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75 Minutes
30.04.2013 – 17:40
CENG 230 Midterm Exam
There are 30 questions (each 3.4 points) for a total of 100 points.
Exam Type: A
All questions are multiple choice, no points will be lost for wrong answers.
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Student ID:
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AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
7) What is printed by the following Fortran
1) Which operator below has highest
program?
precedence in a fortran expression?
a=2 ; b=3
if(a-3)10,20,10
a).AND. b).OR c).EQV. d).NOT. e) .NEQV.
10 if(a-2)40,50,40
.
50 print*,'a' ; goto 60
20 print*,'b' ; goto 60
2) What is the result of the following
40 print*,a,b
expression?
60 stop
(2*7/3+mod(7,3)+ 2**1**3)/50
End
a)0
b) 7
c) 13
d) 7.33333
e) 13.33333
3) What is the output of the following
program?
a=4 ; b=5 ; c=10 ; x=2 ; y=35
if (a>=b) then
print*,a
if (a<c) print*,c
else
print*,b
if (a<x) then
print*,x
endif
endif
end
a)
4.0
b)
5.0
c) 5
d) 2.0
e) 10.0
4) What is the output of the fragment below?
real x
x=2-8/3
print*,x
end
a)0
b) -2
c) -3.0 d)-2.66666 e) 0.0
5) mod (i,j) is equivalent to
a) i/j*j
b) i/j
c) i-i/j*j
d) i/j*i
e) i-i/j*i
6) What is the FORTRAN equivalent of the
following algebraic assignment statement?
y = a1/2
a)
b)
c)
d)
e)
y
y
y
y
y
=
=
=
=
=
a ** 1.0 / 2.0
a ** (1 / 2)
a ** (1.0/2)
(a ** 1.0) / 2.0
(a ** 1)**2
a) a
b) 2
c) b
d) 3
e) 2
3
8) What does the following fortran program
do?
(remember the recitation hours)
ic=0
m=9999
read*,n
100 read*,nm
ic=ic+1
if(nm<m)m=nm
if(ic<n)goto 100
print*,'result is=',m
stop
end
a) Sum of integers from 1 to 9999.
b) Smallest of n integers,supposing that the
numbers are all less than 9999.
c) Average of 9999 integers.
d) Minimum of n integers, supposing that the
numbers are all greater than 9999.
e) Maximum of n integers, supposing that the
numbers are all less than 9999.
9) What will be the printed value of k if m
is read as 2?
k=1; n=1
read*,m
10 n=n+1
k=k-m
if(n<=m)goto 10
print*,k
end
a) 0
b) -1
c) -2
d) -3
e) 1
10) What will be printed by the following
program?
logical karar
karar=.NOT.5<=5.EQV.5<5
print*,karar
end
a) 0
b) 5
c) Error
d) F
e) T
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
11) What is the output of the following
program?
integer x,y,z
x=5; y=50; z=500
if(.NOT.(x.NE.y))then
x=50
else if(3<=4.OR.y.EQ.z)then
y=500
else if(.NOT.y/=z/10)then
z=5000
endif
print*,x+y+z
end
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
15) What is the output produced by the
following program?
i=5
goto(1,2,3)1-i
1 print*,1
2 print*,2
3 print*,3
End
a) 1250
16)An algorithm is
b) 5550
c) 1005
d) 5505
e) 600
12) Which of the expression results the value
‘Ankara’ ?
a)
b)
c)
d)
e)
HAnkara
“6HAnkara”
‘An’ .AND. ‘kara’
Han//Hkara
2Han//4Hkara
13) What will be printed by the following
fortran program?
integer i,k
k=20 ; i=3
10 if(i>k)stop
if(mod(i,2).EQ.0) then
k=k/4
else
if(mod(i,3).EQ.0) then
k=k/3
else
k=k-1
endif
endif
print*,i,k ; i=i+2 ; goto 10
end
a)5 5
3 6
b)3 8
5 5
c)3 6 5 5
d) 3 6
5 5
e) 5 5
1 7
14) What will be printed by the following
program?
real x; integer y
x=5/3*(1./2)
y=x
print*,x , y
end
a) 0.5 0
d)0.5 0.0
b)0.0 0
e)0.5 0.5
c)0 0.0
a)No Output b) 1
2
3
c) 2
3
d) 3
e)
-4
a) a procedure consisting of only fortran77
and/or
90
programming
instructions
for
solving a problem.
b) Analysis step by step of a given problem.
c) Analysis byte by byte of input data
stream (record).
d)a procedure consisting of precisely
defined steps for solving a problem.
e)
Design of output produced by the
computer program.
17) Which of the below is an incorrect
declaration?
a) integer i ; real x
b) integer i , real x
c) character (len=10) letter_1 , letter_2
d) complex building ! xyz
e) logical relations; logical speaking
18) What is the content of variable N after
the execution of the following code?
integer X
real N
X=5
N=X/2/X
print*,N; end
a) 0.0 b)0
c)0.5
d)12.5
e) Error
19) What is the content of variable N after
the execution of the following code?
integer X
real N
X=5
N=X/(2/X)
print*,N; end
a)
0.0
b) 0
c) Error d) 12.5 e)
0.5
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
20) What is the content of variable N after
the execution of the following code?
integer X
real N
X=5
N=X/(2.0/X)
print*,N; end
a)
0.0 b)
0
c) 0.5 d) Error e)
a)
b)
c)
d)
e)
12.5
21) What will be the output of the program?
integer a
a=1.5
if(a.EQ.1)then
print*,a+1
else
print*,a-1
endif
end
a) 2.5
b) 0.5
c)
2
d)
0
e)
3
i=5
if(1-i)1,2,3
1 print*,1
2 print*,2
3 print*,3
End
b) 1
2
3
c) 2
3
d) 3
m1=739 ; m2= -558
x1=3.14159 ; x2=314.159
write(*,10)x1,x2,m1,m2
10 format(2(f6.2,1x)/2i3)
end
b) 3.142 314.16
739
c) 3.14 314.16
739-55
d) 3.14 314.16
739-558
e) 3.14 314.16
739***
25) If the input stream is
B23-796789-157BBBBB
then, what will be printed by the following
code?
(Where letter B represents a blank character)
a)
b)
c)
d)
e)
BB23***BB729
23BB****BB729
BB23****729
BB23***xx729
BB23-1572x729
26) If x1=367.25, x2=3.6725, x3=-0.36725 and
x4=2.32 then what will be printed by the
following code?
(Where letter B represents a blank character)
e)
Write(*,20)x1,x4,x3,x2
20 format(f6.1,f5.3,f6.3,f2.1)
-4
23) What is the output of the following code?
a) 3.14 1x 314.15
739****
<1,2>
1+2i
1.0+2.0*sqrt(-1)
<1.0 , 2.0>
Error
read(*,75) K1,K2,K3,K4
75 format(I3,4x,I3,2I4)
Write(*,86)K1,K3,K4,K2
86 format(I4,I3,I4,2x,I3)
22) What will be printed by the following
statements?
a)No
Output
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
24) What will be printed by the following
program?
complex a
a=(1,2)
print*,a
end
a)
b)
c)
d)
e)
0367.22.32B-0.3673.
B367.33.32B**.367**
B367.32.320-0.367**
0367.33.320-0.368***
B367.23.320-0.368****
27) If x=-25.63E1 then what will be printed
by the following segment?
write (*,70)x
70 (e10.3)
a)
b)
c)
d)
e)
-25.63E+01
-256.300
-2.563E+02
-2563.E-01
–0.256E+03
A A A A A A A A A A A A A A A A A A A A A A A
28) What is the output produced by the
following program?
!integer pi
5 format("pi=",f6.4)
pi=3.14159
write(*,5)pi
end
a)
b)
c)
d)
e)
pi=3
pi=3.0000
pi=3.1415
pi=3.1416
pi=******
29) Format Code T is used in form of Tn,
where transfer of data starts from n-th
position relative to the beginning of a
record.
If the input record is
123456789022222222
then what are the contents M and N after the
execution of read statement below?
read (*,55)M,N
55 format(T8,I3,T5,I4)
a) M = 890 and N = 5678
b) M = 902 and N = 6789
c) M = 123 and N = 4567
d) M = 876 and N = 5432
e) M = 890 and N = 2222
30) What does the following fortran program
do?
(remember the recitation hours)
read*,A,E
if(A<=0) goto 20
x=1
50 s=(x+A/x)/2
if(abs(a-s**2)<= e) goto 100
x=s; goto 50
100 print*, '.... of' , a, 'is=',s
stop
20 print*,'there is no ... for ', a
end
a) Finds a real number S between two real
numbers A and X.
b) Finds Square root of a real number A
within a given error E.
c) GCD (Greatest Comon Divisor) of real
number A.
d) Cube root of a real number A.
e) It looks like finding the square root of A
but depending on E
it may find cube root also.
A A A A A A A A A A A A A A A A A A A A A A A