List of top General Aptitude Questions on Logical and Analytical Reasoning Skills asked in GATE Civil Engineering

An electricity utility company charges ₹7 per kWh. If a 40-watt desk light is left on for 10 hours each night for 180 days, what would be the cost of energy consumption? If the desk light is on for 2 more hours each night for the 180 days, what would be the percentage-increase in the cost of energy consumption?

An object is said to have an n-fold rotational symmetry if the object, rotated by an angle of 2πn \frac{2\pi}{n} , is identical to the original. 
Which one of the following objects exhibits 4-fold rotational symmetry about an axis perpendicular to the plane of the screen? 
 

A color model is shown in the figure with color codes: Yellow (Y), Magenta (M), Cyan (Cy), Red (R), Blue (Bl), Green (G), and Black (K). Which one of the following options displays the color codes that are consistent with the color model? 

A circle with center at (x,y)=(0.5,0) (x, y) = (0.5, 0) and radius = 0.5 intersects with another circle with center at (x,y)=(1,1) (x, y) = (1, 1) and radius = 1 at two points. One of the points of intersection (x,y) (x, y) is:
Rohit goes to a restaurant for lunch at about 1 PM. When he enters the restaurant, he notices that the hour and minute hands on the wall clock are exactly coinciding. After about an hour, when he leaves the restaurant, he notices that the clock hands are again exactly coinciding. How much time (in minutes) did Rohit spend at the restaurant?

The figures, I, II, and III are parts of a sequence. Which one of the following options comes next in the sequence as IV? 

Three villages P, Q, and R are located in such a way that the distance PQ = 13 km, QR = 14 km, and RP = 15 km, as shown in the figure. A straight road joins Q and R. It is proposed to connect P to this road QR by constructing another road. What is the minimum possible length (in km) of this connecting road?
{Note: The figure shown is representative.}

A business person buys potatoes of two different varieties P and Q, mixes them in a certain ratio, and sells them at ₹192 per kg. 
The cost of variety P is ₹800 for 5 kg. 
The cost of variety Q is ₹800 for 4 kg. 
If the person gets an 8% profit, what is the P : Q ratio (by weight)? 

Consider a five-digit number PQRST that has distinct digits P, Q, R, S, and T, and satisfies the following conditions:
1. P<Q P<Q
2. S>P>T S>P>T
3. R<T R<T
If integers 1 through 5 are used to construct such a number, the value of P is:
 

For the clock shown in the figure, if
O* = O Q S Z P R T, and
X* = X Z P W Y O Q,
then which one among the given options is most appropriate for P*?

A bag contains Violet (V), Yellow (Y), Red (R), and Green (G) balls. On counting them, the following results are obtained: 
(i) The sum of Yellow balls and twice the number of Violet balls is 50. 
(ii) The sum of Violet and Green balls is 50. 
(iii) The sum of Yellow and Red balls is 50. 
(iv) The sum of Violet and twice the number of Red balls is 50.

In the context of the given figure, which one of the following options correctly represents the entries in the blocks labelled (i), (ii), (iii), and (iv), respectively?

During a half-moon phase, the Earth-Moon-Sun form a right triangle. If the Moon-Earth-Sun angle at this half-moon phase is measured to be 89.85∘89.85^\circ, the ratio of the Earth-Sun and Earth-Moon distances is closest to:
Which one of the given options is a possible value of x x in the following sequence? 3,7,15,x,63,127,255 3, 7, 15, x, 63, 127, 255
On a given day, how many times will the second-hand and the minute-hand of a clock cross each other during the clock time 12:05:00 hours to 12:55:00 hours?
In the given text, the blanks are numbered (i)–(iv). Select the best match for all the blanks. Text:
From the ancient Athenian arena to the modern Olympic stadiums, athletics \_\_\_\_ (i) \_\_\_\_ the potential for a spectacle. The crowd \_\_\_\_ (ii) \_\_\_\_ with bated breath as the Olympian artist twists his body, stretching the javelin behind him. Twelve strides in, he begins to cross-step. Six cross-steps \_\_\_\_ (iii) \_\_\_\_ in an abrupt stop on his left foot. As his body \_\_\_\_ (iv) \_\_\_\_ like a door turning on a hinge, the javelin is launched skyward at a precise angle.
Three distinct sets of indistinguishable twins are to be seated at a circular table that has 8 identical chairs. Unique seating arrangements are defined by the relative positions of the people. How many unique seating arrangements are possible such that each person is sitting next to their twin?
The chart below compares the Installed Capacity (MW) of four power generation technologies, T1, T2, T3, and T4, and their Electricity Generation (MWh) in a time of 1000 hours (h). \ \includegraphics[width=0.5\linewidth]{43image.png} The Capacity Factor of a power generation technology is defined as: Capacity Factor=Electricity Generation (MWh)Installed Capacity (MW)×1000 (h) \text{Capacity Factor} = \frac{\text{Electricity Generation (MWh)}}{\text{Installed Capacity (MW)} \times 1000 \, \text{(h)}} Which one of the given technologies has the highest Capacity Factor?
In the 4×4 4 \times 4 array shown below, each cell of the first three columns has either a cross (X) or a number, as per the given rule. \[ \begin{array}{|c|c|c|c|} \hline 1 & 1 & 2 & \,
\hline 2 & X & 3 & \,
\hline 2 & X & 4 & \,
\hline 1 & 2 & X & \,
\hline \end{array} \] Rule: The number in a cell represents the count of crosses around its immediate neighboring cells (left, right, top, bottom, diagonals). As per this rule, the maximum number of crosses possible in the empty column is:
If → \to denotes increasing order of intensity, then the meaning of the words [simmer → \to seethe → \to smolder] is analogous to [break → \to raze → \to \_\_\_\_\_\_\_].
Which one of the given options is appropriate to fill the blank?
In a locality, the houses are numbered in the following way: The house-numbers on one side of a road are consecutive odd integers starting from 301, while the house-numbers on the other side of the road are consecutive even numbers starting from 302. The total number of houses is the same on both sides of the road. If the difference of the sum of the house-numbers between the two sides of the road is 27, then the number of houses on each side of the road is
For positive integers p p and q q , with pq≠1 \frac{p}{q} \neq 1 , (pq)q=p(q−1) \left(\frac{p}{q}\right)^q = p^{(q-1)} . Then,