This document contains multiple choice questions about boilers and heat engines. It covers topics like types of boilers, boiler mountings and accessories, parts of internal combustion engines like cylinders, pistons, strokes. Key points covered include: - Types of boilers include water tube and fire tube boilers. - Boiler mountings are for safety during steam generation while accessories increase efficiency. - Heat engines transform chemical energy to thermal then mechanical work. - Internal combustion engines have combustion inside the cylinder while external combustion engines have combustion outside. - Engine parts include cylinders, pistons, connecting rods and crankshafts. Strokes and positions like top dead center are also defined.

1. 1.Generates steam by transferring heat by
burning of fuel to water.
• A. Steam Boilers
• B.Haet Engine
• C.A&b
• D.None

2. 2.In------------, Water is circulated through
number of tubes and the hot flue gases flow
over these tubes.
• A. water tube boilers
• B.Fire tube boiler
• C.Engine
• D.none

3. 3.According to the Pressure Developed:
• In Low Pressure Boilers,Steam is produced at
a pressure lower than……………….bar.
• A.80
• B.180
• C.280
• D.380

4. 4.Example of High Pressure Boilers are ,
• A.Lamont,
• B.Velox,
• C.Benson,
• D.Lo-effler boiler
• E.ALL

5. 5.The working pressure and steam capacity of
cochran boiler are
A.6.5 bar and 3500 kg /hr
B. 9.5 bar and 100 kg /hr
C. 5 bar and 500 kg /hr
D. 6 bar and 350 kg /hr

6. • 6.Lamont Boiler a water tube, forced
circulation and externally fired high pressure
boiler.
• A.True
• B.Flase

7. 7. Boiler mountings are primarily intended for
the safety of the boiler and for complete
control of steam generation process.
• A. True
• B.False

8. 8.Boiler accessories are installed to increase the
efficiency of the boiler plants to help in
proper working of boiler unit.
A.True
B.False

9. 9.Identify Boiler Mountings
A. Dead weight safety valve.
B.Spring loaded safety valve
C. Fusible plug
D.Pressure gauge
E.ALL

10. 10. Identify BOILER ACCESSORIES
A.Economiser
B. Air Preheater
C. Super Heater
D. Steam Separator, Steam Trap Feed Pump
E. ALL

11. • 11.A Heat engine is a device which transforms
the chemical energy of a fuel into thermal
energy and uses this energy to produce
mechanical work.
• A.True
• B.False

12. 12.In IC engines, combustion of fuel takes place
inside the engine cylinder.Identify example of
IC engines
• A. Diesel Engines,
• B. Petrol Engines,
• C. Gas engines.
• D. ALL

13. 13.In which engine combustion of fuel takes
place outside the working cylinder.
• A.EC
• B.IC
• C.both
• D.none

14. 14.It connects the piston and crank shaft.
• A.piston
• B.crank
• C.Connecting rod
• D.cylinder

15. • 15.Inside diameter of the cylinder is termed as
• A.Bore
• B. Top Dead Center (TDC):
• C. Bottom Dead Center (BDC):
• D.Volume

16. • 16.The extreme position reached by the piston
at the top of the cylinder in the vertical engine
is called Top Dead center.
• A.True
• B.False

17. • 17.The nominal distance travelled by the
piston in the cylinder betweenthe extreme
upper and lower positions of the piston (TDC
&BDC) is termed as stroke.
• A.True
• B.False

18. • 18.It is the volume of space generated by the
movement of piston from one dead center to
another dead center.
• A. . Compression ratio (r):
• B. Cylinder volume (v):
• C. Swept volume (Vs)
• D. Clearance Volume( Vc):

19. • 19. It is the space in the cylinder, when the
piston is at Top Dead Center
• A. Compression ratio (r):
• B. Cylinder volume (v):
• C. Swept volume (Vs)
• D. Clearance Volume( Vc):

20. 20.Two stroke cycle engine In such engines, the
whole sequence of events i.e., suctions,
compression, power and exhaust are
completed in two strokes of the piston or one
complete revolution of the crankshaft
• A.True
• B.False