Description : In the subtract mode, which portion of the problem is complemented?
Last Answer : Subtrahend.
Description : C0 continuity refers to a.Common tangent b.Common curvature c.Common point d.Common normal
Last Answer : c.Common point
Description : Consider a full-adder with the following input values: (a) x=1, y=0 and Ci(carry input) = 0 (b) x=0, y=1 and Ci = 1 Compute the values of S(sum) and C0 (carry output) for the above input values. (A) S=1 , C0= 0 and ... C0= 1 (C) S=1 , C0= 1 and S=0 , C0= 0 (D) S=0 , C0= 1 and S=1 , C0= 0
Last Answer : (A) S=1 , C0= 0 and S=0 , C0= 1
Description : Richard, CPA, performs accounting services for Norton Corporation. Norton wishes to offer shares to the public and asks Richard to audit the financial statements. Richard refers Norton to Cruz, CPA, who is more ... a. Only Richard b. Both Richard and Cruz c. Only Cruz d. Neither Richard nor Cruz
Last Answer : Both Richard and Cruz
Description : What type of logic gates are added to a parallel adder to enable it to subtract?
Last Answer : X-OR gates.
Description : Multimode optical fibers can have a step-index or graded index refractive index profile. Which fiber, multimode step-index or multimode graded-index fiber, usually performs better?
Last Answer : Multimode graded-index fiber
Description : What is a central set of programs called that manages the execution of other programs and performs common functions like read, write, and print?
Last Answer : Operating system.
Description : The head driver circuit of a tape recorder’s FM record electronics (figure 5-4) performs what function?
Last Answer : It amplifies the frequency-modulated output from the record oscillator and sends it to the record head.
Description : The equalization and phase correction circuit in a tape recorder’s direct reproduce electronics (figure 5-2) performs what function?
Last Answer : It generates an equalization signal which corrects any frequency response problems in the input signal from the pre-amplifier circuit.
Description : The head driver circuit in a tape recorder’s direct record electronics component (figure 5-1) performs what function?
Last Answer : It takes the signal from the summing network, amplifies it, and sends it to the record head for recording.
Description : The control electronics component of a floppy or hard disk drive performs what three main functions?
Last Answer : a. Spins the disk at the correct speed. b. Moves the heads across the recording surface. c. Tells the write/read heads when to write data and when to read it.
Description : A mode where the entire magnetic field is in the transverse plane and has no portion parallel to the length axis.
Last Answer : TM mode
Description : Which portion of a sine-wave input is retained in the output of a series-negative limiter?
Last Answer : Positive.
Description : Which portion of a sine-wave input is retained in the output of a series-positive limiter?
Last Answer : Negative.
Description : At what portion of the magnetization curve should a magnetic amplifier be operated?
Last Answer : . The knee of the curve.
Description : If a wire passes through a connector what portion of the aircraft wire identification number changes?
Last Answer : Wire segment letter.
Description : Magnetron tuning by altering the surface-to-volume ratio of the hole portion of a hole-and-slot cavity is what type of tuning?
Last Answer : Inductive.
Description : What portion of an electron gun causes the electrons to accelerate or decelerate?
Last Answer : The buncher grids.
Description : What type of lens decelerates a portion of a spherical wavefront
Last Answer : Delay lens
Description : Vacuum tubes are designed to operate in what portion of the Ep - Ip
Last Answer : The linear portion.
Description : If one branch of a parallel network is shorted, what portion of circuit current flows through the remaining branches?
Last Answer : None.
Description : What is the effect on total resistance and total current in a circuit if a short occurs in (a) a parallel branch, and (b) in a series portion?
Last Answer : (a) Total resistance decreases, total current increases (b) Total resistance decreases, total current increases
Description : What is the effect on total resistance and total current in a circuit if an open occurs in (a) a parallel branch, and (b) in a series portion?
Last Answer : (a) Total resistance increases, total current decreases (b) Total resistance becomes infinite, total current is equal to zero
Description : Ideally, an oscilloscope presentation should cover what vertical portion of the screen?
Last Answer : At least 60% of the vertical trace.
Description : A portion of Rs.6600 is invested at a 5% per annum, while the remainder is invested at a 3% per annum. If the annual income from the portion earning a 5% per annum is twice that of the other portion, what is the ... investments after one year? a) Rs.270 b) Rs.370 c) Rs.250 d) Rs.280 e) None of these
Last Answer : 5x + 3y = z (Total Income) x + y = 6600 -(1) 5x= 2(3y) 5x – 6y = 0 -(2) By solving (1) and (2) we get, x = 3600 so y = 3000 (3600*5*1)/100 + (3000*3*1)/100 = 180 + 90 = 270 Answer: a)
Description : The electric field is perpendicular to the "a" dimension of a waveguide in what mode?
Last Answer : TE.
Description : In the add mode, what does the output of C2 indicate?
Last Answer : . MSD of the sum.
Description : What is the impedance of a crystal at its resonant frequency when it is used in the series mode?
Last Answer : Minimum.
Description : What is the impedance of a crystal at its resonant frequency when it is used in the parallel mode?
Last Answer : Maximum
Description : Which are more sensitive to alignment errors, single mode or multimode fibers?
Last Answer : Single mode.
Description : Do small core distortions formed by arc fusion's self alignment mechanism have more of an affect on light propagating through multimode or single mode fibers?
Last Answer : Single mode fibers.
Description : Which semiconductor sources (LD or LED) emit more focused light and are capable of launching sufficient optical power into both single mode and multimode fibers?
Last Answer : LDs.
Description : What are the two methods used by fiber manufacturers to fabricate multimode and single mode glass fibers?
Last Answer : Vapor phase oxidation and direct-melt process.
Description : Give two reasons why the value of the normalized frequency (V) is varied in single mode stepindex fibers?
Last Answer : To increase performance and reduce losses caused by bending and splicing.
Description : What happens to the fundamental mode as the operating wavelength becomes longer than the single mode cutoff wavelength?
Last Answer : The fundamental mode becomes increasingly lossy.
Description : In single mode operation, the value of the normalized frequency (V) should remain near the 2.405 level. If the value of V is less than 1, do single mode fibers carry a majority of the power in the core or cladding material?
Last Answer : Cladding material.
Description : What are the two basic types of single mode step-index fibers?
Last Answer : Matched-clad and depressed-clad.
Description : List the standard core sizes for multimode step-index, multimode graded-index, and single mode fibers
Last Answer : Multimode step-index fibers: 50µm and 100µm. Multimode graded-index fibers: 50µm, 62.5µm, 85µm, and 100µm. Single mode fibers: between 8µm and 10µm.
Description : Why is the pi mode the most commonly used magnetron mode of operation
Last Answer : Greater power output.
Description : If the constant-speed electrons in a reflex klystron remain in the repeller field for 1 3/4 cycles, what is the mode of operation?
Last Answer : Mode 2.
Description : What limits the tuning range around the center frequency of a reflex klystron in a particular mode of operation?
Last Answer : The half-power points of the mode.
Description : Will fiber coupling loss generally increase or decrease if the mode field diameter of a single mode fiber is decreased?
Last Answer : Increase.
Description : Explain the difference between multimode and single mode core-cladding concentricity errors.
Last Answer : Multimode core-cladding concentricity error is the distance between the core and cladding centers expressed as a percentage of core diameter while the single mode core-cladding concentricity error is just the distance between the core and cladding centers
Description : The cutoff wavelength of matched-clad and depressed-clad single mode fibers varies according to the fiber's radius of curvature and length. The cutoff wavelength of which single mode fiber type is more sensitive to length
Last Answer : Depressed-clad.
Description : What are the two most common types of mode filters?
Last Answer : Free-form loop and mandrel wrap.
Description : A mode filter is a device that attenuates specific modes propagating in the core of an optical fiber. What mode propagating along single mode fibers do mode filters eliminate?
Last Answer : Second-order mode.
Description : The value of the normalized frequency parameter (V) relates the core size with mode propagation. When single mode fibers propagate only the fundamental mode, what is the value of V?
Last Answer : V≤2.405.
Description : As the core and cladding modes travel along the fiber, mode coupling occurs. What is mode coupling?
Last Answer : Mode coupling is the exchange of power between two modes.
Description : Modes that are bound at one wavelength may not exist at longer wavelengths. What is the wavelength at which a mode ceases to be bound called?
Last Answer : Cutoff wavelength
Description : The mode theory uses electromagnetic wave behavior to describe the propagation of the light along the fiber. What is a set of guided electromagnetic waves called?
Last Answer : Modes of the fiber.