YRC Mid-Term test

What is the smallest amount of current that can kill a person, How many amps are fatal?

• 100 milliamps

• 1 amp

• 10 amps

What will a meter display for an Insulator?

• O.L

• O.O

What will a meter display for an Conductor?

• O.L

• O.O

What is the proper runtime for a compressor? 

• 50% or less

• 70% or

• 60% or less

• 40% or less

What two letters are used in control valve sizing formulas to denote capacity index? 

• CV

• WOG

• 150

What are the three basic parts of an automatic closed control loop? 

• Controller

• Device

• Process

• Body

• Seat

What weight and type of oil should always be used in a control air compressor? 

• SAE 20-30

• W10-30

• Synthetic W10-40

• W5-20

What pressure drop should be used in the formula for sizing a heating water control valve if the pressure drop is not specified? 

• 5 PSI

• 10 PSI

• 15 PSI

Static electricity is produced by: 

• Friction

• Lighting

• An Arc discharge

What problem will reverse flow in a control valve cause?

• Water hammer

• Nothing

• Poor flow