Final Exam
2. A ladder needs to be extended 20' from the ground floor to the next landing. How far from the wall should the base of the ladder be? a. 3' b. 4' c. 5' d. 6'
C. 5'
1. You have been provided with an unfamiliar brand of solvent to clean a brake drum. What is the best source for determining whether or not it is safe to use? a. OSHA b. SDS c. Building supervisor d. Local safety committee
SDS
116.If a 120 VDC, 6 watt lamp continuously burns out prematurely, which of the following replacements would last longer? a. 135 VDC, 6 watt b. 120 VAC, 10 watt c. 120 VDC, 10 watt d. 100 VDC, 4 watt
a. 135 VDC, 6 watt
8. If you direct your helpers to retrieve a standard rail,what size should they return with? a. 16' b. 15' c. 12' d. 8'
a. 16'
122.A door motor with no markings on an old elevator has gone bad. You determine that the voltage is 220 VAC from the drawings, and you see that it is a four-pole motor. What is the approximate rated RPM? a. 1800 RPM b. 3600 RPM c. Variable RPM d. It depends on door operator resistance
a. 1800 RPM
36. Youareinstallingeightescalatorsthatrequireninehandrailrollerspernewell.Howmanyrollersareneededforthe entire job? a. 288 b. 144 c. 72 d. 36
a. 288
81. You are working on an elevator installation with four traveling cables hanging on the front side of the hoistway. What is the number of the traveling cable farthest from the rail? a. 4 b. 3 c. 2 d. 1
a. 4
102.Refer to Figure 25. Door motor resistor R3 must be replaced. What is the correct resistance? c
a. 50 ohms b. 8 ohms c. 4 ohms d. 0.125 ohms
149.Refer to Figure 31. While troubleshooting a slow running door operator, you determine speed switches SW1 and SW2 are welded closed. What would be the total resistance in this circuit with the door armature leads lifted? b
a. 80 ohms b. 47.5 ohms c. 40 ohms d. 7.5 ohms
90. You are checking the adjustment of a gate switch on center opening doors. You observe that the contacts of the switch are making up when the leading edges of the doors are 6" apart. What must be done to correct this problem? a. Adjust the gate switch to reduce the distance by 4". b. Adjust the gate switch to reduce the distance by 3". c. Adjust the gate switch to reduce the distance by 2". d. Adjust the gate switch to reduce the distance by 1".
a. Adjust the gate switch to reduce the distance by 4".
61. How should the sections of a 200' vertical raceway with 1/4" gaps be coupled together? a. By using bolts, with the heads inside the ducts b. By using bolts, with the heads outside the ducts c. By welding the joints d. By gluing the joints
a. By using bolts, with the heads inside the ducts
103.While troubleshooting a hydraulic control valve solenoid, a mechanic removed the coil from the solenoid core and applied power. What would happen next? a. Coil current would increase. b. Magnetic field would collapse. c. Applied voltage would increase. d. Current would cease to flow in the coil
a. Coil current would increase.
14. When an elevator travels above the top terminal landing, what prevents the elevator from striking the overhead? a. Counterweight buffer b. Top fascia header plate c. Compensation switches d. Governor overspeed switches
a. Counterweight buffer
131.You are checking the solder appearance on a printed circuit board (PCB) for a possible problem. What finish indication will provide you a clue for needed repair? a. Dull and grainy b. Smooth and shiny c. Unmarred or clean d. Rounded or mounded
a. Dull and grainy
112.Because extreme heat can melt plastic door rollers, what must be installed to prevent the doors from jumping the track? a. Fire hooks b. Closer rods c. Door restrictors d. Upthrust rollers
a. Fire hooks
127. When checking an out of circuit diode with a multimeter, which of the following should be observed? a. Forward bias with low resistance, and reverse bias with high resistance. b. Forward bias with low resistance, and reverse bias with low resistance. c. Forward bias with high resistance, and reverse bias with high resistance. d. Forward bias with high resistance, and reverse bias with low resistance.
a. Forward bias with low resistance, and reverse bias with high resistance.
63. You have been assigned to wire the interlocks on a four stop hydraulic elevator with hoistway access available at the terminal floors. How should the interlocks be wired? a. In series b. In parallel c. In series with the final limits d. In parallel with the 1st floor and 4th floor
a. In series
140.A mechanic is installing a gearless machine in a 20 story building using a drive sheave with U-grooves. Although the U-grooves will extend cable life, they develop less traction. What should be done to increase cable traction? a. Install a secondary sheave b. Install a deflector sheave c. Use traction solvent d. Use cable solvent
a. Install a secondary sheave
120.An AC single-speed elevator sounds as if it is running slow and straining in the hauling direction. You suspect low voltage to the motor. What is the proper method to measure the voltage? a. Measure between T1, T2, and T3 with the motor running. b. Measure L1, L2, and L3 to ground with the motor running. c. Turn the power off and measure between L1, L2, and L3 at the controller. d. Turn the power off and measure between T1, T2, and T3 at the controller.
a. Measure between T1, T2, and T3 with the motor running.
139.When positioning the controllers in an elevator machine room, you find that the dimensions are different than the layout calls for and the controllers must be moved. Which of the following will provide the information needed to determine proper clearances? a. NEC b. ASME c. Electrician d. General contractor
a. NEC
123.While troubleshooting a rotating motor generator set, you find no output from the exciter. Which of the following conditions would cause this problem? a. No residual magnetism in the fields b. A broken permanent magnet field c. Low generator armature brushes d. A grounded interpole field
a. No residual magnetism in the fields
3. Which of the following procedures would you use to get into a pit to service an elevator's oil buffer? a. Operate the bottom hoistway access switch. b. Jump out the doors and run the elevator from the controller. c. Jump out the limits and run the elevator from the controller. d. Operate the elevator from the car top and climb down from the car.
a. Operate the bottom hoistway access switch
15. You are assigned to move job boxes and welding equipment to another construction site. Which of the following procedures should be used to transport gas-welding cylinders? a. Remove gauges, install protective caps, and secure in a vertical position. b. Leave gauges in place, turn off valves, and secure in a horizontal position. c. Leave gauges in place, and secure cart in a vertical position. d. Remove gauges, and lay in a horizontal position.
a. Remove gauges, install protective caps, and secure in a vertical position.
68. When preparing to install decking on a new escalator, which one of the following procedures is correct? a. Remove only protective coating materials that will hinder installation. b. Remove all protective coating materials prior to installation. c. Uncrate all materials and stack them in the stairway for easy access. d. Pre-fit all decking on the floor prior to installation.
a. Remove only protective coating materials that will hinder installation.
142.When installing glass balustrades for an escalator, how should you align the glass panels? a. Scribe between the top and bottom brackets. b. Drop plumb lines from the tangent lines. c. Measure off of the wellway center line. d. Mount a balustrade alignment tool.
a. Scribe between the top and bottom brackets.
65. You observe that a three-lead, three-phase AC hydraulic pump motor has turned in the wrong direction. Which one of the following would you do to remedy the problem? a. Swap T1 and T2 b. Swap T1 and T2, then T2 and T3 c. Add resistance in series with T1, T2, and T3 d. Add resistance in parallel with T1, T2, and T3
a. Swap T1 and T2
28. While reviewing your final layout drawing of a machine room, you notice that a change in the location of the generator is needed. What is the correct course of action? a. The MIC will submit the change to the company supervisor. b. You will submit the change to the general contractor. c. You will submit the change to the company salesperson. d. You will make the needed changes immediately.
a. The MIC will submit the change to the company supervisor.
23. You are plumbing a hoistway for a bank of elevators. Which lines are dropped first? a. The two outside main rails that are farthest apart b. The two inside main rails that are closest together c. Two main rails in each hoistway d. All main rails in the banks
a. The two outside main rails that are farthest apart
70. A selector moves 1/8" for every foot of car travel. In order to provide 4' of slowdown, how far from the floor bar should the selector switch be placed? a. 1/8" b. 1/2" c. 1" d. 4"
b. 1/2"
45. If an elevator moves seven floors with an average floor height of 9', how far does the carriage move on aselector with a 60 to 1 ratio? a. 10.5" b. 12.6" c. 1' 0.5" d. 1' 2.6"
b. 12.6"
124.In a three-phase motor, what is the phase relationship between phases A, B, and C? a. 180 degrees b. 120 degrees c. 90 degrees d. 60 degrees
b. 120 degrees
125.You need to replace a three-phase, 60 cycle AC motor which is missing the data plate that once showed RPMs. If you know the old motor had six poles, what is the approximate RPMs the replacement motor will be rated for? a. 900 b. 1200 c. 1800 d. 3600
b. 1200
87. You are making up a string of lights to illuminate the hoistway with 120VAC, 100 watt lamps. How many lamps can you have on the string without tripping a 15 amp breaker? a. 15 b. 18 c. 19 d. 20
b. 18
111. After installing new car doors, you must adjust the gate switch. Based on ASME Code, how far from being fully closed should the gate switch make up? a. 1" b. 2" c. 3" d. 4"
b. 2"
37. When pulling hatchway wiring, a 10% wire spare is desirable. If the wiring requires 12-#14AWG,36-#16 AWG, and 52 - #18 AWG, what is the best selection of spares? a. 1-#14 AWG, 4-#16 AWG, and 5-#18 AWG b. 2-#14 AWG, 4-#16 AWG, and 6-#18 AWG c. 2-#14 AWG, 3-#16 AWG, and 5-#18 AWG d. 2-#14 AWG, 3-#16 AWG, and 6-#18 AWG
b. 2-#14 AWG, 4-#16 AWG, and 6-#18 AWG
42. A gearless machine with a 32"drive sheave roped 2:1 is leveling an elevator at 10FPM. What is the motor armature RPM? a. 1.2 RPM b. 2.4 RPM c. 2RPM d. 24 RPM
b. 2.4 RPM
145.You are installing a drive sheave that will use 1/2" rope. What should be the minimum diameter of the drive sheave? a. 15" b. 20" c. 30" d. 40"
b. 20"
31. Since there are 231 cubic inches in a gallon, how many gallons are needed to fill a tank -which measures 4' long by 3' wide- to a depth of 30"? a. 30 gallons b. 225 gallons c. 270 gallons d. 360 gallons
b. 225 gallons
38. If a pump operating at 2000RPM moves an elevator at 100FPM, what RPM must the pump run to attain 150FPM? a. 3300 RPM b. 3000 RPM c. 2150 RPM d. 2050 RPM
b. 3000 RPM
34. An elevator is roped 2:1 with a capacity of 6000lbs. and a car speed of 250FPM. If the same elevator was roped 1:1, what would be the new capacity and speed? a. 3000 lbs., 250 FPM b. 3000 lbs., 500 FPM c. 6000 lbs., 250 FPM d. 6000 lbs., 500 FPM
b. 3000 lbs., 500 FPM
69. You plan to replace a stationary selector tape for a car top selector that runs from the top to the bottom of the hoistway. There are 20 standard rails and two 8' jumpers on each side of the hoistway. How long is the replacement tape? a. 672 ft. b. 336 ft. c. 316 ft. d. 168 ft.
b. 336 ft.
134.You are about to install the rails on a hydraulic elevator. If the layout calls for three complete rails per stack, how many fishplates are required to complete this job? a. 2 b. 4 c. 6 d. 9
b. 4
40. An elevator weighing 4200lbs. has a capacity of 3000lbs. How much counter weight is required to balance the carat 40% of the load? a. 7200 lbs. b. 5400 lbs. c. 2800 lbs. d. 1200 lbs
b. 5400 lbs.
53. You are performing an acceptance test on a traction elevator with a capacity of 3800lbs., and you need to load the car with 125%. How many 50 lb. test weights would be required? a. 76 b. 95 c. 950 d. 3800
b. 95
113.An opening is added between the two original openings of an existing freight elevator. The top panel of the new door will overlap the lower panel of the door on the floor above. What is required on the new door panel? a. A bar latch b. A fire lintel c. A sightguard d. A trucking sill
b. A fire lintel
110.If you are installing elevator car doors, where does the fast door of a two-speed horizontal sliding configuration travel? a. Only the slow door travels b. Across the full width of the opening c. Across half the width of the opening d. It depends on the manufacturer's specifications
b. Across the full width of the opening
118.On one of your controllers, you regularly have to replace a large AC relay coil because the coil burns out and blows fuses. Which of the following is the problem? a. Heavy contact arcing b. Armature is not seating c. Relay contact rating is too low d. Too much ripple in the power supply
b. Armature is not seating
85. After changing the brushes on the motor generator and hoist motor, the elevator develops a leveling problem. Which of the following is the likely cause? a. Generator series field shorted b. Brushes not seated properly c. Brush rigging out of neutral d. Loop circuit open
b. Brushes not seated properly
109.If you have installed a door operator assembly and are ready to hang the car doors, what must you install in order to prevent door damage? a. Door bumpers b. Car door gibs c. Sight guards d. Drive links
b. Car door gibs
12. You are preparing to drill a hole in a machine beam. What tool will you need to set the center of the hole to keep the drill tip from wandering off the mark? a. Drift punch b. Center punch c. Roll pin punch d. Starting punch
b. Center punch
126. When adjusting an elevator motor armature loop circuit, it is necessary to measure the current in the circuit. Which following is the best meter for the test? a. Digital volt-ohm meter b. Clamp on meter c. Analog meter d. Logic probe
b. Clamp on meter
67. Which of the following should the elevator constructor use to square the placement of an escalator in a wellway? a. Squaring formulas (i.e., Pythagorean Theorem) b. Column and center lines c. Wellway tangent lines d. Final layout
b. Column and center lines
9. In a building that exceeds 150 feet of travel, what is used to improve traction between the hoist ropes and machine driver? a. Overspeed switches b. Compensation ropes c. Automatic cable oilers d. Selector drive tension sheaves
b. Compensation ropes
129.After drilling a hole for a hydraulic elevator, which one of the following pieces of equipment is set in the hole first? a. Plunger b. Cylinder c. Stop ring d. Packing head
b. Cylinder
108.An elevator mechanic responds to a call where the doors keep jumping the track. What is the most likely cause of this situation? a. Door gibs binding b. Eccentric not adjusted c. Fire hook not adjusted d. Relating cable set too high
b. Eccentric not adjusted
93. You are installing the wiring between a controller and motor generator set that are 8' apart. Which of the following methods should be used? a. Properly laced wires with bonding jumper b. Flexible metallic conduit c. Electrometallic conduit d. Duct
b. Flexible metallic conduit
95. You observe a safe circuit monitored by an LED. The safe circuit is operating normally, but the LED is out. Your meter indicates 3 volts across the LED leads. What is the condition of the LED? a. Normal b. Opened c. Shorted d. Operational
b. Opened
64. You are working on an installation where specifications call for position indicators on more than one floor. How should you connect the additional indicators? a. Series b. Parallel c. Parallel-series d. Series-parallel
b. Parallel
92. On a hydraulic elevator, which of the following scientific principles could be used to explain,measure,and calculate the lifting capacity of the elevator? a. Ohm's Law b. Pascal's Law c. Newton's Law d. Kirchhoff's Law
b. Pascal's Law
4. When you are installing pit equipment,which two items are required by the ASMEA17.1 Code? a. Pit ladder and buffer switch b. Pit switch and light switch c. Sump pump and jack assembly d. Buffer and compensation chain
b. Pit switch and light switch
60. To complete the wiring of push buttons, you need to splice the common wire in the raceway to each button. What is required for these splices? a. They must be soldered b. They must be accessible c. They must be rubber taped, then plastic taped d. They must be plastic taped, then rubber taped
b. They must be accessible
94. A defective leveling unit takes a 1/2 second longer to operate than it should. At a leveling speed of 10FPM, where will the elevator initially stop? a. One inch past the floor b. Two inches past the floor c. One inch short of the floor d. Two inches short of the floor
b. Two inches past the floor
132.When replacing a hydraulic elevator packing, which of the following is the most critical part of the process? a. Polish the piston. b. Use support posts in the pit. c. Change the oil in the cylinder. d. Use plenty of rags and solvent.
b. Use support posts in the pit.
29. When would you expect to see safe ties on counter weights? a. When the pit is less than 5' deep b. When the space below is occupied c. When contract speed exceeds 500 FPM d. When the counterweights weigh over 5000 lbs.
b. When the space below is occupied
39. If hoist ropes slip 0.1%,how much slippage would be in a 120' run? a. 1 1/16" b. 1 1/8" c. 1 7/16" d. 1'-2"
c. 1 7/16"
97. You are trouble shooting a problem with a slow down in a door operator circuit. The circuits hows two parallel 30 ohm resistors in series with one 100 ohm resistor. What should your meter indicate when checking the resistance of this circuit? a. 160 ohms b. 130 ohms c. 115 ohms d. 15 ohms
c. 115 ohms
43. How many fish plate bolts are needed to install standard main rails with 124' of travel and a 5' pit? a. 64 bolts b. 112 bolts c. 128 bolts d. 156 bolts
c. 128 bolts
58. You need to install a vertical run of duct for a total distance of 95'. What is the minimum distance required between supports? a. 5' b. 10' c. 15' d. 20'
c. 15'
35. If you work 12 hours at a doubletime rate of $50.00 per hour, how many hours at time and a half would you need to work to earn the same amount of money? a. 24 b. 20 c. 18 d. 16
c. 18
24. When filing rail joints, what is the distance you must file above and below the rail joint? a. 6" b. 14" c. 18" d. 24"
c. 18"
30. What is the minimum speed at which the governor should trip on an elevator with a contract speed of 200FPM? a. 300 FPM b. 280 FPM c. 230 FPM d. 215 FPM
c. 230 FPM
135.On a new construction site, the contractor is concerned about the weight of the ten standard 15 lb. rails stacked on the floor. What is the total weight of the rails? a. 1200 lbs. b. 1500 lbs. c. 2400 lbs. d. 3400 lbs.
c. 2400 lbs.
44. An empty hydraulic elevator with a 6" diameter jack has a line pressure of 150 psi. What is the pressure if we add an additional 2800 pound load? a. 430 psi b. 280 psi c. 249 psi d. 150 psi
c. 249 psi
7. If a valve spring shown on a layout drawing is measured at 13/8", and the scale for the drawing is a 1 to 4 ratio, what is the actual size of the valve spring? a. 11/32" b. 4 1/8" c. 5 1/2" d. 14 2/3"
c. 5 1/2"
107.How should you determine if you need to order right or left hand door lock parts for a single-speed, horizontal sliding door? a. By viewing the travel of the relating device. b. By viewing the travel of the car door operator. c. By viewing the travel of the door from inside the car. d. By viewing the travel of the door from outside the car
c. By viewing the travel of the door from inside the car.
151.You find the main line circuit breaker to the elevator tripped. Which one of the following conditions would cause this problem? a. Circuit voltage drops below the circuit breaker's rated voltage. b. Circuit current drops below the circuit breakers rated voltage c. Current in the circuit exceeds the circuit breakers rated current d. Voltage in the circuit exceeds the circuit breaker's rated voltage.
c. Current in the circuit exceeds the circuit breakers rated current
114.When installing a pit level access door on a dumbwaiter, which of the following components must be installed? a. Directional limit b. Overload switch c. Electrical contact d. Bottom limit switch
c. Electrical contact
13. For a hydraulic elevator installation, which of the following items must be installed before any pit equipment can be set? a. Limit switches b. Door bucks c. Guide rails d. Door sills
c. Guide rails
27. While hoisting a motor generator, what should you use to stabilize the load to prevent it from spinning? a. Tag line b. Top line c. Hoisting jack d. Hoisting ring
c. Hoisting jack
137.Once you complete the installation of a governor in the machine room, which procedure(s) should you perform next? a. Ride the elevator to the pit, and set the safeties. b. Install hoist cables on the car and counterweight. c. Install the governing tension sheave and attach the governor cable. d. Ride the elevator to the center of the hatch and wire the half-way box
c. Install the governing tension sheave and attach the governor cable.
121.If a rectifier with a 220 VAC input periodically blows its 200 microfarad 300 VDC filter capacitor, what is the problem? a. Open rectifier diode b. Shorted rectifier diode c. Intermittent high output current d. Capacitor voltage rating too low
c. Intermittent high output current
88. During an installation, you need to determine where and what type of push buttons, position indicators,and car operating panels will be installed. Which of the following should be your best source of information? a. Electrical drawings b. Straight line diagrams c. Job abstract and final layout d. Machine room and pit detail drawings
c. Job abstract and final layout
89. In a wet location,you are piping hoistway terminal switches that may require adjustment in the future. What type of piping should be used? a. Rigid pipe with properly cut threads b. PVC approved for wet locations c. Liquid tight flexible conduit d. Flexible metal conduit
c. Liquid tight flexible conduit
119.What could cause a three-phase input DC control power supply to have an output that is about 30% low? a. Shorted rectifier b. High current load c. Loss of one phase d. Loss of two phases
c. Loss of one phase
136.You are replacing a badly rusted hydraulic elevator pipeline. What information is needed to order the replacement pipe? a. Pipe size and total rise b. Car capacity and speed c. Pipe size and maximum pressure d. Car capacity and maximum pressure
c. Pipe size and maximum pressure
20. When servicing the governor tension sheave, which switch should be used to prevent the elevator from operating? a. Buffer switch b. Access switch c. Pit stop switch d. Final stop switch
c. Pit stop switch
144.You are adjusting an entrance unit and find the distances are greater at the top of the opening than at the bottom. Which of the following tools is needed to correct this problem? a. Tape measure b. Straightedge c. Plumb line d. Level
c. Plumb line
147.Because the casing was installed incorrectly, you are unable to plumb the cylinder in the correct location. Given this situation, how should you finish the installation? a. Install a smaller jack assembly. b. Get the cylinder close and shift the guide rails. c. Plumb the cylinder and relocate the platen plate. d. Get the cylinder close and adjust the roller guides.
c. Plumb the cylinder and relocate the platen plate.
115. You find that the retiring cam strikes the roller correctly when the car is below the floor. But when the car is above the floor, the cam strikes the roller off center. What must be done to correct this problem? a. Realign the contact actuator. b. Reposition the unlocking roller. c. Replumb the retiring cam assembly. d. Replumb the interlock switch bracket.
c. Replumb the retiring cam assembly.
41. How is the resistance of a conductor affected if the length and cross-sectional area are both doubled? a. Resistance is doubled b. Resistance is halved c. Resistance is not changed d. Resistance is increased four times
c. Resistance is not changed
154.A mechanic installing a hydraulic elevator needs to assemble a three piece jack. Which of the following wrenches should be used? a. Pipe wrench b. Spud wrench c. Strap wrench d. Torque wrench
c. Strap wrench
106.You respond to a call on a Ward-Leonard variable voltage DC control car. You find that after a normal stop, the car is being driven through the brake. Which of the following circuits should be checked to investigate this problem? a. Load sensing b. Closed loop c. Suicide d. Damping
c. Suicide
153.After finding the main breaker tripped on Car 1, you observe that the wye and delta relays are picking up at the same time. What mechanical device should have prevented this from happening? a. Armature pivot pin b. Laminated core c. Walking beam d. Arc shields
c. Walking beam
75. You discover that a 110V DC, 0.3 amp relay was incorrectly hooked up to 48VDC. How much current would be in this circuit? a. 366.67 amps b. 36.67 amps c. 13.09 amps d. 0.1309 amps
d. 0.1309 amps
54. You have a light circuit which uses a 55 watt light bulb and is operated on 125VDC. How much current would you expect to use? a. 5.5 amps b. 0.55 amps c. 4.4 amps d. 0.44 amps
d. 0.44 amps
98. While trouble shooting a drive filter,you check the resistor network shown in Figure 21. Rather than measure each resistor individually, you decide to measure total resistance. What will your meter read? a. 400 ohms b. 100 ohms c. 50 ohms d. 25 ohms
d. 25 ohms
33. When you replace common hoist ropes which are 8x19 regular construction rope, what does the"8x19"mean? a. 8 strands with 19 pieces of core b. 8 strands with 19 lays c. 8 lead wires by 19 Warrington d. 8 strands with 19 wires per strand
d. 8 strands with 19 wires per strand
32. While performing an inspection on the safety devices under the elevator, you find that the safety rope must be changed. What type of rope should you use? a. Iron b. Steel c. Hemp d. Bronze
d. Bronze
146.After completing the cutting and threading of a hydraulic elevator oil line, what is the next step of the installation process? a. Coat the threads with pipe dope. b. Wash the threads with a solvent. c. Clean the outside of the pipe. d. Clean the inside of the pipe.
d. Clean the inside of the pipe.
6. You are installing a car hitch plate and need to determine the correct rope drop from the machine drive sheave. Which of the following would be the best method? a. Apply a level between the sheave and the rope hitch plate. b. Apply a torpedo level to the sheave face. c. Transfer a chalk line. d. Drop a plumb line.
d. Drop a plumb line.
5. You are working on scaffolding installing brackets. As you approach the end of the scaffold,the plank starts to slip. What should have been done to prevent this? a. Anchors should have been installed between the structure and the scaffolding. b. Planks should have been checked to ensure they overhang the braces by a minimum of 5". c. End hooks should have been installed before erecting the scaffolding. d. End cleats should have been nailed to the underside of the plank.
d. End cleats should have been nailed to the underside of the plank.
143.When positioning a ladder on a construction project to ascend and descend to a different level, which of the following criteria must the ladder meet? a. Remain 3' below the resting point b. Remain 5' below the resting point c. Extend 3' above the resting point d. Extend 5' above the resting point
d. Extend 5' above the resting point
62. You are piping and wiring limit switches in the hoistway. Which of the following must be used? a. Type SF cable b. Traveling cable c. Electrical metallic pipe d. Flexible metal conduit
d. Flexible metal conduit
66. Where should a mechanic obtain benchmarks to set an escalator truss? a. Job abstract b. Final layout c. ASME Code book d. General contractor
d. General contractor
150.One elevator in a group is experiencing intermittent shutdowns due to an oxidation on the 5th floor door interlock contacts. Which of the following will cause this condition? a. Poorly fitting interlock cover b. Too much contact pressure c. Misaligned hoistway door d. Insufficient contact wipe
d. Insufficient contact wipe
21. You find that an AC contactor chatters when it is energized. Which of the following would cause this problem? a. High inrush current b. Broken return spring c. Residual magnetism d. Missing or broken shading coil
d. Missing or broken shading coil
84. Which of the following types of relays are usually found on a solid state board? a. Mechanical latching b. Contactor c. Tapped d. Reed
d. Reed
117.After replacing a three-lead, three-phase hydraulic pump motor, you realize that its rotation is backwards. What should you do to correct this? a. Reverse phase A & B at both the disconnect and the controller. b. Reverse phase A & C at both the disconnect and the motor. c. Replace phase A with a good neutral. d. Reverse any two motor leads.
d. Reverse any two motor leads.
148.While troubleshooting a faulty relay, a mechanic notices the spring under the armature is missing. How would this cause the relay to fail? a. The air gap would change. b. The armature would not pull in when energized. c. The normally closed contact would remain closed when the coil is energized. d. The armature may hang up due to residual magnetism when power is removed.
d. The armature may hang up due to residual magnetism when power is removed.
91. You are preparing to run a hydraulic elevator for the first time. Before doing this, what is the most important condition that must be observed? a. Oil line stands must be in place b. Rotation of motor must be positive c. Pit and machine room shut off valves should be open d. The plunger and jack head must be clear of debris, and the jack head must be tight
d. The plunger and jack head must be clear of debris, and the jack head must be tight
133.An elevator mechanic has responded to a trouble call on a hydraulic elevator. The mechanic notes that the pump runs, but the car won't move. Which of the following is causing the problem? a. Open down solenoid. b. Transition not properly adjusted. c. Up stop adjustment set too high. d. Up acceleration not adjusted properly.
d. Up acceleration not adjusted properly.
138.Using your multimeter, a transformer under test indicates an open secondary. The primary reads 40 ohms. With 120 VAC applied to this transformer, what is the primary current? a. Primary voltage multiplied by primary resistance. b. Primary resistance divided into primary voltage. c. Very high d. Very low
d. Very low