Mechanical Engineering Quiz 6
1 / 50
According to fan laws, for the fans having constant wheel diameters, the power demand varies_______________?
2 / 50
The air entry velocity m a rocket as compared to aircraft is_________________?
3 / 50
Pick up the wrong statement ?
4 / 50
The cam shaft of a four stroke I. engine running at 1500 rmp will run at __________________?
5 / 50
Volumetric efficiency of air compressors is of the order of________________?
6 / 50
Isochoric process is one in which___________________?
7 / 50
A fast breeder reactor__________________?
8 / 50
Taps, dies and drills contain carbon________________?
9 / 50
Which of the following is the property of a system___________________?
10 / 50
Diesel engine can work on very lean air fuel ratio of the order of 30 : 1. A petrol engine can also work on such a lean ratio provided__________________?
11 / 50
Nodular iron has____________________?
12 / 50
If a gas vapour is allowed to expand through a very minute aperture, then such a process is known as__________________?
13 / 50
Which of the following engines can work on very lean mixture__________________?
14 / 50
The pressure at which latent heat of vaporisation of water is zero, is_________________?
15 / 50
Two coplanar couples having equal and opposite moments_________________?
16 / 50
The amount of heat flow through a body by conduction is_______________?
17 / 50
Inventory management consists of__________________?
18 / 50
The diameter of internal flue tubes in a Lancashire boiler compared to its shell is_________________?
19 / 50
In jet engines the products of combustion after passing through the gas lurbine are discharged into_______________?
20 / 50
The process layout is best suited where______________?
21 / 50
Ethyl fluid is used_______________________?
22 / 50
The unit of power in S.I. units is______________?
23 / 50
The behaviour of gases can be fully determined by___________________?
24 / 50
An ideal air compressor cycle without clearance on p-v diagram can be represented by following processes________________?
25 / 50
The specific fuel consumption for a petrol engine first decreases with increase in fuel air ratio and then increases with further increase in fuel air ratio. The minimum value occurs in the range of__________________?
26 / 50
The domestic refrigerator uses following type of compressor ____________________?
27 / 50
Highest temperature encountered in refrigeration cycle should be________________?
28 / 50
From a circular plate of diameter 6 cm is cut out a circle whose diameter is a radius of the plate. Find the e.g. of the remainder from the center of circular plate____________________?
29 / 50
The compression ratio of motor cars is___________________?
30 / 50
Center of pressure on an inclined plane is___________________?
31 / 50
Axial flow compressor resembles____________________ ?
32 / 50
I kgf/cm2 is equal to________________?
33 / 50
The C.O.P. of a refrigeration cycle with lowering of condenser temperature, keeping the evaporator temperature constant, will__________________?
34 / 50
Sense of tangential acceleration of a link_________________?
35 / 50
Out of the following, from where you will prefer to take intake for air compressor_________________?
36 / 50
For fluctuating loads, welsuited bearing is_________________?
37 / 50
Percentage reduction of area in performing tensile test on cast iron may be of the order of__________________?
38 / 50
Routing is essential in the following type of industry_________________?
39 / 50
In a four-bar chain it is required to give an oscillatory motion to the follower for a continuous rotation of the crank. For the lengths of 50 mm of crank and 70 mm of the follower, determine theoretical maximum length of coupler. The distance between fixed pivots of crank and followers is________________________?
40 / 50
Which of the following pipes is least corrosion resistant__________________?
41 / 50
In mottled cast iron, carbon is available in__________________?
42 / 50
The value of shear stress which is induced in the shaft due to the applied couple varies____________________?
43 / 50
Motion study involves analysis of________________?
44 / 50
Fusible plug for boilers is made of fusible metal containing tin, lead, and___________________?
45 / 50
Heat is transferred by all three modes of transfer, viz, conduction, convection and radiation in _________________?
46 / 50
In a compressor, free air delivered is the actual volume delivered at the stated pressure reduced to ____________________?
47 / 50
Unit of thermal diffusivity is_________________?
48 / 50
The artificial activity; which indicates that an activity following it cannot be started unless, the preceding activity is complete, is known as_________________?
49 / 50
Center of gravity of a thin hollow cone lies on the axis at a height of ___________________?
50 / 50
Automobile steering gear is an example of____________________?
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