Description : What vswr is a perfect match between a transmitter and its load?
Last Answer : 1 to 1.
Description : Define VSWR with refernce to standing waves.
Last Answer : Voltage Standing Wave Ratio: The voltage standing wave ratio (VSWR) is the ratio of max voltage to min voltage. VSWR= VMAX /VMIN
Description : A waveguide termination having VSWR of 1.1 is used to dissipate 100 watts of power. The reflected power will be A) 0.2268 W B) 0.5868 W C) 0.3468 W D) 0.4568 W
Last Answer : A waveguide termination having VSWR of 1.1 is used to dissipate 100 watts of power. The reflected power will be 0.2268 W
Description : If Voltage Standing Wave Ratio, (VSWR) of a wave is 2, its reflection coefficient will be _____.
Last Answer : If Voltage Standing Wave Ratio, (VSWR) of a wave is 2, its reflection coefficient will be 1/3.
Description : A loss less line of characteristic impedance Z0 is terminated in pure reactance of –jZ0 value. VSWR is (1) 10 (2) 2 (3) 1 (4) Infinity
Last Answer : A loss less line of characteristic impedance Z0 is terminated in pure reactance of –jZ0 value. VSWR is Infinity.
Description : What unit is used to measure the different wavelengths of light?
Last Answer : Angstrom unit.
Description : Oscilloscopes are used to measure what quantities?
Last Answer : Amplitude, phase, time, and frequency.
Description : When a bridge is used to measure resistance, what is the value of Rx if R1 equals 80 ohms, R2 equals 120 ohms, and R3 equals 280 ohms?
Last Answer : 420 ohms.
Description : What Navy office oversees the MEASURE program?
Last Answer : The Chief of Naval Operations.
Description : What test equipment is designed to generate, modify, or measure a range of parameters of electronic functions of a specific nature required to test a single system or equipment?
Last Answer : Special-purpose electronic test equipment.
Description : What are the three units of measure most commonly used when referring to af power measurements?
Last Answer : DB, dBm, and vu.
Description : What are analog computers designed to measure?
Last Answer : Continuous electrical or physical conditions.
Description : What equipment uses a calibrated resonant circuit to measure frequency?
Last Answer : Wavemeter.
Description : You plan to measure your tape recorder’s SNR. What test equipment will you need?
Last Answer : A VTVM and a signal generator.
Description : Transconductance is a measure of the relationship between what two factors?
Last Answer : The changes in plate current and grid voltage.
Description : What fiber property does numerical aperture (NA) measure?
Last Answer : NA measures the light-gathering ability of an optical fiber.
Description : Primary storage capacities are usually specified in what unit of measure?
Last Answer : Number of bytes.
Description : To measure incident power, you must rotate the coupler detector of the wattmeter so that the arrow indicating power flow points toward which end of the transmission line?
Last Answer : Load.
Description : How is it possible to use a current sensitive meter movement to measure voltage?
Last Answer : Since the resistance of a meter movement remains the same as the pointer is deflected, the amount of current through the movement is proportional to the voltage applied. Therefore, only the scale of the movement must be changed.
Description : What is used to allow an ammeter to measure different ranges?
Last Answer : Shunt resistors (internal or external).
Description : What electrical property does an ammeter measure?
Last Answer : Current.
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 : What value does a meter movement react to (actually measure) when measuring ac?
Last Answer : Average value.
Description : What modification is made to the D’Arsonval meter movement to enable the meter to measure voltage?
Last Answer : A multimeter (high resistance) is placed in series with the coil of the meter.