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1
Q

a thin homogenous metallic plate containing a hole is heated sufficiently to cause expansion

A

increases as the same rate at area of the metal increases

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2
Q

How is the material usage variance defined?

A

(quantity issued - standard quantity) (standard price)

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3
Q

Which statement about area moments of inertia is fake

The area closest to the axis of interest rate are the most significant

A

The area closest to the axis of interest rate are the most significant

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4
Q

Ceramics are mostly

A

all of these

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5
Q

variations of atomic arrangement are known as

A

isomers

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6
Q

For corrosion resistant stainless shell, what minimum percentage of chromium in the alloy is required? `

A

11 %

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7
Q

Which statement about a charge placed on a dielectric is true

A

The charge is confined in the region in which the charge is placed

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8
Q

What is the main reason for using high voltage in the transmission of power in the grid system?
I. To transmit bulk power with minimum line losses
II. Increase system reliability

A

I. To transmit bulk power with minimum losses

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9
Q

Which of the following insulators will be selected for high voltage application

a. strain type
b. disc type
c. suspension type

A

suspension type

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10
Q

The effect of series capacitor on a transmission line is to improve

steady state instability
transient ability

A

steady state instability

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11
Q

By increasing the transformer voltage double of its original value, the same power can be dispatched keeping the line loss

A

one fourth its original value

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12
Q

Compared to Gauss Seidel method, Newton Raphson method takes

A

less number of iterations and more timer per iteration

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13
Q

If f(x) =x when x id from 0 to 2 and f(x) = ex, when x is from 2 to infinity. Find the laplace transform

A

(a/s sqd.) + (e raised to -2s)( e sq/s - 1 - 2/s - 1/ s sq)

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14
Q

After installing a new cable modem and new router, which of the following should be the order to start up the devices?

cable modem, computes, router

A

cable modem, router , then the computer

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15
Q

It represents the distance of a point from the y axis

A

abscissa

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16
Q

The locus of a point which moves so that distance from a fixed point and a fixed line is always equal

A

parabola

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17
Q

The discharge of the centrifugal pump can be throlled without the building up of an excessive pressure or overloading its unit

true or false

A

true

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18
Q

The central processing unit of computer is the combination of

A

arithmetic unit and control unit

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19
Q

Metals of this group are composed of one or more elements such as iron, aluminum copper etc

A

metals

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20
Q

When installing heatsink back on the computer after replacing a failed processor, which of the following must be done during installation

A

Thermal compound must be installed between the processor and the heatsink

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21
Q

How many times the diameter of the largest raceways shall the length of the box be in straight pulls

A

8

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22
Q

Metal used to recover copper from a solution of copper sulphate

A

Fe

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23
Q

Treatment that can increase the fatigue strength of steel

A

shot peening

24
Q

In mix gas such as air, the rms speed of different molecules are

A

inversely proportional to the square root of the molecular mass

25
True for a propeller type impeller centrifugal pump a. the head develop is due to the push of the vanes and flow is almost entirely axial b. the head developed cannot be determined by the rotation of the vanes
a. the head develop is due to the push of the vanes and flow is almost entirely axial
26
Which one of the following is a light metal? potassium mercury silver
potassium
27
If the magnetic flux through a certain region is changing with time an emf must exist around the boundary an electric field must exist around the boundary
an emf must exist around the boundary
28
device which operates on the principle of Kirchhoff's Current Law
Differential Protective Relay
29
Reason for using such configuration ( DC configuration) instead of AC motor generator sets
high torque, good incremental power at low speed and performs well in high speeds
30
What is the main reason that alternating current replaced direct current for general used?
AC can be conveniently transformed
31
At a certain location in Australia, it is necessary to supply 300 LW of 60 hz power. How many poles should each of the two machine sin order to concvert 50 hz to 60 hz 10 pole synch motor coupled to 10 pole synch gen 12 pole synch motor coupled to 10 pole synch gen 10 pole synch motor coupled to 12 pole synch gen
10 pole synch motor coupled to 12 pole synch gen
32
The magnetic torque exerted on a current carrying loop of wire by a uniform magnetic field b is max when plane of the loop is perpendicular to b independent of the orientation of the loop
maximum when the plane of the loop is perpendicular to b
33
Most important factor to be considered in the selection of fuel for power plants I. cost II. calorific value
both I and II
34
When using net present worth calculations to compare two projects, which of the following would invalidate the calculation differences in the magnitude of projects evaluating over different time periods mutually exclusive events
evaluating over different time periods
35
Does not threaten the operation of computer
firewall
36
deadlock situation that occurs when a program references a difference page for almost every instructions, thrashing paging
thrashing
37
system where there is flow of matter through the boundary
open system
38
What kind of bond do you expect in bronze
metallic
39
What is wrong with the program I cannot be an integer The value of I cannot be changed in the DO loop
The value of I cannot be changed in the DO loop
40
structural elements subjected to torsion develop
shearing stress
41
Three moment equation may be used to analyze continuous beam beam loaded at the third point
continuous beam
42
Which of the following does not transfer to or from a system moving piston a membrane that bursts
a membrane that bursts
43
Which of the following is not an assumption of EOQ model with no shortage There is an upper bound on the quantity ordered there is a positive cost on each unit inventoried
there is an upper bound on the quantity ordered
44
Which of the following distribution system gives greater reliability
ring system
45
When peace and order problem exist, NGCP issues
security red alert
46
RA 7832 concerns on | pilferage
pilferage theft rationalizing of system loss
47
Strain type insulators are used when I. The transmission line is dead ended II. The direction of transmission line changes
Either I or II
48
Which of the following interruption events is NOT excluded in the calculation of distribution utility indices outages that occur in?
outages on 34.5 KV lines
49
In PDC,act implemented which of the following is not included establishment of wholesale non privatization of at least 70 percent of the total capacity of generating assets of NPC
non privatization of at least 70 percent of the total capacity of generating assets of NPC
50
Defects seen by optical or electron microscope starts with abb
abberation
51
An essential part of a large dam and provided ends with way
spillway
52
Which of the following is an example of an integrity violation a website a merchant an unauthorized
an unauthorized person intercepts an online communication and changes its content
53
In cold working of metals
strength and hardness of steel is increased
54
parameter that can be neglected for a short line res ind cap
capacitance
55
Peak load plants are designed to supply power at
low capital cost and high operating cost

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