ATT TEST 10 EXAM LATEST 2024 ACTUAL EXAM 200
QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) |ALREADY GRADED A
One horsepower is the power rate corresponding to _______ -
ANSWER--33,000 ft·lb/min.
What are the two basic components of a motor? - ANSWER--Poles and
armature
What is motor efficiency? - ANSWER--Ratio of output power to input
power.
If a motor is supplied 2500 watts of electrical energy, how much
horsepower would it supply? - ANSWER--3.35 hp
Mechanical power is defined in terms of _______ - ANSWER--
horsepower.
Inefficiency means the _______ - ANSWER--input is much greater than
output.
100% efficiency means the _______ - ANSWER--input power equals
output power.
When is torque maximum? - ANSWER--Locked condition
, ATT TEST 10 EXAM LATEST 2024 ACTUAL EXAM 200
QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) |ALREADY GRADED A
Efficiency is measured as a _______ - ANSWER--percent.
Electrical power is defined in terms of _______ - ANSWER--watts.
CEMF and speed are _______ - ANSWER--proportional.
If a motor is producing 1.5 hp, how much electrical power is it
absorbing? (Assume no internal losses.) - ANSWER--1119 W
What does CEMF stand for? - ANSWER--Counter Electromotive Force
As CEMF increases, what happens to conductor speed and torque? -
ANSWER--Speed increases, torque decreases
1 horsepower equals how many watts? - ANSWER--746
What is the efficiency rating of a theoretically "perfect" rotating
machine? - ANSWER--100%
What is the rate of acceleration? - ANSWER--4 ft/s/s
, ATT TEST 10 EXAM LATEST 2024 ACTUAL EXAM 200
QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) |ALREADY GRADED A
How is acceleration or deceleration symbolized? - ANSWER--a
What is acceleration? - ANSWER--A change in velocity
What is the velocity at point B? - ANSWER--4 ft/s
Runout rate (ROR) is expressed in terms such as _______ - ANSWER--
feet/second.
The differentiator provides an output _______ - ANSWER--during
acceleration and deceleration.
When velocity and distance traveled are plotted, what would the graph
look like for a fixed velocity over time? - ANSWER--Straight line
increasing over time
What is the relationship between distance and time when solving for
velocity (V)? - ANSWER--ΔD/ΔT
If the sensor holes were moved closer to the center of the disk but the
same number of holes were used, at a given rpm, _______ - ANSWER--
D is decreased so V would decrease.
QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) |ALREADY GRADED A
One horsepower is the power rate corresponding to _______ -
ANSWER--33,000 ft·lb/min.
What are the two basic components of a motor? - ANSWER--Poles and
armature
What is motor efficiency? - ANSWER--Ratio of output power to input
power.
If a motor is supplied 2500 watts of electrical energy, how much
horsepower would it supply? - ANSWER--3.35 hp
Mechanical power is defined in terms of _______ - ANSWER--
horsepower.
Inefficiency means the _______ - ANSWER--input is much greater than
output.
100% efficiency means the _______ - ANSWER--input power equals
output power.
When is torque maximum? - ANSWER--Locked condition
, ATT TEST 10 EXAM LATEST 2024 ACTUAL EXAM 200
QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) |ALREADY GRADED A
Efficiency is measured as a _______ - ANSWER--percent.
Electrical power is defined in terms of _______ - ANSWER--watts.
CEMF and speed are _______ - ANSWER--proportional.
If a motor is producing 1.5 hp, how much electrical power is it
absorbing? (Assume no internal losses.) - ANSWER--1119 W
What does CEMF stand for? - ANSWER--Counter Electromotive Force
As CEMF increases, what happens to conductor speed and torque? -
ANSWER--Speed increases, torque decreases
1 horsepower equals how many watts? - ANSWER--746
What is the efficiency rating of a theoretically "perfect" rotating
machine? - ANSWER--100%
What is the rate of acceleration? - ANSWER--4 ft/s/s
, ATT TEST 10 EXAM LATEST 2024 ACTUAL EXAM 200
QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) |ALREADY GRADED A
How is acceleration or deceleration symbolized? - ANSWER--a
What is acceleration? - ANSWER--A change in velocity
What is the velocity at point B? - ANSWER--4 ft/s
Runout rate (ROR) is expressed in terms such as _______ - ANSWER--
feet/second.
The differentiator provides an output _______ - ANSWER--during
acceleration and deceleration.
When velocity and distance traveled are plotted, what would the graph
look like for a fixed velocity over time? - ANSWER--Straight line
increasing over time
What is the relationship between distance and time when solving for
velocity (V)? - ANSWER--ΔD/ΔT
If the sensor holes were moved closer to the center of the disk but the
same number of holes were used, at a given rpm, _______ - ANSWER--
D is decreased so V would decrease.
