant. Most stems are positively phototropic, while most roots are said to be negatively phototropic.
Description : SnO2 forms a positively charged colloidal sol in acidic medium and a negatively charged sol in the basic medium. Why ?
Last Answer : Ans. SnO2 is amphoteric in nature. It reacts with acid eg. HCl to form SnCl4 in the solution. The common Sn4+ ions are adsorbed on the surface of SnO2 particles giving them a positive ... solution. The stannate ions are adsorbed on the surface of SnO2 particles giving them a negative charge.
Description : Which of the following activates Hageman factor in blood clotting? B A. Kinins B. Negatively charged surfaces C. Complement C5a D. Positively charged collagen
Last Answer : Negatively charged surfaces
Description : What is the criterion for DNA fragments movement on agarose gel during gel electrophoresis ? (a) The smaller the fragment size, the farther it moves. (b) Positively charged fragments move to farther end. ... charged fragments do not move. (d) The larger the fragment size, the farther it moves.
Last Answer : (a) The smaller the fragment size, the farther it moves
Description : A zwitterion is (a) an ion that is positively charged in solution (b) an ion that is negatively charged in solution (c) a compound that can ionize both as a base and an acid. (d) a carbohydrate with an electrical charge.
Last Answer : a compound that can ionize both as a base and an acid
Description : What is the criterion for DN A fragments movement on agarose gel during gel electrophoresis ? (1) The smaller the fragment size, the farther it moves (2) Positively charged fragments move to farther ... Negatively charged fragments do not move (4) The larger the fragment size, the farther it moves
Last Answer : (1) The smaller the fragment size, the farther it moves
Description : The true statement about solutions of amino acids at physiological pH is (A) All amino acids contain both positive and negative charges (B) All amino acids contain positively charged side chains ... amino acids contain only positive Charge (D) All amino acids contain negatively charged side chains
Last Answer : (A) All amino acids contain both positive and negative charges
Description : Research confirms that participation and conflict are: (a) positively correlated. (b) counterproductive. ; (c) negatively correlated. ; (d) always present together.
Last Answer : (a) positively correlated.
Description : Marginal cost curve is (a) Positively sloped ; (b) Negatively sloped ; (c) Parallel to X axis ; (d) Parallel to Y axis
Last Answer : (a) Positively sloped
Description : A high voltage applied to a gas discharge tube containing neon gas at very low pressure causes a current to flow through the tube. Which one of the following are the particles that flow towards the ... Are they w) electrons x) protons y) negatively charged neon ions z) positively charged neon ions
Last Answer : ANSWER: Z -- POSITIVELY CHARGED NEON IONS
Description : Stem is usually (1) Positively Phototropic (2) Negatively Phototropic (3) Negatively geotropic (4) Positively acrotropic
Last Answer : Positively Phototropic
Description : Under increasing returns the supply curve is (1) positively sloped from left to right (2) negatively sloped from left to right (3) parallel to the quantity-axis (4) parallel to the price -axis
Last Answer : positively sloped from left to right
Description : Demand curve of a firm under perfect competition is : (1) horizontal to ox-axis (2) negatively sloped (3) positively sloped (4) U – shaped
Last Answer : horizontal to ox-axis
Description : Total fixed cost curve is (1) Vertical (2) Horizontal (3) Positively Sloping (4) Negatively sloping
Last Answer : Horizontal