Mechanical Engineering Quiz 26
1 / 50
In the tensile test, the phenomenon of slow extension of the material, i. e. stress increasing with the time at a constant load is called_____________?
2 / 50
Pick up the correct statement ?
3 / 50
For the same lift and same angle of ascent, a smaller base circle will give_______________?
4 / 50
Carbon residue in diesel oil should not be more than___________________?
5 / 50
The deformation of a bar under its own weight compared to the deformation of same body subjected to a direct load equal to weight of the body is_______________?
6 / 50
The total energy released in fission of U is__________________?
7 / 50
A self locking screw has________________>
8 / 50
The three ?Ts? for good combustion are____________________?
9 / 50
The unit of power in S.I. units is_______________________?
10 / 50
The efficiency of I.C engines normally is of the order of_________________?
11 / 50
The size of inlet valve of.an engine in comparison to exhaust valve is_________________?
12 / 50
The sense of Corioli?s component is such that it_________________?
13 / 50
Pick up the wrong statement?
14 / 50
The fatigue life of a part can be improved by_____________________?
15 / 50
ABC analysis deals with_________________?
16 / 50
Critical temperature is? the temperature above which _____________________?
17 / 50
A universal joint is an example of_____________________?
18 / 50
Total heat of a substance is also known as __________________?
19 / 50
Two pipe systems can be said to be equivalent, when the following quantities are same__________________?
20 / 50
For similarity, in addition to models being geometrically similar to prototype, the following in both cases should also be equal____________________?
21 / 50
On weight basis, air contains following parts of oxygen_________________?
22 / 50
The condition of perfect vacuum, i.e., absolute zero pressure can be attained at ____________________?
23 / 50
Atomic number of an element in the periodic table represents the numbers of_________________?
24 / 50
Reflector in nuclear plants is used to________________?
25 / 50
Heat transfer by radiation mainly depends upon___________________?
26 / 50
The value of mass density in kgsecVm4 for water at 0?C is_________________?
27 / 50
The ratio of lateral strain to the linear strain within elastic limit is known as_______________?
28 / 50
Carnot cycle efficiency is maximum when______________?
29 / 50
For a floating body to be in equilibrium_____________________?
30 / 50
A refrigeration cycle operates between condenser temperature of + 27?C and evaporator temperature of- 23?. The Cannot coefficient of performance of cycle will be_________________?
31 / 50
In order to have constant clain reaction to produce a constant rate of heat output, the value of ratio of the number of neutrons in one generation to the number of neutrons in the immediately preceding generation must be________________?
32 / 50
What does symbol ?D? imply in work study ___________________?
33 / 50
Thermal diffusivity of a substance is __________________?
34 / 50
A bench vice has following type of threads____________________?
35 / 50
Pick up the false statement ?
36 / 50
A cold chisel is made of_______________?
37 / 50
Slack represents the difference between the___________________?
38 / 50
Impulse turbine is generally fitted______________________?
39 / 50
Which of the following processes is irreversible process___________________?
40 / 50
Center of percussion is___________________?
41 / 50
Size of boiler tubes is specified by___________________?
42 / 50
If D1 and D2 be the diameters of driver and driven pulleys, then belt speed is proportional to__________________?
43 / 50
The fuel in diesel engine is normally injected at pressure of_________________?
44 / 50
Compressed air coming out from a punctured football___________________?
45 / 50
Instantaneous center of rotation of a link in a four bar mechanism lies on _______________?
46 / 50
The value of the wavelength for maximum emissive power is given by ___________________?
47 / 50
The change in internal energy in steam engines equals to__________________?
48 / 50
High carbon content in diesel oil used for diesel engine leads to_________________?
49 / 50
Resilience of a material is considered when it is subjected to_________________?
50 / 50
The Bifilar suspension method is used to determine__________________?
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