Mechanical Engineering Quiz 8

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Mechanical Engineering Quiz 8

1 / 50

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

2 / 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___________________?

3 / 50

Heat flows from one body to other when they have_________________?

4 / 50

Steel made from phosphatic iron is_________________?

5 / 50

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

6 / 50

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

7 / 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 __________________?

8 / 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________________?

9 / 50

Work done is zero for the following process_________________?

10 / 50

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

11 / 50

An engine indicator is used to determine the following___________________?

12 / 50

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

13 / 50

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

14 / 50

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

15 / 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_____________________?

16 / 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________________?

17 / 50

Combustion in compression ignition engines is____________________?

18 / 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________________?

19 / 50

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

20 / 50

Presence of moisture in a refrigerant affects the working of___________________?

21 / 50

Time study is__________________?

22 / 50

Critical Path Net Work helps an engineer_________________?

23 / 50

The mean effective pressure obtained from engine indicator indicates the________________?

24 / 50

Mach number is significant in_____________________?

25 / 50

Cold rolled steel sheets contain carbon of the following order___________________?

26 / 50

The knock in diesel engine occurs due to____________________?

27 / 50

Capillary action is due to the_________________?

28 / 50

Antifriction bearings are__________________?

29 / 50

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

30 / 50

According to Avogadro?s Hypothesis ______________________?

31 / 50

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

32 / 50

Which is more viscous lub oil_________________?

33 / 50

Routing assists engineers in deciding in advance___________________?

34 / 50

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

35 / 50

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

36 / 50

An example of amorphous material is____________?

37 / 50

The main advantage of line organisation is its_______________?

38 / 50

Micro motion study is__________________?

39 / 50

Drop forging dies contain carbon of the order of_________________?

40 / 50

Work study is concerned with_________________?

41 / 50

String diagram is used when__________________?

42 / 50

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

43 / 50

Density of water is maximum at__________________?

44 / 50

A large Roynold number is indication of________________?

45 / 50

A boiling water reactor uses following as fuel________________?

46 / 50

Bomb calorimeter is used to determine ___________________?

47 / 50

The draw of cotter need not exceed_________________?

48 / 50

Detonation is caused by the following unstable compounds______________________?

49 / 50

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

50 / 50

A nuclear unit becoming critical means_______________?

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