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Mechanical Engineering Quiz 8

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Mechanical Engineering Quiz 8

1 / 50

Mach number is significant in_____________________?

2 / 50

Water and sediment in fuel oil can be removed by _______________________?

3 / 50

Routing assists engineers in deciding in advance___________________?

4 / 50

Drop forging dies contain carbon of the order of_________________?

5 / 50

During a tensile test on a specimen of 1 cm cross-section, maximum load observed was 8 tonnes and area of cross-section at neck was 0.5 cm2. Ultimate tensile strength of specimen is___________________?

6 / 50

Bomb calorimeter is used to determine ___________________?

7 / 50

A certain refrigerating system has a normal operating suction pressure of 10 kg/cm gauge and condensing pressure of about 67 kg/cm. The refrigerant used is________________?

8 / 50

Heat flows from one body to other when they have_________________?

9 / 50

Combustion in compression ignition engines is____________________?

10 / 50

If n = number of members andy = number of joints, then for a perfect frame, n =________________?

11 / 50

The ratio of absolute viscosity to mass density is known as_________________?

12 / 50

Which is more viscous lub oil_________________?

13 / 50

A boiling water reactor uses following as fuel________________?

14 / 50

The compression ratio in a jet engine varies proportional to ____________________?

15 / 50

The C.G. of a plane lamina will not be at its geometrical centre in the case of a__________________?

16 / 50

The knock in diesel engine occurs due to____________________?

17 / 50

Cold rolled steel sheets contain carbon of the following order___________________?

18 / 50

Steel made from phosphatic iron is_________________?

19 / 50

A particle moves along a straight line such that distance (x) traversed in t seconds is given by x = t2 (t ? 4), the acceleration of the particle will be given by the equation __________________?

20 / 50

The draw of cotter need not exceed_________________?

21 / 50

Time study is__________________?

22 / 50

If p = bearing pressure on projected bearing area, z = absolute viscosity of lubricant, and N = speed of journal, then the bearing characteristic number is given by________________?

23 / 50

Work study is concerned with_________________?

24 / 50

Which is false statement about advantages of multistage compressor in comparison to single stage compressor_________________?

25 / 50

The C.O.P of a refrigeration cycle with increase in evaporator temperature, keeping condenser temperature constant, will______________________?

26 / 50

Critical Path Net Work helps an engineer_________________?

27 / 50

Capillary action is due to the_________________?

28 / 50

Antifriction bearings are__________________?

29 / 50

The difference of pressure between the inside and outside of a liquid drop is _______________?

30 / 50

The stress at which extension of the material takes place more quickly as compared to the increase in load is called______________?

31 / 50

Molecular volume of any perfect gas at 600 x 103 N/m2 and 27?C will be ____________________?

32 / 50

An engine indicator is used to determine the following___________________?

33 / 50

Which of the following depreciation system ensures that the interest be charged on the cost of machine asset every year on the book value, but the rate of depreciation every year remains constant_____________________?

34 / 50

Free surface of a liquid behaves like a sheet and tends to contract to smallest possible area due to the_________________?

35 / 50

Micro motion study is__________________?

36 / 50

A chain comprises of 5 links having 5 joints. Is it kinematic chain ?

37 / 50

Work done is zero for the following process_________________?

38 / 50

Presence of moisture in a refrigerant affects the working of___________________?

39 / 50

String diagram is used when__________________?

40 / 50

An example of amorphous material is____________?

41 / 50

The main advantage of line organisation is its_______________?

42 / 50

A large Roynold number is indication of________________?

43 / 50

According to Avogadro?s Hypothesis ______________________?

44 / 50

Density of water is maximum at__________________?

45 / 50

Detonation is caused by the following unstable compounds______________________?

46 / 50

Endurance limit or fatigue limit is the maximum stress that a member can withstand for an infinite number of load applications without failure when subjected to________________?

47 / 50

A nuclear unit becoming critical means_______________?

48 / 50

The mean effective pressure obtained from engine indicator indicates the________________?

49 / 50

A two stroke crank compressed engine has following ports in the cylinder_______________?

50 / 50

A key capable of tilting in a recess milled out in a shaft is known as______________________?

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