Q9. With reference to a water tube boiler :
a) State the indication that a tube is leaking.
(i) When the amount of leakage is small.
(ii) When the amount of leakage is large.
b) If the failed tube is located within the tube bank.
(i) How can it be identified.
(ii) Describe immediate actions and temporary repairs done.
Q9. (a) What is Accumulation of pressure test for Boiler and what is its purpose? (6)
(b) Describe the detailed procedure for an Accumulation of pressure test. (10)
Q5. With regard to keeping the gas side of boilers in good condition,
Discuss EACH of the following.
1. The mechanism of combustion, stating the factors which are important to good combustion (6)
2. Oil fuel treatment (5)
3. Soot removal equipment (5)
Q5. (a) State why the presence of oil in boiler water is considered serious. (4)
(b) Suggest likely sources of oil contamination. (4)
(c) Describe how the source is traced. (4)
(d) Describe how the whole steam plant is restored to oil free conditions. (4)
Username or email address *Required
Password *Required
Note: Entering wrong username in the login form will ban your IP address immediately. Entering wrong password multiple times will also ban your IP address temporarily.
Log in
Lost your password? Remember me
No account yet?
