Mechanical Engineering Quiz 22
1 / 50
If TL is the largest allowable event occurrence time, total activity slack (s) is equal to__________________?
2 / 50
At critical point, i.e. p=225.65 kg/cm2, the latent enthalpy of vaporisation is______________?
3 / 50
Moisture would find its way into insulation by vapour pressure unless it is prevented by __________________ ?
4 / 50
Shaft revolving in a bearing is the following type of pair________________?
5 / 50
The coefficient of friction depends on________________?
6 / 50
The function of a washer is to___________________?
7 / 50
The center of percussion of a solid cylinder of radius r resting on a horizontal plane will be_________________?
8 / 50
The endurance limit of a material with finished surface in comparison to rough surface is_________________?
9 / 50
Argentite is the principal ore or raw material for _________________?
10 / 50
In spot welding, the spacing between two spot weld should not be less than _______________?
11 / 50
The essential equipment for producing high vlotage for sparking in petrol engines with battery is_______________?
12 / 50
Steel contains____________________?
13 / 50
Transmission of power from the engine to the rear axle of an automobile is by means of___________________?
14 / 50
Recrystallisation temperature can belowered by_________________?
15 / 50
Enriched uranium may contain fissionable contents of the order of__________________?
16 / 50
the chain is unconstrained when_____________?
17 / 50
Criticalpath on PERT/CPM chart is obtained by joining the events having____________________?
18 / 50
Pick up the incorrect statement about advantages of work sampling_________________?
19 / 50
The pressure in the air space above an oil (sp. gr. 0.8) surface in a tank is 0.1 kg/cm?. The pressure at 2.5 m below the oil surface will be __________________?
20 / 50
If d is the diameter of bolt hole then for a flanged pipe joint to be leak proof, the circumferential pitch of the bolts should be_________________?
21 / 50
A non-dimensional number generally associated with natural convection heat transfer is________________?
22 / 50
Absorptivity of a body will be equal to its emissivity___________________?
23 / 50
Pick up the wrong statement ?
24 / 50
The latent heat of steam with increase of pressure__________________?
25 / 50
Alnico, an alloy used extensively for permanent magnets contains iron, nickel, aluminium and cobalt in the following ratio _____________________?
26 / 50
Addition of lead and bismuth to aluminium results in_________________?
27 / 50
The time by which the activity completion time can be delayed without affecting the start of succeeding activities, is Known as_________________?
28 / 50
Cetane number is determined by comparing the performance of diesel oil with the following hydrocarbons___________________?
29 / 50
The rise or depression of liquid in a tube due to surface tensionwim increase in size of tube will________________?
30 / 50
Choose the wrong statement?
31 / 50
Compression efficiency is compared against_____________________?
32 / 50
Otto cycle consists of following four processes____________________?
33 / 50
Which of the following mechanism is obtained from lower pair________________?
34 / 50
The specific fuel consumption per BH hour for a petrol engine is approximately__________________?
35 / 50
The air requirement of a petrol engine during starting compared to theoretical airequired for complete combustion is___________________?
36 / 50
Heat conducted througfi unit area and unit thick face per unit time when temperature difference between opposite faces is unity,is called__________________?
37 / 50
Flash point of fuel oil is __________________?
38 / 50
Specific weight of sea water is more that of pure water because it contains_________________?
39 / 50
One barometric pressure or 1 atmospheric pressure is equal to___________________?
40 / 50
Cylinder clearance in a compressor should be _________________?
41 / 50
What is the most common valve used in piping systems to throttle or regulate flow ?
42 / 50
The function of injector used in small capacity boilers is to____________________?
43 / 50
Governor is used in automobile to_______________?
44 / 50
The term N.T.P. stands for________________________?
45 / 50
Auto-ignition temperature is____________________?
46 / 50
Sublimation region is the region where__________________?
47 / 50
A model of torpedo is tested in a towing tank at a velocity of 25 m/sec. The prototype is expected to attain a velocity of 5 m/sec. What model scale has been used ?
48 / 50
In S.H.M., the velocity vector w.r.t. displacement vector _________________?
49 / 50
The percentage of carbon in pig iron varies from___________________?
50 / 50
Graphical method, simplex method, and transportation method are concerned with__________________?
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