Meg Drives ;]

petah

A mechanical power transmission system receives power from what?

Prime Mover or Driver

A machine foundation should be designed to support the load of the machine, maintain the alignment of coupled components, and what?

Absorb vibration

Should you wear gloves while working on moving machinery?

No

A device most often used to orient a surface so it is either parallel or perpendicular to the ground is a what?

Spirit Level

A spirit level can be used in what positions?

Vertical and horizontal

The three types of shaft-to-adjacent-shaft power transmission are what?

Belt, chain, gear

The purpose of having a CLUTCH connecting two shafts together is to do what?

Allow the shafts to be DISCONNECTED when running

What are the 3 qualities of grease?

HARDNESS level

DROPPING point

Type of SOAP

What is a machine foundation?

The STRUCTURE that SUPPORTS a machine

What should be used to determine where to oil and grease a machine? 

The machine’s manual

What is oil viscosity?

Resistance to flow

What characteristic of lubricants is the most important to machine lubrication?

Viscosity

Which part of the grease gun is attached to the fitting of a bearing housing?

Coupler

When lubricating an unsealed pillow block bearing, the user attaches the coupler into the grease fitting and slowly pumps the handle of the grease gun until…

OLD grease flows out

The six fastener features include: Diameter, Grade, Thread type, Washer thickness, Nut Thickness/grade and what?

Length

What is a special type of nut that helps to hold tension on the fastener?

Nylon Nut

How is bolt grade indicated?

Raised marks on bolt head

Before a dial indicator can be used it must be…

Mastered

A soft foot condition on a motor mount should be corrected by shimming how many feet?

One

What is the axial displacement of the shaft as it rotates?

Run Out

An adjustable motor base is used when you need to…

Change tension

Which combination of fasteners would most commonly be used to attach a motor to a bedplate? (bolts washers nuts)

1 bolt

2 flat washers

1 lock washer

1 nut

Correcting soft foot is a _____________ step process. 

Two

Failing to correct a soft-foot condition can cause what problem when the motor is put into service?

Vibration

The groove in a shaft for a key is called a what?

Keyseat

The nominal height of a key is the height of the keystock without accounting for what?

Tolerance

The best instrument to use when measuring the inside WIDTH of a keyseat or the DEPTH of the keyseat is a

Dial Caliper

What kind of set screws are used for PERMANENT mounting of components on shafts?

Cone Point

The best way to remove a hub from a shaft is to use what?

Bearing Puller

Which of the following is NOT used by suppliers to specify keys and keyseats?

-Length

-Nominal width and height

-Material type

-Length/height tolerance

Length/height tolerance

Where is the keySEAT located?

Shaft

Where is the keyWAY located?

Hub

How does the nominal height of a key compare to the nominal depth of a keyseat or keyway?

The key is 2x the height of the keyseat/keyway depth

How can the load capacity of a roller bearing be increased?

Add more rollers

What does this micrometer read?

0.150

What does this dial caliper read?

5.621

Two common methods used to LOAD a mechanical drive system are using a dynamometer or a what?

Prony Brake

As the torque on an electric motor increases, what happens to the current?

Current increases

Mechanical Power Efficiency is defined as the ratio of…

Power out to power in

What are the three classifications of levers?

1, 2, 3

Comparing power out to power in will give you what?

Mechanical Power Efficiency

Mechanical advantage is the ratio between the effort side and the what?

Resistance side

In order to calculate mechanical power (HP), what two variables need to be known?

Torque and speed

What is a Prony brake used to apply to a motor?

Load

What is the mechanical power EFFICCIENCY formula?

(Output power/Input power) * 100

What is the mechanical ADVANTAGE formula?

Effort distance/Resistance distance

Torque is measured in what 2 things?

Footpounds and newton meters

What part of a lever is the point on which the beam pivots?

Fulcrum

The function of a machine shaft is to do what?

Transmit mechanical power

The coupling provides a secure method of transmitting what 2 things from one shaft to another?

Torque and speed

The purpose of shaft-to-adjacent-shaft mechanical power transmission is to do what?

-Change rotation direction

-Change amount of torque

-Change speed

-All of the above

All of the above

The two main types of misalignment corrected by shaft alignment are what?

Angular and parallel

What does MTBM stand for?

Machine to be moved

What is the recommended beginning height difference between two shafts, in INCHES?

.010-.015

Which shaft alignment check accounts for thermal expansion?

Coupling Gap

What type of misalignment is this?

Vertical Angular

Which type of coupling is made up of two jaws and a spider?

Flexible Jaw Coupling

What is the preferred method for installing a bearing?

Arbor Press

If lacking the preferred tools to install a bearing, what method can be used as a last resort?

Sleeve and Hammer

What is often used on a machine that has multiple lubrication points?

Automatic Lubricator

If a pulley system has a driver pulley with a pitch diameter of 16 and a driven pulley with a pitch diameter of 4, the driven shaft speed will _________ and the torque will __________.

Increase, decrease (Driven speed goes up and torque goes down since it is smaller than the driver)

On a V-belt the MAJORITY of speed and torque are transferred at the what?

Pitch Circle

What is inversely proportional to torque?

Speed

If the pitch diameter of the driver pulley is 4”, while the pitch diameter of the driven pulley is 12”. What is the pulley ratio?

3:1 (Driven/Driver)

A belt is a continuous loop of material stretched between two _____________ or pulleys.

Sheaves

What is used to create the ratio in a V-Belt Drive system?

Pitch Diameter

In a belt drive system, as the pulley ratio increases, shaft speed on the driven pulley will ___________ and the shaft torque will ____________.

Decrease, increase

What belts have teeth that match with grooves on the pulley and maintain grip with the pulley?

Timing Belts

Fractional Horsepower belts are used for applications operating at…

Less than 7.5 HP (Light Duty Applications)

Wedge belts are used for applications operating at…

Up to 500HP

The V-belt should ride _________ in the groove.

High

What is this misalignment?

Vertical Angular

What is this misalignment?

Parallel

What is this misalignment?

Horizontal Angular

When using a tension tester, ____________ of the belt span is used to calculate the distance of travel. 

1/64

What is the distance between the points on the sheaves where the belt contacts each sheave?

Belt Span

What belt cannot be properly tensioned using the most basic method of tensioning?

Wedge

When aligning sheaves using the straight edge method, the faces are aligned when ______ corners are in contact with the straight edge. 

4

How soon after setting the initial belt tension should it be checked again?

24 Hours

A class #1 fit is a ___________ fit.

Snug

Why is it important to inspect the sheaves/pulleys on a belt drive system before installing the belt?

To make sure they do not cause damage

Compared to the FHP V-belt drive, the conventional V-belt drive has…

Higher strength

Sprocket ratio is defined as what?

Driven teeth over driver teeth

In a chain drive system, which sprocket will have the largest amount of torque?

The larger one

The more teeth, the ___________ the sprocket.

Bigger

A sprocket with less teeth will have __________ torque and __________ speed when compared to a sprocket with more teeth. 

Lower, higher

Chordal action is negated after _______  teeth on a sprocket.

25

What part is #5?

Rollers

What part is #4?

Bushing

What part is #2?

Side Plate

What is this misalignment?

Angular

What is this misalignment?

Sprocket

When using a master link, where should the open end of the clip face?

OPPOSITE the direction of travel

What does a chain break tool do?

Removes a pin from the roller chain

Compared to a V-belt drive, a chain drive is…

More efficient

Multiple strand chains are used to…

Transmit a great deal of power

The most common type of chain used for mechanical drive is a what?

Roller Chain

What chain is this?

Leaf Chain

What chain is this?

Roller Chain

What chain is this?

Silent Chain