ELECTRICAL 1ST YEAR EXAM STUDY WITH 100% CORRECT ANSWERS 2024 LATEST UPDATE

(a) A die can be used to make a taper thread on the outside of a piece of conduit T/F Safety True (a)The lowest range of current in which painful shock is felt normally a) 1mA b)1-8mA c)8-15mA d)15-20MA e)20-75MA Safety C) 8-15 ma- painful shock control not lost Brainpower Read More 0:12 / 0:15 (a)the best way to rescue a person who is in contact with a 480 V electrical circuit is Safety use a loose dry clothing to pull them away (a)Your notes divide machine taps into three groups a) metric, imperial coarse, and imperial fine b)american,canadian,and british taps c)bottoming,plug and taper taps Safety C) bottoming, plug and taper taps (a)the electrician is responsible for: a)His/her own safety b)assisting in maintaining a clean work site c)being on the lookout for electrical hazards d) all of the above Safety d) All of the above (a)Refer to figure 1lm1.02 in the diagram section. which of the four diagram illustrates pump pliers,diagram: A) B) C) D) Safety A (a) Hack saw, Describe pitch Safety Pitch- # of teeth per inch tpi (a)Hack saw What is concidered good # of TPI for thin material Safety a Large number is considered fine- there for good for thin material (a)Hacksaw What is concidered good # of TPI for thick material Safety a Low number of TPI is good for thick material (a)Hack Saw What is a good choice of TPI for EMT Safety 32TPI (a)Hacksaw What is a good choice for rigid conduit Safety 18TPI (a)Hacksaw What is a good rule of thumb is that _____ teeth should be in contact with the work surface at any time Safety that ___2___ teeth (a)What is the lowest range of current in which painful shock and loss of muscular control is experienced a) 1 mA b)1- 8 mA c)8-15mA d)15-20mA e)20-75 mA Safety D- 15-20 mA, Pain with adjacent muscle control loss (a)Type of dies which commonly available are: a)metric or N.C(National coarse) and N.P.T (National pipe thread) b)N.S National smooth;N.C(National coarse) and N.P.T (National Pipe thread) c) N.F (National fine), N.C(National Coarse) and N.P.T (National Pipe Thread) Safety A) Metric or N.C(National coarse) and N.P.T ( National Pipe thread) (a)A Taper tap is used to make: Safety Straight threads in a hole (a)The lowest range of current in which brething difficulty may be experience is normally a)1-8 mA b)8-15 mA c)15-20 mA d)20-75 mA e)100-200 mA Safety d) 20-75mA (a)The amount of current which can cause severe burns and severe muscular contraction and from which the victim can sometimes be revived with proper treatment is Safety Over 200mA (a)A good choice of blade for cutting EMT would have how many teeth per inch? Safety 32 (a)a 1/4 electric drill has sufficient torque to supply the needs of most electricians T/F Safety False (a)The size of a standard blade screw driver is determined by the_________ of the _________ and the _______ of the ______ ______ Safety The size of a standard blade screw driver is determined by the length of the shank and the width of the blade tip (a)Which of the following represents the correct use of a hack saw: a) keep the saw a long distance away from the support point b)use a sharp blade of the correct pitch c)if the blade breaks, replace it and start a new cut if necessary d)all of the above are correct e) only B and C are correct Safety E) only b and c are correct (a)THe amount of current which will cause a sensation of shock but is not painful (for most people) Safety 1-8mA (a)What is the legislation that details legal responsibility for worker safety Safety Occupational Health and Safety act (a)It is the workers' responsibility to ensure that rented equipment is in a safe operating condition when it arrives at the job site T/F Safety False- the supplier of the equipment is responsible for the safe operating condition of the equipment when it arrives at the job site (a) Name three major components of the Whmis Program Safety Labels MSDS Worker education (A) What amount of current causes ventricular fibrillation of the heart? Safety 100-200mA (a) An extension ladder should be placed with its base ______ of the length of the ladder from the wall it is leaning against Safety 1/4 (a) The top of a step ladder is a safe place to keep your tools while you are working from the ladder false you should never leave tools on the top of a step ladder (A)diagonal cutting pliers are used for: Cutting wires in tight spots (a) a Hand-Held vise would best describe adjustable locking pliers (a) a square-tipped screwdriver is also known as a__________ robertson (a)the direction a pipe wrench is placed on a pipe makes no difference if you want to turn the pipe one way or the other False, a pipe wrench is designed to grip in one direction (a) the pitch of a hacksaw blade refers to: the number of teeth (A)At a jobsite where safey glasses are required, they must be worn even though you already wear prescription glasses true (a)Cutting oil must be used when threading steel true (a)Fish tapes are made of: steel,nylon or fiberglass (a)the mould for exothermic welding is made of: graphite (a) explosive actuated tools are safe and easy to operate tools that may be used by anyone at the job site false, OHSA requires that a user of an explosive actuated tool must be properly trained (a) A lock used to lockout equipment must have only one key, your boss should not have a key for your lockout equip True (a) describe six basic steps for locking out and re-energizing equipment when you need to work on it Safety a) Inform everyone who needs to know that the equipment needs to be shut down and for what reason b)shut down the equipment by the normal shut down procedure c)operate the energy isolating devices to disc onnect the equipment from the source of supply d)install your lock on each of the isolating devices and tag the logs e)Check the equipment and confirm its isolated f) After work is completed, check the area and confirm that it is safe to re-energize the equip (b)What are the applications for a Voltmeter Meters Measures Voltage (b)What are the applications for a Ammeter Meters measures Current (b)What are the applications for a Ohmmeter Meters Measures resistance (b)What are the applications for a Megger Meters megger measures high resistance values (b)What are the applications for a Wattmeter Meters Measures Electrical power (b)What are the applications for a Multimeter Meters Multimeter measures voltage,current or resistance (b)Is it necessary to de-energize a circuit before connecting an ammeter into it? Meters Yes (b)To measure a DC voltage, you would use a/an: Meters DC Voltmeter (b)If a circuit has a direct current supply, correct ammeter polarity connections must be observed to prevent the pointer on an analog scale from swinging Meters Downscale (b)You have established the approximate value of the voltage to be measure on a circuit, the Voltmeter range that you select will be: Higher,lower,the same as the expected voltage Meters Higher than the expected voltage (b)An Analog ohm meter must be zeroed each tim a new resistance multiplier setting is chosen. How do you zero this ohm meter? Meters Connecting the two leads adjust the adjustment nob till your at zero (b)the majority of meggers have output voltages at : Meters 500V to 1000V (b)Is it necessary to observe the polarity marks when connecting a wattmeter into a circuit? Meters Yes (b)An analog meter uses a/an ________________ and a calibrated _______ to indicate electrical values Meters An analog meter uses a pointer and a calibrated scale to indicate electrical values (b) A linear scale has divisions that are unequally spaces T/F Meters False, they are equal (b)State weather the following meters have linear or non-linear scales: a)Voltmeter:____________ b)Ammeter: c)Ohmmeter: d)Megger e) Wattmeter Meters a) Voltmeter- Linear b)ammeter-Linear c)ohmmeter-non-linear d)megger- non-linear e)wattmeter -Linear (b)A digital meter displays a numerical value T/F Meters True (b)The resistance range setting on a digital multimeter is also a multiplier T/F Meters False (b)You are using a digital voltmeter to measure voltage. What does it mean if the numbers displayed are flashing off and on? Meters If the numbers displayed on a digital meter flass on and off, this indicates that the measured value is greater then the range setting (b)What does it mean if a digital meter displays a negative number Meters When a negative sign is shown along the DC numerical value, the meter leads have been connected in reverse polarity (b) You are using a voltmeter to measure a dec voltage. The positive lead of the voltmeter is connected to the ________ conductor of the circuit and the negative lead of the voltmeter is connected to the _________ conductor of the circuit Meters