General Mental Ability – Mirror and water images
Assam Public Service Commission (APSC)
Combined Competitive Examination (CCE)
Preliminary Examination – General Studies Paper II (Objective Type, 200 Marks)
Topic: General Mental Ability
Sub-Topic: Mirror and Water Images
These questions test your understanding of mirror images (left–right reversal) and water images (top–bottom reversal). Choose the correct option.
Mirror and Water Images MCQs
MCQ 1
A mirror image reverses an object in which direction?
A. Top–bottom
B. Left–right
C. Diagonal
D. Circular
Correct Answer: B
Explanation: A vertical mirror causes left–right reversal, not top–bottom.
MCQ 2
A water image reverses an object in which direction?
A. Left–right
B. Diagonal
C. Top–bottom
D. Circular
Correct Answer: C
Explanation: Water image is a reflection in a horizontal plane, reversing top and bottom.
MCQ 3
Which letter looks the same in mirror image?
A. B
B. E
C. M
D. L
Correct Answer: C
Explanation: Capital M is vertically symmetrical.
MCQ 4
Which letter does NOT change in water image?
A. A
B. M
C. U
D. H
Correct Answer: D
Explanation: H has both vertical and horizontal symmetry.
MCQ 5
Mirror image of the word “ON” will be:
A. ON
B. NO
C. ИO
D. OИ
Correct Answer: D
Explanation: Letters reverse their left–right orientation.
MCQ 6
Water image of the number 6 appears as:
A. 6
B. 9
C. Inverted 6
D. Same as mirror image
Correct Answer: C
Explanation: Water image flips the number top–bottom.
MCQ 7
Which number remains unchanged in mirror image?
A. 2
B. 3
C. 8
D. 9
Correct Answer: C
Explanation: 8 is symmetrical vertically.
MCQ 8
Mirror image of b is:
A. b
B. d
C. p
D. q
Correct Answer: B
Explanation: Vertical reflection of b becomes d.
MCQ 9
Water image of p will resemble:
A. p
B. q
C. b
D. d
Correct Answer: C
Explanation: Horizontal reflection turns p into b.
MCQ 10
Which figure has both mirror and water symmetry?
A. L
B. T
C. X
D. P
Correct Answer: C
Explanation: X is symmetrical both vertically and horizontally.
MCQ 11
Mirror image of E looks like:
A. Ǝ
B. E
C. M
D. 3
Correct Answer: A
Explanation: Vertical mirror reverses the letter E.
MCQ 12
Water image of M appears as:
A. M
B. W
C. E
D. Ǝ
Correct Answer: B
Explanation: Horizontal reflection turns M into W.
MCQ 13
Which letter changes in mirror image but not in water image?
A. A
B. B
C. M
D. U
Correct Answer: D
Explanation: U has vertical symmetry but not horizontal symmetry.
MCQ 14
Mirror image of “bqp” is:
A. pqd
B. bqp
C. pqb
D. dqᵇ
Correct Answer: A
Explanation: Each letter reverses and order is reversed.
MCQ 15
Which letter has only horizontal symmetry?
A. A
B. B
C. H
D. M
Correct Answer: B
Explanation: Capital B is symmetrical horizontally.
MCQ 16
Mirror image of number 3 looks like:
A. 3
B. Ɛ
C. E
D. ∈
Correct Answer: B
Explanation: Left–right reversal of 3 forms Ɛ.
MCQ 17
Water image of U appears as:
A. U
B. ∩
C. n
D. Same as mirror image
Correct Answer: B
Explanation: Top–bottom inversion of U forms ∩.
MCQ 18
Which letter has no symmetry?
A. A
B. H
C. N
D. O
Correct Answer: C
Explanation: N has neither vertical nor horizontal symmetry.
MCQ 19
Mirror image of “LAMP” is:
A. PMAL
B. ᑫMA⅂
C. ԀMAL
D. PMA⅂
Correct Answer: D
Explanation: Word order reverses and letters flip horizontally.
MCQ 20
Water image of “BAT” appears as:
A. BAT
B. Upside-down BAT
C. TAB
D. Mirror BAT
Correct Answer: B
Explanation: Water image flips the word top–bottom, not left–right.
MCQ 21
Which number has horizontal symmetry?
A. 1
B. 2
C. 3
D. 8
Correct Answer: D
Explanation: 8 is symmetrical in both directions.
MCQ 22
Mirror image of 7 looks like:
A. 7
B. Γ
C. L
D. Same as water image
Correct Answer: B
Explanation: Vertical reflection of 7 forms Γ.
MCQ 23
Water image of E appears as:
A. E
B. Ǝ
C. M
D. Same as mirror image
Correct Answer: A
Explanation: E has horizontal symmetry.
MCQ 24
Which letter changes in both mirror and water image?
A. H
B. O
C. P
D. X
Correct Answer: C
Explanation: P lacks both symmetries.
MCQ 25
Mirror image of q is:
A. p
B. b
C. d
D. g
Correct Answer: C
Explanation: Vertical reflection of q becomes d.
MCQ 26
Water image of d becomes:
A. b
B. p
C. q
D. d
Correct Answer: B
Explanation: Horizontal reflection of d becomes p.
MCQ 27
Which letter looks same in mirror image but not in water image?
A. M
B. O
C. H
D. X
Correct Answer: A
Explanation: M has vertical symmetry but not horizontal.
MCQ 28
Mirror image problems mainly test:
A. Arithmetic ability
B. Language skill
C. Spatial orientation
D. Memory
Correct Answer: C
Explanation: These questions assess visual–spatial reasoning.
MCQ 29
Water image problems are easiest solved by imagining:
A. Vertical mirror
B. Rotation
C. Reflection in water
D. Shadow
Correct Answer: C
Explanation: Visualizing a horizontal reflecting surface helps.
MCQ 30
Mirror and water image questions belong to:
A. Numerical ability
B. Verbal reasoning
C. General Mental Ability
D. General Awareness
Correct Answer: C
Explanation: They test mental visualization and reasoning skills.
✅ APSC Exam Relevance
These MCQs comprehensively cover left–right reversal, top–bottom inversion, symmetry of letters and numbers, and are fully aligned with APSC CCE GS Paper II – General Mental Ability.
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