Staff Selection Commission Sub Inspector Exam
Question : Directions: If 18th October 2006 was Wednesday, then what was the day of the week on 17th October 2000?
Option 1: Tuesday
Option 2: Wednesday
Option 3: Monday
Option 4: Sunday
Correct Answer: Tuesday
Solution : Given: 18th October 2006 = Wednesday.
In a normal year, we have one odd day; in a leap year, we have two odd days. So, the total odd days – 18th October 2000 to 18th October 2001→1 odd day 18th October 2001 to 18th October
Question : The cooling by desert cooler is based on:
Option 1: hot air replacement
Option 2: air dehydration
Option 3: evaporative cooling
Option 4: air rehydration
Correct Answer: evaporative cooling
Solution : The correct option is evaporative cooling.
The cooling provided by a desert cooler is based on the evaporative cooling principle. This process involves the evaporation of water into the surrounding air, which causes cooling. Desert coolers work well in hot, dry locations where
Question : Select the most appropriate meaning of the given idiom. Wild goose chase
Option 1: Doing something crazy
Option 2: Working very hard for something
Option 3: To betray someone
Option 4: Futile search
Correct Answer: Futile search
Solution : The correct choice is the fourth option.
The idiom "wild goose chase" means a completely useless search and a waste of time.
This makes the fourth option, which states "futile search", the appropriate meaning of the given idiom.
Question : Select the INCORRECTLY spelt word.
Option 1: Colomn
Option 2: Scale
Option 3: Peace
Option 4: Square
Correct Answer: Colomn
Solution : The first option is correct.
The incorrectly spelled word is colomn. The correct spelling is column. The error involves replacing "o" with "u," referring to a vertical pillar or post typically used for support.
The meanings of the other options are as follows:
Question : A person observes that the angle of elevation at the top of a pole of height 5 metres is 30°. Then the distance of the person from the pole is:
Option 1: $5\sqrt3$ metres
Option 2: $\frac{5}{\sqrt3}$ metres
Option 3: $\sqrt3$ metres
Option 4: $10\sqrt3$ metres
Correct Answer: $5\sqrt3$ metres
Solution : Given: A person observes that the angle of elevation at the top of a pole of height 5 metres is 30°. We know the formula, $\tan\theta = \frac{\text{Height}}{\text{Base}} = \frac{\text{Height of tower}}{\text{Distance of person from pole}}$ In $\triangle ACB$, $\tan\ 30°=\frac{AB}{BC}$ ⇒ $\tan30° =
Question : A passenger train, 150 m long, is travelling at a speed of 36 km/hr. If a man is cycling in the direction of a train at 9 km/hr, the time taken by the train to pass the man is:
Option 1: 10 seconds
Option 2: 15 seconds
Option 3: 18 seconds
Option 4: 20 seconds
Correct Answer: 20 seconds
Solution : Distance to be covered = 150 m Relative speed = 36 – 9 = 27 km/hr = 27 × $\frac{5}{18}$ = $\frac{15}{2}$ m/s $\therefore$ Time = $\frac{\text{length of the train}}{\text{Relative Speed}}$ = $\frac{150}{\frac{15}{2}}$ = 20 seconds Hence, the correct answer is 20 seconds.
Question : If the area of the base of a cone is 154 cm2 and the area of its curved surface is 550 cm2, then its volume is:
Option 1: 1232 cm3
Option 2: 1122 cm3
Option 3: 1434 cm3
Option 4: 1535 cm3
Correct Answer: 1232 cm3
Solution : Given: Area of the base of a cone = 154 cm2 Curved surface area of cone = 550 cm2 We know that, Area of the base of the cone with radius $r=\pi r^2$ ⇒ $\pi r^2 = 154$ ⇒ $\frac{22}{7}\times r^2
Question : The given pie chart represents the popularity of ice-cream flavours in the year 2015.
In 2015, if the total sale of the vanilla flavour is INR 3,300, then the total sale (in INR) for the chocolate flavour is:
Option 1: INR 3,320
Option 2: INR 4,120
Option 3: INR 4,100
Option 4: INR 5,160
Correct Answer: INR 5,160
Solution : Total sales of vanilla flavour = INR 3,300 16.5% of the total sales of ice cream flavours = 3300 1% of total sale of ice cream flavours = $\frac{3300}{0.165}$ = 20000 Total sales of chocolate flavour = 25.8% of 20000 = 5160 Hence, the
Question : Select the most appropriate ANTONYM of the given word.
OFFBEAT
Option 1: conventional
Option 2: unique
Option 3: freaky
Option 4: weird
Correct Answer: conventional
Solution : The correct choice is the first option.
Offbeat typically refers to something non-traditional, or different from the mainstream.
Conventional means conforming to established customs or widely accepted practices, making it the correct antonym.
Question : Directions: Four pairs of numbers have been given, out of which three are alike in some manner, while one is different. Choose out the odd one.
Option 1: 6, 12
Option 2: 6, 16
Option 3: 12, 8
Option 4: 24, 4
Correct Answer: 6, 12
Solution : Let's check each option –
First option: 6, 12; 6 × 12 = 72 Second option: 6, 16; 6 × 16 = 96 Third option: 12, 8; 12 × 8 = 96 Fourth option: 24, 4; 24 × 4 = 96
Therefore, the number
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