Section 4 URE

Question 1

What component on the filter separator prevents pressure surges from damaging dispensing pressure control systems?

Answer 1

Air eliminator

Question 2

What type of meter is used on most fuel dispensing systems

Answer 2

No-rotor positive displacement

Question 3

What type of lubricant is used to lubricate the PTO on a fuel dispensing system?

Answer 3

Ninety-weight gear oil

Question 4

What component found on R-11 and R-12 prevents the auxiliary throttle from operating unless the PTO is engaged?

Answer 4

Throttle interlock system

Question 5

During bottom loading operations what should occur when the signal to the bottom loading optic probe is lost?

Answer 5

The electronic control module cuts power to the bottom loading electronic air solenoid

Question 6

What is the lifting force of a liquid called

Answer 6

Buoyancy

Question 7

Which of the following would indicate velocity of flow?

Answer 7

Feet per second

Question 8

Fuel systems are designed so that normal operating fuel flow will not exceed what?

Answer 8

12 feet per second

Question 9

A complete cycle of pressure waves and reversals of flow during hydraulic shock occupies the time required for

Answer 9

Two round trips

Question 10

The intensity if the excess pressure in a water-hammer wave depends on the

Answer 10

Amount of extinguished velocity

Question 11

Which of the following types of measurements may be used to express pressure?

Answer 11

Pounds per square inch

Question 12

The standard measure for atmospheric pressure is equal to how many psi?

Answer 12

14.7

Question 13

What term is used to describe the total pressure acting as a gas?

Answer 13

Absolute pressure

Question 14

How do the charges of protons and electrons differ?

Answer 14

Protons have positive charge, electrons have negative charges

Question 15

The uniform movement of electrons in a specific direction is called

Answer 15

Electric current

Question 16

The shell of the valence electrons that determines whether a material is a good or poor conductor is the

Answer 16

Outer most shell

Question 17

A positive ion is an atom that

Answer 17

Lost an electron and has more protons

Question 18

What is the unit for electrical power?

Answer 18

Watts

Question 19

A 3 horsepower engine consumes how many watts of power?

Answer 19

2238 W

Question 20

What items are required to construct an electromagnet?

Answer 20

Coil of wire, core material, current flow.

Question 21

What are the two most common methods of producing voltage?

Answer 21

Chemical and mechanical

Question 22

What types of current flow cannot be transformed from a higher voltage to a lower voltage?

Answer 22

Direct Current

Question 23

What are the three things needed to produce voltage by the principle of electromagnetic induction?

Answer 23

Magnetic field, conductor, and relative motion

Question 24

Which of the following is not a type of positive displacement pump?

Answer 24

Centrifugal