PMMI REVIEW - Introduction to Mechanical Drives and Safety

What is one function of a mechanical power transmission?

• To increase the speed of a motor

• To transmit power from one component to another

• To reduce the noise of machinery

• To cool down the engine

Which of the following is a method of rotary mechanical power transmission?

• Hydraulic pump

• Pneumatic cylinder

• V-belt

• Electric motor

What is an important aspect of safe dress when working with power transmission equipment?

• Wearing loose clothing

• Wearing jewelry

• Wearing tight-fitting clothing

• Wearing sandals

What is the purpose of the lockout/tagout system?

• To increase machine speed

• To prevent accidental machine startup

• To enhance machine aesthetics

• To reduce machine noise

What is one function of a foundation in mechanical systems?

• To support the weight of the machinery

• To increase the speed of the machinery

• To reduce the noise of the machinery

• To cool down the machinery

Which method is used to measure motor shaft speed?

• Thermometer

• Tachometer

• Barometer

• Hygrometer

Why is machine guarding important?

• To enhance the appearance of the machine

• To increase the speed of the machine

• To protect workers from moving parts

• To reduce the weight of the machine

What is the primary purpose of lubrication in mechanical systems?

• To increase the speed of the machinery

• To reduce friction and wear

• To enhance the appearance of the machinery

• To cool down the machinery

Which component is commonly used to change the direction of mechanical power transmission?

• Gear

• Bearing

• Shaft

• Coupling

What is the role of a bearing in mechanical systems?

• To transmit electrical power

• To support and reduce friction in moving parts

• To increase the temperature of the system

• To enhance the visual appeal of the machinery