General Exams (Plum Practical Db) - Free Online Reviewers

#41. A pipe vise is needed to?

A Retain melted lead in a joint

B Expands the ends of the lead pipe

C Straightened a tapered tap in a hole

D Keep pipe rigid for cutting

Answer: Keep pipe rigid for cutting

#42. In a certain plumbing installation, a lead pipe is being used. How do you usually join the lead pipe?

A Reaming the pipe ends

B Tapping the pipe ends

C Melting the pipe ends

D Threading the pipe ends

Answer: Melting the pipe ends

#43. What should be the maximum length of the ladder when fully extended of a an extension ladders?

A 70 feet

B 60 feet

C 40 feet

D 50 feet

Answer: 60 feet

#44. What will be the maximum water service pressure at the point where the building distribution system begins?

A 120 psi

B 90 psi

C 100 psi

D 80 psi

Answer: 80 psi

#45. What is usually the primary cause of troubles in excavating operations for water pipes?

A Inadequate drainage

B Underground utilities

C Lack of shoring

D Stagnant water

Answer: Lack of shoring

#46. What is the suitable gasket material for a flange union in oil lines?

A Rubber or asbestos sheet

B Rubber or asbestos composition

C Metallic or rubber composition

D Metallic

Answer: Metallic

#47. What is the suitable gasket material for flange union in cold water piping?

A Asbestos

B Metallic

C Leather

D Rubber

Answer: Rubber

#48. What is the suitable gasket material for flange union in gasoline conduction?

A Rubber or asbestos sheet

B Rubber or asbestos composition

C Metallic or rubber composition

D Metallic

Answer: Metallic

#49. What is the smallest plumbing fixture used as the basis in determining the fixture unit value?

A Kitchen sink

B Floor drain

C Lavatory or wash basin

D Water closet

Answer: Lavatory or wash basin

#50. As an experienced registered master plumber, what will be the ideal size of the P-trap that should be installed underground or embedded on a concrete slab?

A 250 mm

B 200 mm

C 100 mm

D 150 mm

Answer: 100 mm

#51. What condition must be satisfied for the water supply in building?

A fixtures should be vented to avoid siphonage or backflow

B the drainage pipe should be graded properly for downward gravity flow of water towards the discharge point

C Supply sufficient amount of water to each fixture and prevent backflow to avoid contamination

D fast removal of the waste with a minimum probability of leakage and stoppage of drain

Answer: fast removal of the waste with a minimum probability of leakage and stoppage of drain

#52. Each fixture in the plumbing system represents a certain demand for water, what is the water demand of the wall hydrant?

A 3 gp

B 5 gpm

C 8 gpm

D 9 gpm

Answer: 8 gpm

#53. Each fixture in the plumbing system represents a certain demand for water, what is the water demand of the bathtub faucet?

A 6 gpm

B 5 gpm

C 4 gpm

D 3 gpm

Answer: 4 gpm

#54. What is the water demand of a shower head?

A 6 gpm

B 4 gpm

C 8 gpm

D 5 gpm

Answer: 4 gpm

#55. What is the water demand of the sink faucet?

A 1 gpm

B 2 gpm

C 3 gpm

D 4 gpm

Answer: 3 gpm

#56. What is the name of that piece of pipe less than 12 inches in the length threaded on both sides?

A Short pipe

B Cut pipe

C Nipple

D Pipe

Answer: Nipple

#57. What do you call that short pipe whose thread at both ends meet?

A Long nipple

B Close nipple

C Short nipple

D Shoulder nipple

Answer: Close nipple

#58. What do you call that pipe whose thread at both ends leaves a small amount of space?

A Cut pipe

B Long pipe

C Stack

D Short pipe

Answer: Short pipe

#59. What is the minimum nominal diameter of a water service line pipe which will provide the building with water requirements during peak demands?

A ¼ inch

B ½ inch

C ¾ inch

D 1/3 inch

Answer: ¾ inch

#60. What is the tin content in a brass fitting?

A 25%

B 20%

C 5%

D 10%

Answer: 5%

General Exams (Plum Practical Db) – Page 3