1. Throttle valve is used in steam engines to

• control pressure of steam
• control volume of steam
• control temperature of steam
• none of the above

2. What is the equation governing kinematic links and pairs?

a) L=2p-3            b) L=2p-4             c) L=3p-5]

3. What is the material of Crank Shaft?

4. The state of a liquid during evaporation is ____________

a. vapour             b. steam             c. water vapour

5. Energy stored in the spring when it is fully compressed without any deformation is ______________

Answer : Resilience or proof resilience

6. The angle between face of the tool and plane parallel to the base of the tool is _______________

a. rake angle              b. clearance angle              c. cutting edge angle              d. lip angle

7. Which type of thread is more effectve for power transmission in one direction?

a. square              b. acme              c. buttress

8. Lower spindle speed is necessary for?

• If diameter of w/p is large
• When depth of cut is high

9. Standard time = ______________

a. normal time minus allowance                     b. reliability time

10. Pick out the wrong statement

• Joule cycle consists of 2 constant volume processes and 2 adiabatic processes
• Otto cycle consists of 2 constant volume processes and 2 adiabatic processes
• Ericsson cycle consists of 2 constant volume processes and 2 adiabatic processes
• None of the above

11. Expansion process in Otto cycle lasts

• from TDC to BDC
• 30 degrees before TDC till 50 degrees before BDC
• 30 degrees after TDC till 50 degrees after BDC
• none of the above

12. For same compression ratio which of the following cycles is more efficient?

a. otto         b. diesel

13. Bevel gears are used for transmitting torque between

• Intersecting & coplanar shafts
• Non-intersecting & non-coplanar shafts
• Non-parallel & non-coplanar shafts
• None of the above

14. L=PL/AE. What is e (strain)?

Answer : P/AE