Scribd
Upload
44 views2 pages

Qurtuba University of Science and It: Department of Electrical Engineering (Mid Term Examination Spring-2016)

This document contains a midterm exam for a power generation course. It has 10 multiple choice questions covering topics like types of turbines used for different head heights, generator characteristics, components of hydroelectric plants, and power system terms. It also has 3 short answer questions defining hydroelectric plant components and terms, and describing how a Stirling engine works. The exam is out of 25 total marks and students are given 2 hours to complete it.

Uploaded by

Engr. Raheel khan
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
44 views2 pages

Qurtuba University of Science and It: Department of Electrical Engineering (Mid Term Examination Spring-2016)

This document contains a midterm exam for a power generation course. It has 10 multiple choice questions covering topics like types of turbines used for different head heights, generator characteristics, components of hydroelectric plants, and power system terms. It also has 3 short answer questions defining hydroelectric plant components and terms, and describing how a Stirling engine works. The exam is out of 25 total marks and students are given 2 hours to complete it.

Uploaded by

Engr. Raheel khan
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
You are on page 1/ 2

QURTUBA UNIVERSITY OF SCIENCE AND IT

Department of Electrical Engineering


(Mid Term Examination Spring-2016)
Paper: Power Generation
Date: /01/2016
Total Marks: 25
Allowed: 2hr
Note: Attempt all Questions

Time

Q.1 Choose the best correct answer & each question carry equal mark
10
(i) For low-head plant which turbine is used?
(a) Kaplan
(b) Francis
(c) Pelton
(d) Any
(ii) For Medium-head plant which turbine is used?
(a) Kaplan
(b) Pelton
(c) Francis
(d) Any
(iii) For High-head Plant which turbine is used?
(a) Pelton
(b) Francis
(c) Kaplan
(d) Any
(iv) Generator used in in low-head plant are
(a)high speed & large diameter
(b) Low speed & large diameter
speed & small diameter
(v)Generator used in high-head plant are
(a)Small length & small cross section
(c) None

(c) High

(b) large length & smaller cross section

(vi) The water taking from intake & forebay to the turbine is called
(a) Spillway (b) Tailrace
(c) Intake
(d) None
(vii) The ratio of maximum demand and connected load is called ______
(a) Diversity factor (b) plant capacity factor
(c) Demand factor
(d) all
(viii) the ratio of average demand and maximum demand is called
(a) load factor (b) Diversity factor (c) demand factor
(d) Plant capacity factor
(ix) choose the best correct answer
(a)plant capacity should be slightly more than maximum demand
(b) plant capacity should be slightly less than maximum demand
(c) Plant capacity should be equal to maximum demand
(x) Hydroelectric plant is
(a) conventional

(b) non conventional (c) both

(d) None

Q.2 A central substation supplied energy to two substation A and B, four feeder take off from
each of the substation as shown in figure , the maximum demand are given below
5
Central station :10 MW
Substation A: 6 MW
Substation B:8 MW
Feeders on substation A: 1.5, 2.0, 5.0, 3.0 MW
Feeders on substation B: 2.0, 5.0, 1.0 MW
Calculate the diversity factor among
(a) Substation
(b) Feeders on substation A and feeders on substation B
1.5MW
Subs
2 MW
5MW

Central
station A

tatio
nA

Subs
tatio
nB
Q3. Define the following

3 MW
2MW
5 MW
1 MW
5

(a) Penstock
(b)Spillway
(c)Tailrace
(d) Load factor
(e) Diversity factor
Q.4 What is stirling Engine and how it works ?

You might also like