ELEVATOR MECHANIC REVIEW /023
CERTIFICATION SCRIPT 2026
QUESTIONS WITH SOLUTIONS
GRADED A+
◍ A waveform that has unequal rise and fall times with one being
instantaneous is called a (blank) wave..
Answer: Sawtooth
◍ Refer to figure 1. Which of the following statements is correct?.
Answer: Sine wave A is lagging sine wave B.
◍ Which of the following statements is correct regarding wye stator
connections?.
Answer: Ther is a neutral or common connection for all three phases
◍ If a two-speed AC motor having a ratio of 8:1 has a rated speed of 225 FPM,
what is the leveling speed?.
Answer: 28 FPM
◍ Why are even minor electrical shocks dangerous?.
Answer: The involuntary reflex to pull away
◍ Which safety device detects small imbalances between the hot and neutral
current carrying conductors?.
Answer: GFCI
◍ Which of the following is a correct statement about magnetic poles?.
Answer: Like poles repel
◍ Refer to figure 2. If current is flowing continuously from left to right
through the conductor, which of the following statements is correct?.
, Answer: The magnetic lines of force will be in the counter clockwise
direction
◍ Which device can be used to measure current in a circuit without
disconnecting any wiring?.
Answer: Clamp-on Meter
◍ The moveable portion of a relay is referred to as the (blank)..
Answer: Armature
◍ The difference of electrical potential between two points is called (blank).
Answer: Voltage
◍ A wire-wound resistor in a series circuit with a supply voltage of 45 VDC
has a nominal value of 64 ohms. It develops a problem, which results in it
being 40% partially shorted. The circuit fuse is rated at 1 amp. Which of the
following statements is correct?.
Answer: This represents a shorted condition that will not open the fuse
◍ Which of the following is equivalent to 35 micro amps?.
Answer: .000035 amperes
◍ The period of a sine wave is .0083 seconds. What is the frequency?.
Answer: 120 Hz
◍ With an effective value of 20.2 amps of AC current, what is the peak value?.
Answer: 28.6 amps
◍ You are putting up a stringer of lights in a hoistway with lights spaced at 6
foot intervals. If using 100 watt light bulbs, how many feet of the hoistway
can you cover before tripping the breaker on a 20A circuit?.
Answer: 24
◍ The symbol E is used to represent which of the following in electricity?.
Answer: Voltage
◍ Two negative charges placed next to each other will ... (blank).
Answer: Repel each other
, ◍ One ampere equals (blank).
Answer: 1,000 mA
◍ Switches are generally rated by the maximum (blank) across the contacts
when the switch is open and the maximum (blank) through the switch when
it is closed..
Answer: Voltage, current
◍ What happens to the total resistance in a wire if it's length is doubled?.
Answer: The resistance is doubled
◍ What happens to the total resistance in a wire if it's cross-sectional area is
increased by four times?.
Answer: The resistance is one-fourth of what it was originally.
◍ In the circuit shown in figure 3, what is the voltage drop across the switch?.
Answer: 0 VDC, since there is no resistance in the switch.
◍ Solve the following -863 x -1224= (blank).
Answer: + 1,056,312
◍ Calculate the resistance in a circuit if the voltage is 24 VDC and 40 watts of
power are consumed..
Answer: 1.66 ohms
◍ What will happen to the current in a circuit of constant voltage if the
resistance is halved?.
Answer: The current will double
◍ How should ohmmeters be used to take measurements in a circuit?.
Answer: Connected in parallel across the load with one lead of the load to be
measured disconnected
◍ Refer to figure 4. What is the source voltage in this circuit if the total power
consumed in this circuit is 270 milliwatts?.
Answer: 25 volts
◍ Refer to figure 4. What is the current through R2?.
Answer: 2.8 mA
CERTIFICATION SCRIPT 2026
QUESTIONS WITH SOLUTIONS
GRADED A+
◍ A waveform that has unequal rise and fall times with one being
instantaneous is called a (blank) wave..
Answer: Sawtooth
◍ Refer to figure 1. Which of the following statements is correct?.
Answer: Sine wave A is lagging sine wave B.
◍ Which of the following statements is correct regarding wye stator
connections?.
Answer: Ther is a neutral or common connection for all three phases
◍ If a two-speed AC motor having a ratio of 8:1 has a rated speed of 225 FPM,
what is the leveling speed?.
Answer: 28 FPM
◍ Why are even minor electrical shocks dangerous?.
Answer: The involuntary reflex to pull away
◍ Which safety device detects small imbalances between the hot and neutral
current carrying conductors?.
Answer: GFCI
◍ Which of the following is a correct statement about magnetic poles?.
Answer: Like poles repel
◍ Refer to figure 2. If current is flowing continuously from left to right
through the conductor, which of the following statements is correct?.
, Answer: The magnetic lines of force will be in the counter clockwise
direction
◍ Which device can be used to measure current in a circuit without
disconnecting any wiring?.
Answer: Clamp-on Meter
◍ The moveable portion of a relay is referred to as the (blank)..
Answer: Armature
◍ The difference of electrical potential between two points is called (blank).
Answer: Voltage
◍ A wire-wound resistor in a series circuit with a supply voltage of 45 VDC
has a nominal value of 64 ohms. It develops a problem, which results in it
being 40% partially shorted. The circuit fuse is rated at 1 amp. Which of the
following statements is correct?.
Answer: This represents a shorted condition that will not open the fuse
◍ Which of the following is equivalent to 35 micro amps?.
Answer: .000035 amperes
◍ The period of a sine wave is .0083 seconds. What is the frequency?.
Answer: 120 Hz
◍ With an effective value of 20.2 amps of AC current, what is the peak value?.
Answer: 28.6 amps
◍ You are putting up a stringer of lights in a hoistway with lights spaced at 6
foot intervals. If using 100 watt light bulbs, how many feet of the hoistway
can you cover before tripping the breaker on a 20A circuit?.
Answer: 24
◍ The symbol E is used to represent which of the following in electricity?.
Answer: Voltage
◍ Two negative charges placed next to each other will ... (blank).
Answer: Repel each other
, ◍ One ampere equals (blank).
Answer: 1,000 mA
◍ Switches are generally rated by the maximum (blank) across the contacts
when the switch is open and the maximum (blank) through the switch when
it is closed..
Answer: Voltage, current
◍ What happens to the total resistance in a wire if it's length is doubled?.
Answer: The resistance is doubled
◍ What happens to the total resistance in a wire if it's cross-sectional area is
increased by four times?.
Answer: The resistance is one-fourth of what it was originally.
◍ In the circuit shown in figure 3, what is the voltage drop across the switch?.
Answer: 0 VDC, since there is no resistance in the switch.
◍ Solve the following -863 x -1224= (blank).
Answer: + 1,056,312
◍ Calculate the resistance in a circuit if the voltage is 24 VDC and 40 watts of
power are consumed..
Answer: 1.66 ohms
◍ What will happen to the current in a circuit of constant voltage if the
resistance is halved?.
Answer: The current will double
◍ How should ohmmeters be used to take measurements in a circuit?.
Answer: Connected in parallel across the load with one lead of the load to be
measured disconnected
◍ Refer to figure 4. What is the source voltage in this circuit if the total power
consumed in this circuit is 270 milliwatts?.
Answer: 25 volts
◍ Refer to figure 4. What is the current through R2?.
Answer: 2.8 mA
