Mechanical Engineering Quiz 32

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Mechanical Engineering Quiz 32

1 / 50

Which of the following constituents of steels is softest and least strong ________________?

2 / 50

The valve rod in a steam engine is connected to an eccentric rod by_________________?

3 / 50

Which of the following is a permanent fastening ?

4 / 50

The basic job of feed water treatment in boilers is to overcome the problem of __________________?

5 / 50

Alcohol is used in manometer, because____________________?

6 / 50

Standard time is defined as ____________________?

7 / 50

Elinvar, an alloy used in precision instruments, hair springs for watches, etc. contains the following element as principal alloying element__________________?

8 / 50

Heating wet steam at constant temperature is heating it at constant_________________?

9 / 50

One ton of refrigeration is equal to the refrigeration effect corresponding to melting of 1000 kg of ice_________________?

10 / 50

The maximum value of the pressure angle in case of cam is kept as________________?

11 / 50

Carburretion is done to________________?

12 / 50

Corioli?s component acts________________?

13 / 50

The ideal efficiency of a Brayton cycle with regeneration, with increase in pressure ratio will______________?

14 / 50

If an application calls for stresses on screw threads in one direction only, then the following type of thread would be best suited ________________?

15 / 50

Ball valves are commonly used to_________?

16 / 50

In order to obtain bolt of uniform strength____________________?

17 / 50

The unit of pressure in S.I. units is____________________?

18 / 50

The time constant of a thermocouple is_______________?

19 / 50

Pick up the correct statement from the following?

20 / 50

Delta iron occurs at temperature of_______________?

21 / 50

The number of links and instantaneous centers in a reciprocating engine mechanism are ___________________?

22 / 50

The employees provident fund act is applicable to________________?

23 / 50

According to fan laws, at constant weight of air or gas, the speed, capacity and pressure vary________________?

24 / 50

A grey body is one whose absorptivity_________________?

25 / 50

The change in the unit volume of a material under tension with increase in its Poisson?s ratio will ________________?

26 / 50

Which is false statement about multistage compression ?

27 / 50

If threads on a bolt are left hand, threads on nut will be_____________________?

28 / 50

The cycle in which heat is supplied at constant volume and rejected at constant pressure is known as_________________?

29 / 50

A grey body is one whose absorptivity _________________?

30 / 50

In a throttling process________________?

31 / 50

A heavy string attached at two ends at same horizontal level and when central dip is very small approaches the following curve ____________________?

32 / 50

Metacentre is the point of intersection of _________________________?

33 / 50

The buoyancy depends on___________________?

34 / 50

The molecules in a solid move______________?

35 / 50

Ratio of inertia force to elastic force is known as__________________?

36 / 50

In counter flow heat exchangers_________________?

37 / 50

The actual volume of fresh charge admitted in 4-stroke petrol engine is_________________?

38 / 50

The crystal of alpha iron is ____________________?

39 / 50

Angle of ascent of cam is defined as the angle___________________?

40 / 50

Which is not correct statement about pulverised fuel firing ?

41 / 50

Fire tube boilers are limited to a maximum design working pressure of ____________________?

42 / 50

Reaction turbines are used for____________________?

43 / 50

In turbulence chamber in diesel engine__________________?

44 / 50

If a material expands freely due to heating it will develop ____________________?

45 / 50

The- most efficient method of compressing air is to compress it_________________?

46 / 50

Intensive property of a system is one whose value____________________?

47 / 50

Which of the following are ferrite materials__________________?

48 / 50

Job evaluation is the method-of determining the________________?

49 / 50

Choose the correct relationship ?

50 / 50

Two dimensional flow occurs when________________?

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