Mechanical Engineering Quiz 5
1 / 50
Pick up the correct statement about giving up of heat from one medium to other in ammonia absorption system ?
2 / 50
A safety valve in a locomotive starts leaking. The leaking medium will be_________________?
3 / 50
Pick up the wrong statement about water tube boiler in comparison to fire tube boilers ______________________?
4 / 50
The pistons are usually given a coating such as tin plating in order to________________?
5 / 50
The condition of steam in boiler drum is always ___________________?
6 / 50
Cam angle is defined as the angle_________________?
7 / 50
In a refrigeration system, heat absorbed in comparison to heat rejected is_________________?
8 / 50
Higher pairs are those which have_________________?
9 / 50
T Jie horse power transmitted by a belt is dependent upon _________________?
10 / 50
If overhead clearance is less, then the following type of engine should be selected__________________?
11 / 50
The vloumetric efficiency of compressor with increase in compression ratio will ___________________?
12 / 50
Kinetic theory of gases assumes that the collisions between the molecules are________________?
13 / 50
The tendency of a liquid surface to contract is due to the following property_____________?
14 / 50
According to principle of moments__________________?
15 / 50
A particle inside a hollow sphere of radius r, having coefficient of friction -rr can rest upto height of___________________?
16 / 50
Value engineering aims at finding out the________________?
17 / 50
Surface energy per unit area of a surface is numerically equal to _____________________?
18 / 50
Malleable cast iron _________________?
19 / 50
The evolution of heat of solution takes place in ammonia absorption plant when _____________________?
20 / 50
Piston rings are usually made of___________________?
21 / 50
The value of modulus of elasticity for mild steel is of the order of________________?
22 / 50
A cycle consisting of two adiabatics and two constant pressure processes is known as___________________?
23 / 50
The building up of worn and uridersized parts, subjected to repeated loads by electroplating is_____________________?
24 / 50
Saving of work done and power by fitting an air vessel to single acting reciprocating pump is of the order of__________________?
25 / 50
For low speed operation or for idling in petrol engines, the engine requirements are for_______________?
26 / 50
The dry saturated steam at very low pressure, (5-10 kg/cm2) when throttled to atmosphere will become________________?
27 / 50
Separators in compressor installations are located_____________________?
28 / 50
Gas turbines for power generaion are normally used___________________?
29 / 50
Bell metal contains_____________________?
30 / 50
The water tubes in a babcock and wilcox boiler are__________________?
31 / 50
For slow-speed large capacity compressor, following type of valve will be best suited________________?
32 / 50
Vapor compression refrigeration is some what like ____________________?
33 / 50
Tensile strength of a material is obtained by dividing the maximum load during the test by the_________________?
34 / 50
According to Kennedy?s theorem, if three bodies have plane motions, their instantaneous centers lie on___________________?
35 / 50
In turbo fan engine, the jet velocity as compared to turbo-jet engine is_________________?
36 / 50
The m.e.p. of a diesel cycle having fixed compression ratio with increase in cut-off will_________________?
37 / 50
Adiabatic process is________________?
38 / 50
Which of the following is not an interns combustion engine___________________?
39 / 50
Brayton cycle consists? of following four processes____________________?
40 / 50
The specific output per kg mass flow rate of a gas turbine (having fixed efficiencies of compressor and turine and fixed higher and lower temperature) with increase in pressure ratio will___________________?
41 / 50
Fatigue strength can be increased by__________________?
42 / 50
Super heating in a refrigeration cycle __________________?
43 / 50
The flow rate in gear pump___________________?
44 / 50
A metal with specific gravity of o floating in a fluid of same specific gravity a will____________________?
45 / 50
Guest?s theory of failure is applicable for following type of materials_________________?
46 / 50
Which of the following is the locus of a point that moves in such a manner that its distance from a fixed point is equal to its distance from a fixed line multiplied by a constant greater than one___________________?
47 / 50
Thermal efficiency of a thermal power plant is of the order of___________________?
48 / 50
A flywheel on a motor goes from rest to 1000 rpm in 6 sec. The number of revolutions made is nearly equal to_________________?
49 / 50
The upper surface of a weir over which water flows is known is_____________________?
50 / 50
PERT analysis is based on____________________?
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