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Question : When a spoon is to be electroplated with nickel the spoon is
Option 1: Dipped in a nickel sulphate solution
Option 2: Made anode and a pure nickel rod, the cathode
Option 3: Made of cathode and a pure nickel rod, the anode
Option 4: Coated with nickel sulphate and dried
Correct Answer: Made of cathode and a pure nickel rod, the anode
Solution : The answer is Made of a cathode and a pure nickel rod, the anode.
When electroplating a spoon with nickel, the spoon serves as the cathode. In the example of nickel electroplating, the cathode is
Question : The group of solar cells joined together in a definite pattern is called a:
Option 1: Battery
Option 2: Solar heater
Option 3: Solar cooker
Option 4: Solar cell panel
Correct Answer: Solar cell panel
Solution : The correct option is Solar cell panel.
A solar panel is a collection of solar cells that are connected in a certain arrangement. It is made up of a huge number of solar cells that are connected in a certain manner to generate
Question : A shopkeeper sells an article at a 10 percent loss after giving a discount of 20 percent. What is the ratio of the cost price and marked price of the article?
Option 1: 5 : 8
Option 2: 8 : 9
Option 3: 7 : 9
Option 4: 4 : 9
Correct Answer: 8 : 9
Solution : Let the marked price of the article be $MP$ and the cost price be $CP$. After giving a discount of 20%, Selling price = $\frac{80}{100}\times MP$ At loss of 10%, Selling price = $\frac{90}{100}\times CP$ Now, $\frac{80}{100}\times MP = \frac{90}{100}\times CP$ $\therefore \frac{MP}{CP}=\frac{90}{80}=\frac{9}{8}⇒CP:MP=8:9$
Question : Comprehension: Read the passage carefully and answer the following question.
Reservation is a part of 1________ action, which seeks to bring equality. The Constitution (One Hundred and Twenty Fourth Amendment) Bill, 2019, seeks to provide for the advancement of ‘economically weaker sections’ of citizens. Article 15 of the Constitution 2________ discrimination against any citizen on the grounds of race, religion, caste, sex or place of birth. However, the government may make special provisions for the 3________ of socially and educationally backward classes or for Scheduled Castes or Scheduled Tribes. The bill seeks to amend Article 15 to additionally permit the government to provide for the advancement of ‘economically weaker sections’. Further, up to 10% of the seats may be 4________ for such sections for admission in educational institutions. Such reservation will not apply to minority educational institutions.
Question
Identify a suitable title for the passage above.
Option 1: Prohibition of discrimination
Option 2: Article 15
Option 3: Constitution (124th Amendment) Bill 2019
Option 4: Reservation for Equality
Correct Answer: Reservation for Equality
Solution : The fourth option is correct.
The passage discusses the concept of reservation as a part of affirmative action to bring about equality. It specifically mentions the Constitution (One Hundred and Twenty Fourth Amendment) Bill, 2019, which aims to provide for the advancement of
Question : A boat can row 24 km in 6 hours in still water It can row 56 km downstream and 30 km upstream in 38 hours. What is the speed of the stream?
Option 1: 3 km/hr
Option 2: 5 km/hr
Option 3: 3.5 km/hr
Option 4: 4 km/hr
Correct Answer: 3 km/hr
Solution : Let the boat still in the water as B and the speed of the stream as S. ⇒ B = $\frac{24}{6}$ = 4 km/hr Downstream speed = (B + S) = (4 + S) km/hr Upstream speed = (B – S) = (4 –
Question : Directions: From the given alternative words, select the word that can be formed using the letters of the given word. OPERATION
Option 1: CAPTION
Option 2: ROTATION
Option 3: OPTION
Option 4: NATION
Correct Answer: OPTION
Solution : Given: OPERATION
First option: CAPTION; C is not present in the given word OPERATION. All the letters of CAPTION are not present in the word OPERATION. Second option: ROTATION; Two T's are not present in the given word OPERATION. All the letters of ROTATION are
Question : Directions: In a certain code language, A + B means A is the daughter of B; A – B means A is the wife of B; A × B means A is the brother of B; A ÷ B means A is the father of B. Based on the above, how is P related to T if P + Q – R ÷ S × T?
Option 1: Sister
Option 2: Mother's sister
Option 3: Daughter
Option 4: Mother
Correct Answer: Sister
Solution : Given: A + B means A is the daughter of B; A – B means A is the wife of B; A × B means A is the brother of B; A ÷ B means A is the father of B.
As per the given
Question : Directions: In the following question, select the missing number from the given series. 69, 70, 73, 78, 85, ?
Option 1: 94
Option 2: 90
Option 3: 85
Option 4: 76
Correct Answer: 94
Solution : Given: 69, 70, 73, 78, 85, ?
Add consecutive odd numbers to the previous term to find the next term of the series. 69 + 1 = 70; 70 + 3 = 73; 73 + 5 = 78; 78 + 7 = 85; 85 +
Question : Directions: In a certain code language, TRIGONOMETRY is written as YRTEMOTRIGON, and ACCELERATION is written as NOITARACCELE. How will APPRECIATION be written in that language?
Option 1: NOITAIAPPREC
Option 2: NOITIAAPPREC
Option 3: NOITAIAPRPEC
Option 4: NOITAIPAPREC
Correct Answer: NOITAIAPPREC
Solution : Given: TRIGONOMETRY is written as YRTEMOTRIGON, and ACCELERATION is written as NOITARACCELE.
Divide the word TRIGONOMETRY into two halves→TRIGON/OMETRY Reverse the second part→YRTEMO Now, the reversed part is written first followed by the first part. part→YRTEMOTRIGON Thus, TRIGONOMETRY is coded as YRTEMOTRIGON. Divide the word
Question : Directions: In the following question, the given sentence has four parts marked P, Q, R, and S. Choose the part of the sentence with the error and select it as your answer. If there is no error, select ' No Error (S)' as your answer.
The Kepler Space Telescope, (P) / launched on 2009, was designed (Q) / to find planets around other stars. (R) / No Error (S)
Option 1: 1
Option 2: 2
Option 3: 3
Option 4: 4
Correct Answer: 2
Solution : The error lies in the second part of the sentence.
There is an error in the use of the appropriate preposition in the sentence. The preposition "on" should be replaced with "in" to correctly indicate the year when the Kepler Space Telescope was launched. 'On'
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