Chapter 11

Question 1

It is a means of connecting pipe ends to ensure that two pipes can be joined together and install a pipeline of any length.

Answer 1

PIPE JOINT

Question 2

On joints and connections of pipes and fittings in the plumbing system shall be required to ensure gastight and watertight connections.

Answer 2

PRESSURE TEST

Question 3

Types of Joints

Answer 3

CAULKED JOINT
THREADED JOINT
WIPED JOINT
SOLDERED AND SWEAT JOINT
FLARED JOINTS
CEMENT MORTAR JOINTS
BURNED LEAD JOINTS
ASBESTOS CEMENT SEWER PIPE JOINT
SOLVENT CEMENT PLASTIC PIPE JOINTS
MOLDED RUBBER COUPLING JOINTS
BRAZED JOINT

Question 4

A joint in which suitable material is neither poured or compressed by the use of tools into the annular space between a bell or hub.

Answer 4

CAULKED JOINT

Question 5

A type of joint where pipes are connected by screwing with the help of _____ provided for each pipe.

Answer 5

THREADED JOINT

Question 6

Soldering process involves mechanically working or wiping the joint.

Answer 6

WIPED JOINTS

Question 7

Soldering a pipe joint or sweating a pipe is accomplished by heating a copper fitting with a propane torch until the fitting is just not enough to melt metal solder.

Answer 7

SOLDERED AND SWEAT JOINT

Question 8

An alternative solder-type joint that are mechanically separable and doesn’t require an open flame.

Answer 8

FLARED JOINTS

Question 9

Made of Cement base material such as portland cement or mortar mix, and are most commonly used in plumbing applications.

Except for repairs and connections.

Answer 9

CEMENT MORTAR JOINTS

Question 10

Type of joint for lead piping which shall be lapped and the assembly be fused together to form a uniform weld as thick as the lead.

Answer 10

BURNED LEAD JOINTS

Question 11

Shall be sleeve coupling of the same composition as the pipe or of other approved materials.

Answer 11

ASBESTOS CEMENT SEWER PIPE JOINT

Question 12

Common jointing method for plastic pipe and fittings systems.

Answer 12

SOLVENT CEMENT PLASTIC PIPE JOINTS

Question 13

Rubber expansion joints are made to safely absorb vibrations, like those caused by pipes expanding and contracting because of temperature.

Answer 13

MOLDED RUBBER COUPLING JOUNTS

Question 14

It is important to note the melting point of the parent material should be higher than the filler material to avoid melting the parent metal.

Another Q.

Work pieces are heated but below their melting point.

Answer 14

BRAZED JOINT
BRAZING

Question 15

Types of Brazing

Answer 15

TORCH BRAZING
INDUCTION BRAZING
FURNACE BRAZING
RESISTANCE BRAZING

Question 16

it uses a handheld gas torch to heat the base material, once heated enough, the filler material is introduced into the joint allowing it to melt.

Answer 16

TORCH BRAZING

Question 17

It is similar to torch brazing; however, it uses induction heating.

Answer 17

INDUCTION BRAZING

Question 18

It is used mostly in industrial manufacturing plants where filler material is placed across the metal at the desired joint.

Answer 18

FURNACE BRAZING

Question 19

It joins to metals using a low temperature interface metal called “brazing alloy”.

Answer 19

RESISTANCE BRAZING

Question 20

Welding - to join pieces need to be heated till their melting point.

Answer 20

WELDED JOINT

Question 21

Types of Welded joints

Answer 21

BUTT WELDED JOINT
SOCKET WELDED JOINT
PRESSURE-LOCK TYPE CONNECTION
SHIELDED COUPLING JOINTS

Question 22

Any fitting or connection which has an enlargement, chamber or recess with a ledge, shoulder or reduction of pipe area, that offers an obstruction to flow through the drain is prohibited.

Answer 22

DRAINAGE SYSTEM