1.What is the material of Crank Shaft? Standard time= a. normal time minus allowance b. reliability time.
2. Energy stored in the spring when it is fully compressed without any deformation is ——– Ans. Resilience or proof resilience
3. Question on the relation ?L=PL/AE. What is ? (strain)? Ans. P/AE
4.Lower spindle speed is necessary for? if diameter of w/p is large when depth of cut is high
5. For which of the following material machinability is high? Ans. Aluminium
6. 24 & 2 in M24X2 represent which of the following two parameters respectively?
7.What is the equation governing kinematic links and pairs?
a. L=2p-3 b. L=2p-4 c. L=3p-5]
8.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
For same compression ratio which of the following cycles is more efficient?
a. otto b. diesel
9.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
10.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
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.Which type of thread is more effective for power transmission in one direction?
a. square b. acme c. buttress
13.The state of a liquid during evaporation is
a. vapour b. steam c. water vapour
14.Throttle valve is used in steam engines to
control pressure of steam
control volume of steam
control temperature of steam none of the above
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