BEL Trainee Engineer CS Mock Test- 5 Free Online Test 2026
Full Mock Test & Solutions: BEL Trainee Engineer CS Mock Test- 5 (100 Questions)
You can boost your Computer Science Engineering (CSE) 2026 exam preparation with this BEL Trainee Engineer CS Mock Test- 5 (available with detailed solutions).. This mock test has been designed with the analysis of important topics, recent trends of the exam, and previous year questions of the last 3-years. All the questions have been designed to mirror the official pattern of Computer Science Engineering (CSE) 2026 exam, helping you build speed, accuracy as per the actual exam.
Mock Test Highlights:
- - Format: Multiple Choice Questions (MCQ)
- - Duration: 120 minutes
- - Total Questions: 100
- - Analysis: Detailed Solutions & Performance Insights
- - Sections covered: Computer Science, English, Computer Knowledge, Reasoning
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Detailed Solution: Question 1
Let P and Q be two propositions, ¬(P↔Q) is equivalent to:
- P ↔ ¬ Q
- ¬ P↔ Q
- ¬ P ↔ ¬ Q
- Q ↔ P
Detailed Solution: Question 2
for (i = 0; i < n; i ++) fork ( )
The code given above is executed in a process. The total number of child processes created in that particular process is
Detailed Solution: Question 3
Which of the following statements is false about trees?
Detailed Solution: Question 4
Consider the following justifications for commonly using the two-level CPU scheduling:
- It is used when memory is too small to hold all the ready processes.
- It is used because its performance is same as that of the FIFO.
- It is used because it facilitates putting some set of processes into memory and a choice is made from that.
- It is used because it does not allow to adjust the set of in-core processes.
Which of the following is true?
Detailed Solution: Question 5
Which of the following are not the examples of dynamic programming?
Detailed Solution: Question 6
Consider a relation R = ABCDEFGH. Primary key AB and additional functional dependencies are
AB → CEFGH, A → D, F → G, FB → H, HBC → ADEFG, FBC → ADC.
What would be the relation after decomposing?
(given FD into 2NF)
(given FD into 2NF)
Detailed Solution: Question 7
Which of the following sequence of array elements forms a heap?
Detailed Solution: Question 8
What will be the output of following program segment?
main()
{
struct s
{
char *z; int i; struct s *p;
};
static struct s a[]={ {"Nagpur",1,a+1}, {"Raipur",2,a+2},
{"Kanpur",3,a}};
struct s *ptr=a;
printf(" %s",++(ptr → z);
printf(" %s",a[(++ptr) → i].z);
printf(" %s",a[--(ptr → p → i].z);
}
{
struct s
{
char *z; int i; struct s *p;
};
static struct s a[]={ {"Nagpur",1,a+1}, {"Raipur",2,a+2},
{"Kanpur",3,a}};
struct s *ptr=a;
printf(" %s",++(ptr → z);
printf(" %s",a[(++ptr) → i].z);
printf(" %s",a[--(ptr → p → i].z);
}
Detailed Solution: Question 9
Detailed Solution: Question 10
Verify whether the given grammar is LL(1) or LR(0)?
S → 1AB|€
A → 1AC|0C
B → 0S
C → 1
A → 1AC|0C
B → 0S
C → 1
Detailed Solution: Question 11
Consider statement in C programming language:
a+ = b >> 24! = 4;
The number of tokens identified by the lexical phase while scanning the above statements is _________.
Detailed Solution: Question 12
How many 8 x 1 MUX are required to construct 512 x 1 MUX?
Detailed Solution: Question 13
For the matrix A = 
, answer the following:
The eigen values of A3 are _________________.
, answer the following:Detailed Solution: Question 14
Consider the following segment table in segmentation scheme:
What happens if the logical address requested is segment Id 2 and offset 1000?
Detailed Solution: Question 15
Consider the following grammar.
S → ABa | BA, A → Aa | Abc | d | e, B → Bab | e
What will be the grammar after converting left recursion to right recursion?
Detailed Solution: Question 16
A message consisting of 2400 bits is to be passed over the Internet. The message is passed to the transport layer which appends a 150-bits header, followed by the network layer which uses a 120-bits header. Network layer packets are transmitted via two networks, each of which uses a 26-bits header. The destination network only accepts up to 900-bits long. The number of bits, including headers delivered to the destination network, is:
Detailed Solution: Question 17
An algebraic system (A, *) is said to be a _____, if the following conditions are satisfied:
- * is closed operation.
- * is associative operator.
- There is an identity in A.
- Every element in A has an inverse.
Detailed Solution: Question 18
In a binary tree with n nodes, every node has an odd number of descendants. Every node is considered to be its own descendant. What is the number of nodes in the tree that has exactly one child?
Detailed Solution: Question 19
An instruction is read from the memory having the value stored in the program counter as 716. The number contained in the address part of the instruction is 36. What will be the effective address in relative address mode given the value pointed by index register is 12:
Detailed Solution: Question 20
Directions: Select the most appropriate idiom (in the context) to fill in the sentence.
While they may be able to save some money remaining at home, it's not as if they were _______________ beforehand.
Detailed Solution: Question 21
Directions: In each of the following questions, a sentence has been given in Active (or Passive) Voice. Out of the four alternatives suggested, select the one that best expresses the same sentence in Passive/ Active Voice.
India won freedom with the blood and sweat of hundreds and thousands of Indians.
Detailed Solution: Question 22
Direction: Read the following passage carefully and answer the questions. Your answer to these questions should be based on passage only.
The news that the Indian Railways are going to incur a shortfall of Rs 1000 crore in their resources generation - and will, therefore, have to seek budgetary support to that extend - will not surprise many. That's a scenario that has been played out for years now, and the outcome, too, has been predictable - with railways budget doing is duty by doling out public money. But it's time to look at the problem differently, in view of the current concerns of the government in economizing its charity and the feeling that the railways have to stand on their own legs.
The Railways have, over the last few months, continued to experience a shortfall of Rs 85 crore per month, a feature that could add to their woes if it continue. Fall in expected goods traffic, in the rate per tonne and also a dip in passenger traffic have contributed to the shortfall. All these may not be new concerns for the Railways; the relevant point, however, is how the system and the government hope to tackle it.
Clearly, budgetary support should be considered only in the last instance, after various measures to both reduce expenditure and raise resources have been tried out. Consider subsidies on passenger traffic --- the expenditure which really digs into the government's coffers. In fact, passenger traffic subsidy accounted for nearly 90 per cent of the railways' losses in 1992/93, with freight traffic subsidies taking up the rest.
Freight traffic subsidy cuts should prove more easy if this year's budget exercise is any indication. Till now, sixteen commodities were subsidized. In 1993/94, budget subsidy on four commodities were removed. Prices did not rise, there was little protest and now the Railways ought to be emboldened to do more Reduction in passenger subsidies is more tricky given the dependence of such a large population, mostly poor, on the system and most governments have been reluctant to do much. In fact, passenger rates have been hiked very few times and that, too, only in recent years.
One area where the Railways could do a lot more pruning is in shutting uneconomic branch lines. For instance, in 1992/93 it was found that 114 branch lines contributed a loss of Rs 121 crore.
To its credit, however, the railways have been looking around for sources of funds other than the budget.
Q. Which of the following is true regarding the passenger fare charged by the Railways?
The news that the Indian Railways are going to incur a shortfall of Rs 1000 crore in their resources generation - and will, therefore, have to seek budgetary support to that extend - will not surprise many. That's a scenario that has been played out for years now, and the outcome, too, has been predictable - with railways budget doing is duty by doling out public money. But it's time to look at the problem differently, in view of the current concerns of the government in economizing its charity and the feeling that the railways have to stand on their own legs.
The Railways have, over the last few months, continued to experience a shortfall of Rs 85 crore per month, a feature that could add to their woes if it continue. Fall in expected goods traffic, in the rate per tonne and also a dip in passenger traffic have contributed to the shortfall. All these may not be new concerns for the Railways; the relevant point, however, is how the system and the government hope to tackle it.
Clearly, budgetary support should be considered only in the last instance, after various measures to both reduce expenditure and raise resources have been tried out. Consider subsidies on passenger traffic --- the expenditure which really digs into the government's coffers. In fact, passenger traffic subsidy accounted for nearly 90 per cent of the railways' losses in 1992/93, with freight traffic subsidies taking up the rest.
Freight traffic subsidy cuts should prove more easy if this year's budget exercise is any indication. Till now, sixteen commodities were subsidized. In 1993/94, budget subsidy on four commodities were removed. Prices did not rise, there was little protest and now the Railways ought to be emboldened to do more Reduction in passenger subsidies is more tricky given the dependence of such a large population, mostly poor, on the system and most governments have been reluctant to do much. In fact, passenger rates have been hiked very few times and that, too, only in recent years.
One area where the Railways could do a lot more pruning is in shutting uneconomic branch lines. For instance, in 1992/93 it was found that 114 branch lines contributed a loss of Rs 121 crore.
To its credit, however, the railways have been looking around for sources of funds other than the budget.
Detailed Solution: Question 23
Directions: Given below is a sentence with a blank. From the options below, choose the correct idiom(s) that can fit in the blank to make the sentence grammatically and meaningfully correct.
Making the step-up to inter-county football after an absence of two years is ______________
I. a tall order
II. a viper in bosom
III. an uphill battle
II. a viper in bosom
III. an uphill battle
Detailed Solution: Question 24
Directions: In the following question, a sentence is given with some part of it marked in underline. You have to identify the option that would replace the underline part and make the sentence contextually and grammatically correct.
Unlike cereals, edible oils, and vegetables, where inflation is regularly reported, falling prices of Rabi crops like Chana seldom make it to a nation media.
Detailed Solution: Question 25
Directions: In the following question, a sentence is given with a phrase highlighted in underline. This phrase may or may not be correct. Following the sentence are four phrases, from which one phrase will replace the given phrase.
An aeroplane flew a laser altimeter over the Arctic and Antarctic to gather some limited data-sets that could eventually be used to tie the two IceSat missions together.
Detailed Solution: Question 26
You need the insert function dialog box. How do you get it?
Detailed Solution: Question 27
Which of the following syntax is correct regarding to SUM function in Excel?
Detailed Solution: Question 28
Detailed Solution: Question 29
In the following question, assuming the given statements to be true, find which of the conclusion among given conclusions is/are definitely true and then give your answer accordingly.
Statement: P < Q < R < S = T
Conclusion:
I. Q < T
II. P > S
III. R = T
Detailed Solution: Question 30
