How to Read a Micrometer Scale?

1 Answers
AvaMarie
07/30/25 1:57am
Reading steps for a micrometer are as follows: Read the scale on the fixed sleeve corresponding to the left end face line of the movable sleeve; Align one of the scale lines on the movable sleeve with the zero reference line on the fixed sleeve and read the scale; Add the readings of the above two scales. Below is a detailed introduction to micrometers: Brief Description: A micrometer, also known as a screw gauge, screw micrometer, or micrometer caliper, is a more precise tool for measuring length compared to a vernier caliper. It can measure lengths accurately up to 0.01mm, with a measurement range of several centimeters. Classification of Micrometers: Micrometers can be divided into mechanical micrometers, electronic micrometers, vernier reading outside micrometers, small head outside micrometers, pointed head outside micrometers, wall thickness micrometers, sheet thickness micrometers, and micrometers with a micro head to be measured, among others.
Was this review help?
20
4
Share
More Forum Discussions

What are the pros and cons of the BYD Song Plus DM-i?

Here are the pros and cons of the BYD Song Plus DM-i as follows: (1) Pros: 1. The acceleration is very linear with good speed increase, and no sense of jerkiness is felt; 2. The seats are relatively soft with good comfort; 3. The overall interior feels decent and doesn’t appear cheap; 4. The rear seating space is very large with a completely flat floor; 5. Comes with built-in car karaoke and external discharge functions; 6. Front double-layer glass provides excellent noise insulation, and the engine is completely silent. (2) Cons: 1. The chassis suspension tuning is average, which might be the reason for the recently widespread online reports of rear seat resonance; 2. The rear noise insulation is much worse compared to the front, mainly in terms of wind noise and tire noise, possibly related to the use of Giti tires; 3. The trunk space is not large enough, which is not friendly for friends who frequently go on road trips; 4. No spare tire; 5. The price is relatively high.
11
0
Share

How to Reset the Oil Life on a 2019 Buick Excelle?

2019 Buick Excelle oil life reset method: 1. Turn the ignition switch to the ON position; 2. Press the Menu button on the turn signal switch; 3. Enter the vehicle information system and use the adjustment wheel and selector lever menu; 4. Access the Oil Life System in the menu; 5. Press the SET/CLR button on the turn signal switch while simultaneously depressing the brake pedal to complete the reset. The 2019 Buick Excelle is the fourth model produced by Buick on the General Motors global platform, following the new Regal, new LaCrosse, and Enclave. It embodies Buick's 'dynamic and fluid' design language, drawing inspiration from the classic elements of the Riviera concept car. It features a new wing-shaped chrome grille, wing-shaped LED automatic sensing headlights, wing-shaped LED taillights, dual-sweep body character lines, large-view exterior rearview mirrors, and 16-inch dual five-spoke luxury two-tone aluminum alloy wheels.
14
0
Share

What engine does the BMW M140i use?

The BMW M140i is equipped with a 3.0-liter inline 6-cylinder turbocharged engine, with the following details: 1. The 3.0 refers to the engine displacement of 3.0 liters, and 'inline' indicates the cylinder arrangement. 2. The 6-cylinder designation means the engine has a total of six cylinders, and 'turbocharged' denotes the type of engine. Below is additional information about the BMW M140i: 1. The BMW M140i model maintains a design consistency with the M135i in terms of exterior and interior styling, featuring M performance kits and more sporty alloy wheels. The interior boasts an all-black finish with silver accents, exuding a strong mechanical feel. 2. In terms of performance, the BMW M140i is powered by a 3.0T turbocharged engine, delivering a maximum power output of 250 kW and a peak torque of 500 Nm. It is paired with either a 6-speed manual or an 8-speed automatic transmission.
15
3
Share

What are the differences between the Mercedes-Benz A35 and A45?

The differences between the Mercedes-Benz A35 and A45 are: 1. Different body dimensions: The length, width, and height of the Mercedes-Benz A35 are 4637mm, 1796mm, and 1422mm respectively; the length, width, and height of the Mercedes-Benz A45 are 4367mm, 1780mm, and 1417mm respectively. 2. Different engines: The maximum power of the Mercedes-Benz A35's engine is 225kW; the maximum power of the Mercedes-Benz A45's engine is 285kW. The maximum power speed of the Mercedes-Benz A35's engine is 5800 revolutions per minute, and the maximum torque speed is 3000 to 4000 revolutions per minute. This engine is equipped with direct fuel injection technology, uses an aluminum alloy cylinder head and block, and is paired with a 7-speed dual-clutch transmission. The maximum power speed of the Mercedes-Benz A45's engine is 6500 revolutions per minute, and the maximum torque speed is 4750 to 5000 revolutions per minute. This engine is equipped with hybrid injection technology, uses an aluminum alloy cylinder head and block, and is paired with an 8-speed dual-clutch transmission.
15
4
Share

How many items are there in B2 Subject 3?

There are 16 items in the B2 driver's license Subject 3 test. The road test items for B2 license Subject 3 include: vehicle preparation, starting, driving straight, gear shifting operations, changing lanes, pulling over, going straight through intersections, turning left at intersections, turning right at intersections, passing pedestrian crossings, passing school zones, passing bus stops, meeting oncoming vehicles, overtaking, making U-turns, and nighttime driving. According to the appendix of the "Regulations on the Application and Use of Motor Vehicle Driver's Licenses": A B2 driver's license allows driving heavy and medium-duty trucks; heavy and medium-duty special-purpose vehicles. Other permitted vehicle types include: C1, C2, C3, C4, M. B2 Subject 3 precautions: Starting: Close the door, fasten the seat belt, turn on the left signal, shift to 2nd gear, honk three times, observe the left rearview mirror, slowly release the clutch while accelerating and release the parking brake to start, no rolling back; Going straight through intersections: Speed should not exceed 30 or be below 20, no crossing the yellow line; Bus stops: Speed should not exceed 30 or be below 20, no crossing the yellow line; Turning right at intersections: Turn on the left signal 3 seconds in advance, speed should not exceed 30 or be below 20, no crossing the line; Changing lanes: Turn on the left signal 3 seconds in advance, speed should not exceed 30 or be below 20, no crossing the boundary line; Overtaking: Turn on the left signal 3 seconds in advance, speed should not exceed 30 or be below 20, no crossing the boundary line; Turning left at intersections: Turn on the left signal 3 seconds in advance, speed should not exceed 30 or be below 20, no crossing the line; Passing school zones: Speed should not exceed 30 or be below 20, no crossing the line, no honking; Driving straight: Shift to 5th gear and accelerate when speed exceeds 40, speed should be above 40, no crossing the line; Accelerating: Shift to 5th gear and accelerate when speed exceeds 40, speed should be above 40, no crossing the line; Making U-turns: Choose a suitable section, turn on the right signal, move to the far right lane and stop, turn on the left signal, shift to 2nd gear, make a two-forward-one-reverse U-turn, no rolling back; Pulling over: Turn on the right signal for 3 seconds before pulling over, the right wheel should not be more than 30 cm from the roadside, apply the parking brake, shift to neutral. B2 Subject 3 scoring criteria: The following situations will result in immediate failure: Not using the seat belt as required; Blocking or turning off the in-vehicle audio and video monitoring equipment; Not following the examiner's instructions; Rolling back more than 30 cm when starting; Using a gear that does not match the speed for a long time, causing the engine to run too high or too low; Failing to shift gears twice in a row while driving; Coasting in neutral while driving; Not following traffic signals, signs, or markings; Not driving at the required speed; Driving over the solid center line or lane edge line; Driving over the lane divider for a long time (more than 15 seconds); Changing two or more lanes in succession; Parking in no-parking zones such as pedestrian crossings or grid lines; The candidate does not attend the exam at the scheduled time; The following situations will result in a 10-point deduction: Rolling back when starting, but less than 30 cm; Shifting to the wrong gear when starting or driving; Not using or incorrectly using the turn signal before starting, turning, changing lanes, overtaking, or parking; Turning the steering wheel less than 3 seconds after turning on the turn signal before starting, turning, changing lanes, overtaking, or parking; Stalling the engine once due to improper operation. Vehicle preparation: Not walking around the vehicle counterclockwise to check the vehicle's appearance and surroundings will result in failure. Starting with the following situations will result in immediate failure: Starting with insufficient brake pressure; Starting with the door not fully closed; Not shifting to neutral when starting the engine; Starting without releasing the parking brake and not correcting it in time; The following situations will result in a 10-point deduction: Starting without releasing the parking brake but correcting it in time; Not releasing the starter switch in time after the engine starts. Gear shifting operations: Not shifting gears smoothly as instructed will result in failure; Vehicle speed not matching the gear will result in a 10-point deduction. Pulling over: After parking, the vehicle body exceeding the right edge of the road or the pedestrian crossing will result in failure; Not closing the door after getting out will result in failure; After parking, the vehicle body being more than 30 cm from the right edge of the road or the sidewalk will result in a 10-point deduction; Not applying the parking brake after parking will result in a 10-point deduction; Releasing the foot brake before applying the parking brake will result in a 10-point deduction; Not turning off the engine before getting out will result in a 5-point deduction. Going straight through intersections, turning left at intersections, turning right at intersections: Not slowing down or stopping to look as required will result in failure. Passing pedestrian crossings, school zones, bus stops: Not slowing down as required will result in failure.
3
0
Share

What does BBA mean in the automotive industry?

In the automotive industry, BBA refers to the collective abbreviation of Mercedes-Benz, BMW, and Audi. BBA stands for the first letters of these three brands' English names: BMW, Benz, and Audi. The first 'B' represents BENZ (Mercedes-Benz), the second 'B' stands for BMW, and 'A' denotes AUDI. These three brands are renowned as the 'Three German Luxury Automakers' in the automotive world. Mercedes-Benz is a German automotive brand headquartered in Stuttgart, Germany, and is a member of the Daimler AG. Its product lineup includes various passenger cars and medium to large commercial vehicles. BMW, another German automotive brand, belongs to the BMW Group and offers models under the i, X, Z, and pure number series (1, 2, 3, etc.), along with the performance-oriented M series based on these models. Audi is an automotive brand under Audi AG, a subsidiary of the Volkswagen Group, and represents classic vehicle styles.
6
2
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.