4th Class Power Engineering Unit A7: Introductory Fluid Handling Technology Questions With Complete
Solutions
(4-049-1.9) The mass of a 2 m length of Schedule 40 pipe, outside diameter 101.6 mm, is:
Select one:
a. 36.98 kg
b. 31.9 kg
c. 26.92 kg
d. 11.48 kg - (ANSWER)c
(4-049-4.9) A thermostatic steam trap is controlled by the:
Select one:
a. Difference in velocity between condensate and steam
b. Air pressure built up on top of disk
c. Temperature difference between condensate and steam
d. Bucket, which flips when filled with condensate - (ANSWER)c
(4-049-5.3) The main purpose of insulation on piping systems is to:
Select one:
a. Reduce heat transfer between the pipe and its surroundings
b. Allow for the application of line identifier stickers and flow arrows
c. Provide a paint surface
d. Prevent condensate from evaporating in the lines - (ANSWER)a
(4-050-2.1) The biggest advantage of an outside screw and yoke, rising stem valve over other designs is
that it is_________.
Select one:
a. Inexpensive
b. Stronger in construction
c. More durable
d. Easy to see whether the valve is open or closed - (ANSWER)d
,4th Class Power Engineering Unit A7: Introductory Fluid Handling Technology Questions With Complete
Solutions
(4-050-4.5) A frequent cause of serious accidents with valves is __________________.
Select one:
a. improperly sized valves leading to flow problems
b. lack of maintenance
c. inadequate operational training leading to abuse
d. unsuitable materials for the operating pressures and temperatures - (ANSWER)d
(4-049-4.2) The purpose of a steam trap is to:
Select one:
a. Collect steam for storage purposes
b. Reduce the steam pressure in a line
c. Remove condensate from steam lines without allowing steam to escape
d. Remove steam from a steam line without allowing water to pass - (ANSWER)c
(4-049-3.2) A good rule of thumb is to install pipe hangers at ___________ intervals along a pipe.
Select one:
a. 1 m
b. 1.5 m
c. 3 m
d. 5 m - (ANSWER)c
(4-050-1.1) A check valve____________________.
Select one:
a. Allows flow in one direction only.
b. Uses a heavy spring for setting.
c. Requires an inspector's seal to be installed.
, 4th Class Power Engineering Unit A7: Introductory Fluid Handling Technology Questions With Complete
Solutions
d. Has a locking spindle for locking out flow for safety. - (ANSWER)a
(4-049-4.3) A steam trap should be installed below the _______ point in piping system it serves.
Select one:
a. Coldest
b. Hottest
c. Highest
d. Lowest - (ANSWER)d
(4-050-3.2) In order to ensure safe and continuous operation of a pressure reducing valve, the valve
station should have _________________.
Select one:
a. A safety valve on the high-pressure side
b. A bypass line, plus a safety valve and pressure gauge on the low-pressure side
c. Thermometers on the inlet and outlet piping
d. A strainer immediately downstream of the valve - (ANSWER)b
(4-049-4.6) When admitting steam to a steam piping system it is imperative to:
Select one:
a. Use the glycol tracing to warm the line.
b. First ensure that no water exists or can accumulate in the piping.
c. Ensure drain valves are closed to prevent steam loss.
d. Add nitrogen to steam to prevent corrosion. - (ANSWER)b
(4-049-1.16) The inside diameter of a pipe is expressed as the:
Select one:
a. Pipe size plus wall roughness
b. Nominal pipe size
Solutions
(4-049-1.9) The mass of a 2 m length of Schedule 40 pipe, outside diameter 101.6 mm, is:
Select one:
a. 36.98 kg
b. 31.9 kg
c. 26.92 kg
d. 11.48 kg - (ANSWER)c
(4-049-4.9) A thermostatic steam trap is controlled by the:
Select one:
a. Difference in velocity between condensate and steam
b. Air pressure built up on top of disk
c. Temperature difference between condensate and steam
d. Bucket, which flips when filled with condensate - (ANSWER)c
(4-049-5.3) The main purpose of insulation on piping systems is to:
Select one:
a. Reduce heat transfer between the pipe and its surroundings
b. Allow for the application of line identifier stickers and flow arrows
c. Provide a paint surface
d. Prevent condensate from evaporating in the lines - (ANSWER)a
(4-050-2.1) The biggest advantage of an outside screw and yoke, rising stem valve over other designs is
that it is_________.
Select one:
a. Inexpensive
b. Stronger in construction
c. More durable
d. Easy to see whether the valve is open or closed - (ANSWER)d
,4th Class Power Engineering Unit A7: Introductory Fluid Handling Technology Questions With Complete
Solutions
(4-050-4.5) A frequent cause of serious accidents with valves is __________________.
Select one:
a. improperly sized valves leading to flow problems
b. lack of maintenance
c. inadequate operational training leading to abuse
d. unsuitable materials for the operating pressures and temperatures - (ANSWER)d
(4-049-4.2) The purpose of a steam trap is to:
Select one:
a. Collect steam for storage purposes
b. Reduce the steam pressure in a line
c. Remove condensate from steam lines without allowing steam to escape
d. Remove steam from a steam line without allowing water to pass - (ANSWER)c
(4-049-3.2) A good rule of thumb is to install pipe hangers at ___________ intervals along a pipe.
Select one:
a. 1 m
b. 1.5 m
c. 3 m
d. 5 m - (ANSWER)c
(4-050-1.1) A check valve____________________.
Select one:
a. Allows flow in one direction only.
b. Uses a heavy spring for setting.
c. Requires an inspector's seal to be installed.
, 4th Class Power Engineering Unit A7: Introductory Fluid Handling Technology Questions With Complete
Solutions
d. Has a locking spindle for locking out flow for safety. - (ANSWER)a
(4-049-4.3) A steam trap should be installed below the _______ point in piping system it serves.
Select one:
a. Coldest
b. Hottest
c. Highest
d. Lowest - (ANSWER)d
(4-050-3.2) In order to ensure safe and continuous operation of a pressure reducing valve, the valve
station should have _________________.
Select one:
a. A safety valve on the high-pressure side
b. A bypass line, plus a safety valve and pressure gauge on the low-pressure side
c. Thermometers on the inlet and outlet piping
d. A strainer immediately downstream of the valve - (ANSWER)b
(4-049-4.6) When admitting steam to a steam piping system it is imperative to:
Select one:
a. Use the glycol tracing to warm the line.
b. First ensure that no water exists or can accumulate in the piping.
c. Ensure drain valves are closed to prevent steam loss.
d. Add nitrogen to steam to prevent corrosion. - (ANSWER)b
(4-049-1.16) The inside diameter of a pipe is expressed as the:
Select one:
a. Pipe size plus wall roughness
b. Nominal pipe size
