955 MSS ALL SET QUESTIONS AND ANSWERS
SURE A+
✔✔What type of current are batteries normally?
A. DC
b. AC
c. Eddy
d. Electron flow - ✔✔DC
✔✔What is the smallest unit of an element? - ✔✔Atom
✔✔In the left-hand rule of magnetism, what direction does the thumb point?
A. In the direction of current flow b. In the opposite direction of electron flow
C. In the direction of voltage flow d. In the direction of the pulI of gravity - ✔✔In the
direction of current flow (- to +)
✔✔If amperage increases and voltage stays the same, what has happened to the
resistance? - ✔✔It has decreased
✔✔Grommets are used on a wire way for what purpose? - ✔✔Protection of wiring
insulation
✔✔How do you reverse the turn direction of a three phase motor? - ✔✔Switch 2 of the
hot legs
✔✔One horsepower is equal to how many watts? - ✔✔746W
✔✔What is the peak to peak voltage if the VRMS is 70.7? - ✔✔198VP-P (70.7 x 1.414 x
2= 198 Vp-p)
, ✔✔When replacing a fuse what should you consider? - ✔✔voltage, amperage, and type
(the most important is amperage)
✔✔An NPN uses what kind of polarity voltage at its base to turn it on? - ✔✔Positive
(Emitter, Collector= negative)
✔✔What is the housing of an electronic circuit called? - ✔✔Chassis
✔✔What common device can be used to convert analog to digital? - ✔✔Diode
✔✔What does the color band on a diode indicate? - ✔✔The cathode
✔✔What is ESD? - ✔✔Electrostatic Discharge
✔✔Name 2 bipolar transistors - ✔✔NPN and PNP
✔✔What action should be taken when a drill motor cord is damaged? - ✔✔Replace the
chord
✔✔What equipment should be worn when grinding? - ✔✔Goggles (a face shield is
recommended), gloves, dust mask
✔✔What can be the effects of sparks in a battery room? - ✔✔Explosion
✔✔Why are chain guards used? - ✔✔To safeguard against injury
✔✔Is a fuse considered a safety device? - ✔✔Yes
✔✔Fuses are used to protect what? - ✔✔Personnel and equipment
✔✔What are the three factors necessary for fatal electric shock? - ✔✔A path for current
flow, enough current (100mA can be fatal), duration of time
✔✔RS232 format is considered - ✔✔Serial interface
✔✔If a gear having 100 teeth turns a gear having 25 teeth, what would be the RPM of
the gear with 25 teeth if the gear having 100 teeth is turning at 25 rpm? - ✔✔100rpm
(25:100 = 1:4)
✔✔A 20 turn primary winding has an input voltage of 15V; the secondary winding is 100
turns, what is the secondary voltage? - ✔✔75VAC (20:100 = 5:1)
SURE A+
✔✔What type of current are batteries normally?
A. DC
b. AC
c. Eddy
d. Electron flow - ✔✔DC
✔✔What is the smallest unit of an element? - ✔✔Atom
✔✔In the left-hand rule of magnetism, what direction does the thumb point?
A. In the direction of current flow b. In the opposite direction of electron flow
C. In the direction of voltage flow d. In the direction of the pulI of gravity - ✔✔In the
direction of current flow (- to +)
✔✔If amperage increases and voltage stays the same, what has happened to the
resistance? - ✔✔It has decreased
✔✔Grommets are used on a wire way for what purpose? - ✔✔Protection of wiring
insulation
✔✔How do you reverse the turn direction of a three phase motor? - ✔✔Switch 2 of the
hot legs
✔✔One horsepower is equal to how many watts? - ✔✔746W
✔✔What is the peak to peak voltage if the VRMS is 70.7? - ✔✔198VP-P (70.7 x 1.414 x
2= 198 Vp-p)
, ✔✔When replacing a fuse what should you consider? - ✔✔voltage, amperage, and type
(the most important is amperage)
✔✔An NPN uses what kind of polarity voltage at its base to turn it on? - ✔✔Positive
(Emitter, Collector= negative)
✔✔What is the housing of an electronic circuit called? - ✔✔Chassis
✔✔What common device can be used to convert analog to digital? - ✔✔Diode
✔✔What does the color band on a diode indicate? - ✔✔The cathode
✔✔What is ESD? - ✔✔Electrostatic Discharge
✔✔Name 2 bipolar transistors - ✔✔NPN and PNP
✔✔What action should be taken when a drill motor cord is damaged? - ✔✔Replace the
chord
✔✔What equipment should be worn when grinding? - ✔✔Goggles (a face shield is
recommended), gloves, dust mask
✔✔What can be the effects of sparks in a battery room? - ✔✔Explosion
✔✔Why are chain guards used? - ✔✔To safeguard against injury
✔✔Is a fuse considered a safety device? - ✔✔Yes
✔✔Fuses are used to protect what? - ✔✔Personnel and equipment
✔✔What are the three factors necessary for fatal electric shock? - ✔✔A path for current
flow, enough current (100mA can be fatal), duration of time
✔✔RS232 format is considered - ✔✔Serial interface
✔✔If a gear having 100 teeth turns a gear having 25 teeth, what would be the RPM of
the gear with 25 teeth if the gear having 100 teeth is turning at 25 rpm? - ✔✔100rpm
(25:100 = 1:4)
✔✔A 20 turn primary winding has an input voltage of 15V; the secondary winding is 100
turns, what is the secondary voltage? - ✔✔75VAC (20:100 = 5:1)
