MSSC Maintenance - FInal Practice

The measure of energy consumed by a circuit is called __________.

• Power

• Voltage

• Current

• Joule

Which of the following is an advantage of a circuit breaker over a fuse?

• Cheaper

• Easier to replace

• Disposable

• Can be reset

A circuit breaker connected to the powerline feeding a motor keeps tripping even after the motor is disconnected. What is the most likely issue?

• Motor is overloading

• Circuit breaker is defective

• Ground incorrectly wired

• Wrong voltage

__________ are used to remove undissolved contaminates in hydraulic fluid.

• Magnets

• Filters

• Baffles

• Strainers

A sight glass is used to do what?

• Inspect hydraulic fluid for dirt/debris

• Inspect metal for microfractures

• Inspect solders and welds

• Other

The dirt amount collected by a filter when pressure reaches a predetermined point is called the

• Back pressure limit

• Dirt Holding Capacity

• Filter limit

• Hydraulic pressure limit

In the United States, oil viscosity is measured in __________.

• Saybolt Universal Seconds

• gallons per hour

• liters per millisecond

• Viscounts

In machine automation, Which of the following is not a component of a relay?

• coil

• contacts

• valve

• spring

A belt drive having a 12 inch driver pulley and a 6 inch driven pulley has a pulley ratio of _.

• 2

• 1

• 12

• 0.5

A sheave gauge is used to do what?

• Is used to create sheave groove wear.

• Is used to stop sheave groove wear.

• Is used to check for sheave groove wear.

• Test for sheave alignment