Description : On some electrical generating equipment one outboard bearing pedestal is insulated from the bedplate. This should be checked with a millivolt meter and a jumper. With the millivolt meter connectd between ... then removed to take a second reading. This eliminates the insulating effect of the bearing.
Last Answer : Answer: D
Description : In new Rail as well as second hand rails how much end bends of the rails in vertical are permitted when checked with one meter straight edge before welding? (i) +0.5mm, -0 mm in vertical * (ii) +0.2mm, -.3 mm in vertical (iii) +0.3mm, -2 mm in vertical (iv) 0 mm, +.5 mm in vertical
Last Answer : (i) +0.5mm, -0 mm in vertical *
Description : An open resistor, when checked with an ohm-meter reads?
Last Answer : An open resistor, when checked with an ohm-meter reads infinite.
Description : You have just checked a 1/500-ampere fuse with an ohmmeter and find it is open. Checking the replacement fuse shows the replacement fuse is open also. Why would the replacement fuse indicate open?
Last Answer : The ohmmeter causes more than 1/500 ampere through the fuse when you check the fuse, thus it opens the fuse.
Description : You have just checked a fuse with an ohmmeter and find that the fuse is shorted. What should you
Last Answer : Put it back in the circuit. A good fuse will have zero ohms of resistance.
Description : Besides setting up the meter for expected voltage ranges, what must be strictly observed when taking dc voltage readings?
Last Answer : Polarit
Description : What device is used to switch power from the normal source to an alternate source for nonvital users?
Last Answer : What device is used to switch power from the normal source to an alternate source for nonvital users?
Description : If tube feeding is continuous, the placement of the feeding tube should be checked a) every shift. Each nurse caring for the patient is responsible for verifying that the tube is located ... is unnecessary to check placement. Even though the feedings are continuous, the placement must be assessed.
Last Answer : a) every shift. Each nurse caring for the patient is responsible for verifying that the tube is located in the proper area for continuous feeding.
Description : The charge nurse reported to the chief nurse that the Demerol 50 cc vial inventory has been incorrect for the last 24 hours. The most appropriate action of the narcotic nurse is: A. Log ... by the narcotic nurse D. Review endorsement of clients who received Demerol within the last 24 hours
Last Answer : D. Review endorsement of clients who received Demerol within the last 24 hours
Description : When is an optical power meter measurement recommended for conducting field measurements on installed optical fiber cables or cable plants?
Last Answer : When an installed optical fiber cable or cable plant is less than 50 meters in length.
Description : What condition produces the 10-kHz error signal generated by the metering bridge in the HP- 431C power meter?
Last Answer : An unbalance in the metering bridge.
Description : Answer the following S. No Statement Chose the correct answer OR Fill-in-the-blanks 1 Fyrite measures CO2, O2 and SO2 True/False 2 Ultrasonic Flow Meter uses the principle of____& ____ Fill in the ... of RPM meter is used and for a visible shaft-end _______ type of RPM meter is used.
Last Answer : Sr No Statement Chose the correct answer OR Fill-in-the-blanks Solution 1 Fyrite measures CO2, O2 and SO2 True/False False 2 Ultrasonic Flow Meter uses the principle of____& ____ ... ] 10 In a gasification system the reduction zone is above the combustion zone True/False False
Description : How is emergency power applied when normal power is lost?
Last Answer : Automatically.
Description : What type of bias makes a diode act as a closed switch?
Last Answer : Forward bias.
Description : What type of switch is used if it is necessary to guard against a circuit being accidentally turned
Last Answer : A locked-position switch.
Description : What type of switch should be used to control a circuit that requires a temporary actuation signal?
Last Answer : A momentary switch.
Description : In a heterodyne-type frequency meter, what is the difference between the oscillator frequency and the unknown frequency?
Last Answer : Beat frequency.
Description : What type of frequency meter is shown and what is the value indicated for each meter in figure 1-52?
Last Answer : A) Vibrating-reed, 60Hz. (B) Moving-disk, 58 Hz.
Description : What type of meter is shown and what is the value of the quantity being measured for each meter in figure 1-51?
Last Answer : (A) Megger (megohmmeter), infinity; (B) Wattmeter, 9.5 kilowatts (9,500 watts). (C) Watt-hour meter, 2.693 megawatt-hours 2,693 kilowatt-hours) (2,693,000 watt-hours).
Description : What type of meter is shown and what is the value of the quantity being measured for each meter in figure1-49?
Last Answer : a. A dc ammeter, 90 mA dc b. A dc voltmeter, 200 V dc c. An ac voltmeter, 4.6 V ac d. An ohmmeter, 400 ohms
Description : What type of meter movement reacts to voltage rather than current?
Last Answer : Electrostatic.
Description : What type of meter movement is the d’Arsonval meter movement?
Last Answer : A permanent-magnet moving-coil meter movement used in most electrical and electronic meters.
Description : What is the primary advantage of the electrodynamometer type meter over the D’Arsonval-type meter?
Last Answer : The electrodynamometer-type meter can be used to measure both ac and dc currents.
Description : What components in an electrodynamometer-type meter movement produce the magnetic field?
Last Answer : Fixed coils.
Description : Which is more accurate, the bridge- or reactance-type meter?
Last Answer : Bridge type.
Description : . What type of counter has clock pulses applied to all FFs?
Last Answer : Synchronous.
Description : The illustrated circuit is a wheatstone bridge. If the meter 'G' reads 0 with the switch closed then ________. EL-0024 A. the current through R1 - R2 is equal to the current through R3 - Rx B. the voltage ... of E C. the resistance of Rx is equal to the resistance of R2 D. all the above are true
Last Answer : Answer: A
Description : If reading the AC voltage from the line lead of a 440 VAC controller the range switch illustrated should be set to ___________. EL-0047 A. 1,000 V B. 250 V C. R X 10,000 D. Unable to safely read with this meter.
Description : When paralleling two AC generators, the synchroscope selector switch and frequency meter switch should be set up to sense the frequency of the _____________. A. bus B. generator on the line C. oncoming generator D. bus transfer relay
Last Answer : Answer: C
Description : The frequency of an alternator is controlled from the main switchboard by adjusting the _____________. A. frequency meter B. voltage regulator C. governor control D. sychroscope switch
Description : What happens if a soldering gun switch is pressed for periods longer than 30 seconds?
Last Answer : It will overheat and could burn the insulation of the wire being soldered.
Description : If the ignition switch is placed in the ON position and all the engine instruments operate properly except the gas gauge, where would the fault probably be?
Last Answer : Between point (3) and the gas gauge tank unit ground.
Description : When cleaning the parts of a tape transport, why should you switch lint-free cloths and swabs often?
Last Answer : You may transfer dirt or oxide particles from one part of the tape transport to another
Description : What two types of meters can be used to check a switch?
Last Answer : An ohmmeter and a voltmeter.
Description : What is the voltage rating of a switch?
Last Answer : The maximum voltage allowable in the circuit in which the switch is installed.
Description : What is the current rating of a switch?
Last Answer : The maximum current a switch is designed to carry.
Description : What is the common name used for an accurate snap acting switch?
Last Answer : A microswitch.
Description : In describing a switch by the number of positions of the actuator, what are the two possible configurations for a single pole, double-throw switch?
Last Answer : Two-position and three-position.
Description : What classification of a switch is used when you describe it as a rocker switch?
Last Answer : The type of actuator.
Description : What is one example of an automatic switch?
Last Answer : A thermostat, an automobile distributor, a limit switch, etc.
Description : What is one example of a manual switch?
Last Answer : A light switch, an ignition switch, television channel selector, etc.
Description : What is the difference between a manual and an automatic switch?
Last Answer : A manual switch must be turned on or off by a person. An automatic switch turns a circuit on or off without the action of a person
Description : A split-phase induction squirrel-cage motor will not come up to speed, even though the rated voltage, rated frequency, and rated load are applied. The suspected trouble could be due to _____________. A. a faulty centrifugal switch B. broken rotor bars C. worn bearings D. all of the above
Description : An open-circuit fault between the pressure switch and the 'annunciator module' shown in the illustration would cause the alarm circuit to react in the same manner as if ___________. EL-0094 A. 3.5 ... below switch setting C. 50 PSI were applied to the 'setpoint module' D. the pressure switch closed
Last Answer : Answer: B
Description : What happens when a frequency meter is adjusted to the frequency of the signal being measured?
Last Answer : Power is absorbed by the frequency meter cavity; and a pronounced dip in power, at the output, will be observed.
Description : What is the main difference between a vu and a dB meter?
Last Answer : DB meters are used for measuring sine waves. Vu meters are used to measure the average value of complex waveforms.
Description : Why will a meter indicate more voltage at the battery terminal when the battery is out of a circuit than when the battery is in a circuit?
Last Answer : The internal (source) resistance of the battery will drop some of the voltage
Description : What meter reading is shown on each multimeter in each part of figure 1-50?
Last Answer : (A) 410 mA dc; (B) 3.9 mA ac; (C) -22 V dc; (D) 600 V ac; (E) 1.4 V ac; (F) 1.9 kohms