Question

QUESTION 1

Wastewater discharge rates of plumbing fixtures are based on 1 dfu being equal to ____gallons of water per minute of waste discharge.

2.5

3.5

4.5

7.5

1 points   

QUESTION 2

Which of the following components increases (boosts) the pressure in a plumbing system?

Fitting

Valve

Pump

Pipe

1 points   

QUESTION 3

Of the following piping and fitting materials, which one is typically joined by soldering?

Galvanized steel

PEX plastic

Copper

Cast iron

1 points   

QUESTION 4

The effect of one coil inducing a voltage into another coil in a transformer is known as what?

Mutual Inductance

Thermo Coupling

Magnetic Transfer

Electromagnetic Exchange

1 points   

QUESTION 5

A plumbing fixture used to ensure that grease, sand/dirt and oils are removed from the sanitary waste building drain line discharge is?

Sewage Ejector Pump

Interceptor

Floor Drain

Mop Sink

1 points   

QUESTION 6

A chiller is a mechanical device used for producing:

Hot water

Cold Air

cold water

Hot air only

1 points   

QUESTION 7

What sprinkler system would be used in a Boston warehouse that is not heated?

Wet-pipe system

Pre-action system

Deluge system

Dry-pipe system

1 points   

QUESTION 8

in order to provide a delay between a signal from a detector and actual sprinkler discharge, the following system would likely be used.

a.

Deluge System

b.

Wet Sprinkler System

c.

Pre Action System

d.

Standpipe system

1 points   

QUESTION 9

In an HVAC control system , "offset" is the difference between the set point and the :

a.

Outside setting

b.

Control Point

c.

Sensor Point

d.

None of the above

1 points   

QUESTION 10

On an HVAC ductwork Plan Drawing, the number (usually in a box) next to a supply or return diffuser indicates:

Supply/ return diffuser air flow maximum capacity

Engineers design CFM value for that diffuser

Size of the diffuser in square inches

None of the above

1 points

Answer 1

1. 7.5

2. Pump (This boosts the pressure by converting electrical energy into mechanical energy.)

3. Copper (Copper pipe, or 'tube', is commonly joined by soldering. When applied in a plumbing trade context in the United States, soldering is often referred to as sweating, and a tubing connection so made is referred to as a sweated joint , Reference: Wikipedia)

4.Mutual Inductance.

5. Sewage Ejector Pump

6. Cold Air

7. Dry Pipe System (Dry pipe systems are most often used in unheated buildings)

8. Pre Action System ( This is a hybrid of Dry pipe system and wet pipe systems. Since dry pipe systems which can be operated with timedelay are involved in this kind of system, this kind of system provide time delay.)

9. Control Point (Offset is the Difference between the measured controlled variable and the setpoint)

10. Supply/ return diffuser air flow maximum capacity.