EXAMVEDA

Question 1

Which of the following will resit maximum shock and vibration without cracking?

Answer 1

C. Malleable Iron

Question 2

Volume of blast furnace slag is about _____ times the volume of hot metal (pig iron) of the same weight.

Answer 2

THREE (3)

Question 3

The most commonly used combustion
system manufactured in India for the thermal power plant boilers is the ____ combustion system.

Answer 3

PULVERISED FUEL

Question 3

Carbon is present in the form of ___ in grey cast iron.

Answer 3

FLAKES

Question 4

Isotropic materials have the same ____ in all directions.

Answer 4

ELASTIC PROPERTIES

Question 5

First empirical temperature scale conceived is the ____temperature scale.

Answer 5

FARHENHEIT

Question 6

If a heat transfer surface is pock-marked with a number of cavities, then as compared to a smooth surface the heat transfer by ___ will not increase.

Answer 6

CONVECTION

Question 7

PICK OUT THE WRONG STATEMENT
A. Molecules with symmetrical arrangements (e.g., CH4 or CCl4) are non-polar
B. Generally, nonpolar compounds are chemically inactive, conduct electricity poorly and do not ionize
C. Most of the hydrocarbons are non-polar
D. None of these

Answer 7

D. None of these

Question 8

Materials having resistivity from 1 to 100 ohm-cm (measurement of the volume of resistivity of a semiconductive material) is termed as ______.

Answer 8

SEMI-CONDUCTOR

Question 9

Alloys having more than 80% copper are generally more _____.

Answer 9

CORROSION RESISTANT

Question 10

Which of the following is not used as a fuel in rocket propellant?

Answer 10

B. LIQUID OXYGEN

Question 11

Toughness of a material is measured by the _____.

Answer 11

UNIVERSAL TESTING MACHINE

Question 12

Fatigue resistance of a material is measured by the ______.

Answer 12

ENDURANCE LIMIT

Question 13

The stress at which a metal fails by fatigue lines?

Answer 13

C. IN THE ELASTIC RANGE.

Question 14

Pick out the wrong statement. If the net positive suction head (NPSH) requirement of a pump is not satisfied, then..

Answer 14

B. ITS EFFICIENCY WILL NOT BE AFFECTED.

Question 15

The ratio of coil diameter to wire diameter of a spring is called the

Answer 15

SPRING INDEX

Question 16

Pick out the wrong statement about fast breeder reactor.

Answer 16

A. USES MOLTEN SODIUM AS MODERATOR.

Question 17

Coke is added in the blast furnace to

Answer 17

REDUCE AND MELT THE IRON ORE.

Question 18

Castability of aluminum is increased by the addition of _____ in it.

Answer 18

SILICON

Question 19

Speed of a submarine in deep sea & that of an aeroplane is measure by a/an ____.

Answer 19

PITOT TUBE

Question 20

Atomic ___ of an element is a whole number.

Answer 20

NUMBER

Question 20

Specific heat of an ideal gas depends upon its _____.

Answer 20

TEMPERATURE

Question 21

Rankine cycle comprises of two isothermal and two ____ processes.

Answer 21

ISOBARIC

Question 22

____ is produced by the annealing of white cast iron.

Answer 22

MALLEABLE IRON

Question 23

Brinell Hardness Number (BHN) for talc is approximately in the range of ____.

Answer 23

20-30

Question 24

Gantt charts are used for streamlining the ___.

Answer 24

PRODUCTION SCHEDULE

Question 25

Materials having _____lattice structure are usually the most ductile.

Answer 25

FACE CENTERED CUBIC (FCC)

Question 26

Copper is not present as an alloying constituent in _____.

Answer 26

NICHROME

Question 27

Kinematic viscosity of water as compared to that of air is ____.

Answer 27

15% LESS

Question 28

Area under the stress-strain curve up to the _____ is referred to as the modulus of resilience.

Answer 28

PROPORTIONAL LIMIT

Question 29

_____ test can be termed as the semi-destructive test.

Answer 29

HARDNESS

Question 30

A 2 kg object weight 1.8 kgf on a spring balance. The value of “g” at that location in m/sec2 is _____.

Answer 30

8.82

Question 31

The weight of a body at the center of the earth is _____.

Answer 31

ZERO (0)

Question 32

The efficiency of a Carnot heat engine operating between absolute temperatures T1 and T2 (when, T1 > T2) is given by T1- T2 T1. The co-efficient of performance (C.O.P) of a Carnot heat pump operating between T1 and T2 is given by T2 T1-T2.

Question 33

Lead is poured into the joint between two ______ pipes.

Answer 33

CAST IRON

Question 34

Free oxygen is removed from boiled feed water, because it is ______.

Answer 34

CORROSIVE

Question 35

Inspection of surface and sub-surface cracks in non-magnetic alloys is done by ______ testing method.

Answer 35

DYE PENETRANT

Question 36

For a thermodynamic system undergoing a process, which of the following pairs best expresses the relationship similar to that expressed by the pressure-volume plot.

Answer 36

– A. TEMPERATURE-ENTROPY.

Question 37

In “Imperial Smelting Process” for extraction of zinc, zinc vapour thus produced is quenched in the external condenser by the use of the following:

Answer 37

D. RAIN OF MOLTEN LEAD.

Question 38

Milligram of KOH required to saponify 1 gm of oil is called _____.

Answer 38

SAPONIFICATION

Question 38

A controller action in which there is a continuous relation between values of controlled variable and the rate of change of controlled output signal is called the _____ action.

Answer 38

INTEGRAL

Question 39

Angular displacement can be measured suitably by a ______.

Answer 39

SHAFT ENCODER

Question 40

Cold cracking in the heat affected zone of a high strength steel weld can take place because of the ______.

Answer 40

MARTENSITE FORMATION

Question 41

Which of the following are made out of the carbon steel having carbon content of 0.9 to 1%?

Answer 41

A. SMALL PUNCHES, BROACHES REAMERS AND SPRINGS.

Question 42

Alumina, Silica, Lime and Iron oxide are the basic raw material for the manufacture of Portland cement. The component of Portland cement which first hardens is.

Answer 42

A. 5CaO + 3 Al2O3.

Question 43

Function of feed check valve in a boiler is to?

Answer 43

C. PREVENT THE BACK FLOW OF WATER.

Question 43

Cold chisel and hammers are made of ____.

Answer 43

HIGH CARBON STEEL.