Mechanical Engineering Quiz 3
1 / 50
The bulk modulus of elasticity___________________?
2 / 50
The value of Poisson?s ratio for steel is between_________________?
3 / 50
Cork is a good insulator because it has___________________?
4 / 50
In oilness bearings________________?
5 / 50
Which of the following elements does not impart hardness to steel__________________?
6 / 50
The e.g. of a link in any mechanism would experience_________________?
7 / 50
The ultimate tensile strength and yield strength of most of the metals, when temperature falls from 0 to l00?C will _________________?
8 / 50
Modulus of rigidity is defined as the ratio of_________________?
9 / 50
Rankine?s theory of failure is applicable for following type of materials___________________?
10 / 50
Maximum principal stress theory is applicable for_____________________?
11 / 50
Which of the following is not the intensive property___________________?
12 / 50
Micromotion study involves following number of fundamental hand motions_______________?
13 / 50
Hart mechanism has________________?
14 / 50
The efficiency of Diesei cycle with decrease in cut off_________________?
15 / 50
Which of the following is not the correct method of increasing fatigue limit __________________?
16 / 50
Strain is defined as the ratio of__________________?
17 / 50
The fast breeder reactor uses the following moderator__________________?
18 / 50
The critical pressure at which latent heat of vaporisation is zero is________________?
19 / 50
LMTD in case of counter flow heat exchanger as compared-to parallel flow heat exchanger is _________________?
20 / 50
The total pressure force on a plane area is equal to the area multiplied by the intensity of pressure at the centriod, if___________________?
21 / 50
The ratio of the increase in pressure in rotor blades to total increase in pressure in the stage is called__________________?
22 / 50
Angle of dwell of cam is defined as the angle________________?
23 / 50
According to fan laws, for fans having constant wheel diameter, the air or gas capacity varies______________________?
24 / 50
Coulomb friction is the friction between _________________?
25 / 50
The term scavenging is generally associated with______________________?
26 / 50
Break-even analysis can be used for__________________?
27 / 50
Flexible coupling is used because _____________________?
28 / 50
Operation of McLeod gauge used for low pressure measurement is based on the principle of_________________?
29 / 50
Which of the following has sliding motion________________?
30 / 50
The correct sequence for descending order of machinability is _____________________?
31 / 50
Acidic solution is one which has pH value__________________?
32 / 50
Iron is ____________________?
33 / 50
If a refractory contains high content of silicon, it means refractory is__________________?
34 / 50
An important characteristic of absorption system of refrigeration is__________________?
35 / 50
In vapour compression cycle, the conditii of refrigerant is saturated liquid________________?
36 / 50
Works cost implies________________?
37 / 50
Gusset stays in a boiler are provided to____________________?
38 / 50
For starting an axial flow pump, its delivery valve should be____________________?
39 / 50
Equivalent evaporation is the amount of water evaporated in a boiler from and at ____________________?
40 / 50
Air-fuel ratio in a jet engine will be of the order of__________________?
41 / 50
Each fission of U235 produces following number of fast neutrons per fission________________?
42 / 50
For manometer, a better liquid combination is one having ___________________?
43 / 50
Metals are good conductors of heat because________________?
44 / 50
The theoretically correct mixture of air and petrol is approximately ________________?
45 / 50
Idler pulley is used___________________?
46 / 50
Pipes for bicycle frames are made of___________________?
47 / 50
If a material fails below its yield point, failure would be due to___________________?
48 / 50
A boiler shell 200 cm diameter and plate thickness 1.5 cm is subjected to internal pressure of 1.5 MN/m , then the hoop stress will be_________________?
49 / 50
A one dimensional flow is one which_________________?
50 / 50
In the Halsey system of wage incentive plan, a worker is ________________?
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